Effectiveness of Using Photographs of the Change in Standing Posture on Postoperative Patient-Reported Satisfaction and Quality of Life
This study was designed to evaluate the effectiveness of showing patients the change in their standing posture, before and after total knee replacement, using standing photographs (anterior, posterior, and lateral view), on improving self-reported quality of life and satisfaction. Full-length lower extremity radiographs and standing photographs were obtained prior to total knee replacement and 6 months after surgery in the study group. In the control group, radiographs and photographs were not obtained. The hip–knee–ankle angle and mechanical axis deviation were compared between the two limbs and two groups. Th...
Source: Journal of Knee Surgery - August 8, 2019 Category: Orthopaedics Authors: Misir, Abdulhamit Kizkapan, Turan Bilge Tas, Suleyman Kasim Yildiz, Kadir Ilker Uzun, Erdal Ozcamdalli, Mustafa Tags: Original Article Source Type: research

Primary Results of Medial Epicondylar Osteotomy in Patients with Severe Bilateral Varus Knee Candidate for Total Knee Replacement
Conclusion Medial epicondylar osteotomy is a safe technique with the well-controlled medial extensive release in the patients with severe varus deformity during total knee arthroplasty. [...] Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.Article in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: Journal of Knee Surgery)
Source: Journal of Knee Surgery - August 8, 2019 Category: Orthopaedics Authors: Mirzatolooei, Fardin Tabrizi, Ali Taleb, Hassan Hashemian, Mohammad Khalegi Safari, Mir Bahram Tags: Original Article Source Type: research

Accuracy of MRI Diagnosis of Meniscal Tears of the Knee: A Meta-Analysis and Systematic Review
This study aimed to evaluate the overall diagnostic value of magnetic resonance imaging (MRI) in patients with suspected meniscal tears. PubMed, Cochrane, Embase database updated to November 2017 were searched by the index words to identify qualified studies, including prospective cohort studies and cross-sectional studies. Literature was also identified by tracking using reference lists. Heterogeneity of the included studies was reviewed to select proper effects model for pooled weighted sensitivity, specificity, and diagnostic odds ratio (DOR). Summary receiver operating characteristic (SROC) analyses were performed for ...
Source: Journal of Knee Surgery - August 7, 2019 Category: Orthopaedics Authors: Wang, Wei Li, Zheng Peng, Hui-Ming Bian, Yan-Yan Li, Ye Qian, Wen-Wei Weng, Xi-Sheng Jin, Jin Yang, Xin-Yu Lin, Jin Tags: Original Article Source Type: research

A Last-Ditch Effort and Personalized Surgeon Letter Improves PROMs Follow-Up Rate in Sports Medicine Patients: A Crossover Randomized Controlled Trial
J Knee Surg DOI: 10.1055/s-0039-1694057Patient-reported outcomes measures (PROMs) are important for the advancement of orthopaedic surgeries. The primary difficulty while collecting PROMs is obtaining adequate follow-up rates. Therefore, it is important to find methods to improve follow-up, especially in patients who have failed to respond to initial attempts. We hypothesized that PROMs follow-up could be effectively increased by sending a salvage-effort personalized surgeon letter to sports medicine patients who failed to respond to initial (centralized electronic, mail, and/or phone contacts) PROMs collection 1 ye...
Source: Journal of Knee Surgery - August 7, 2019 Category: Orthopaedics Authors: Tariq, Muhammad B. Jones, Morgan H. Strnad, Greg Sosic, Elizabeth Spindler, Kurt P. Tags: Original Article Source Type: research

Comparison of Knee Kinematics and Kinetics during Stair Descent in Single- and Multi-Radius Total Knee Arthroplasty
This study demonstrates that patients who receive SR TKA have more improved kinematic normalization during stair descent postoperatively than those who received an MR TKA. [...] Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.Article in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: Journal of Knee Surgery)
Source: Journal of Knee Surgery - August 7, 2019 Category: Orthopaedics Authors: Sumner, Bonnie McCamley, John Jacofsky, David J. Jacofsky, Marc C. Tags: Original Article Source Type: research

Posterior Knee Capsulotomy for the Relief of Patellofemoral Joint Pain: Long-Term Follow-up
J Knee Surg DOI: 10.1055/s-0039-1693730Lack of full extension of the knee is a disabling condition that sometimes needs to be treated by a posterior capsulotomy of the knee. However, it is not clear if the full extension acquired can be kept throughout long-time follow-up. We conducted a retrospective cohort study of 20 patients diagnosed with minimal flexion contracture of the knee who underwent open posterior capsulotomy between 1990 and 2010. All patients (100%) presented with a preoperative Lysholm's score classified as poor or fair (mean = 58.6 ± 13.8, 95% confidence interval [CI]: 5...
Source: Journal of Knee Surgery - August 7, 2019 Category: Orthopaedics Authors: Leie, Murilo Anderson de Castro, Jacqueline Vieira Gomes, Jo ão Ellera Tags: Original Article Source Type: research

An Analysis of Symptomatic Meniscal Re-Tear Incidence in Two Age Populations: Differences in Older versus Younger Adults
J Knee Surg DOI: 10.1055/s-0039-1694042A symptomatic meniscal tear is one of the most common problems treated by an orthopaedic surgeon. Treatment ranges from observation to complete meniscectomy. Prior research has shown that contact stresses increase within the joint compartment after partial meniscectomy, thus leading to arthritis of the compartment. The purpose of the current study was to determine the incidence of meniscal re-tears in two populations of patients and identify potential factors predisposing to re-tear. A retrospective review of our relational database identified 1,930 arthroscopic partial meniscectomies...
Source: Journal of Knee Surgery - August 7, 2019 Category: Orthopaedics Authors: Labbe, Marc R. Elmallah, Randa K. Albert, Benjamin M. Malloch, Lacy Jones, LaRita C. Replogle, William H. Barrett, Gene R. Tags: Original Article Source Type: research

Factors Related to Meniscal Extrusion and Cartilage Lesions in Medial Meniscus Root Tears
J Knee Surg DOI: 10.1055/s-0039-1693708The purpose of this study was to identify factors affecting medial meniscus extrusion and cartilage degeneration in medial meniscus root tears (MMRT) and to determine the optimal cut-off values for the factors that predict disease severity. We retrospectively evaluated 86 consecutive patients diagnosed with an isolated MMRT by magnetic resonance imaging (MRI) examinations and arthroscopic procedures for 2 years. Patient-specific factors such as age, sex, the time between injury and MRI (mTIME), the time between injury and surgery (sTIME), the time between MRI and surgery (dTIME), Kell...
Source: Journal of Knee Surgery - August 7, 2019 Category: Orthopaedics Authors: Jeon, Sang-Woo Jung, Min Choi, Chong Hyuk Kim, Sung-Guk Kim, Sung-Hwan Tags: Original Article Source Type: research

Understanding the Implications of the Meniscal Ossicle: Patient Presentation, Treatment, and Outcomes
J Knee Surg DOI: 10.1055/s-0039-1693724The meniscal ossicle is observed in clinical practice, yet there currently is limited information on its potential clinical significance. The purpose of this study was to assess the clinical presentation, imaging findings, and clinical treatment and outcomes of a series of patients identified as having a meniscal ossicle. An institutional database was reviewed to identify knees with a meniscal ossicle. Clinical presentation, magnetic resonance imaging (MRI), treatment, and outcomes were analyzed. Radiographs were graded using Kellgren–Lawrence (KL) scores. MRIs were reviewed for...
Source: Journal of Knee Surgery - August 7, 2019 Category: Orthopaedics Authors: Bernard, Christopher D. McGauvran, Adam M. Desai, Vishal S. Frick, Matthew A. Tiegs-Heiden, Christin Camp, Christopher L. A. Krych, Aaron J. Collins, Mark S. Tags: Original Article Source Type: research

Comparative Analysis of Diaphyseal versus Metaphyseal tracker Placement in Imageless Navigation Systems for Total Knee Arthroplasty
J Knee Surg DOI: 10.1055/s-0039-1693747This work was designed to compare the intraoperative parameters and clinical and radiologic outcomes of total knee arthroplasty (TKA) during a minimum follow-up period of 2 years and to discuss the pros and cons of two different tracker placement (diaphyseal and metaphyseal) navigation systems. The null hypothesis was that there would be no clinical or radiologic difference between the two different systems. Primary TKA was performed in a total of 100 knees using the two different image-free navigation systems (group 1: diaphyseal tracker placement and group 2: metaphyseal trac...
Source: Journal of Knee Surgery - August 2, 2019 Category: Orthopaedics Authors: Yang, Jae-Hyuk Yoon, Jung-Ro Lee, Jin Kyu Tags: Original Article Source Type: research

Range of Motion at Discharge Predicts Need for Manipulation Following Total Knee Arthroplasty
J Knee Surg DOI: 10.1055/s-0039-1694024Stiffness following total knee arthroplasty (TKA) is a common complication that can result in unsatisfactory outcomes. Manipulation under anesthesia (MUA) has been widely employed to treat this problem. It is uncertain whether an association exists between range of motion (ROM) at discharge and need for MUA following primary TKA.A retrospective review of an institutional joint registry identified cases of primary TKA performed by three surgeons at a single institution over a 22-month period. A logistic regression model was used to examine the association between ROM at discharge and s...
Source: Journal of Knee Surgery - August 2, 2019 Category: Orthopaedics Authors: LaHaise, Kristen M. Vargo, Daniel V. Barrazueta, Gustavo A. Nairus, James G. Bono, James V. Talmo, Carl T. Tags: Original Article Source Type: research

How to Achieve an Accurate Anatomical Femoral Tunnel Technique in ACL Reconstruction in the Early Years of Your Consultancy? Femoral Offset Aimer Technique: Consistent and Reproducible Technique
J Knee Surg DOI: 10.1055/s-0039-1692993Femoral tunnel malposition is the most common reason for failure of primary anterior cruciate ligament reconstruction. There are several methods to identify the anatomical location of femoral footprint. Femoral offset aimer technique is one such technique which is easy to use and reliable. It is an ideal technique for junior and inexperienced surgeons to recreate the femoral tunnel in its anatomical footprint. The senior author (P.E.) has been using this technique for 30 consecutive cases in his first year of independent practice during his consultancy without any major intraoperative...
Source: Journal of Knee Surgery - August 2, 2019 Category: Orthopaedics Authors: Ellapparadja, Pregash Joseph, Ignatius Selvaratnam, Veenesh Tags: Original Article Source Type: research

Current Controversies in Total Knee Arthroplasty —Part 2
J Knee Surg 2019; 32: 703-703 DOI: 10.1055/s-0039-1693113 Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.Article in Thieme eJournals: Table of contents  |  Full text (Source: Journal of Knee Surgery)
Source: Journal of Knee Surgery - August 2, 2019 Category: Orthopaedics Authors: Friedman, Richard J. Tags: Special Focus Section Source Type: research

Postoperative Complications Causing Readmission in 30 Days after Total Knee Arthroplasty: A Retrospective Nested Case-Control Study of Risk Factors Based on Propensity Score Matching
J Knee Surg DOI: 10.1055/s-0039-1692630We performed this study to identify independent risk factors for life-threatening postoperative complications causing 30-day readmissions after total knee arthroplasty (TKA). Improved understanding of these risks may improve efficiency and safety of treatment. We performed a retrospective, nested case-control study using an open-access database of 2,622 patients who underwent primary TKA at a tertiary academic medical center in Singapore between January 2013 and June 2014. Patients were grouped according to the incidence of complications. Multivariate logistic analysis was performed t...
Source: Journal of Knee Surgery - July 29, 2019 Category: Orthopaedics Authors: Tang, Haozheng Li, Hui Zhang, Shutao Wang, You Qu, Xinhua Yue, Bing Tags: Original Article Source Type: research

Can Revision TKA Patients Achieve Similar Clinical Functional Improvement Compared to Primaries?
J Knee Surg DOI: 10.1055/s-0039-1693415The etiology of failure following primary total knee arthroplasty (TKA) leading to revision surgery are multifactorial, including infection, instability, loosening, contracture, and wear. Although the majority of patients have successful outcomes following revision TKA, postoperative complications are still increased in these patients when compared to primary patients. For this reason, there has been a continued search to identify options, including prosthesis types, to potentially improve outcomes. Therefore, the purpose of this study was to determine if the clinical results achieved...
Source: Journal of Knee Surgery - July 29, 2019 Category: Orthopaedics Authors: Sachdeva, Shikha Baker, James F. Bauwens, Jesse E. Smith, Langan S. Sodhi, Nipun Mont, Michael A. Malkani, Arthur L. Tags: Original Article Source Type: research

Lower Limb Malrotation Is Regularly Present in Long-Leg Radiographs Resulting in Significant Measurement Errors
In conclusion, malrotation of lower limbs is regularly present in long-leg radiographs. As all measured parameters are influenced by malrotation, correct lower limb rotation needs to be verified. [...] Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.Article in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: Journal of Knee Surgery)
Source: Journal of Knee Surgery - July 29, 2019 Category: Orthopaedics Authors: Maderbacher, G ünther Matussek, Jan Greimel, Felix Grifka, Joachim Schaumburger, Jens Baier, Clemens Keshmiri, Armin Tags: Original Article Source Type: research

Patella Height as Defined by Patella –Trochlear Articulation on MRI Scan—A Systemic Review of Current Evidence
The objective of this study is to investigate what are the normal values, cutoff values, and optimal method of magnetic resonance imaging (MRI) scan for patella height focusing on patella–trochlear index (PTI). Electronic searches of MEDLINE (PubMed), Cumulative Index to Nursing and Allied Health Literature, Cochrane, Embase, ScienceDirect, and National Institute for Health and Care Excellence evidence up to April 2018 were completed. Eligibility criteria for selected studies included case-controlled studies, prospective cohort studies, cross-sectional and randomized controlled trials reporting on the use of MRI to e...
Source: Journal of Knee Surgery - July 29, 2019 Category: Orthopaedics Authors: Bajada, Stefan Mandalia, Vipul Tags: Original Article Source Type: research

Which Patients Require a Contralateral Total Knee Arthroplasty Within 5 Years of Index Surgery?
This study aims to identify predictive factors for contralateral TKA in patients presenting with severe bilateral knee OA undergoing unilateral TKA. We prospectively collected perioperative data from 209 consecutive patients of a single surgeon who had severe bilateral OA knees at presentation. All patients underwent unilateral TKA on the more symptomatic knee. Patients were then stratified by their need for a contralateral TKA within the next 5 years. Using regression analysis, we compared patients who underwent contralateral knee surgery within 5 years (n = 115) against patients who did not (n =&thin...
Source: Journal of Knee Surgery - July 16, 2019 Category: Orthopaedics Authors: Mak, Wai Keong Bin Abd Razak, Hamid Rahmatullah Tan, Hwee-Chye Andrew Tags: Original Article Source Type: research

Outcomes in Patients with a Calipered Kinematically Aligned TKA That Already Had a Contralateral Mechanically Aligned TKA
J Knee Surg DOI: 10.1055/s-0039-1693000Prior studies suggest kinematically aligned (KA) total knee arthroplasty (TKA) provides some clinical benefits. There are no reports of self-reported outcome measures in patients treated with a calipered KA TKA that already had a contralateral mechanically aligned (MA) TKA. We performed a retrospective study and asked the following questions: (1) Were you satisfied with your MA TKA when you were treated with the KA TKA? (2) What are the Forgotten Joint Scores (FJS) and Oxford Knee Scores (OKS) in each of your knees? (3) Do you favor one knee? and (4) Did one knee recover faster? From ...
Source: Journal of Knee Surgery - July 9, 2019 Category: Orthopaedics Authors: Shelton, Trevor J. Gill, Manpreet Athwal, Gurbir Howell, Stephen M. Hull, Maury L. Tags: Original Article Source Type: research

Functional Outcomes of Revision Osteosynthesis after Failure of Surgical Treatment of Patellar Fractures
This study included 16 patients with a mean age of 51.8 years (range: 16–85 years) with a mean follow-up of 35.1 months. According to the AO/OTA classification, 15 patients had a C-type fracture, including 10 patients with C3 fracture. Thirteen patients were initially treated with tension band wiring via K-wires or cannulated screws. Revision surgery was performed because of persistent articular incongruity in five patients and secondary fracture dislocation or refracture in 11 patients. We analyzed pain (visual analog scale [0–10]), satisfaction, range of motion (ROM), Böstman's score, Lysholm's score, an...
Source: Journal of Knee Surgery - July 9, 2019 Category: Orthopaedics Authors: M üller, Elena Caroline Frosch, Karl-Heinz Tags: Original Article Source Type: research

Comparison of the Radiologic, Arthroscopic, and Clinical Outcomes between Repaired versus Unrepaired Medial Meniscus Posterior Horn Root Tear During Open Wedge High Tibial Osteotomy
This study compared the radiologic, arthroscopic, and clinical outcomes between repaired and unrepaired MMPHRT during OWHTO. Fifty-seven patients were prospectively enrolled from 2014 to 2016. The radiologic, arthroscopic, and clinical outcomes were compared between 25 patients who underwent OWHTO with all-inside repair of MMPRT using FasT-Fix (repaired group) and 32 patients who underwent OWHTO without repair of MMPRT (unrepaired group) with a mean 2-year follow up in both groups. The meniscal healing status was classified as complete, partial, or no healing, according to second-look arthroscopic findings. The medial meni...
Source: Journal of Knee Surgery - July 9, 2019 Category: Orthopaedics Authors: Lee, O-Sung Lee, Seung Hoon Lee, Yong Seuk Tags: Original Article Source Type: research

Arthroscopic versus Open Osteochondral Autograft Transplantation (Mosaicplasty) for Cartilage Damage of the Knee: A Systematic Review
J Knee Surg DOI: 10.1055/s-0039-1692999Osteochondral autograft transplantation (OAT) is a surgical option for repairing cartilage damage in knees, and can be performed using open or arthroscopic procedures. The aim of this review was to report clinical outcomes, postoperative complications, defect location, and defect size between open and arthroscopic OATs. Three electronic databases (EMBASE, PUBMED, and MEDLINE) were searched for relevant articles. In regard to eligibility criteria, knee articular damage cases solely treated with OAT were included and cases concomitant with ligament reconstruction, limb realignment, and ...
Source: Journal of Knee Surgery - July 9, 2019 Category: Orthopaedics Authors: Kizaki, Kazuha El-Khechen, Hussein Ali Yamashita, Fumiharu Duong, Andrew Simunovic, Nicole Musahl, Volker Ayeni, Olufemi R. Tags: Original Article Source Type: research

In-Hospital Complications following Arthrotomy versus Arthroscopy for Septic Knee Arthritis: A Cohort-Matched Comparison
J Knee Surg DOI: 10.1055/s-0039-1693450There is a paucity of literature comparing the relative merits of open arthrotomy versus arthroscopy for the surgical treatment of septic knee arthritis. The primary goal of this study is to compare the risk of perioperative complications between these two surgical techniques. To this end, 560 patients treated for septic arthritis of the native knee with arthroscopy were statistically matched 1:1 with 560 patients treated with open arthrotomy. The outcome measures included major complications, minor complications, mortality, inpatient hospital charges, and length of stay (LOS). Major ...
Source: Journal of Knee Surgery - July 9, 2019 Category: Orthopaedics Authors: Kerbel, Yehuda E. Lieber, Alexander M. Kirchner, Gregory J. Stump, Natalie N. Prodromo, John P. Petrucelli, Philip M. Shah, Mitesh P. Brahmabhatt, Shyam Tags: Original Article Source Type: research

Midterm Comparison of Tibial Fixation between Posterior Cruciate-retaining and Substituting Porous Tantalum Total Knee Arthroplasty: Three-dimensional Computed Tomography Analysis
This study reflects level II evidence. [...] Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.Article in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: Journal of Knee Surgery)
Source: Journal of Knee Surgery - July 9, 2019 Category: Orthopaedics Authors: Kaneko, Takao Kono, Norihiko Mochizuki, Yuta Hada, Masaru Toyoda, Shinya Ikegami, Hiroyasu Musha, Yoshiro Tags: Original Article Source Type: research

Characterization of Pulmonary Emboli in Total Joint Arthroplasty Patients Compared to General Medical Patients
J Knee Surg DOI: 10.1055/s-0039-1693417Pulmonary emboli (PEs) occur in medical and postoperative total joint arthroplasty (TJA) patients. These are different patient populations, yet both undergo identical diagnosis and treatment regardless of PEs size and quantity. To date, there has been no analysis of the location, size, and quantity of emboli that occur postoperatively in TJA compared with general medical patients. We hypothesized TJA patients would have different size and distribution of PEs per event compared with medical patients. A retrospective chart review was conducted of patients who underwent total hip or knee...
Source: Journal of Knee Surgery - July 9, 2019 Category: Orthopaedics Authors: Jov é, Nathaniel A. Samaan, Sam Pizzimenti, Natalie M. Lincoln, Denis Markel, David C. Tags: Original Article Source Type: research

Clinical Outcomes of Posterolateral Complex Reconstruction Performed with a Single Femoral Tunnel
The objective of this study is to report the functional outcomes, complications, and reconstruction failure rate of patients undergoing posterolateral complex reconstruction with a single femoral tunnel technique. Patients with posterolateral complex injuries associated with injury of the anterior cruciate ligament (ACL), posterior cruciate ligament (PCL), or both undergoing surgical treatment with the single femoral tunnel technique were included in the study. The International Knee Documentation Committee (IKDC) and Lysholm's scales were evaluated, in addition to age, gender, time between trauma and surgery, trauma type,...
Source: Journal of Knee Surgery - July 9, 2019 Category: Orthopaedics Authors: Helito, Camilo Partezani Sobrado, Marcel Faraco Giglio, Pedro Nogueira Bonadio, Marcelo Batista P écora, José Ricardo Gobbi, Riccardo Gomes Camanho, Gilberto Luis Angelini, Fabio Janson Tags: Original Article Source Type: research

A Novel Skin Closure Device for Total Knee Arthroplasty: Randomized Controlled Trial versus Staples
J Knee Surg DOI: 10.1055/s-0039-1692628Twenty-five patients undergoing simultaneous, bilateral total knee arthroplasty (TKA) were randomized to receive skin closure with Zip device on one knee and staples on the other. Patients' pain and scar appearance were rated from 0 (best) to 10 (worst). Knee arc of motion was measured by a physical therapist. At 2 weeks postoperatively, pain scores were significantly better with the Zip device during device wear (p = 0.03) and during device removal (p = 0.003); arc of motion was significantly better with the Zip device (p = 0.002). At 8 weeks...
Source: Journal of Knee Surgery - July 9, 2019 Category: Orthopaedics Authors: Benner, Rodney W. Behrens, Jonathan P. Tags: Original Article Source Type: research

Should We Prefer Magnetic Resonance Imaging to Physical Examination in Meniscal Tears
J Knee Surg DOI: 10.1055/s-0039-1693449The aim of this study was to compare the sensitivity, specificity, accuracy, positive and negative predictive values of magnetic resonance imaging (MRI), and clinical examination in the diagnosis of meniscus tears with the findings obtained from the knee joint arthroscopy. A retrospective study was made of 452 patients who underwent knee arthroscopy due to meniscus tears between 2012 and 2017. Physical examination was performed using the Thessaly's, McMurray's, and Joint line tenderness tests (JLTT). On preoperative MRI, medial meniscal tears were observed in 292 patients, lateral men...
Source: Journal of Knee Surgery - July 9, 2019 Category: Orthopaedics Authors: Ar ıcan, Gökhun Özmeriç, Ahmet Şahin, Özgür İltar, Serkan Alemdaro ğlu, Kadir Bahadır Tags: Original Article Source Type: research

No Difference in Recovery of Patient-Reported Outcome and Range of Motion between Cruciate Retaining and Posterior Stabilized Total Knee Arthroplasty: A Double-Blind Randomized Controlled Trial
J Knee Surg DOI: 10.1055/s-0039-1693023Both from the perspective of the individual and from a socioeconomic point of view (e.g., return to work), it is important to have an insight into the potential differences in recovery between posterior cruciate ligament retaining (PCR) and posterior stabilized (PS) total knee arthroplasty (TKA) implants. The primary aim of this study was to compare the speed of recovery of patient-reported outcome between patients with a PCR and PS TKA during the first postoperative year. The secondary aim was to compare the effect on range of motion (ROM). In a randomized, double-blind, controlled, ...
Source: Journal of Knee Surgery - July 8, 2019 Category: Orthopaedics Authors: van den Boom, Lennard G.H. Brouwer, Reinoud W. van den Akker-Scheek, Inge Reininga, Inge H.F. de Vries, Astrid J. Bierma-Zeinstra, Sita M.A. van Raay, Jos J.A.M. Tags: Original Article Source Type: research

Relationship between Body Mass Index and Articular Injuries Accompanying Primary Anterior Cruciate Ligament Tear in Male Knees: A Retrospective Observational Study
The objective of this study was to determine the effects of body mass index (BMI), as a modifiable risk factor, on meniscal, chondral, and ligamentous injuries, as well as on bone marrow edema accompanying anterior cruciate ligament (ACL) rupture. This retrospective observational study analyzed 84 male patients who underwent primary ACL reconstruction from 2015 to 2018. Magnetic resonance imaging was performed within 6 weeks of injury. Bone bruise, tendon, ligament, meniscal, and muscle injuries were evaluated. The surgery was performed within 3 months after the injury. Detailed arthroscopic findings (chondral, meniscal, a...
Source: Journal of Knee Surgery - July 8, 2019 Category: Orthopaedics Authors: Ulusoy, G ökhan Ragıp K ızılgöz, Volkan Sivrio ğlu, Ali Kemal Tags: Original Article Source Type: research

Technical Obstacles for Low-Volume Surgeons in Primary Anterior Cruciate Ligament Reconstruction
J Knee Surg DOI: 10.1055/s-0039-1692674A longer surgical time will lead to postoperative complications in orthopaedic surgery. According to previous reports, surgeon volume affects a surgical time in anterior cruciate ligament (ACL) reconstruction. However, little attention has been paid to difference of a surgical time between high- and low-volume surgeons in ACL reconstruction. The purpose of the present study was to investigate the surgical time for both high- and low-volume surgeons and to clarify technical obstacles as well as the important technique to reduce the surgical time in ACL reconstruction. A total of 103 kn...
Source: Journal of Knee Surgery - July 8, 2019 Category: Orthopaedics Authors: Harato, Kengo Kobayashi, Shu Toyoda, Takashi Hasegawa, Takayuki Tsukimura, Yasunori Niki, Yasuo Tags: Original Article Source Type: research

Preoperative Estimated Width of the Patellar Tendon for Anterior Cruciate Ligament Reconstruction
This study aims to compare the actual patellar tendon width with the skin and magnetic resonance imaging (MRI) measurements and to describe a more accurate method to predict the actual patellar tendon width before anterior cruciate ligament reconstruction (ACLR).Thirty-nine patients undergoing primary ACLR were identified. Patients with patellar tendon width of less than 30 mm by skin or MRI measurements were excluded from the study. The actual patellar tendon width was measured as an intraoperative reading taken after surgical exposure. Mean difference between the skin and actual measurement and mean difference bet...
Source: Journal of Knee Surgery - July 8, 2019 Category: Orthopaedics Authors: Gupta, Sunny Bartolozzi, Arthur R. Miller, Lawrence Morgan, Craig Anyangwe, Victor Cavinatto, Leonardo Tags: Original Article Source Type: research

Individual Coping Strategies Are Associated with Patient-Reported Satisfaction upon Completion of Rehabilitation following Sports-Related Knee Surgery
J Knee Surg DOI: 10.1055/s-0039-1693416We sought to determine whether individual coping strategies and optimism are associated with satisfaction after sports-related knee surgery at the time of rehabilitation completion and whether the association between coping strategies/optimism and satisfaction varies by surgical procedure or length of rehabilitation. A total of 104 recreational and competitive athletes who underwent knee surgery completed preoperative assessments for intrinsic optimism using the revised Life Orientation Test and coping strategies using the brief Coping Orientations to the Problem Experience inventory....
Source: Journal of Knee Surgery - July 8, 2019 Category: Orthopaedics Authors: Everhart, Joshua S. Harris, Kristie M. Schiele, Steven E. Abouljoud, Moneer Eikenberry, Alexander Emery, Charles F. Flanigan, David C. Tags: Original Article Source Type: research

Outcome Expectations of Total Knee Arthroplasty Patients: The Influence of Demographic Factors, Pain, Personality Traits, Physical and Psychological Status
J Knee Surg DOI: 10.1055/s-0039-1692632Unfulfilled preoperative expectations have a strong influence on the outcome after total knee arthroplasty (TKA). More insight into determinants of the level of expectations is useful in identifying patients at risk for having expectations of the treatment result that are too high or too low. This information can be used in optimizing preoperative expectation management. The aim of the current study was to analyze to what extent preoperative outcome expectations of TKA patients are affected by psychological factors, demographic factors, pain, physical function, and general health stat...
Source: Journal of Knee Surgery - July 4, 2019 Category: Orthopaedics Authors: Tolk, Jaap J. Janssen, Rob P.A. Haanstra, Tsjitske M. van der Steen, Marieke M C. Bierma Zeinstra, Sita M.A. Reijman, M. Tags: Original Article Source Type: research

Satisfaction Rates Are Low following Revision Total Knee Arthroplasty in Asians Despite Improvements in Patient-Reported Outcome Measures
J Knee Surg DOI: 10.1055/s-0039-1692629With the aging population in Asia and increase in total knee arthroplasty (TKA) utilization rates, the number of patients requiring revision TKA (rTKA) are expected to increase as well. The purpose of this study was to evaluate outcomes and satisfaction rates following rTKA in an Asian population that has unique cultural demands. Registry data of patients who underwent rTKA from 2006 to 2010 and had completed 5 years of follow-up were analyzed. Flexion range, Oxford Knee score (OKS), Knee Society score (KSS), the Short-Form 36 (SF-36), and satisfaction rates were assessed for improvem...
Source: Journal of Knee Surgery - July 4, 2019 Category: Orthopaedics Authors: Bin Abd Razak, Hamid Rahmatullah Lee, Jian Hui Merrill Tan, Shi Ming Chong, Hwei Chi Lo, Ngai Nung Yeo, Seng Jin Tags: Original Article Source Type: research

Unicompartmental Knee Replacement Combined to Anterior Cruciate Ligament Reconstruction: Midterm Results
J Knee Surg DOI: 10.1055/s-0039-1692647A study was conducted to retrospectively evaluate the outcomes of combined medial unicompartmental knee replacement (UKR) and anterior cruciate ligament (ACL) reconstruction. The hypothesis was that this procedure would lead to satisfying results in patients affected by medial osteoarthritis and ACL insufficiency. Fourteen patients with ACL deficiency and concomitant medial compartment symptomatic osteoarthritis were treated from 2006 to 2010. Twelve of them were followed-up for an average time of 7.8 year (range: 6–10 years). Assessment included Knee Osteoarthritis Outco...
Source: Journal of Knee Surgery - July 3, 2019 Category: Orthopaedics Authors: Ventura, Alberto Legnani, Claudio Terzaghi, Clara Macchi, Vittorio Borgo, Enrico Tags: Original Article Source Type: research

Independent Suture Tape Internal Brace Reinforcement of Bone –Patellar Tendon–Bone Allografts: Biomechanical Assessment in a Full-ACL Reconstruction Laboratory Model
J Knee Surg DOI: 10.1055/s-0039-1692649Internal bracing for anterior cruciate ligament (ACL) surgery is a relatively new concept. The purpose of this study was to evaluate the effects of an “independent” button-fixed internal brace on the biomechanical properties of ACL reconstruction in a full-construct experimental model. Three groups (n = 10 each) were tested in a full-construct porcine-bone model with human bone–patellar tendon–bone allografts using different reconstruction techniques: interference screw fixation on femur and tibia (S-S group), adjustable-loop device (ALD) fixation...
Source: Journal of Knee Surgery - July 3, 2019 Category: Orthopaedics Authors: Smith, Patrick A. Bradley, James P. Konicek, John Bley, Jordan A. Wijdicks, Coen A. Tags: Original Article Source Type: research

Femoral Component Malrotation Produces Quadriceps Weakness and Impaired Ambulatory Function following Total Knee Arthroplasty: Results of a Forward-Dynamic Computer Model
In conclusion, internal malrotation of the femoral component during TKA produces a mechanically disadvantaged state which is characterized by greater required quadriceps forces (especially the vastus lateralis) and greater quadriceps work to support normal ambulation. [...] Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.Article in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: Journal of Knee Surgery)
Source: Journal of Knee Surgery - July 3, 2019 Category: Orthopaedics Authors: Nettrour, John F. Razu, Swithin S. Keeney, James A. Guess, Trent M. Tags: Original Article Source Type: research

Midterm Results after Implant-Free Patellar Fixation Technique for Medial Patellofemoral Ligament Reconstruction
J Knee Surg DOI: 10.1055/s-0039-1692654Problems and complications concerning the patellar fixation in medial patellofemoral ligament reconstruction (MPFLR) have been reported. The purpose of this retrospective study was to systematically analyze the surgical technique for MPFLR with a V-shaped patellar bonetunnel for implant-free fixation of an autologous gracilis tendon, allowing early functional rehabilitation, regarding restoration of the patellofemoral stability, patient satisfaction, return to sports, and technique-specific complications. In 2010, 128 cases of consecutive isolated MPFLR were performed. All these cases...
Source: Journal of Knee Surgery - July 3, 2019 Category: Orthopaedics Authors: Mayer, Philipp Schuster, Philipp Schlumberger, Michael Eichinger, Martin Pfaff, Michael Immend örfer, Micha Richter, J örg Tags: Original Article Source Type: research

Planning on CT-Based 3D Virtual Models Can Accurately Predict the Component Size for Total Knee Arthroplasty
This study reflects a study of level III evidence. [...] Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.Article in Thieme eJournals: Table of contents  |  Abstract  |  Full text (Source: Journal of Knee Surgery)
Source: Journal of Knee Surgery - July 3, 2019 Category: Orthopaedics Authors: Le ón-Muñoz, Vicente J. Lis ón-Almagro, Alonso J. L ópez-López, Mirian Tags: Original Article Source Type: research

Early Postoperative Pain Predicts 2-Year Functional Outcomes Following Knee Arthroplasty
J Knee Surg DOI: 10.1055/s-0039-1692650Pain control following knee arthroplasty is extremely important to both patients and surgeons to improve the perioperative experience; however, the implication of early pain control on long-term outcomes following knee arthroplasty remains poorly understood. We hypothesized that poor early pain control results in poor functional outcomes 2 years following total (TKA) and unicondylar knee arthroplasty (UKA). This retrospective study reviewed 242 TKA and 162 UKA performed at a single institution by two surgeons. Mean visual analog scale (VAS) pain scores were collected for first 3 posto...
Source: Journal of Knee Surgery - July 3, 2019 Category: Orthopaedics Authors: Lakra, Akshay Murtaugh, Taylor Shah, Roshan P. Cooper, H. John Geller, Jeffrey A. Tags: Original Article Source Type: research

Risk Factors for 30-Day Readmission Following Knee Arthroscopy
This study evaluates knee arthroscopy cases in a national surgical database to identify risk factors associated with readmission. The American College of Surgeons National Surgical Quality Improvement Program database was queried from 2012 to 2016 for billing codes related to knee arthroscopy. International Classification of Diseases diagnostic codes were then used to exclude cases which involved infection. Patients were subsequently reviewed for readmission within 30 days. Univariate and multivariate analyses were then performed to identify risk factors associated with 30-day readmission. A total of 69,022 patients underw...
Source: Journal of Knee Surgery - July 3, 2019 Category: Orthopaedics Authors: Hartwell, Matthew J. Morgan, Allison M. Johnson, Daniel J. Nicolay, Richard W. Christian, Robert A. Selley, Ryan S. Terry, Michael A. Tjong, Vehniah K. Tags: Original Article Source Type: research

Hamstring Anterior Cruciate Ligament Reconstruction Using an Adjustable-Loop Cortical Suspension Device: Immediate Postoperative Magnetic Resonance Imaging
J Knee Surg DOI: 10.1055/s-0039-1692648The purpose of this study is to determine whether the hamstring grafts are fully inserted into the femoral tunnel with the adjustable loop using immediate postoperative magnetic resonance imaging (MRI) after anterior cruciate ligament (ACL) reconstructions. A total of 62 consecutive patients underwent hamstring ACL reconstruction using an adjustable-loop cortical suspension device for the femoral fixation and the Intrafix sheath and screw for the tibial fixation. Multiplanar reformatted images of 3-T MRI scans were obtained at the 1st postoperative day before weight bearing is initiat...
Source: Journal of Knee Surgery - July 3, 2019 Category: Orthopaedics Authors: Choi, Nam-Hong Lee, Seung-Joo Oh, Whang-Kyun Victoroff, Brian N. Tags: Original Article Source Type: research

Current Controversies in Total Knee Arthroplasty —Part 1
J Knee Surg 2019; 32: 589-589 DOI: 10.1055/s-0039-1692393 Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.Article in Thieme eJournals: Table of contents  |  Full text (Source: Journal of Knee Surgery)
Source: Journal of Knee Surgery - July 2, 2019 Category: Orthopaedics Authors: Friedman, Richard J. Tags: Special Focus Section Source Type: research

Perioperative Complications in Patients with Rheumatoid Arthritis Following Primary Total Knee Arthroplasty: An Analysis of 102,898 Patients
J Knee Surg DOI: 10.1055/s-0039-1692397There are conflicting results regarding the impact of rheumatoid arthritis (RA) on total knee arthroplasty (TKA) outcomes. Therefore, the purpose of this study was to compare outcomes of patients with and without RA undergoing primary TKA. Specifically, we assessed (1) 90-day medical complications, (2) 90-day readmission rates, (3) short-term implant-related complications, (4) 1-year mortality, and (5) total global 90-day episode-of-care costs. The authors of the study hypothesize that RA would increase the rate of medical- and implant-related complications, readmission rates, and cos...
Source: Journal of Knee Surgery - June 17, 2019 Category: Orthopaedics Authors: Vakharia, Ajit M. Cohen-Levy, Wayne B. Vakharia, Rushabh M. Sodhi, Nipun Mont, Michael A. Roche, Martin W. Tags: Special Focus Section Source Type: research

Erratum to: Patellar Height Is Not Altered When the Knee Axis Correction Is Less than 15 Degrees and Has Good Short-Term Clinical Outcome
J Knee Surg DOI: 10.1055/s-0039-1691750 Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.Article in Thieme eJournals: Table of contents  |  Full text (Source: Journal of Knee Surgery)
Source: Journal of Knee Surgery - May 30, 2019 Category: Orthopaedics Authors: Jingbo, Cheng Mingli, Feng Guanglei, Cao Zheng, Li Shuai, An Jiang, Huang Tags: Erratum Source Type: research

The Outcomes of Isolated Lateral Release in Patellofemoral Instability: A Systematic Review and Meta-Analysis
J Knee Surg DOI: 10.1055/s-0039-1688961There have been conflicting reports regarding the outcomes of lateral release when used in the management of patellofemoral instability. This systematic review and meta-analysis therefore aims to evaluate the outcomes of isolated lateral release in the management of patellofemoral instability. The review was conducted using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. All studies that reported the outcomes of isolated lateral release for recurrent patellofemoral dislocations were included. A total of 10 publications were included, with 20...
Source: Journal of Knee Surgery - May 25, 2019 Category: Orthopaedics Authors: Tan, Si Heng Sharon Chua, Chen Xi Kasia Doshi, Chintan Wong, Keng Lin Lim, Andrew Kean Seng Hui, James Hoipo Tags: Original Article Source Type: research

A Novel Method of the Treatment for Posterolateral Tibial Plateau Fractures
J Knee Surg DOI: 10.1055/s-0039-1688918Reduction and fixation of posterolateral tibial plateau fracture via a posterolateral approach is challenging, and the posterolateral approach itself may injure the posterolateral ligament complex of the knee and can result in knee instability. We developed a new curved support plate (CSP) that can pass, via traditional anterolateral approach, through the superior tibiofibular interval and effectively support the posterolateral fragments. The purpose of our study was to determine the biomechanical reliability of the new plate and report the preliminary efficacy of the CSP for posterol...
Source: Journal of Knee Surgery - May 24, 2019 Category: Orthopaedics Authors: Ren, Dong Liu, Yueju Chen, Yanxi Lu, Jian Song, Zhaohui Zhou, Bing Wang, Pengcheng Tags: Original Article Source Type: research

Ten-Year Average Full Follow-up and Evaluation of a Contoured Focal Resurface Prosthesis (HemiCAP) in Patients in the United Kingdom
J Knee Surg DOI: 10.1055/s-0039-1688921A significant number of patients are affected by localized articular damage that is appropriate neither for traditional arthroplasty nor for biological repair. A focal resurfacing system using a matched contoured articular prosthetic (HemiCAP) has been introduced for the treatment of such cases. Independent long-term results of these implants are limited. We retrospectively evaluated the use of this resurfacing system in 14 patients (13 males, 1 female), with a mean age of 40.3 years (range: 28–49), with focal femoral condyle defects. The same consultant orthopaedic surgeon perf...
Source: Journal of Knee Surgery - May 24, 2019 Category: Orthopaedics Authors: Nahas, Sam Monem, Mohammed Li, Lily Patel, Akash Parmar, Harish Tags: Original Article Source Type: research

Venous Thromboembolic Events after Total Knee Arthroplasty: Which Patients Are at a High Risk?
J Knee Surg DOI: 10.1055/s-0039-1688962Venous thromboembolism (VTE; deep venous thrombosis and pulmonary embolism) is a known complication following primary total knee arthroplasty (TKA). The aim of this study was to investigate the trends of the incidence of VTE after primary TKA and identify associated risk factors for the occurrence of VTEs in a large cohort of TKA patients. We performed a retrospective study in which the Nationwide Inpatient Sample (NIS) database was used to identify all patients who underwent primary TKA over a period of 13 consecutive years (between 2002 and 2014) in the United States. The occurrence...
Source: Journal of Knee Surgery - May 24, 2019 Category: Orthopaedics Authors: Dai, Wen-Li Lin, Ze-Ming Shi, Zhan-Jun Wang, Jian Tags: Original Article Source Type: research