Abstract
PurposeThis study aimed to investigate the rate at which patients returned to sports after open wedge high tibial osteotomy and identify the continuity of sports activity post-operatively.MethodsThirty-five patients (40 knees) who underwent open-wedge high tibial osteotomy (OW-HTO) in medial knee osteoarthritis were included in this study. The mean age of the patients who underwent surgery was 55.1 ± 10.7 years, and the mean follow-up period was 41.0 ± 24.7 months. Clinical results and radiographic parameters calculated in standing whole-leg radiographs preoperatively, post-operatively, and at the final follow-up were evaluated.ResultsThirty-one patients (88.6%) were able to return to preoperative sports activity; however, only 14 patients (40.0%) completely returned to preoperative sports activity levels. Of the 31 patients who returned to sports activity, 10 patients (32.3%) maintained post-operative sporting activity levels at the final follow-up. In radiographic parameters, the weight-bearing line ratio was considered loss of correction in the post-operative period leading to the final follow-up. Patients who completely returned to sports and maintained sporting activity levels at the final follow-up had significantly higher the Knee Injury and Osteoarthritis Outcome Score pain subscale values and lower visual analogue scale of knee pain at pre-surgery and final follow-up than other patients, including those who partially returned to sports.ConclusionsThe proportion of patients who returned to sports after OW-HTO and were able to participate in competitions at the same activity level as before surgery was low and insufficient.Level of evidenceRetrospective case series, IV
Highlights
The treatment of knee osteoarthritis (OA) is based on the patients’ age, body mass index (BMI), OA severity, and ligament status
All statistical analyses were performed with EZR (Saitama Medical Centre, Jichi Medical University, http://www.jichi.ac.jp/saitama-sct/SaitamaHP.files/statmedEN.html;Kanda, 2012), which is Return to sports activity Of the 35 patients who participated in sports preoperatively, 31 patients (88.6%) were able to return to previous sporting activities
Of the 31 patients who returned to sports, 10 patients (32.3%) maintained post-operative sporting activity levels at the final follow-up (Group C)
Summary
The treatment of knee osteoarthritis (OA) is based on the patients’ age, body mass index (BMI), OA severity, and ligament status. Young active patients with knee OA have high functional demands and expect to return to sports. OW-HTO allows patients to participate in high-impact sports following surgery because it retains the natural joint structure [13, 14, 16]. Details of patients’ activities after HTO, such as the sports they can play or are currently playing, as well as whether joint deformation progresses due to sports activities are largely unclear. This study aimed to investigate the rate at which patients returned to sports after OW-HTO and identify the continuity of sports activity post-operatively. We investigated the hypothesis that patients who underwent OW-HTO for medial OA have a high probability of returning to sports activities and maintaining their activity level
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