J Korean Orthop Assoc.  2021 Apr;56(2):125-133. 10.4055/jkoa.2021.56.2.125.

Arthroscopic Iliopsoas Tenotomy of Iliopsoas Impingement after Total Hip Arthroplasty

Affiliations
  • 1Department of Orthopaedic Surgery, St. Carollo Hospital, Suncheon, Korea

Abstract

Purpose
The clinical outcomes were investigated to determine if arthroscopic management is a useful method for 19 hips with iliopsoas tendon impingement (IPI) after total hip arthroplasty (THA).
Materials and Methods
Eighteen patients (19 hips), who complained of groin pain and flexion pain that persisted after THA from September 2013 to December 2019, were the subjects of this investigation. The mean time to manifestation after THA was four months (range, 1–9 months) in patients of an average age of 60 years (range, 50–69 years). Thirteen out of 18 patients underwent THA using the direct anterior approach and five by the lateral approach. IPI was diagnosed by the medical history, physical examination, blood test, radiographic examination using X-ray and computed tomography, and topical injection therapy. All patients underwent arthroscopic treatment and a dynamic arthroscopic physical examination after exposure to the iliopsoas tendon revealed impingement. Tenotomy was then performed on the muscle portion through the total tendon portion. Symptoms and pain levels of preoperative, postoperative and follow-up period were investigated and compared.
Results
The Western Ontario and McMaster Universities Osteoarthritis Index score decreased from an average of 58.4 (range, 40–88) before surgery to an average of 35.0 (range, 15–76) after surgery. Similarly, the visual analogue scale decreased from an average of 4.0 (range, 2–6) before surgery to an average of 1.4 (range, 0–4) after surgery. Sixteen patients (88.9%) showed pain relief and improvement in the straight leg raise test, and two patients showed postoperative muscle weakness and sustained pain. In the follow-up period, muscle weakness improved. One patient underwent arthroscopic iliopsoas tenotomy at the lesser trochanteric level but the symptoms persisted. The clinical symptoms were improved after one more tenotomy at the joint level.
Conclusion
Arthroscopic iliopsoas tenotomy performed in patients with IPI after THA showed good clinical results.

Keyword

groin pain; iliopsoas tendon impingement; iliopsoas tendinitis; arthroscopic tenotomy; total hip arthroplasty
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