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- W2620236213 abstract "Quadriceps and hamstring muscle strength have been shown to predict self-reported knee function, often quantified by the Knee Osteoarthritis Outcome Score (KOOS), in patients with anterior cruciate ligament reconstructed (ACLR) knees. Since up to 60% of these patients experience concomitant meniscal injury it is possible that relationships between muscle function and subjective function may differ based on meniscal involvement. Understanding these relationships may provide greater understanding of determinants of poor subjective function and allow for more individualized treatment strategies to improve outcomes post-ACLR. PURPOSE: To determine predictors of self-reported knee function in ACLR patients with and without concomitant meniscal surgery. METHODS: 97 patients with a primary, unilateral ACLR (age=27±8.7 years, mass = 74.8±16.6 kg, time since surgery=6.8 ± 2.8 mo.) participated near the time of return to unrestricted activity. Patients were separated into 3 groups: ACLR only (n=35), ACLR with meniscectomy (n=29), or ACLR with meniscal repair (n=33). Isokinetic peak knee extension and flexion torque was measured at 180°/sec. Subjective knee function was measured with the KOOS. We performed stepwise multiple linear regression to predict total KOOS score for each ACLR group. Predictors were total work, average power, and peak torque for knee extension and flexion for the involved limb normalized to body mass and as a symmetry index compared to the healthy contralateral limb. Predictors added to the model all had statistically significant R-square change (P < .05). RESULTS: ACLR only: involved knee flexion power explained 25% of the variance in KOOS total score (R2=.251, P=.002). ACLR with meniscal repair: knee extension limb symmetry explained 19% of the variance in KOOS total score (R2=.190, P=.01). ACLR and meniscectomy: the regression model resulted in no predictors of KOOS total score. CONCLUSION: Measures of thigh muscle strength were significant predictors of self-reported outcome in patients with ACLR. Meniscal involvement reduced the overall variance explained in PRO and altered the predictors included. Clinicians should be aware of other factors besides quadriceps and hamstring strength that may influence outcomes post-ACLR, especially in patients with concomitant meniscectomy." @default.
- W2620236213 created "2017-06-05" @default.
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- W2620236213 date "2017-05-01" @default.
- W2620236213 modified "2023-09-27" @default.
- W2620236213 title "Predictors of Outcomes after ACL Reconstruction Differ Based on Meniscus Involvement" @default.
- W2620236213 doi "https://doi.org/10.1249/01.mss.0000518214.51077.a0" @default.
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