Ischiofemoral Impingement Syndrome: Outcomes of Endoscopic Resection of the Lesser Trochanter

Abstract

Ischiofemoral impingement syndrome is a rare clinical entity characterized by chronic groin, buttock or hip pain associated with radiographic evidence of narrowing of the space between the lesser femoral trochanter and the ischial tuberosity. Introduction of magnetic resonance imaging to the clinical practice as well as the establishment of the radiological definition of the abnormal ischiofemoral distance has led to an increasing interest in this condition. Ischiofemoral impingement syndrome is a poorly understood disorder of chronic pain, especially regarding its treatment. The authors present two cases of primary ischiofemoral impingement syndrome successfully treated with a minimally invasive surgical technique. With this endoscopic technique, it was possible to resect the lesser trochanter and restore the ischiofemoral space. Immediate clinical and functional improvement was reported by both patients.

Treatment strategies for ischiofemoral impingement: a systematic review

“…Her seated hip flexion strength was 5-/5. The post-operative iHOT score was 85 Hernandez et al [ 12 ] 2017 Spain 4 0 2 2 6 months 43.5 42–45 Complaint of progressive, bilateral, posterior buttock pain with distal neuropathic pain radiation. On physical examination, the patient had tenderness to palpation of the ischiofemoral space and a positive long-stride walking test.…”

Normal Ischiofemoral Distance and Its Associated Factors: Computed Tomography–Based Study

“…1 Since then, several authors reported this type of impingement in patients who had no history of hip surgery or trauma. [10][11][12] Most studies described MRI signal change of the quadratus femoris muscle and narrowing of the ischiofemoral space on a limited number of patients. 4,6,13 Torriani et al 6 reviewed MRI of 12 hips in 9 women with posterior hip pain and abnormal MRI signal intensity of the quadratus femoris muscle.…”

Bilateral Ischiofemoral Impingement - Case Report and Surgical Technique of Endoscopic Treatment with Lesser Trochanter Partial Resection

“…At 2 years follow-up all patients present eda significant improvement in functional scores and in VAS, being pain free [12]. Hernandez, et al [14] described the results of 2 patients with IFIS who underwent surgery with endoscopic total resection of the lesser tuberosity using the Ilizaliturri and Camacho-Galindo [15] technique. Howse, et al [16] published an endoscopic technique similar to the technique we present.…”