• Junsuke Nakase, Takeshi Oshima, Yasushi Takata, Kengo Shimozaki, Kazuki Asai, and Hiroyuki Tsuchiya.
• Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takaramachi, Kanazawa, 920-8641, Japan. nakase1007@yahoo.co.jp.
• Arch Orthop Trauma Surg. 2020 Feb 1; 140 (2): 197-202.

PurposeOsgood-Schlatter disease (OSD) is a traction apophysitis of the tibial tuberosity. Patellar tendinopathy and deep infrapatellar bursitis have recently been shown to contribute to pain in patients with OSD. We compared the effects of dextrose injection and saline injection.MethodsWe performed a clinical trial from April 2012 to January 2016 and included 49 knees from 37 boys and 1 girl (mean age, 12.3 ± 1.1 years) for whom conventional conservative therapy for > 1 month was ineffective. They were randomly assigned to receive double-blind injections of 1% lidocaine (1 mL) with 20% dextrose (1 mL; dextrose group) or 1% lidocaine (1 mL) with saline (1 mL; saline group). Injections were administered monthly for 3 months by a single investigator. The Victorian Institute of Sport Assessment (VISA) score was used to evaluate anterior knee pain.ResultsOverall, 43 knees were included; 6 knees were lost to follow-up. The mean pre-injection VISA scores in the dextrose and saline groups were 58.7 ± 18.3 and 63.4 ± 16.4, respectively. No significant differences were found between the two groups at any time point. The mean VISA score before injections significantly increased at the 1-month follow-up in both groups (P < .01). The injection had no adverse effects.ConclusionsWe were not able to show the efficacy of dextrose injections compared to that of saline.Level Of EvidenceRandomized controlled trial. Level I.

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