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100 MRI VERIFIED ACETABULAR LABRAL TEARS FOLLOWED FOR FOUR YEARS: CONSERVATIVE AND OPERATIVE TREATMENT

7th Congress of the European Federation of National Associations of Orthopaedics and Traumatology, Lisbon - 4-7 June, 2005



Abstract

Introduction: Hip pain in young adults can be associated with radiographic finding of acetabular labral tears in magnetic resonance arthrography. Acetabular labral tears can occur in dysplastic hips and in arthrotic hips as well, but often no comobidity is found. Up to now there is no prospective study published following patients with magnetic resonance arthrography verified acetabular labral tears over time and re-evaluating them with MR years later. There is also no stage related therapy published according to labral damage.

The aim of this study was to follow 100 MRI verified acetabular labral tears for four years.

Material and methods: Study design was prospective, observers were blinded. At primary investigation 36 clinical and 30 radiological parameters were recorded. At follow up these factors were recorded again and additionally SF36 and Harris Hip score were recorded.

Results: 100 patients with average age 42 were included. 91% of all patients could be followed for over 48 months. 55 operations were performed in 50 patients . 20 patients showed concomitant developmental dysplasia of the hip, 16 patients arthrosis, 40 patients both and 15 patients had a labral lesion alone. The last group of patients never required any operation. 28 patients had a labral lesion grade I, 29 grade II, 34 grade III. Patients with grade III lesions had a significantly lower HHS at the first examination.

At follow up between all groups of patients no difference regarding any clinical parameter was found. Operations were only necessary if comorbidity (dysplasia or arthrosis) was found. No single radiologic or clinical parameter could predict operation. Nine of thirteen labral surgeries were revised (triple osteotomies or THR). No correlation between severity of labral lesion at first MRI and any parameter at follow up could be found.

Conclusion: If no comorbidity was found an acetabular labral tear alone never needed operative treatment. Although there exist a series of different operative treatment opportunities in meniscal/glenoid labrum surgery , we could not find the need for surgical intervention if the acetabular labral tear occurs alone. We therefore recommend physiotherapy and non – operative treatment for these patients.

Theses abstracts were prepared by Professor Roger Lemaire. Correspondence should be addressed to EFORT Central Office, Freihofstrasse 22, CH-8700 Küsnacht, Switzerland.