Should ultrasound-guided needle fenestration be considered as a treatment option for recalcitrant patellar tendinopathy? A retrospective study of 47 cases.

Objective: To report the retrospective results of ultrasound-guided needle fenestration for the treatment of recalcitrant patellar tendinopathy.

Design: Retrospective follow-up study.

Setting: University outpatient sports medicine clinic.