scholarly journals Clinical Results of Lateral Unicompartmental Knee Arthroplasty: Minimum 2-Year Follow-up

2016 ◽  
Vol 8 (4) ◽  
pp. 386 ◽  
Author(s):  
Kyung Tae Kim ◽  
Song Lee ◽  
Jeehyoung Kim ◽  
Jin Woo Kim ◽  
Min Su Kang
2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Burak Akan ◽  
Dogac Karaguven ◽  
Berk Guclu ◽  
Tugrul Yildirim ◽  
Alper Kaya ◽  
...  

Purpose. The use of uncemented unicompartmental knee prostheses has recently increased. However, few studies on the outcomes of uncemented unicompartmental knee prostheses have been performed. The purpose of this study was to compare the outcomes of cemented and uncemented Oxford unicompartmental knee arthroplasty.Materials and Methods. This retrospective observational study evaluated the clinical and radiological outcomes of 263 medial Oxford unicompartmental prostheses (141 cemented, 122 uncemented) implanted in 235 patients. The mean follow-up was 42 months in the cemented group and 30 months in the uncemented group.Results. At the last follow-up, there were no significant differences in the clinical results or survival rates between the two groups. However, the operation time in the uncemented unicompartmental knee arthroplasty group was shorter than that in the cemented unicompartmental knee arthroplasty group. In addition, the cost of uncemented arthroplasty was greater.Conclusion. Despite the successful midterm results in the uncemented unicompartmental knee arthroplasty group, a longer follow-up period is required to determine the best fixation mode.


2020 ◽  
Author(s):  
Tao Wen ◽  
Ming Hua Xue ◽  
Tong Ma ◽  
Tao Yang ◽  
Long Xue ◽  
...  

Abstract Background: Currently, the surgical technique and design of surgical instruments for lateral unicompartmental knee arthroplasty (UKA) in treating lateral knee compartment-specific anatomical structures cannot be replicated. Moreover, few articles have reported on the surgical techniques and clinical effects.These have caused most joint surgeons to dare not to carry out this operationinChina.Here, we report on how we perform this procedure in a replicable manner using redesigned tools, and evaluate subsequent American Knee Society scores, range of motion (ROM), and revision rates.Methods: In this retrospective review (January 2014 through January 2016) we identified 158 patients (35 males and 123 females) who had 160 lateral unicompartmental arthroplasties with a minimum of 36 months follow-up (mean 54, range 36–60 months). The initial symptoms of painful osteoarthritis or osteonecrosis were localized to the lateral compartment. The standard of X-slices is mainly limited to the lateral compartment (Ahlbäck grade II OA or worse) while the articular cartilage of the medial compartment shows no obvious clinical or imaging signs of wear. Any valgus deformity must be correctable to reduce varus stress, and any form of inflammatory arthritis is an absolute contra-indication for lateral UKA.Results: At follow-up, American Knee Society scores (0–100 points) averaged 47.3 ± 1.5 for pain, 97.0 ± 1.7 for clinical outcome, and 97.1 ± 4.1 for function, and ROM averaged 125.5 ± 5.3°. None of the patients had reoperations or revisions.Conclusion: These standard surgical techniques and tools are useful to beginners because they can effectively avoid impingement of the femur against the tibial spine eminences and provide good results.


2015 ◽  
Vol 7 (2) ◽  
pp. 199 ◽  
Author(s):  
Kyung Tae Kim ◽  
Song Lee ◽  
Jee Hyoung Kim ◽  
Sung Won Hong ◽  
Woo Shik Jung ◽  
...  

2021 ◽  
Author(s):  
Zhao Guo ◽  
Ligang Qian ◽  
Wenshan Gao ◽  
Yunfei Wang ◽  
Fei Gao ◽  
...  

Abstract BackgroundThe effectiveness of unicompartmental knee arthroplasty by lateral UKA remains poorly characterized as a limit of lateral UKA were operated for osteoarthritis (OA). However, the field of UKA surgery has rapidly expanded the usage of partly knee replacement in KOA patients with increased satisfaction, survivorship and functional outcomes. Methods A meta-analysis was conducted to evaluate the survivorship of lateral UKA with assessment with short-to midterm (<10years) and long-term (>10years) follow-up. Five databases were searched for eligible studies with search terms modified to the instructions of different databases. Twenty-three studies met the inclusion criteria and the pooling data were summarized in forest plots.ResultsThe implant survivorship of lateral UKA in short-term (3 year) was 96% (95%CI, 0.95-0.97, P<0.001), mid-term (5 year) 95% (0.93-0.96, P<0.001), long-term (10 year) 89% (0.85-0.93, P<0.001), and 15 year (85.5%, 0.79-0.92, P<0.001). Sensitivity and subgroup analysis was conducted for potential source of heterogeneity. ConclusionLateral UKA is a promising method of 90% survivorship over a short- to long-term follow up. Lateral UKA is a viable option in primary treatment of OA.


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