ArticleJournal of hand surgery global online2026
A Sutureless Approach to Nerve Repair: Results From a Clinical Study in Digital Nerves.
Article in Journal of hand surgery global online, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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4 authors.
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Abstract
Purpose: Traditional microsurgical suture neurorrhaphy presents challenges such as fascicular trauma, scar formation, and variability in repair quality. This clinical study evaluates the safety and efficacy of a bioresorbable poly(glycerol sebacate) acrylate (PGSA) polymer-assisted device in digital nerve repair without sutures. Methods: A single-arm clinical trial enrolled 12 patients with digital nerve injuries at two centers. The repair involved securing severed nerve ends within a 3-dimensional printed PGSA coaptation chamber using a light-activated PGSA polymer. Patients were prospectively followed for 12 months with assessments including pain (visual analog scale pain score), sensory recovery (Semmes-Weinstein Monofilament and two-point discrimination), patient-reported outcomes (Impact of Hand Nerve Disorders Questionnaire v2.0), and high-resolution ultrasound imaging. Results: At 12 months, 10 patients who completed the study had a Semmes-Weinstein Monofilament score of 0.4 ("diminished light touch") or better, with 100% achieving "Good" (S3+) or "Excellent" (S4) two-point discrimination scores. No patient reported pain at 12 months, and no device-related complications were recorded. Ultrasound confirmed intact repairs with no neuroma formation. All patients returned to work at a median time of 41.5 days. Conclusions: Results from this study support the concept of sutureless repair of severed digital nerves using the PGSA polymer-assisted coaptation device by demonstrating that the PGSA polymer-assisted coaptation is safe, effective, and may be considered as an option for nerve approximation. Clinical relevance: These findings support the potential for broader clinical applications of polymer-assisted sutureless nerve repair.
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