Journal
INDIAN JOURNAL OF ORTHOPAEDICS
Volume 56, Issue 2, Pages 295-302Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s43465-021-00481-8
Keywords
Hip labral tear; Arthroscopy; Femoroacetabular impingement; Developmental dysplasia of the hip; Clinical results
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The study revealed a relationship between different morphological labral tears and clinical features in hip arthroscopy patients. Specifically, younger males with FAI tend to show better clinical outcomes in the FL group. The findings provide predictive information for hip arthroscopists regarding patient demographics and outcomes.
Purpose To evaluate the relationship between morphological differences in labral tears and clinical features of the hip joint in patients who underwent hip arthroscopy. Materials and Methods We retrospectively analyzed data from patients who underwent arthroscopic surgery for the treatment of labral tears. Hip labral tears were morphologically classified as longitudinal peripheral tears (group L), radial fibrillated tears (group FI), radial flaps (group FL), and an unstable labrum (group U). Radiographically, the center-edge angle, acetabular roof obliquity, vertical-center-anterior angle, alpha angle, femoral head-neck offset ratio, and crossover sign were evaluated and compared among the groups. The relationship between labral morphology and these radiographic findings, as well as clinical findings, such as age, gender, preoperative range of hip motion, and the clinical outcomes using modified Harris Hip Score (mHHS) were also examined. Results This study included fifty patients. Groups L and FI were often observed in late middle-aged patients with relatively shallow acetabular coverage. Group FL tears were frequently observed in young males with radiographic features, such as femoroacetabular impingement (FAI), compared to the other groups. Group U comprised mostly young females with relatively shallow acetabular coverage compared to the other groups. For the postoperative mHHS, group FL showed the best score among all groups, with a significant difference between groups FL and FI (p = 0.034). Conclusions Our study revealed that morphologically, different labral tears were associated with different clinical features and radiological findings. Especially, our study can provide predictive findings for hip arthroscopists that younger males with FAI show better clinical outcomes when compared to middle-aged females with shallow acetabulum, which is indicative of degenerative hip labral tears.
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