Efficacy of β-Tricalcium Phosphate Graft into the Bone Defects after Bone-Patellar Tendon-Bone Anterior Cruciate Ligament Reconstruction
J Knee Surg DOI: 10.1055/s-0036-1593364This prospective pilot study investigated whether grafting β-tricalcium phosphate (B-TCP) into the bone-patellar tendon-bone (BPTB)-harvesting site after anterior cruciate ligament reconstruction would accelerate bone and tendon regeneration in the grafted site. Overall, 19 patients agreed prospectively to undergo regular morphological and histological examinations of the B-TCP-grafted site. Postoperative radiographic, ultrasonographic, and magnetic resonance imaging (MRI) examinations were performed to evaluate the grafted site at 1, 3, 6, and 12 months. Postoperative knee funct...
Source: Journal of Knee Surgery - September 28, 2016 Category: Orthopaedics Authors: Higuchi, Hiroshi Kobayashi, Atsushi Ikeda, Keiko Hatayama, Kazuhisa Yanagisawa, Sinya Kato, Kazuo Tags: Original Article Source Type: research

Tibiofemoral Osteoarthritis and Varus –Valgus Laxity
J Knee Surg DOI: 10.1055/s-0036-1592149The purpose of this study was to systematically review and synthesize the literature measuring varus–valgus laxity in individuals with tibiofemoral osteoarthritis (OA). Specifically, we aimed to identify varus–valgus laxity differences between persons with OA and controls, by radiographic disease severity, by frontal plane knee alignment, and by sex. We also aimed to identify if there was a relationship between varus–valgus laxity and clinical performance and self-reported function. We systematically searched for peer-reviewed original research articles in PubMed, Sc...
Source: Journal of Knee Surgery - September 28, 2016 Category: Orthopaedics Authors: Freisinger, Gregory M. Schmitt, Laura C. Wanamaker, Andrea B. Siston, Robert A. Chaudhari, Ajit M. W. Tags: Original Article Source Type: research

Clinical Efficacy of an Arthroscopic Surgery in Open Wedge High Tibial Osteotomy
J Knee Surg DOI: 10.1055/s-0036-1592146Few studies have identified the effects of arthroscopic surgery on the clinical outcomes when open wedge high tibial osteotomy (OWHTO) and arthroscopic surgery were performed together. The purpose of this study was to evaluate the clinical efficacy of arthroscopic surgery in patients who had varus osteoarthritic knee and were treated with OWHTO combined with arthroscopic surgery. Among the 98 knees (88 patients) who underwent OWHTO between January 2008 and March 2013, 79 knees (71 patients) with more than 2 years of follow-up were reviewed retrospectively. The patients were divided in...
Source: Journal of Knee Surgery - September 21, 2016 Category: Orthopaedics Authors: Kim, Chang-Wan Lee, Chang-Rack Seo, Seung-Suk Gwak, Heui-Chul Kim, Jung-Han Jeong, Jun-Woo Tags: Original Article Source Type: research

Blood Loss in Total Knee Arthroplasty
J Knee Surg DOI: 10.1055/s-0036-1592147Patients undergoing total knee arthroplasty (TKA) have expected blood loss during and after surgery. The morbidity associated with blood loss and the burden of blood transfusions in adult arthroplasty necessitates preoperative optimization as routine practice. Current literature remains inconclusive on which TKA surgical instrumentation techniques are effective in minimizing perioperative blood loss, and consequently lower transfusion rates. The primary objective of this retrospective review, of a prospective randomized cohort study, was to compare surgical and patient factors, and th...
Source: Journal of Knee Surgery - September 21, 2016 Category: Orthopaedics Authors: Cundy, William J. Theodoulou, Annika Ling, Chi Meng Krishnan, Jeganath Wilson, Christopher J. Tags: Original Article Source Type: research

Innovative Multimodal Physical Therapy Reduces Incidence of Repeat Manipulation under Anesthesia in Post –Total Knee Arthroplasty Patients Who Had an Initial Manipulation under Anesthesia
J Knee Surg DOI: 10.1055/s-0036-1592339Manipulation under anesthesia (MUA) is performed for knee stiffness following a total knee arthroplasty (TKA) when nonoperative treatments fail. It is important to develop an optimal outpatient physical therapy protocol following an MUA, to avoid a repeat procedure. The purpose of this study was to evaluate and compare: (1) range of motion and (2) the rate of repeat MUA in patients who either underwent innovative multimodal physical therapy (IMMPT) or standard-of-care physical therapy (standard) following an MUA after a TKA. We performed a retrospective database study of patients who ...
Source: Journal of Knee Surgery - September 21, 2016 Category: Orthopaedics Authors: Chughtai, Morad McGinn, Tanner Bhave, Anil Khan, Sabahat Vashist, Megha Khlopas, Anton Mont, Michael A. Tags: Original Article Source Type: research

Tantalum Cones in Revision Total Knee Arthroplasty
J Knee Surg DOI: 10.1055/s-0036-1593370The best strategy to address large bony defects in revision total knee arthroplasty has yet to be determined. The relatively recent development of porous tantalum cones and their use to address massive bone loss in knee arthroplasty has shown promising short- and intermediate-term results. The purpose of this review is to present the current literature on: (1) basic science of porous tantalum, (2) classification and treatment for bone loss, (3) clinical results, and (4) evolution of newer generation cones. [...] Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.Art...
Source: Journal of Knee Surgery - September 20, 2016 Category: Orthopaedics Authors: Kim, Eric G. Patel, Nirav K. Chughtai, Morad Elmallah, Randa D. K. Delanois, Ronald E. Harwin, Steven F. Mont, Michael A. Tags: Special Focus Section Source Type: research

Does Anterior Cruciate Ligament Innervation Matter for Joint Function and Development of Osteoarthritis?
J Knee Surg DOI: 10.1055/s-0036-1592145Complications following anterior cruciate ligament (ACL) injury and reconstruction that include chronic dysfunction, second ACL injury, and posttraumatic osteoarthritis (OA) may be interrelated and stem from the inability to fully restore native ACL integrity and function. The loss of ACL sensory input following injury may significantly contribute to joint dysfunction. We developed a novel preclinical animal model to assess the contributions of ACL sensory afferents to knee joint function and health. We hypothesized that ACL sensory denervation would manifest in knee joint dysfunction...
Source: Journal of Knee Surgery - September 20, 2016 Category: Orthopaedics Authors: Nagelli, Christopher V. Cook, James L. Kuroki, Kei Bozynski, Chantelle Ma, Richard Hewett, Timothy E. Tags: Original Article Source Type: research

Hot Topics in the Multicenter Orthopedics Outcomes Network: Anterior Cruciate Ligament
J Knee Surg DOI: 10.1055/s-0036-1593341Since 2015, the Multicenter Orthopedic Outcomes Network (MOON) has addressed several factors associated with patient outcome after anterior cruciate ligament (ACL) injury. These factors include predictors of high grade knee laxity, the impact of meniscus treatment on joint space narrowing after surgery, graft selection, treating diabetic patients, predictors of clinically significant pain, and outcomes of patients where meniscus tears were left in situ without treatment. The presence of meniscus tears and generalized laxity predict a lax examination under anesthesia prior to surgery. ...
Source: Journal of Knee Surgery - September 19, 2016 Category: Orthopaedics Authors: Westermann, Robert W. Lynch, Thomas Sean Spindler, Kurt P. Tags: Special Focus Section Source Type: research

Impact of Axial Component Alignment in Total Knee Arthroplasty on Lower Limb Rotational Alignment: An In Vitro Study
J Knee Surg DOI: 10.1055/s-0036-1592148Correct rotational implant alignment is associated with increased postoperative function and implant survival in total knee arthroplasty (TKA). Due to conformity between tibial and femoral implants, particularly in full extension, we assumed a mutual interference of femoral and tibial component rotations. We, therefore, hypothesized that different rotational alignments of the tibial or femoral components change the rotational postures between the tibia and femur after TKA. In 10 healthy knees of whole body cadavers, TKA was performed. Both femoral and tibial components were implanted ...
Source: Journal of Knee Surgery - September 19, 2016 Category: Orthopaedics Authors: Maderbacher, Guenther Baier, Clemens Springorum, Hans-Robert Maderbacher, Hermann Birkenbach, Anne-Maria Benditz, Achim Grifka, Joachim Keshmiri, Armin Tags: Original Article Source Type: research

Erratum: Comparison between Closing-Wedge and Opening-Wedge High Tibial Osteotomy in Patients with Medial Knee Osteoarthritis: A Systematic Review and Meta-analysis
J Knee Surg DOI: 10.1055/s-0036-1592408 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 - September 16, 2016 Category: Orthopaedics Authors: Sun, Hao Zhou, Lin Li, Fengsheng Duan, Jun Tags: Erratum Source Type: research

Erratum: Biomechanical Comparison: Single-Bundle versus Double-Bundle Posterior Cruciate Ligament Reconstruction Techniques
J Knee Surg DOI: 10.1055/s-0036-1592409 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 - September 16, 2016 Category: Orthopaedics Authors: Milles, Jeffrey L. Nuelle, Clayton W. Pfeiffer, Ferris Stannard, James P. Smith, Patrick Kfuri, Mauricio Cook, James L. Tags: Erratum Source Type: research

Utilization of Osseous Landmarks for Anatomic Anterior Cruciate Ligament Femoral Tunnel Placement
This study was a retrospective case series. We reviewed 83 consecutive ACL reconstructions performed by a single surgeon. The lateral intercondylar ridge and lateral bifurcate ridge were referenced intraoperatively for anatomic placement of the ACL femoral tunnel during single-bundle reconstruction. Using these landmarks, the femoral tunnel was placed in the center of the anteromedial bundle footprint on the lateral wall of the intercondylar notch. We reviewed all operative notes and intraoperative arthroscopic images to assess tunnel placement. Postoperative anteroposterior and lateral radiographs were obtained in all pat...
Source: Journal of Knee Surgery - September 14, 2016 Category: Orthopaedics Authors: Rowan, Flynn Andrew Marshall, Tyler Gombosh, Michael R. Farrow, Lutul Dashaun Tags: Original Article Source Type: research

Surgical versus Nonsurgical Treatments of Acute Primary Patellar Dislocation with Special Emphasis on the MPFL Injury Patterns
In this study, 62 patients with an acute patellar dislocation and a concurrent MPFL injury in the nonoverlap region were randomly divided into two groups based on their birth years (even vs. odd years) and received either surgical or nonsurgical treatment. Of the 62 eligible patients, 30 were in the nonsurgical treatment group (Group 1) and 32 were in the surgical group (Group 2). Patellar stability tests and the Kujala knee questionnaire were performed, and radiographs were evaluated for patellar tilt and the lateral shift ratio by two blinded investigators. An osteochondral injury was noted in six (23.1%) patients from G...
Source: Journal of Knee Surgery - September 14, 2016 Category: Orthopaedics Authors: Ji, Gang Wang, Shengjie Wang, Xiaomeng Liu, Junhang Niu, Jinghui Wang, Fei Tags: Original Article Source Type: research

Biomechanical Comparison: Single-Bundle versus Double-Bundle Posterior Cruciate Ligament Reconstruction Techniques
J Knee Surg DOI: 10.1055/s-0036-1588014 Objective Controversy exists regarding double-bundle (DB) versus single-bundle (SB) posterior cruciate ligament (PCL) reconstruction, with differences in multiple variables affecting biomechanical and clinical results. Our objective was to compare immediate postimplantation biomechanics of SB versus DB reconstructions to determine the relative importance of restoring both PCL bundles versus total graft volume. Methods Twenty knees were randomly assigned to five techniques (n = 4 knees/technique), performed by three surgeons experienced in their technique...
Source: Journal of Knee Surgery - August 20, 2016 Category: Orthopaedics Authors: Milles, Jeffrey L. Nuelle, Clayton W. Pfeiffer, Ferris Stannard, James P. Smith, Patrick Kfuri, Mauricio Cook, James L. Tags: Original Article Source Type: research

Research in Osteochondritis Dissecans of the Knee: 2016 Update
This article will review our current understanding of the pathophysiology, treatment options, and outcomes of OCD of the knee, with a focus on the past, present, and future research including the work of the ROCK study group. [...] 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 17, 2016 Category: Orthopaedics Authors: Nepple, Jeffrey J. Milewski, Matthew D. Shea, Kevin G. Tags: Special Focus Section Source Type: research

Repair of Acute Patellar Tendon Rupture Augmented with Strong Sutures
J Knee Surg DOI: 10.1055/s-0036-1586725Rupture of the patellar tendon is an uncommon injury that requires acute surgical repair to restore the function of the knee. Multiple techniques for repair have been described in the literature. Complications with these repair techniques include rerupture and extensor lag caused by gap formation at the site of repair. Thus, many surgeons have suggested augmenting the standard repair. Several methods of augmentation have been described each with disadvantages. The purpose of this article was to present our case series of six patients with acute patella tendon ruptures treated by a nov...
Source: Journal of Knee Surgery - August 16, 2016 Category: Orthopaedics Authors: Otsubo, Hidenori Kamiya, Tomoaki Suzuki, Tomoyuki Kuroda, Miki Ikeda, Yasutoshi Matsumura, Takashi Yamashita, Toshihiko Tags: Original Article Source Type: research

Causes of Total Knee Revision in Emerging Economies: Is It Different from the Western World?
J Knee Surg DOI: 10.1055/s-0036-1586724There is limited information in English literature regarding the cause of revision total knee arthroplasty (TKA) in emerging economies. The purpose of this study is to report a detailed analysis of the TKA failure mechanisms from a referral hospital in India and to determine whether the failure mechanisms of primary TKA are different from that of the western world. A total of 53 revision TKAs performed at our institution over the past 5 years were identified. The revision TKA group was divided into subgroups according to the cause of failure, including infection, aseptic loosening, pe...
Source: Journal of Knee Surgery - August 16, 2016 Category: Orthopaedics Authors: Khan, Prince Shanavas Thilak, Jai Tags: Original Article Source Type: research

The Development and Early to Midterm Findings of the Multicenter Revision Anterior Cruciate Ligament Study
J Knee SurgDOI: 10.1055/s-0036-1584921Revision anterior cruciate ligament (ACL) reconstruction can present a series of unique challenges for the both the patient and the treating surgeon. The Multicenter ACL Revision Study (MARS) was established to identify the factors contributing to ACL graft failure and report on the outcomes following revision reconstruction. In this article we review the development and early to midterm findings of the MARS group.[...]Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.Article in Thieme eJournals:Table of contents  |  Abstract  | &n...
Source: Journal of Knee Surgery - July 25, 2016 Category: Orthopaedics Tags: Special Focus Section Source Type: research

An Innovative Intra-articular Osteotomy in the Treatment of Posterolateral Tibial Plateau Fracture Malunion
J Knee SurgDOI: 10.1055/s-0036-1584922Posterolateral tibial plateau fractures are not uncommon and the diagnosis can be easily missed. The treatment is technically demanding, which can easily lead to malunion of the posterolateral tibial plateau fracture. Here, we describe an innovative intra-articular osteotomy for the treatment of posterolateral tibial plateau fracture malunion. From 2010 through 2012, 13 patients with a posterolateral tibial plateau fracture malunion were treated in our trauma center. The patients were referred because of instability or knee pain. The instability was confirmed by physical examinations p...
Source: Journal of Knee Surgery - July 13, 2016 Category: Orthopaedics Authors: Wang, YukaiLuo, CongfengHu, ChengfangSun, HuiZhan, Yu Tags: Original Article Source Type: research

The Effect of Synovectomy in Total Knee Arthroplasty for Primary Osteoarthritis: A Meta-Analysis
The objective of this study is to assess pain, function, and morbidity in patients undergoing synovectomy during primary total knee arthroplasty (TKA) for osteoarthritis (OA). A meta-analysis, which included randomized controlled trials comparing TKA with and without synovectomy for OA, was completed. The primary outcome was postoperative knee pain. Secondary outcomes included performance, perioperative complications, validated functional scores, operation length, and hospitalization length. A literature search produced 487 unique references, of which 3 randomized controlled trials were selected for inclusion. A total of 3...
Source: Journal of Knee Surgery - July 5, 2016 Category: Orthopaedics Authors: Kooner, Sahil SinghClark, Marcia Tags: Original Article Source Type: research

Intraobserver and Interobserver Agreement of Magnetic Resonance Imaging for Reparability of Peripheral Meniscal Tears: What Criteria Really Matter?
The objective of the study was the determination of the intra- and interobserver agreement of three magnetic resonance imaging (MRI) criteria for reparability: a peripheral rim smaller than 4 mm, a tear longer than 10 mm, and homogenous aspect of meniscal tissue. In two rounds with an interval of at least 6 weeks, three orthopedic surgeons and three musculoskeletal radiologists studied the preoperative MRI scans of 63 patients with a longitudinal full-thickness medial or lateral meniscal tear. All patients had an arthroscopic meniscal repair. The blinded images were evaluated measuring the tear length and rim...
Source: Journal of Knee Surgery - July 1, 2016 Category: Orthopaedics Authors: Van der Wal, Robert J. P.Ottevanger, Jaap W.de Rooij, Theo P. W.Thomassen, Bregje J. W.Van Arkel, Ewoud R. A. Tags: Original Article Source Type: research

Infections after Anterior Cruciate Ligament Reconstruction: Which Antibiotic after Arthroscopic Debridement?
J Knee SurgDOI: 10.1055/s-0036-1584559Arthroscopic debridement has proven to be the optimal surgical treatment for infections of the anterior cruciate ligament reconstruction (ACLR). Nevertheless, there are no reported data for the best antibiotic treatment option and its duration. The purpose of this article is to assess the usefulness of oral levofloxacin and rifampicin for the treatment of acute infections of an ACLR. This is a retrospective observational cohort study of patients operated on for ACLR over 4 years. A diagnosis of septic arthritis was based on patients' anamnesis and physical examination, laboratory param...
Source: Journal of Knee Surgery - July 1, 2016 Category: Orthopaedics Authors: Pérez-Prieto, DanielTrampuz, AndrejTorres-Claramunt, RaúlEugenia Portillo, MaríaPuig-Verdié, LluísMonllau, Joan C. Tags: Original Article Source Type: research

The Varus Osteoarthritic Knee Has No Coronal Contractures in 90 Degrees of Flexion
J Knee SurgDOI: 10.1055/s-0036-1584539Medial and lateral coronal soft tissue laxity in 90 degrees of flexion in the varus osteoarthritic (OA) knee at the time of total knee arthroplasty (TKA) is unknown, meaning, key information as to how the flexion gap should be addressed by surgery is not available. The purpose of this study was to define the coronal plane medial and lateral laxity in 90 degrees of flexion in the end-stage OA knee. Computer assisted surgery (CAS) displays and direct joint observations were used to manipulate the knee to its neutral position in 90 degrees of flexion prior to any surgical releases. Laxity...
Source: Journal of Knee Surgery - July 1, 2016 Category: Orthopaedics Authors: McAuliffe, Michael J.Roe, JohnGarg, GautamWhitehouse, Sarah L.Crawford, Ross Tags: Original Article Source Type: research

Team Physician Symposium
J Knee Surg 2016; 29: 355-355DOI: 10.1055/s-0036-1584518Thieme 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 1, 2016 Category: Orthopaedics Authors: Smith, Patrick A. Tags: Foreword Source Type: research

Translation and Validation of the Dutch Western Ontario Meniscal Evaluation Tool
J Knee SurgDOI: 10.1055/s-0036-1584576The aim of this study was to translate the Western Ontario Meniscal Evaluation Tool (WOMET) into Dutch, to evaluate the content validity, construct validity, reliability, and responsiveness, and to determine the minimal important change (MIC) of the Dutch version. The WOMET was translated into Dutch according to a standardized forward-backward translation protocol. A total of 86 patients (51 males, 35 females, median age 52 years [interquartile range, 43–60 years]) with isolated meniscal pathology were included. The WOMET was completed three times; at baseline, around 2 weeks, an...
Source: Journal of Knee Surgery - June 30, 2016 Category: Orthopaedics Authors: van der Wal, Robert J. P.Heemskerk, Bastiaan T. J.van Arkel, Ewoud R. A.Mokkink, Lidwine B.Thomassen, Bregje J. W. Tags: Original Article Source Type: research

Autograft Choice in Young Female Patients: Patella Tendon versus Hamstring
This study aimed to evaluate patient-reported outcomes, objective knee stability, complication rates, and the incidence of failure after ACL reconstruction using bone–patellar tendon–bone (BPTB) autograft compared with hamstring (HS) autograft in young female patients. Female patients who underwent primary ACL reconstruction with BPTB or HS autograft between ages 15 and 25 years were identified. Medical records were reviewed for postoperative complications and subsequent procedures on the operative knee. Patients were evaluated with functional surveys, physical examination including Lachman and pivot-shift test...
Source: Journal of Knee Surgery - June 30, 2016 Category: Orthopaedics Authors: Shakked, RachelWeinberg, MaxwellCapo, JasonJazrawi, LaithStrauss, Eric Tags: Original Article Source Type: research

Femoral Nerve Block after Anterior Cruciate Ligament Reconstruction
J Knee SurgDOI: 10.1055/s-0036-1584538Femoral nerve block (FNB) has been proposed for pain control following anterior cruciate ligament (ACL) reconstruction. Although numerous studies have assessed the efficacy of FNBs, there has been little to no research into the effect of such blocks on postoperative strength and patient-reported outcomes. We hypothesized that performance of an FNB would result in decreased quadriceps strength and poorer patient-reported outcome scores within the first 6 months following ACL reconstruction. A total of 30 patients scheduled to undergo hamstring autograft ACL reconstruction following an a...
Source: Journal of Knee Surgery - June 30, 2016 Category: Orthopaedics Authors: Magnussen, Robert A.Pottkotter, KristyStasi, Stephanie DiPaterno, Mark V.Wordeman, Samuel C.Schmitt, Laura C.Flanigan, David C.Kaeding, Christopher C.Hewett, Timothy E. Tags: Original Article Source Type: research

Does Conventional Lateral Long Bone Radiography Present Sagittal Axes Accurately? A Comparison with Direct Lateral Long Bone Radiography
J Knee SurgDOI: 10.1055/s-0036-1584537To investigate the sagittal alignment, proper and consistent radiographic evaluation is needed. We sought to use an alternative method of obtaining the same view, a direct lateral view and compare it with the conventional method. Conventional lateral long bone radiography and direct lateral long bone radiography were undertaken by 74 consecutive patients undergoing total knee arthroplasty (TKA), preoperatively and postoperatively. Angles between sagittal axes and the mechanical axis (MA), and the visible hip joint area were measured. Postoperative angles between the MA and femoral impl...
Source: Journal of Knee Surgery - June 30, 2016 Category: Orthopaedics Authors: Kwon, Hyuck MinKim, Hee JuneLee, Young HanEshnazarovich, EshnazarovLee, Gil HanLee, Jin WooYang, Ick HwanPark, Kwan Kyu Tags: Original Article Source Type: research

Low Albumin Is a Risk Factor for Complications after Revision Total Knee Arthroplasty
This study confirms the relationship between suboptimal nutritional status and complications following RTKA. Hypoalbuminemia may be used as a potential preoperative predictor of outcomes. Understanding the effects of malnutrition on perioperative complications informs the choice of appropriate candidates for surgical intervention, timing of surgery, resource allocation, and risk counseling preoperatively.[...]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 - June 30, 2016 Category: Orthopaedics Authors: Kamath, Atul F.Nelson, Charles L.Elkassabany, NabilGuo, ZhenggangLiu, Jiabin Tags: Original Article Source Type: research

Factors Affecting Mobility after Knee Arthroplasty
J Knee SurgDOI: 10.1055/s-0036-1584562Restricted mobility is a major issue for individuals with knee osteoarthritis (OA). Total knee arthroplasty (TKA) is expected to improve mobility in people with knee OA by alleviating pain and improving walking ability. The present study aimed to describe the time course of mobility after TKA and to identify the factors affecting mobility after TKA. This prospective cohort study comprised 62 patients undergoing TKA, evaluated at 1 month preoperatively, as well as at 1, 3, and 6 months postoperatively. Outcome measures included mobility (Life Space Assessment; LSA), self-efficacy...
Source: Journal of Knee Surgery - June 30, 2016 Category: Orthopaedics Authors: Hiyama, YoshinoriWada, OsamuNakakita, SatoshiMizuno, Kiyonori Tags: Original Article Source Type: research

Outcomes following Structural Grafting of Distal Femoral Osteochondral Injuries in Patients Aged 40 Years and Older
J Knee SurgDOI: 10.1055/s-0036-1584534Osteochondral lesions of the distal femur represent a challenging clinical entity, particularly in patients > 40 years of age. Microfracture has demonstrated inferior results in this population with clinical deterioration beyond 1 to 2 years postoperatively. Limited evidence exists to support alternative cartilage restoration procedures. The purpose of this study was to report functional outcomes and activity levels following cartilage restoration procedures in patients > 40 years with symptomatic distal femoral osteochondral lesions. From 2000 to 2012...
Source: Journal of Knee Surgery - June 30, 2016 Category: Orthopaedics Authors: Degen, Ryan M.Coleman, Nathan W.Chang, BrendaTetreault, DanielleMahony, Gregory T.Williams, Riley J. Tags: Original Article Source Type: research

Can Teicoplanin Be an Effective Choice for Antibiotic-Impregnated Cement Spacer in Two-Stage Revision Total Knee Arthroplasty?
J Knee SurgDOI: 10.1055/s-0036-1584535The main purpose of this study was to evaluate the clinical results of two-stage revision total knee arthroplasty using a teicoplanin-impregnated cement spacer for infected primary total knee replacements. Twenty-five patients operated between 2005 and 2012 were included in this study. At the clinical status analysis, rate of infection eradication was assessed, physical examination was performed, Knee Society Score (KSS) was noted, isolated microorganisms were recorded, and the radiographic evaluation was performed. The mean KSS improved from 40 (range, 25–69) preoperatively to 7...
Source: Journal of Knee Surgery - June 30, 2016 Category: Orthopaedics Authors: Buyuk, Abdul FettahSofu, HakanCamurcu, Ismet YalkinUcpunar, HanifiKaygusuz, Mehmet AkifSahin, Vedat Tags: Original Article Source Type: research

The Halo Effect: An Unintended Benefit of Care Pathways
The objective of this study was to determine if implementation of a simplified care pathway for total knee arthroplasty (TKA) would affect outcomes of total hip arthroplasty (THA) patients in the same health care system. Data were collected from a total of 5,095 consecutive THA patients in the year before and 2 years after implementation of the care pathway for TKA patients. Postimplementation increases were observed in both early activity (p 
Source: Journal of Knee Surgery - June 30, 2016 Category: Orthopaedics Authors: Barber, CollinFraser, James F.Mendez, Guillermo G.Bradley, BarrieLoftus, Terry J.Jacofsky, David J. Tags: Original Article Source Type: research

Roles of the Team Physician
J Knee SurgDOI: 10.1055/s-0036-1584533The roles of the team physician are much more than providing medical coverage at a sport's event. The team physician has numerous administrative and medical responsibilities. The development of an emergency action plan is an essential administrative task as an example. The implementation of the components of this plan requires the team physician to have the necessary medical knowledge and skill. An expertise in returning an athlete to play after an injury or other medical condition is a unique attribute of the trained team physician. The athlete's return to participation needs to start...
Source: Journal of Knee Surgery - June 20, 2016 Category: Orthopaedics Authors: Kinderknecht, James Tags: Special Focus Section Source Type: research

Three-Dimensional Characterization of the Anterior Cruciate Ligament's Femoral Footprint
J Knee SurgDOI: 10.1055/s-0036-1584271Thieme 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 - June 10, 2016 Category: Orthopaedics Authors: Westermann, Robert W.Sybrowsky, ChristianRamme, AustinAmendola, AnnunziatoWolf, Brian R. Tags: Erratum Source Type: research

Liposomal Bupivacaine Suspension Can Reduce Lengths of Stay and Improve Discharge Status of Patients Undergoing Total Knee Arthroplasty
J Knee SurgDOI: 10.1055/s-0036-1584272Thieme 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 - June 10, 2016 Category: Orthopaedics Authors: Chughtai, MoradCherian, Jeffrey JaiMistry, Jaydev B.Elmallah, Randa D. K.Bennett, AliciaMont, Michael A. Tags: Erratum Source Type: research

Liposomal Bupivacaine in Total Knee Arthroplasty for Better Postoperative Analgesic Outcome and Economic Benefits
J Knee SurgDOI: 10.1055/s-0036-1584270Thieme 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 - June 10, 2016 Category: Orthopaedics Authors: Cherian, Jeffrey JaiMuzaffar, AliBarrington, John W.Elmallah, Randa D. K.Chughtai, MoradMistry, Jaydev B.Mont, Michael A. Tags: Erratum Source Type: research

Issues for the Traveling Team Physician
This article outlines the value of having the team physician traveling with athletes to away venues for competitions or training sessions. At present, this travel presents several issues for the team physician who crosses state lines for taking care of the athletes. In this article, these issues and their possible remedies are discussed. A concern for the travelling team physician is practicing medicine while caring for the team in a state where the physician is not licensed. Another issue can be the transportation of controlled substances in the course of providing optimal care for the team athletes. These two issues are ...
Source: Journal of Knee Surgery - June 6, 2016 Category: Orthopaedics Authors: Kaeding, Christopher C.Borchers, James Tags: Special Focus Section Source Type: research

The University of the National Football League: How Technology, Injury Surveillance, and Health Care Have Improved the Safety of America's Game
This article reviews the methods by which one sports league—the NFL—has used advances in medical technology and injury surveillance to improve the health and safety of its players.[...]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 - June 3, 2016 Category: Orthopaedics Authors: Matava, Matthew J.Görtz, Simon Tags: Special Focus Section Source Type: research

Patient Factors, Donor Age, and Graft Storage Duration Affect Osteochondral Allograft Outcomes in Knees with or without Comorbidities
This study provides new evidence for preoperative patient factors and graft variables that may influence the overall outcome after osteochondral transplantation in the knee.[...]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 - May 26, 2016 Category: Orthopaedics Authors: Nuelle, Clayton W.Nuelle, Julia A.V.Cook, James L.Stannard, James P. Tags: Original Article Source Type: research

Comparison between Closing-Wedge and Opening-Wedge High Tibial Osteotomy in Patients with Medial Knee Osteoarthritis: A Systematic Review and Meta-analysis
J Knee SurgDOI: 10.1055/s-0036-1584189Young active patients with medial knee osteoarthritis (OA) combined with varus leg alignment can be treated with high tibial osteotomy (HTO) to stop the progression of OA and avoid or postpone total knee arthroplasty (TKA). Closing-wedge osteotomy (CWO) and opening-wedge osteotomy (OWO) are the most commonly used osteotomy techniques. The purpose of this study was to compare the clinical and radiologic outcomes and complications between OWO and CWO. We retrospectively evaluated 23 studies including 17 clinical trials from published databases from their inception to May 2015. We evaluat...
Source: Journal of Knee Surgery - May 24, 2016 Category: Orthopaedics Authors: Sun, HaoZhou, LinLi, FengshengDuan, Jun Tags: Original Article Source Type: research

Reliability of the Knee Smartphone-Application Goniometer in the Acute Orthopedic Setting
In conclusion, the App is a reliable tool for use in acute orthopedic care and offers better intra- and interobserver correlation scores for a single active measurement.[...]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 - May 24, 2016 Category: Orthopaedics Authors: Pereira, Luís CarlosRwakabayiza, SylviaLécureux, EstelleJolles, Brigitte M. Tags: Original Article Source Type: research

Outcome of Total Knee Replacement via Two Approaches in Indian Scenario
Conclusion The functional outcome of TKR surgery by midvastus approach was better in the first 3 months in comparison to medial parapatellar approach.[...]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 - May 23, 2016 Category: Orthopaedics Authors: Shukla, RajeevMahajan, PranavSingh, ManjeetJain, Ravi KantKumar, Ravindra Tags: Original Article Source Type: research

Stacked Modalities' Thromboprophylactic Therapy for Patients Undergoing Total Knee Replacement Surgery
J Knee SurgDOI: 10.1055/s-0036-1584188Thromboprophylaxis is a controversial and challenging topic in joint replacement surgery. Mechanical prophylaxis in combination with the use of anticoagulants have been shown to have greater efficacy than single modalities. But the early use of anticoagulants has the potential to increases the risk of postoperative bleeding. The purpose of this study was to evaluate the thromboprophylactic effects of sequential combined method using early-mechanical compression with delayed rivaroxaban in total knee arthroplasty. A retrospective cohort study, including 369 patients receiving simultaneo...
Source: Journal of Knee Surgery - May 23, 2016 Category: Orthopaedics Authors: Jiang, LiminZhang, ShudongZhao, Yuchi Tags: Original Article Source Type: research

The Use of Biologic Agents in Athletes with Knee Injuries
J Knee SurgDOI: 10.1055/s-0036-1584194Biologic agents are gaining popularity in the management of bony and soft tissue conditions about the knee. They are becoming the mainstay of nonoperative therapy in the high-demand athletic population. The most well-studied agents include platelet-rich plasma (PRP) and stem cells—both of which have shown promise in the treatment of various conditions. Animal and clinical studies have demonstrated improved outcomes following PRP treatment in early osteoarthritis of the knee, as well as in chronic patellar tendinopathy. Early clinical evidence also lends support for PRP in the aug...
Source: Journal of Knee Surgery - May 20, 2016 Category: Orthopaedics Authors: Kopka, MichaelaBradley, James P. Tags: Special Focus Section Source Type: research

Application of a Shape-Memory Alloy Concentrator in Displaced Patella Fractures: Technique and Long-Term Results
We present a new alternative treatment technique for displaced patellar fractures. Methods Between April 1995 and May 2005, we used the Nitinol Patella Concentrator (NTPC) to treat 156 consecutive patients with displaced patellar fractures. Injuries arose from vehicular accidents in 56 (35.9%) cases, direct falls onto the knee in 85 (54.5%) cases, and sports injuries in 15 (9.6%) cases. The mean patient age was 46.3 years (range, 25–77 years). Clinical assessments were made using the Böstman knee score and the MOS SF-36 questionnaire (Medical Outcomes Study 36-item short-form health survey), which wer...
Source: Journal of Knee Surgery - May 20, 2016 Category: Orthopaedics Authors: Zhang, YuntongWang, PanfengXia, YanZhou, PanyuXie, YangXu, ShuoguiZhang, Chuncai Tags: Original Article Source Type: research

Results of Lateral Retinacular Release Plus Circumpatellar Electrocautery in Total Knee Arthroplasty without Patellar Resurfacing
This study aims to explore whether patients who received lateral retinacular release (LRR) plus circumpatellar electrocautery (CE) in TKA attain a low incidence of AKP and whether the LRR plus CE increases postoperative complications. Methods Between February 2001 and February 2009, all patients undergoing TKA without patellar resurfacing and LRR plus CE were evaluated. In total, 286 TKAs in 259 (88.7%) patients were available for assessment, with a mean of 9.3 ± 2.5 years (range: 6–14 years) after the index TKA. The patients were evaluated with a VAS and the Kujala patellofemoral scor...
Source: Journal of Knee Surgery - May 20, 2016 Category: Orthopaedics Authors: Wang, YongSun, Jun-YingZha, Guo-Chun Tags: Original Article Source Type: research

Antibiotic-Loaded Spacer for Two-Stage Revision of Infected Total Knee Arthroplasty
Conclusions The use of the spacer allows obtaining a reduction of pain, an improvement of quality of life in the period of time between the two surgical stages and an easier reimplantation of 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 - May 20, 2016 Category: Orthopaedics Authors: Vecchini, EugenioMicheloni, Gian MarioPerusi, FrancescoScaglia, MarcoMaluta, TommasoLavini, FrancoBondi, ManuelDall'Oca, CarloMagnan, Bruno Tags: Original Article Source Type: research

The Arthroscopic All-Inside Tibial-Inlay Reconstruction of the Posterior Cruciate Ligament: Medium-Term Functional Results and Complication Rate
Conclusion Arthroscopic tibial inlay reconstruction is a valuable procedure regarding medium-term subjective and objective outcome measures. Return to sports, subjective satisfaction, and objective stability are predictable. The complication rate is acceptable but particular precaution is recommended to protect the popliteal artery and adjacent structures at risk.[...]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 - May 20, 2016 Category: Orthopaedics Authors: Osti, MichaelHierzer, DorisSeibert, Franz-JosefBenedetto, Karl Peter Tags: Original Article Source Type: research

Clinical and Radiologic Outcomes of Partial Lateral Patellar Facetectomy in Total Knee Arthroplasty
J Knee SurgDOI: 10.1055/s-0036-1584186Recently, some authors have performed partial lateral patellar facetectomy in total knee arthroplasty (TKA) and reported good results. However, research on partial lateral patellar facetectomy in TKA is still lacking. The aim of this study was to evaluate the clinical and radiologic results of partial lateral patellar facetectomies in patellar non-resurfacing and resurfacing TKAs. Total 251 TKAs (patellar non-resurfacing: 131; resurfacing: 120) that were followed up for at least 24 months to evaluate the clinical and radiologic results of partial lateral patellar facetectomies in patel...
Source: Journal of Knee Surgery - May 20, 2016 Category: Orthopaedics Authors: Kim, Chang-WanLee, Chang-RackSeo, Seung-SukGwak, Heui-ChulKim, Jung-HanPark, Joon-Ho Tags: Original Article Source Type: research