LAUSR

Introduction/Background Treatments of Dupuytren's disease are currently not aetiological but symptomatic. They aim at reducing the flexion contracture of fingers and improving hand function, without excluding the possibility of recurrence. Percutaneous needle aponeurotomy (PNA) can be used as an iterative treatment for repeated recurrences. However, it has only been assessed as a unique therapeutic sequence and its long-term functional results have not been described. The aim of the study was to assess functional results of iterative PNA for Dupuytren's disease at 5-year follow-up. Material and method Patients with digital flexion contracture due to Dupuytren's disease were prospectively included and treated using PNA. Iterative treatment was performed as necessary during the follow-up. Assessment criteria were Tubiana score at 1 month, URAM functional score at 1-month and 5 years, satisfaction and need of second line open surgery at 5 years. Primary outcome was URAM functional score at 5 years in patients who did not undergo second line open surgery at follow-up. Results Thirty patients were included: age 72 ± 10, ratio Female/Male 0.2, diabetes 3, Tubiana score 7 ± 3, URAM score 13 ± 10. Three sessions of PNA were performed per patient in mean at 5-year follow-up. Two adverse events were observed: skin fissure recovering in one week (1 case), digital paresthesia recovering in 2 years (1 case). PNA reduced flexion contracture (Tubiana 2 ± 3, range 0–13, n = 30, P  Conclusion Iterative PNA is safe, reduces flexion contracture and improves hand function in patients with Dupuyren's disease. Functional improvement persists at 5 years in 90% of cases. Only 10% require second line open surgery.