Abstract
We studied the clinical effects of sodium hyaluronate (HA) on patients treated with high tibial osteotomy (HTO). Nine knees from 9 patients with osteoarthritis (OA) were selected randomly as a case group, and were injected with HA into the affected knee inter-articularly once a week for five weeks after HTO (HA group). Nine knees from 9 patients with OA of the knee without HA injection were selected as a control group (non-HA group). Controls were matched to cases for age, body weight, range of motion (ROM) and JOA score before HTO. ROM at five weeks and one year after HTO, and JOA score at one year after HTO were compared between the two groups. ROM at five weeks for HA group and non-HA group (118° and 93°, respectively) reached statistical significance (P<0.03). ROM at one year for HA group and non-HA group were 134° and 132°, respectively without statistical significance. JOA score at one year for HA group and non-HA group were 82 and 86, respectively without statistical significance. Intra-articular injection of HA after HTO is effective on the early achievement of full ROM.
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