PDF(Pubmed)
Abstract：
UNASSIGNED: Isolated osteoarthritis of the lateral compartment of the knee is less common than that of the medial compartment, resulting in significantly fewer lateral unicompartmental knee arthroplasties (UKAs) being performed. This study aimed to evaluate results of a fixed-bearing UKA for the treatment of lateral compartment osteoarthritis of the knee.
UNASSIGNED: A prospectively collected cohort of 255 patients undergoing fixed-bearing UKA of the lateral compartment using the Triathlon PKR (Stryker, Warsaw, IND) implant with a minimum 2-year follow-up was reviewed. The Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) score, radiographic alignment, complications, reoperations, and revisions were recorded. Patient factors and pre- and post-surgical alignment were assessed for their association with a minimum important change (MIC) of the total WOMAC score.
UNASSIGNED: A total of 246 implants with a mean follow-up of 6.6 years (2-10.8 years) were included (4% lost to follow-up). The total WOMAC score increased from 61.3 ± 3.5 to 85.3 ± 7.5, exceeding the MIC in 215 patients (88%). Exceeding the MIC was not associated with age, body mass index, or alignment. The 5-year implant revision rate was 1.6% (3/187).
UNASSIGNED: The fixed-bearing Stryker Triathlon PKR implant for lateral UKA resulted in good clinical outcomes with a low revision rate at midterm follow-up. Body mass index, age, and pre- and post-surgical alignment did not correlate with the clinical outcome. Long-term follow-up is necessary to determine if the clinical improvement and low revision rate can be maintained.
UNASSIGNED: A prospectively collected cohort of 255 patients undergoing fixed-bearing UKA of the lateral compartment using the Triathlon PKR (Stryker, Warsaw, IND) implant with a minimum 2-year follow-up was reviewed. The Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) score, radiographic alignment, complications, reoperations, and revisions were recorded. Patient factors and pre- and post-surgical alignment were assessed for their association with a minimum important change (MIC) of the total WOMAC score.
UNASSIGNED: A total of 246 implants with a mean follow-up of 6.6 years (2-10.8 years) were included (4% lost to follow-up). The total WOMAC score increased from 61.3 ± 3.5 to 85.3 ± 7.5, exceeding the MIC in 215 patients (88%). Exceeding the MIC was not associated with age, body mass index, or alignment. The 5-year implant revision rate was 1.6% (3/187).
UNASSIGNED: The fixed-bearing Stryker Triathlon PKR implant for lateral UKA resulted in good clinical outcomes with a low revision rate at midterm follow-up. Body mass index, age, and pre- and post-surgical alignment did not correlate with the clinical outcome. Long-term follow-up is necessary to determine if the clinical improvement and low revision rate can be maintained.
摘要：
■膝关节外侧隔室的孤立性骨关节炎不如内侧隔室的孤立性骨关节炎，导致外侧单室膝关节置换术（UKAs）明显减少。这项研究旨在评估固定轴承UKA治疗膝关节外侧间室骨关节炎的结果。
■一项前瞻性收集的队列，包括255名使用铁人三项PKR进行侧室固定轴承UKA的患者（Stryker，华沙,对至少2年随访的IND）植入物进行了审查。西安大略省和麦克马斯特大学骨关节炎指数（WOMAC）评分，射线照相校准，并发症,重新操作,并记录了修订。评估患者因素以及手术前后对齐与WOMAC总分的最小重要变化（MIC）的相关性。
■总共包括246个植入物，平均随访6.6年（2-10.8年）（4％的随访损失）。WOMAC总分从61.3±3.5增加到85.3±7.5，超过215例患者的MIC（88％）。超过MIC与年龄无关，身体质量指数,或对齐。5年植入物翻修率为1.6％（3/187）。
■用于外侧UKA的固定轴承Stryker铁人三项PKR植入物在中期随访中具有较低的翻修率，具有良好的临床效果。身体质量指数,年龄,术前和术后排列与临床结局无关.需要长期随访以确定是否可以维持临床改善和低修订率。
■一项前瞻性收集的队列，包括255名使用铁人三项PKR进行侧室固定轴承UKA的患者（Stryker，华沙,对至少2年随访的IND）植入物进行了审查。西安大略省和麦克马斯特大学骨关节炎指数（WOMAC）评分，射线照相校准，并发症,重新操作,并记录了修订。评估患者因素以及手术前后对齐与WOMAC总分的最小重要变化（MIC）的相关性。
■总共包括246个植入物，平均随访6.6年（2-10.8年）（4％的随访损失）。WOMAC总分从61.3±3.5增加到85.3±7.5，超过215例患者的MIC（88％）。超过MIC与年龄无关，身体质量指数,或对齐。5年植入物翻修率为1.6％（3/187）。
■用于外侧UKA的固定轴承Stryker铁人三项PKR植入物在中期随访中具有较低的翻修率，具有良好的临床效果。身体质量指数,年龄,术前和术后排列与临床结局无关.需要长期随访以确定是否可以维持临床改善和低修订率。
