Subspine Impingement of the Hip Secondary to Ossified Rectus Femoris Avulsion Injury

Abstract

This case report describes the evaluation, surgical intervention, and postoperative outcome of a 36-year-old male patient with chronic left hip pain following a rectus femoris injury which persisted despite conservative management and intra-articular steroid injection. Imaging revealed prominent ossification extending from the anterior inferior iliac spine at the proximal rectus femoris insertional, a femoral cam lesion, and tearing of the superior through anterior labrum, compatible with both subspine and femoroacetabular impingement. Subsequent arthroscopic femoroplasty, acetabuloplasty, labral repair, and excision of rectus femoris ossification provided lasting symptomatic relief. Identification of lesions resulting in subspine impingement is essential in the preoperative work up of patients with hip pain to ensure appropriate surgical management and optimize postoperative outcomes.

Keywords

• Labral tear
• Femoroacetabular impingement
• Subspine impingement
• Cam lesion
• Pincer lesion
• Rectus femoris avulsion