Ligament Tension and Balance before and after Robotic-Assisted Total Knee Arthroplasty – Dynamic Changes with Increasing Applied Force
J Knee Surg DOI: 10.1055/s-0042-1760390The optimal force applied during ligament balancing in total knee arthroplasty (TKA) is not well understood. We quantified the effect of increasing distraction force on medial and lateral gaps throughout the range of knee motion, both prior to and after femoral resections in tibial-first gap-balancing TKA. Twenty-five consecutive knees in 21 patients underwent robotic-assisted TKA. The posterior cruciate ligament was resected, and the tibia was cut neutral to the mechanical axis. A digital ligament tensioning tool recorded gaps and applied equal mediolateral loads of 70 N (baseline)...
Source: Journal of Knee Surgery - February 2, 2023 Category: Orthopaedics Authors: Sharma, Abhinav K. Plaskos, Christopher Shalhoub, Sami Lawrence, Dylan Vigdorchik, Jonathan M. Lawrence, Jeffrey M. Tags: Original Article Source Type: research
MPFL Reconstruction Combined with a Modified Elmslie –Trillat Procedure for Recurrent Patellofemoral Instability
J Knee Surg DOI: 10.1055/a-2001-6565Several combined procedures have been reported for treating recurrent patellofemoral instability (RPI) with various types and severity of morphological abnormalities, but none have identified absolute threshold values as indications for surgery. We performed medial patellofemoral ligament (MPFL) reconstruction combined with a modified Elmslie–Trillat (ET) procedure on 24 knees (10 male and 11 female patients) to treat RPI with morphological abnormalities corresponding to elevated tibial tubercle–trochlear groove (TT–TG) distance, significant patella alta, and trochlear dysplasia. T...
Source: Journal of Knee Surgery - February 2, 2023 Category: Orthopaedics Authors: Mitani, Genya Serigano, Kenji Takagaki, Tomonori Hamahashi, Kosuke Takizawa, Daichi Sogo, Yasuyuki Sato, Masato Watanabe, Masahiko Tags: Original Article Source Type: research
The Use of Artificial Intelligence for the Prediction of Periprosthetic Joint Infection Following Aseptic Revision Total Knee Arthroplasty
This study utilized machine learning as a tool for the prediction of PJI following revision TKA for aseptic failure with excellent performance. The validated machine learning models can aid surgeons in patient-specific risk stratifying to assist in preoperative counseling and clinical decision making for patients undergoing aseptic revision TKA. [...] 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 - February 2, 2023 Category: Orthopaedics Authors: Klemt, Christian Yeo, Ingwon Harvey, Michael Burns, Jillian C Melnic, Christopher Uzosike, Akachimere Cosmas Kwon, Young-Min Tags: Original Article Source Type: research
The 50 Most Cited Publications in Adipose-Derived “Stem Cell Therapies” with Application in Orthopaedic Surgery
This study provides a current landscape on the most cited articles in lipoaspirates in orthopaedic surgery. With the expansion of ADSCs and MAT in the past two decades, this study provides the first historical landmark of the literature and a launching point for future research. Studies should explicitly state their processing methodology and whether their study investigates ADSCs or MAT to avoid misinformation. [...] 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 - February 2, 2023 Category: Orthopaedics Authors: Bi, Andrew S. Hernandez, Hunter C. Oeding, Jacob F. Strauss, Eric J. Campbell, Kirk A. Jazrawi, Laith M. Kennedy, John G. Tags: Original Article Source Type: research
Occupational and Functional Outcomes following Patellofemoral Arthroplasty in U.S. Military Servicemembers
This study assessed return to work and conversion to TKA rates following PFA in a young, military cohort. Patient demographics, pain scores, and surgical information were retrospectively collected for all active-duty military members who underwent PFA over a 4-year period. The data were then analyzed to calculate return to work, conversion to TKA, and perioperative complications rates. A total of 48 servicemembers with 60 total PFAs (36 unilateral, 12 bilateral) were included, with a mean follow up of 2.2 years. At the final follow-up, 83% of servicemembers returned to military service or completed their service obligation...
Source: Journal of Knee Surgery - January 31, 2023 Category: Orthopaedics Authors: Fisher, Tuesday F. Rider, Danielle E. Waterman, Brian R. Belmont, Philip J. Tags: Original Article Source Type: research
Evaluation of Anatomical Variations with Morphological Measurements and Their Relationship to Meniscal Injury and Ligament Damage
J Knee Surg DOI: 10.1055/a-1933-3592The purpose of this study was to reveal the anatomical risk factors for anterior and posterior cruciate ligament (ACL and PCL) injuries and menisci injury. We aim to investigate whether there are significant relationships between tibial tubercle-trochlear groove (TT-TG) distance, patella angle, trochlear sulcus angle (TSA), trochlear groove depth (TGD), medial and lateral trochlea length (MT and LT), MT/LT ratio, lateral patellar tilt angle (LPTA), patella-patellar tendon angle (P-PTA), quadriceps-patellar tendon angle (QPA), Insall-Salvati index (ISI), medial and lateral trochlear incli...
Source: Journal of Knee Surgery - January 24, 2023 Category: Orthopaedics Authors: O ğuzdoğan, Gülşen Yücel Arslan, Fatma Zeynep Tags: Original Article Source Type: research
Three-Dimensional Orientation of the Native Anterior Cruciate Ligament in Magnetic Resonance Imaging
J Knee Surg DOI: 10.1055/a-1946-6143The aim of this study was to describe the three-dimensional orientation of the native anterior cruciate ligament (ACL) in magnetic resonance imaging (MRI) by calculating the angles of inclination in relation to the axial plane which is given for the knee joint line in a group of healthy individuals. These could help to establish guidelines that may be used for the surgical positioning of bone tunnels during ACL reconstruction. A total of 290 MRI scans of patients with integrity of the ACL were evaluated; three observers identified the coordinates of the femoral and tibial insertion sites...
Source: Journal of Knee Surgery - January 24, 2023 Category: Orthopaedics Authors: Ortiz, Jorge Rolando L ópez, Laura Herrera, Juan Sebasti án Mart ínez, José Tomás Buitrago, Giancarlo Tags: Original Article Source Type: research
Patients With Significant Medical Comorbidities May Benefit from Unicompartmental Knee Arthroplasty Over Total Knee Arthroplasty
This study found an increase in complication rates, readmission rates, and LOS, along with a lower likelihood of discharge home when undergoing a TKA. These findings suggest that patients with significant medical comorbidities at baseline may benefit from UKA over TKA when anatomically indicated. [...] 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 - January 19, 2023 Category: Orthopaedics Authors: Pascual-Leone, Nicolas Sloan, Matthew Shah, Vivek M. Sheth, Neil P. Tags: Original Article Source Type: research
Clinical Outcomes after Computed Tomography-Based Total Knee Arthroplasty: A Minimum 3-Year Analyses
J Knee Surg DOI: 10.1055/s-0042-1759790Computed tomography (CT) scan–based three-dimensional (3D) modeling operative technology has been shown to improve upon results of manual total knee arthroplasties (TKAs). Although there are many reports on superior precision of this CT-based technology, there has been continuing interest regarding extended clinical outcomes. The purpose of this study was to compare their clinical outcomes with manual TKAs at approximately 3-year follow-up. Specifically, we analyzed: (1) survivorship, (2) functional outcomes, (3) complications, and (4) radiographic outcomes (i.e., alignment, progres...
Source: Journal of Knee Surgery - January 19, 2023 Category: Orthopaedics Authors: Marchand, Robert C. Scholl, Laura Taylor, Kelly B. Erwin, Daniel J. Bhowmik-Stoker, Manoshi Chen, Zhongming Salem, Hytham S. Mont, Michael A. Tags: Original Article Source Type: research
Biologic Disease-Modifying Antirheumatic Drugs Do Not Increase Risk for Prosthetic Joint Infection in Setting of Total Knee Arthroplasty
J Knee Surg DOI: 10.1055/s-0042-1760389Over 25% of patients with rheumatoid arthritis (RA) are expected to undergo a joint replacement during their lifetime. Current practice guidelines recommend withholding biologic therapy 1 week prior to total hip arthroplasty, given its immunosuppressive effects. Most patients are on a regimen including biologic and nonbiologic therapy; however, the individual influences of these therapies are not well understood in the setting of total knee arthroplasty (TKA). Therefore, we sought to compare biologic, nonbiologic, and recipients of both types of therapy in patients with RA undergoing ...
Source: Journal of Knee Surgery - January 19, 2023 Category: Orthopaedics Authors: Bains, Sandeep S. Chen, Zhongming Sax, Oliver C. Salib, Christopher G. Paulson, Ambika E. Delanois, Ronald E. Tags: Original Article Source Type: research
Targeting Safe Analgesia of the Posterior Knee Capsule
J Knee Surg DOI: 10.1055/a-1965-4283 Thieme Medical Publishers, Inc. 333 Seventh Avenue, 18th Floor, New York, NY 10001, USAArticle in Thieme eJournals: Table of contents | Full text (Source: Journal of Knee Surgery)
Source: Journal of Knee Surgery - January 19, 2023 Category: Orthopaedics Authors: Bhowmik, Subasish Matthews, Dylan Kumar, Amanda H. Tags: Letter to the Editor Source Type: research
Mid-Term Clinical and Radiological Outcomes of Lateral Meniscal Allograft Transplantation with Suture-Only Fixation Plus Capsulodesis
J Knee Surg DOI: 10.1055/a-1946-7079Meniscal allograft transplantation (MAT) is an effective reconstructive procedure for treating a symptomatic postmeniscectomy syndrome. It consists of replacing the lost meniscal tissue aiming to improve the clinical outcomes and prevent progressive deterioration of the joint. The aim of this study was to evaluate meniscal graft survivorship and report on the radiographic (in terms of graft extrusion and joint space width and alignment) and the functional results through a midterm follow-up of lateral MAT performed with a soft tissue fixation technique after capsulodesis. In total, 23 pa...
Source: Journal of Knee Surgery - January 13, 2023 Category: Orthopaedics Authors: Morales-Avalos, Rodolfo Masferrer-Pino, Ángel Padilla-Medina, Jos é Ramón Amestoy-Ramos, Jorge Ib áñez, Maximiliano Perelli, Simone Ariztegui-Andrade, Cristina Espregueira-Mendes, Jo ão Monllau, Joan Carles Tags: Original Article Source Type: research
Accuracy of Advanced Active Robot for Total Knee Arthroplasty: A Cadaveric Study
Conclusion This in vivo study suggests that the use of this newly advanced active robotic system for TKA demonstrates a high degree of accuracy in terms of resection thickness and alignment. This finding supports the clinical application of this advanced robotic system.
Level of Evidence Cadaveric study, Level V. [...] 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 - January 13, 2023 Category: Orthopaedics Authors: Lee, Han-Jun Park, Kwan Kyu Park, Yong-Beom Choi, Sung Wook Kim, Bong-Oh Kim, Seong Hwan Tags: Original Article Source Type: research
The Cost Effectiveness of Unicompartmental versus Total Knee Arthroplasty
This study examines the potential cost savings for the health system and the community in a broadly accessible model through the increased utilization of unicompartmental knee arthroplasty (UKA) using robotic arm-assisted UKA (raUKA) versus conventional total knee arthroplasty (cTKA). We retrospectively reviewed 240 patients where the first 120 consecutive raUKA performed during this period were matched to 120 cTKAs. Clinical data from the medical records and costs for procedure for each component were collected. Bivariate analyses were performed on the data to determine if there were statistically significant differences ...
Source: Journal of Knee Surgery - December 31, 2022 Category: Orthopaedics Authors: Varughese, Ibin Whitehouse, Sarah L. Donnelly, William J. Crawford, Ross W. Tags: Original Article Source Type: research
Does Time Spent in the Post-Anesthesia Care Unit Affect Hospital Lengths of Stay following Primary Total Knee Arthroplasty?
J Knee Surg DOI: 10.1055/s-0042-1759791Given the current healthcare economic environment, substantial efforts have been made to help streamline the in-hospital care for total knee arthroplasty (TKA) patients. While potential cost-reducing factors have been identified in the literature, analyses specifically considering post-anesthesia care unit (PACU) lengths of stay (LOS) are lacking. Therefore, the purpose of this study was to identify factors associated with (1) longer PACU LOS as well as (2) longer Hospital LOS. Prospectively collected TKA data from seven participating hospitals within a large health system were evalua...
Source: Journal of Knee Surgery - December 31, 2022 Category: Orthopaedics Authors: Sayegh, Michael J. Garbarino, Luke J. Gold, Peter A. Anis, Hiba K. Chen, Zhongming Sodhi, Nipun Danoff, Jonathan R. Mont, Michael A. Tags: Original Article Source Type: research
