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Effect of Age and Sex on Anterior Cruciate Ligament Functional Tests Approximately 6 Months After Anterior Cruciate
Dai Sugimoto1,2, Matthew D Milewski3,4, Kathryn A Williams5
1Faculty of Sport Sciences, Waseda University, Tokyo, Japan.
Purpose:
To examine age- and sex-related differences in postoperative functional outcomes at approximately 6 months after anterior cruciate ligament reconstruction (ACLR).
Methods:
In this study, patients who underwent primary ACLR performed a series of return-to-sport functional tests at 5 to 8 months after surgery. Functional tests included strength tests (knee extensors, knee flexors, hip abductors, and hip extensors), a balance test (Y-balance composite score), and hop tests (single, triple, crossover, and 6-m timed hop tests). Limb symmetry was calculated to compare the reconstructed limb with the uninvolved limb. A 2-way multivariate analysis of covariance was used, and effect size was calculated for data analysis.
Results:
A total of 176 subjects were included in this study. There were no significant interaction between age and sex on return-to-sport functional tests after ACLR. Also, no main effects of age and sex on return-to-sport functional tests were found in our data.
Conclusions:
Age and sex do not significantly affect functional test performance after ACLR 6 months postoperatively.
Level Of Evidence:
Level III, retrospective review of prospective cohort study.
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