Article
Multidisciplinary Sciences
Zhifeng Zhang, Wei Chai, Guanghui Zhao, Qida Zhang, Zhenxian Chen, Xinyao Wang, Pingping Wei, Yanwei Zhang, Zhongmin Jin, Yusheng Qiu
Summary: In Chinese population with pre-operative varus knee caused by combined deformities, no significant association was found between post-operative lower limb mechanical alignment and HSS score.
SCIENTIFIC REPORTS
(2021)
Article
Orthopedics
Haoran Lin, Qi Cheng, Guangjian Li, Jie Zhao, Qiang Wang
Summary: This study assessed the functional outcomes of mechanical alignment (MA) and kinematic alignment (KA) procedures in total knee arthroplasty (TKA) patients. The results showed that compared to the MA method, the KA procedure provided pain relief and improved active motion range within 6 weeks after the surgery. Additionally, the KA procedure significantly increased the Knee Disability and Osteoarthritis Outcome Score for Joint Replacement (KOOS JR) at 6 weeks, 6 months, and 1 year post-operation.
JOURNAL OF ORTHOPAEDIC SURGERY AND RESEARCH
(2023)
Article
Health Care Sciences & Services
Elliot Sappey-Mariner, Scott A. Wu, Stefano A. Bini
Summary: In this retrospective study involving 7 patients, revising stiff or unstable TKA from MA to KA resulted in improved range of motion by 30 degrees on averages, resolved instability without the use of constrained liners, improved clinical outcomes with a mean gain of 75 points on the KSS, and restored constitutional limb alignment within 2 degrees in all patients. Promising short term results warrant further study.
JOURNAL OF PERSONALIZED MEDICINE
(2022)
Article
Health Care Sciences & Services
Yaron Bar Ziv, Ahmad Essa, Konstantin Lamykin, Najib Chacar, Gilad Livshits, Salah Khatib, Yoav Comaya, Noam Shohat
Summary: The study aimed to evaluate the safety and functional outcomes of excessive varus cuts in kinematic alignment total knee arthroplasty. The results showed that unrestricted tibial component cuts in kinematic alignment total knee arthroplasty were safe and efficient in relieving pain and restoring function for at least two years.
JOURNAL OF PERSONALIZED MEDICINE
(2022)
Article
Orthopedics
Kevin D. Plancher, Jasmine E. Brite, Karen K. Briggs, Stephanie C. Petterson
Summary: This study investigated the long-term outcomes of pre-arthritic/kinematically aligned knees in non-robotically assisted unicompartmental knee arthroplasty (UKA). The results showed that pre-arthritic/kinematically aligned knees had better survival, daily activities, and sports function compared to non-pre-arthritic/kinematically aligned knees, with a higher percentage achieving the patient acceptable symptom state (PASS).
JOURNAL OF BONE AND JOINT SURGERY-AMERICAN VOLUME
(2022)
Article
Orthopedics
Jade Pei Yuik Ho, Joon Hee Cho, Hee Seung Nam, Seong Yun Park, Yong Seuk Lee
Summary: This study found that the need for medial ligament balancing during surgery was determined by constitutional alignment and preoperative mechanical parameters. Patients with constitutional varus and a larger change in medio-lateral gap difference in extension had a higher incidence of requiring medial ligament balancing.
KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY
(2023)
Article
Medicine, General & Internal
Fortunato Giustra, Francesco Bosco, Giorgio Cacciola, Salvatore Risitano, Marcello Capella, Alessandro Bistolfi, Alessandro Masse, Luigi Sabatini
Summary: This study aimed to evaluate the clinical outcomes of preserving or sacrificing the posterior cruciate ligament (PCL) in medial pivot (MP) philosophy and kinematic alignment (KA) techniques. The results showed no significant differences in radiographic, functional, and clinical outcomes between preserving or sacrificing the PCL. However, a slight trend towards better clinical outcomes was observed in the PCL-preserved group.
JOURNAL OF CLINICAL MEDICINE
(2022)
Article
Orthopedics
Ameer M. Elbuluk, Seth A. Jerabek, Vincentius J. Suhardi, Peter K. Sculco, Michael P. Ast, Jonathan M. Vigdorchik
Summary: This study compared the differences between mechanical alignment and kinematic alignment strategies in total knee arthroplasty. The results showed that patients in the kinematic alignment group had less pain at 6 weeks postoperatively and higher Forgotten Joint Scores at 1 and 2 years postoperatively.
JOURNAL OF ARTHROPLASTY
(2022)
Article
Orthopedics
Philip Winnock de Grave, Thomas Luyckx, Tamaya Criekinge, Jacobus Hendrik Mueller, Britt Ollivier, Eduard Eecke, Sally LiArno, Ahmad Faizan, Kurt Claeys
Summary: The purpose was to determine the proportion of native non-arthritic knees that fit within the target zones of three different alignment techniques and estimate the adjustments needed to bring outlier knees within the target zones. The hypothesis was that iKA had a higher proportion of knees within its target zone compared to the other techniques.
KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY
(2023)
Article
Health Care Sciences & Services
Antonio Klasan, Andreas Kapshammer, Veronika Miron, Zoltan Major
Summary: The study compared the effects of mechanical alignment (MA) and kinematic alignment (KA) on contact pressure, contact area, and stress in total knee arthroplasty. The results showed that KA can reduce or maintain contact pressure by increasing or maintaining contact area. The stress distribution was similar between MA and KA, except for valgus knees where slightly higher stresses were observed for KA.
JOURNAL OF PERSONALIZED MEDICINE
(2022)
Article
Orthopedics
Benjamin L. Schelker, Celine S. Moret, Manuel P. Sava, Ruediger von Eisenhart-Rothe, Heiko Graichen, Markus P. Arnold, Vincent Leclercq, Michael T. Hirschmann
Summary: The purpose of this study was to investigate the influence of alignment strategy on bone resection in varus knee phenotypes by visualizing the corresponding bone sections. The results showed that different alignment strategies require different amounts of bone resection depending on the varus phenotype, and individual decision-making for the phenotype is more important than the dogmatically correct alignment strategy.
KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY
(2023)
Article
Orthopedics
Joon Hee Cho, Hee Seung Nam, Seong Yun Park, Jade Pei Yuik Ho, Yong Seuk Lee
Summary: The distribution of the Coronal Plane Alignment of the Knee (CPAK) phenotype in patients who underwent medial opening-wedge high tibial osteotomy (OWHTO) was clarified, and predictive factors for postoperative alignment changes were identified. Constitutional and postoperative joint line obliquity (JLO) were found to be predictive factors of postoperative alignment changes after OWHTO.
KNEE SURGERY SPORTS TRAUMATOLOGY ARTHROSCOPY
(2023)
Article
Orthopedics
Bernhard Springer, Wenzel Waldstein, Ulrich Bechler, Anna Jungwirth-Weinberger, Reinhard Windhager, Friedrich Boettner
Summary: The study revealed that functional ACL insufficiency in osteoarthritic varus knees is associated with greater varus deformity and more advanced CTFS.
JOURNAL OF ARTHROPLASTY
(2021)
Article
Orthopedics
Binfeng Liu, Chengyao Feng, Chao Tu
Summary: This study compared the outcomes of kinematic alignment (KA) and mechanical alignment (MA) in total knee arthroplasty patients and found that the KA technique achieved better functional outcomes than the MA technique, while the two techniques had similar effects in other aspects.
JOURNAL OF ORTHOPAEDIC SURGERY AND RESEARCH
(2022)
Review
Medicine, General & Internal
Eugenio Cammisa, Iacopo Sassoli, Matteo La Verde, Stefano Fratini, Vito Gaetano Rinaldi, Giada Lullini, Vittorio Vaccari, Stefano Zaffagnini, Giulio Maria Marcheggiani Muccioli
Summary: This review discusses the outcomes of bilateral knee arthroplasty in patients with windswept deformity (WSD). The results show that knee replacement surgery improves knee function and reduces axial deviation in both valgus and varus knees. Unicompartmental knee arthroplasty (UKA) allows for limited axial correction, while kinematic alignment (KA) provides similar results in both knees. The choice of implant is important for functional outcomes.
JOURNAL OF CLINICAL MEDICINE
(2022)