• Yuki Fujihara, Ai Sakai, Satoshi Niwa, Hideyuki Ota, and Hiroaki Kumagai.
• Department of Orthopaedic and Hand Surgery, Nagoya Ekisaikai Hospital, 4-66 Shonen-Cho, Nakagawa-Ku, Nagoya, 454-8502, Japan. yukifujihara@yahoo.co.jp.
• Arch Orthop Trauma Surg. 2024 May 1; 144 (5): 243724412437-2441.

IntroductionPurulent flexor tenosynovitis (PFT) is a severe condition, and many patients report serious postoperative complications such as amputation, limited range of motion (ROM), or recurrence of symptoms. However, the ideal protocol for PFT treatment remains unknown owing to the limited number of studies. This retrospective cohort study aimed to identify prognostic factors for PFT treatment outcomes.Materials And MethodsSixty-six patients (46 men and 20 women) with PFT who underwent surgical debridement at our hospital between September 2005 and January 2023 were included in this study. We conducted multivariate linear regression analysis with permanent deficit as the primary outcome. We defined the number of operations, laboratory data, interval from onset to debridement, previous conservative treatment, aetiology, Kanavel's signs, and medical history of diabetes mellitus as possible prognostic factors. We also defined the interval from onset to debridement as a secondary outcome and performed logistic regression analysis.ResultsOverall, 25 (38%) patients had postoperative deficits. Longer interval from onset to surgery (odds ratio [OR]: 1.1, 95% confidence interval [CI]: 1.0-1.1) and polymicrobial infection (OR: 7.8, 95% CI: 1.56-38.8) were significant prognostic factors for unfavourable outcomes. Additional multivariate analysis showed that preoperative conservative treatment prolonged the interval to surgery (estimate, 16.4; standard error, 1.6; p < 0.05).ConclusionsThe results of this study suggest that indications for nonoperative treatment of PFT are limited and that earlier surgical debridement is recommended.© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.

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