Chronic Osteochondral Fractures of the Patella Managed with Open Reduction and Internal Fixation Yields Excellent Knee Function
J Knee Surg DOI: 10.1055/s-0042-1744222Currently, the management of acute osteochondral fractures (OCFs) of the patella is well established. However, the management of chronic OCFs remains debatable, as it is not clear whether such lesions can be accurately reduced or whether they will reliably heal. With well proven results of open reduction and internal fixation (ORIF) with headless compression screws (HCS) for acute OCFs, the application of this technique in late presenting cases is inconclusive. Thus, we present the clinicoradiological outcome of patients with chronic osteochondral injuries managed with ORIF. Fifteen p...
Source: Journal of Knee Surgery - April 18, 2022 Category: Orthopaedics Authors: Mittal, Ravi Digge, Vijay K. Nayak, Tushar Tags: Original Article Source Type: research
Higher Pelvic Incidence Was Associated with a Higher Risk of Sagittal Malposition of Femoral Component and Poor Outcomes of Primary Total Knee Arthroplasty: A Retrospective Cohort Analysis
This study reflects the level of evidence III. [...] Thieme Medical Publishers, Inc. 333 Seventh Avenue, 18th Floor, New York, NY 10001, USAArticle in Thieme eJournals: Table of contents | Abstract | open access Full text (Source: Journal of Knee Surgery)
Source: Journal of Knee Surgery - April 11, 2022 Category: Orthopaedics Authors: Li, Hongyi Zhu, Fei Liao, Shufen Wang, Xiangjiang Zhong, Yanlin Wen, Xingzhao Zhao, Xiaoyi Liao, Weiming Zhang, Zhiqi Tags: Original Article Source Type: research
Management of Pathologic Fractures around the Knee: Part 1 —Distal Femur
J Knee Surg DOI: 10.1055/s-0042-1745740Pathologic fractures secondary to metastatic disease are an increasingly prevalent problem. Such patients require multidisciplinary collaboration to optimize clinical outcomes. An established algorithm for clinical, laboratory, and radiographic work-up will ensure that each patient achieves the best outcome while avoiding catastrophic complications. Metastatic disease to the region of the knee is less commonly encountered than in other regions of the body, but it presents unique difficulties that merit discussion. Part one of this two-part article series will discuss the appropriate w...
Source: Journal of Knee Surgery - April 8, 2022 Category: Orthopaedics Authors: Martin, John R. Auran, Richard L. Duran, Michael D. Comas, Amalia M. de Jacofsky, David J. Tags: Special Focus Section Source Type: research
Influential Studies in Orthopaedic Platelet-Rich Plasma Research Are Recent and Consist of High Levels of Evidence: A Review of the Top 50 Most Cited Publications
J Knee Surg DOI: 10.1055/s-0042-1744223Platelet-rich plasma (PRP) has garnered widespread and increasing attention in recent years. We aimed to characterize the most influential articles in PRP research while clarifying controversies surrounding its use and clinical efficacy and identifying important areas on which to focus future research efforts. The Science Citation Index Expanded subsection of the Web of Science Core Collection was systematically searched to identify the top 50 cited publications on orthopedic PRP research. Publication and study characteristics were extracted, and Spearman's correlations were calculate...
Source: Journal of Knee Surgery - March 10, 2022 Category: Orthopaedics Authors: Oeding, Jacob F. Lansdown, Drew A. Leucht, Philipp Bosco, Joseph A. Konopka, Jaclyn Lajam, Claudette M. Tags: Original Article Source Type: research
Liposomal Bupivacaine and Ropivacaine Adductor Canal Blocks for Anterior Cruciate Ligament Reconstruction Provide Similar Postoperative Analgesia
J Knee Surg DOI: 10.1055/s-0042-1743235The purpose of this study was to compare postoperative pain following anterior cruciate ligament (ACL) reconstruction (ACLR) in patients receiving an adductor canal block (ACB) with ropivacaine (R-ACB) or liposomal bupivacaine (LB-ACB). The secondary purpose was to compare opioid consumption. A prospective cohort study of patients undergoing ACLR at an academic medical center was conducted from November 1, 2018 to November 21, 2019. The first cohort received R-ACB and 30 tablets of 5/325 mg oxycodone/acetaminophen. After June 13, 2019, the second cohort received LB-ACB and 20 tablet...
Source: Journal of Knee Surgery - March 10, 2022 Category: Orthopaedics Authors: DeMaio, Emily L. Hunnicutt, Jennifer L. Haley, Rebecca M. Nazzal, Ehab Chen, Yunyun Premkumar, Ajay Lamplot, Joseph D. Samady, Heather A. Gottschalk, Michael B. Xerogeanes, John W. Tags: Original Article Source Type: research
Lateral Collateral Ligament and Biceps Femoris Tendon Fixation with a Suture Anchor to the Tibial Metaphysis after Proximal Fibula En Bloc Resections Preserve Lateral Knee Stability
This study aims to analyze the functional outcomes and lateral knee stability of patients who underwent lateral collateral ligament (LCL) and biceps femoris tendon reconstruction with suture anchors after proximal fibula en bloc resection for bone tumors. Patients who underwent proximal fibular en bloc resection between 2007 and 2018 were retrospectively viewed. Patients were invited to visit the clinic, and their functional scores were evaluated using the Musculoskeletal Tumor Society Scoring (MSTS) system. Lateral knee stability was evaluated by varus stress radiographs obtained at 20 degrees of flexion, and the range ...
Source: Journal of Knee Surgery - March 10, 2022 Category: Orthopaedics Authors: Buyukdogan, Kadir I şık, Samet Ay ık, Gökhan Tokg özoğlu, Mazhar Ayvaz, Mehmet Tags: Original Article Source Type: research
Midterm Outcomes in Lateral Unicompartment Knee Replacement: The Effect of Patient Age and Bearing Choice
J Knee Surg DOI: 10.1055/s-0042-1743497Isolated lateral compartment knee osteoarthritis (OA) affects between 7 and 10% of patients with knee OA. Although lateral unicompartmental knee arthroplasty (UKA) is an accepted treatment to manage this condition, it is performed relatively infrequently. The aim of this study was to evaluate the mid-term survivorship, radiographic outcomes, and patient-reported outcome measures (PROMs). We performed a retrospective review of a prospectively maintained database of consecutive isolated lateral UKAs performed by a single surgeon at an academic institution between September 2007 and Dece...
Source: Journal of Knee Surgery - March 9, 2022 Category: Orthopaedics Authors: Hartman, Jeffrey Dobransky, Johanna Dervin, Geoffrey F. Tags: Original Article Source Type: research
Epidemiology of Meniscus Injuries in the Military Health System and Predictive Factors for Arthroscopic Surgery
J Knee Surg DOI: 10.1055/s-0042-1744189Meniscus injuries occur at a higher rate in the military than the general population. Appropriate management and rehabilitation of meniscus injuries is important for maintaining readiness. The purpose of this study was to describe the health burden of meniscus injuries in the Military Health System (MHS) to identify the surgical intervention rate for meniscus injuries, and to determine which injury characteristics and demographic variables were associated with the likelihood of surgery after injury. The U.S. Department of Defense Management Analysis and Reporting Tool, a database of h...
Source: Journal of Knee Surgery - March 8, 2022 Category: Orthopaedics Authors: Tropf, Jordan G. Colantonio, Donald F. Tucker, Christopher J. Rhon, Daniel I. Tags: Special Focus Section Source Type: research
Both Intraoperative Medial and Lateral Joint Stabilities at Midflexion Influence Postoperative Patient-Reported Outcome Measures Following Bi-Cruciate Stabilized Total Knee Arthroplasty
J Knee Surg DOI: 10.1055/s-0042-1744191Bi-cruciate stabilized (BCS) total knee arthroplasty (TKA) was developed to approximate normal knee kinematics and is expected to improve clinical outcomes. However, the effects of soft tissue balance at the medial or lateral compartment on patient-reported outcome measures (PROMs) following BCS TKA are unclear. The purpose of this study was to clarify the relationship between the medial or lateral component gaps and PROMs following BCS TKA. One hundred seventeen knees with varus deformities which underwent BCS TKA were included in this study. They were divided into two groups accordi...
Source: Journal of Knee Surgery - March 8, 2022 Category: Orthopaedics Authors: Takagi, Kentaro Taketomi, Shuji Yamagami, Ryota Kawaguchi, Kouhei Sameshima, Shin Kage, Tomofumi Tanaka, Sakae Inui, Hiroshi Tags: Original Article Source Type: research
The “Wind Surf” Deformity—Correcting Fixed Flexion Deformity and Hyperextension in Bilateral CAS TKA
J Knee Surg DOI: 10.1055/s-0042-1744192Severe knee arthritis can result in complex coronal and sagittal angular deformities. Windswept deformity is used to describe a varus deformity and contralateral valgus deformity. We recognized a new sagittal pattern at the time of computer-assisted surgery (CAS) in total knee arthroplasty (TKA) in which one knee has a fixed flexion deformity (FFD), while the contralateral knee has a hyperextension deformity. We propose to define it as “wind surf” deformity mimicking the opposite pull of the wind and a surfer. The incidence of “wind surf” deformity in this series was 0.96% amo...
Source: Journal of Knee Surgery - March 8, 2022 Category: Orthopaedics Authors: Jhurani, Anoop Sheth, Neil P. Agarwal, Piyush Aswal, Mukesh Srivastava, Mudit Tags: Original Article Source Type: research
Increased Complications in Octogenarians Undergoing Same-Day Discharge following Total Knee Arthroplasty: A Matched Cohort Analysis
J Knee Surg DOI: 10.1055/s-0042-1743227Same-day discharge pathways in total knee arthroplasty (TKA) are gaining popularity as a means to increase patient satisfaction and reduce overall costs, but these pathways have not been thoroughly evaluated in potentially at-risk populations, such as in patients ≥80 years old. The purpose of this study was to compare 90-day complications and mortality following same-day discharge after primary TKA in patients ≥80 years old and those <80 years old. Patients who underwent unilateral primary TKA, were discharged on postoperative day 0, and had a minimum 90-day follow-up were iden...
Source: Journal of Knee Surgery - March 8, 2022 Category: Orthopaedics Authors: Berger, Peter Z. Gu, Alex Fassihi, Safa C. Stake, Seth Bovonratwet, Patawut Gioia, Casey Palosaari, Andrew Campbell, Joshua C. Thakkar, Savyasachi C. Tags: Original Article Source Type: research
Time-Based Learning Curve for Robotic-Assisted Total Knee Arthroplasty: A Multicenter Study
This study demonstrated the learning curve for a large cohort of RA-TKAs. This model demonstrated a learning curve between 15 and 20 cases and beyond. These are important findings for this innovative technology. [...] Thieme Medical Publishers, Inc. 333 Seventh Avenue, 18th Floor, New York, NY 10001, USAArticle in Thieme eJournals: Table of contents | Abstract | Full text (Source: Journal of Knee Surgery)
Source: Journal of Knee Surgery - March 7, 2022 Category: Orthopaedics Authors: Chen, Zhongming Bhowmik-Stoker, Manoshi Palmer, Matthew Coppolecchia, Andrea Harder, Benjamin Mont, Michael A. Marchand, Robert C. Tags: Original Article Source Type: research
Stability with a Constrained Posterior Stabilized Primary Total Knee Arthroplasty Does Not Compromise Durability
J Knee Surg DOI: 10.1055/s-0042-1743230Total knee arthroplasty (TKA) in cases of complex deformity (e.g., ligamentous laxity, posttraumatic arthritis) may require prostheses with inherent varus–valgus stability greater than that of traditional posterior stabilized or cruciate-retaining implants. Here, we investigate the clinical and radiographic outcomes of TKA using a midlevel constraint (MLC) prosthesis. A retrospective review of 53 patients (62 knees) who underwent primary TKA with an MLC implant was performed. Short tibial stem extensions were utilized in 49 knees, and 13 knees received no stem extension. Mean follow...
Source: Journal of Knee Surgery - March 3, 2022 Category: Orthopaedics Authors: Yohe, Nicholas Vanderbrook, Douglas J. Sherman, Alain E. Papas, Paraskevi Vivian Scuderi, Giles R. Tags: Original Article Source Type: research
Larger Prior Tibial Tunnel Size Is Associated with Increased Failure Risk following Revision Anterior Cruciate Ligament Reconstruction
J Knee Surg DOI: 10.1055/s-0042-1743234We hypothesize that larger prior tunnel size is associated with an increased risk of failure of single-stage revision anterior cruciate ligament reconstruction (ACLR) as defined by the performance of a re-revision (third) ACLR on the index knee. Retrospective review identified 244 patients who underwent single-stage revision ACLR at a single center with available preoperative radiographs. Patient and surgical factors were extracted by chart review. The maximum diameter of the tibial tunnel was measured on lateral radiographs and the maximum diameter of the femoral tunnel was measured ...
Source: Journal of Knee Surgery - March 3, 2022 Category: Orthopaedics Authors: Leon, Jacy Flanigan, David C Colatruglio, Matthew Ormseth, Benjamin Fitzpatrick, Sean Duerr, Robert A Kaeding, Christopher C. Magnussen, Robert A. Tags: Original Article Source Type: research
Increased Accuracy in Templating for Total Knee Arthroplasty Using 3D Models Generated from Radiographs
This study compared templating accuracy in TKA using two-dimensional (2D) digital radiographs to a novel imaging technology that generates a three-dimensional (3D) model from these 2D radiographs. Two hundred and two robotic-assisted primary TKA surgical cases using Persona Knee System (Zimmer Biomet, Warsaw, IN) were retrospectively analyzed. For all cases, 3D templating was completed preoperatively using a novel radiographic image acquisition protocol. Using the same radiographs, the knee was templated using a 2D digital templating program. All surgeons were blinded to the final implant sizes, and all templating was done...
Source: Journal of Knee Surgery - March 3, 2022 Category: Orthopaedics Authors: Klag, Elizabeth A. Lizzio, Vincent A. Charters, Michael A. Ayoola, Ayooluwa S. Wesemann, Luke Banka, Trevor R. North, W. Trevor Tags: Original Article Source Type: research
