Joint awareness after fixed and mobile-bearing total knee arthroplasty with minimum 12 years of follow-up: A propensity matched-pair analysis
This study aimed to compare long-term clinical results between fixed-bearing (FB) and mobile-bearing (MB) total knee arthroplasty (TKA) as well as patients ’ adaptation to their artificial joints. (Source: The Knee)
Source: The Knee - March 29, 2023 Category: Orthopaedics Authors: Sancar Bakircioglu, Taha Aksoy, Omur Caglar, A. Mazhar Tokgozoglu, Bulent Atilla Source Type: research
Moving orthopaedic procedures out of the operating theatre: Outpatient needle arthroscopy can reduce cost & waste, and increase inpatient capacity compared to conventional knee arthroscopy
Needle arthroscopy (NA) is an emerging technique that could streamline pathways, facilitate timely care, and reduce service burden. The primary aim was to assess the practical and economic viability of an outpatient NA service. Secondary aims were to assess the relative costs and benefits compared to a conventional arthroscopy (CA) service. (Source: The Knee)
Source: The Knee - March 29, 2023 Category: Orthopaedics Authors: D. Munn, J. Burt, C.W. Gee, C.K. Mclaren, J.V. Clarke, A.J. Hall Source Type: research
Development and validation of a clinical prediction model for return to work after arthroscopic anterior crucial ligament reconstruction
The Anterior Cruciate Ligament (ACL) is a key structure which stabilizes the knee joint as it resists anterior tibial translation and rotational loads [1]. In the United States, torn ACLs amount up to 200.000 cases yearly, making it one of the most common ligament injuries [2 –4]. Ninety-five per cent of individuals with surgical ACL reconstruction undergo surgery due to persistent rotational and/or anterolateral instabilities, for potential prevention of early osteoarthritis and for the preservation of athletic performance [5]. (Source: The Knee)
Source: The Knee - March 28, 2023 Category: Orthopaedics Authors: Ramona Ritzmann, Aurora Giuliani, Christoph Centner, Marlene Mauch, Albrecht Heitner, Jochen Paul, Christian Egloff, Christina Ramsenthaler, Markus Wenning Source Type: research
Insertion of a spacer block translates the tibia anteriorly during evaluation of soft tissue balance in cruciate-retaining total knee arthroplasty
Soft tissue balance is an important determinant of the outcome of total knee arthroplasty (TKA). However, there are differences in the joint gap and ligament balance between the osteotomized femoral and tibial surfaces and those after TKA. The aim of this study was to compare the relationship between the femur and tibia at insertion of a spacer block with that after cruciate-retaining (CR) TKA. (Source: The Knee)
Source: The Knee - March 28, 2023 Category: Orthopaedics Authors: Akihiro Nitta, Keizo Wada, Daisuke Hamada, Koichi Oba, Hiroshi Mikami, Koichi Sairyo Source Type: research
Effect of body position and external ankle load on the pendulum test in adults
The Wartenberg pendulum test has been commonly used to evaluate the passive stiffness of the knee in healthy and clinical populations. A joint is considered stiff if there is reduced passive motion. This reduction in passive motion occurs when intrinsic mechanical properties of the tissue about the joint resist deformation [1]. Passive stiffness for the pendulum test is often measured through kinematic variables including the number of leg swings, a relaxation index, and damping and stiffness coefficients, as among others. (Source: The Knee)
Source: The Knee - March 22, 2023 Category: Orthopaedics Authors: Diego M. Ferreira, Huaqing Liang, Jianhua Wu Source Type: research
Association between knee cartilage thickness determined by magnetic resonance imaging three-dimensional analysis and the International Cartilage Repair Society (ICRS) arthroscopic grade
The purpose of this study was to retrospectively investigate whether the average cartilage thickness calculated by magnetic resonance imaging (MRI) three-dimensional (3D) analysis system was correlated with the International Cartilage Repair Society (ICRS) grade at each subregion, as a representative scoring for arthroscopic evaluation. (Source: The Knee)
Source: The Knee - March 21, 2023 Category: Orthopaedics Authors: Nobutake Ozeki, Hideyuki Koga, Yusuke Nakagawa, Hiroki Katagiri, Hisako Katano, Makoto Tomita, Jun Masumoto, Ichiro Sekiya Source Type: research
The effect of BMI and other factors on post-operative length of stay: A multivariable regression analysis of 860 patients undergoing total knee arthroplasty
Demand for hip and knee arthroplasty has increased year on year [1], and this trend is predicted to continue due to unmet need, increasing obesity, and longer life expectancy [2]. There is a trend towards minimising length of stay (LOS) after total knee arthroplasty (TKA), as increased LOS is associated with increased complication and readmission rates, worse 1-year patient-related outcome measures (PROMS) scores, and higher costs [3 –6]. In some studies, day case arthroplasty has been shown to be beneficial compared with inpatient arthroplasty for both the hip and knee [7–9]. (Source: The Knee)
Source: The Knee - March 15, 2023 Category: Orthopaedics Authors: Howell Fu, Chao Wang, Irrum Afzal, Deiary Kader, Vipin Asopa, David Sochart Source Type: research
Dynamic knee joint stiffness during bilateral lower extremity landing 6 months after ACL reconstruction
Dynamic stiffness and energy absorption are lower in the surgical knee during landing from a jump. Therapeutic interventions that target increasing quadriceps RTD may help optimize dynamic stability and energy absorption during landing. (Source: The Knee)
Source: The Knee - March 11, 2023 Category: Orthopaedics Authors: Benjamin D. Brightwell, Michael A. Samaan, Darren Johnson, Brian Noehren Source Type: research
Sarcopenia is an independent risk factor for failure to achieve the 1-year MCID of the KOOS, JR and PROMIS PF-SF10a after TKA
Sarcopenia, which is a progressive and multifactorial condition of decreased muscle strength, has been identified as an independent predictor for falls, revision, infection, and readmissions following total knee arthroplasty (TKA), but its association to patient reported outcomes (PROMs) is less studied. The aim of this study is to determine if sarcopenia and other measures of body composition are correlated with ability to achieve the 1-year minimal clinically important difference (MCID) of the KOOS JR and PROMIS-PF-SF10a following primary TKA. (Source: The Knee)
Source: The Knee - March 11, 2023 Category: Orthopaedics Authors: Tyler J. Humphrey, Mehdi S. Salimy, Jeffrey M. Jancuska, Cameron R. Egan, Christopher M. Melnic, Kyle Alpaugh, Hany S. Bedair Source Type: research
Effect of the volume of resected discoid lateral meniscus on the contact stress of the tibiofemoral joint: A finite element analysis
This study aimed to evaluate the effect of the volume of resected DLM on the contact stress of the tibiofemoral joint using a finite element analysis. (Source: The Knee)
Source: The Knee - March 9, 2023 Category: Orthopaedics Authors: Takuji Yokoe, Koki Ouchi, Taisei Matsumoto, Takuya Tajima, Etsuo Chosa Source Type: research
A prospective study of joint position sense after anterior cruciate ligament injury, reconstruction with a bone-patella tendon-bone graft, and rehabilitation
Disruption of the anterior cruciate ligament (ACL) is associated with significant biomechanical and neuromuscular changes including deficits in joint proprioception. While previous studies have assessed joint position sense (JPS) in ACL deficient knees, methods have varied and few have done so with prospective study designs. The specific aim of this investigation was to determine the effect(s) of ACL reconstruction and recovery time may have on JPS. (Source: The Knee)
Source: The Knee - March 7, 2023 Category: Orthopaedics Authors: Willie Dong, Bruce D. Beynnon Source Type: research
Wound complications following revision total knee arthroplasty: Prevalence and outcomes
Wound complications following revision TKA can be catastrophic and can compromise joint and even limb. The purpose of this study was to determine the prevalence of superficial wound complications requiring return to the OR in revision TKA, rates of subsequent deep infection, factors that increase the risk of superficial wound complications, and the outcomes of revision TKA following development of superficial wound complications. (Source: The Knee)
Source: The Knee - March 4, 2023 Category: Orthopaedics Authors: Joseph Koressel, Brian A. Perez, Gregory T. Minutillo, Caroline B. Granruth, Sand Mastrangelo, Gwo-Chin Lee Source Type: research
Three-dimensional analysis of functional femoral antetorsion and the position of the greater trochanter in high-grade patellofemoral dysplastic knees
The relationship between functional femoral antetorsion, the greater trochanter (GT) position and anatomical antetorsion has been demonstrated in patients with a primary hip pathology. However, the functional antetorsion and GT position have not been analyzed in patellofemoral dysplastic knees. The aim of this study was to develop a three-dimensional (3D) measurement to quantify the functional femoral antetorsion and position of the GT and to analyze these measurements in a cohort of high-grade patellofemoral dysplastic knees. (Source: The Knee)
Source: The Knee - March 3, 2023 Category: Orthopaedics Authors: Sandro Hodel, Andreas Flury, Armando Hoch, Philipp F ürnstahl, Patrick Oliver Zingg, Lazaros Vlachopoulos, Sandro F. Fucentese Source Type: research
Unicompartmental Knee Arthroplasty: General trends of clinical practice
Unicompartmental knee replacement (UKR) has many advantages over total knee replacement (TKR) in carefully selected patients with isolated single compartment advanced osteoarthritis. UKR is minimally invasive and more joint preserving as it retains both cruciate ligaments as well as the unaffected compartments of the knee. This is particularly advantageous in younger patients with higher functional demands. UKR is just as beneficial in elderly patients who are increasingly presenting with a multitude of medical co-morbidities, as it has a significantly lower volume of blood loss, the surgery overall is less of a physiologi...
Source: The Knee - March 1, 2023 Category: Orthopaedics Authors: Oday Al-Dadah, Caroline Hing Tags: Editorial Source Type: research
Letter to the Editor
Although I enjoyed your editorial in the December 2022 issue of The Knee, “Current concepts in total knee arthroplasty” [1] I would have been happier if the discussion had included unicompartmental knee replacement (UKR). Two papers in the issue would have been particularly relevant [2,3]. The literature is remarkably consistent indicating that approximately half of a ll patients put forward for knee arthroplasty are suitable candidates for a unicompartmental replacement [4–6]. Typically, 48% for medial UKR, and 6.5% for a lateral UKR [5]. (Source: The Knee)
Source: The Knee - March 1, 2023 Category: Orthopaedics Authors: J.W.S. Tice Source Type: research
