Abstract：
OBJECTIVE: The purpose of this study was to compare clinical outcomes of medial quadriceps tendon-femoral ligament reconstruction (MQTFLR) and medial patellofemoral ligament reconstruction (MPFLR) among patients with recurrent lateral patellar instability.
METHODS: A retrospective matched-cohort study was conducted involving patients who underwent MQTFLR or MPFLR with or without tibial tubercle osteotomy (TTO) from 2019 to 2021. Subjects were matched 1:1 on age, concomitant osteochondral allograft (OCA), concomitant TTO, and follow-up time. Measured outcomes included 90-day complications, Visual Analog Scale (VAS) knee pain, return to sport/work, Kujala score, Tegner score, and MPFL-Return to Sport after Injury (MPFL-RSI) score. Outcomes were compared between groups using Mann-Whitney U-test for continuous variables and Fisher\'s exact test for categorical variables. P-values <0.05 were considered significant.
RESULTS: Ten MQTFLR patients (mean age 28.7 years, 80% female, mean follow-up 19.7 months) and ten MPFLR patients (mean age 29.1 years, 90% female, mean follow-up 28.3 months) were included in the study. One MQTFLR patient (10%) and three MPFLR patients (30%) underwent reoperation for postoperative arthrofibrosis. Postoperative VAS resting pain was not significantly different between the groups (MQTFLR mean 1.1, MPFLR mean 0.6, p = 0.31). There were no significant differences in rates of recurrent subluxations (MQTFLR 20%, MPFLR 0%, p = 0.47), return to sport (MQTFLR 50%, MPFLR 75%, p = 0.61), return to work (MQTFLR 100%, MPFLR 88%, p = 1.00), or MPFL-RSI pass rate (MQTFLR 75% vs. MPFLR 38%, p = 0.31).
CONCLUSIONS: There were no significant differences in knee pain and function, return to work, and rates of recurrent patellar instability between patients who underwent MQTFLR versus MPFLR, though these results should be interpreted with caution given the small sample size and potential selection bias.
METHODS: III.
METHODS: A retrospective matched-cohort study was conducted involving patients who underwent MQTFLR or MPFLR with or without tibial tubercle osteotomy (TTO) from 2019 to 2021. Subjects were matched 1:1 on age, concomitant osteochondral allograft (OCA), concomitant TTO, and follow-up time. Measured outcomes included 90-day complications, Visual Analog Scale (VAS) knee pain, return to sport/work, Kujala score, Tegner score, and MPFL-Return to Sport after Injury (MPFL-RSI) score. Outcomes were compared between groups using Mann-Whitney U-test for continuous variables and Fisher\'s exact test for categorical variables. P-values <0.05 were considered significant.
RESULTS: Ten MQTFLR patients (mean age 28.7 years, 80% female, mean follow-up 19.7 months) and ten MPFLR patients (mean age 29.1 years, 90% female, mean follow-up 28.3 months) were included in the study. One MQTFLR patient (10%) and three MPFLR patients (30%) underwent reoperation for postoperative arthrofibrosis. Postoperative VAS resting pain was not significantly different between the groups (MQTFLR mean 1.1, MPFLR mean 0.6, p = 0.31). There were no significant differences in rates of recurrent subluxations (MQTFLR 20%, MPFLR 0%, p = 0.47), return to sport (MQTFLR 50%, MPFLR 75%, p = 0.61), return to work (MQTFLR 100%, MPFLR 88%, p = 1.00), or MPFL-RSI pass rate (MQTFLR 75% vs. MPFLR 38%, p = 0.31).
CONCLUSIONS: There were no significant differences in knee pain and function, return to work, and rates of recurrent patellar instability between patients who underwent MQTFLR versus MPFLR, though these results should be interpreted with caution given the small sample size and potential selection bias.
METHODS: III.
摘要：
目的：本研究的目的是比较内侧股四头肌腱-股韧带重建(MQTFLR)和内侧髌股韧带重建(MPFLR)在复发性髌骨外侧不稳定患者中的临床效果。
方法：进行了一项回顾性配对队列研究，纳入2019-2021年接受MQTFLR或MPFLR伴或不伴胫骨结节截骨术(TTO)的患者。受试者在年龄上1:1匹配，伴随骨软骨同种异体移植（OCA），伴随的TTO，和后续时间。测量结果包括90天并发症，视觉模拟量表（VAS）膝关节疼痛，回到运动/工作，Kujala得分,Tegner得分,和MPFL-受伤后重返运动（MPFL-RSI）评分。使用Mann-WhitneyU检验对连续变量和Fisher精确检验对分类变量进行组间比较结果。P值<0.05被认为是显著的。
结果：10名MQTFLR患者（平均年龄28.7岁，80%女性,平均随访19.7个月)和10例MPFLR患者(平均年龄29.1岁，90%是女性,平均随访28.3个月)纳入研究。一名MQTFLR患者（10％）和三名MPFLR患者（30％）因术后关节纤维化而接受了再次手术。术后VAS静息疼痛组间无显著差异(MQTFLR均值1.1,MPFLR均值0.6,p=0.31)。复发性半脱位的发生率没有显着差异（MQTFLR20％，MPFLR0%,p=0.47),回归运动(MQTFLR50%，MPFLR75%,p=0.61)，返回工作(MQTFLR100%，MPFLR88%,p=1.00),或MPFL-RSI通过率(MQTFLR75%与MPFLR38%,p=0.31）。
结论：膝关节疼痛和功能无显著差异，重返工作岗位,以及接受MQTFLR和MPFLR的患者之间的复发性髌骨不稳定率，尽管考虑到小样本量和潜在的选择偏差，这些结果应谨慎解释。
方法：III.
方法：进行了一项回顾性配对队列研究，纳入2019-2021年接受MQTFLR或MPFLR伴或不伴胫骨结节截骨术(TTO)的患者。受试者在年龄上1:1匹配，伴随骨软骨同种异体移植（OCA），伴随的TTO，和后续时间。测量结果包括90天并发症，视觉模拟量表（VAS）膝关节疼痛，回到运动/工作，Kujala得分,Tegner得分,和MPFL-受伤后重返运动（MPFL-RSI）评分。使用Mann-WhitneyU检验对连续变量和Fisher精确检验对分类变量进行组间比较结果。P值<0.05被认为是显著的。
结果：10名MQTFLR患者（平均年龄28.7岁，80%女性,平均随访19.7个月)和10例MPFLR患者(平均年龄29.1岁，90%是女性,平均随访28.3个月)纳入研究。一名MQTFLR患者（10％）和三名MPFLR患者（30％）因术后关节纤维化而接受了再次手术。术后VAS静息疼痛组间无显著差异(MQTFLR均值1.1,MPFLR均值0.6,p=0.31)。复发性半脱位的发生率没有显着差异（MQTFLR20％，MPFLR0%,p=0.47),回归运动(MQTFLR50%，MPFLR75%,p=0.61)，返回工作(MQTFLR100%，MPFLR88%,p=1.00),或MPFL-RSI通过率(MQTFLR75%与MPFLR38%,p=0.31）。
结论：膝关节疼痛和功能无显著差异，重返工作岗位,以及接受MQTFLR和MPFLR的患者之间的复发性髌骨不稳定率，尽管考虑到小样本量和潜在的选择偏差，这些结果应谨慎解释。
方法：III.
