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Orthopaedic Proceedings
Vol. 85-B, Issue SUPP_III | Pages 257 - 257
1 Mar 2003
Muratl H Bicimoglu A Tabak A Yagmurlu M Celebi L Pakel
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We aimed to determine if there are mechanoreceptors in hip joint capsule and ligamentum capitis femoris of the patients with developmental dysplasia of the hip. We took capsule and ligamentum capitis femoris biopsies from 20 hips of 20 patients who were operated because of developmental dysplasia of the hip. Meanage was 10.2 months (ranges 6-20 months) on the time of surgery. There were 12 girls and 8 boys. Teratologic and secondary hip dislocations were not included in this study. 0.5x 0.5 cm full thickness anterior capsule and liga-mentum capitis femoris portions were taken for biopsy specimen. Specimens were stained with hemotoxylin eosin and examined immunohistochemically using poly-clonal antibodyagainst S-100 Protein. In both analysis no mechanoreceptors was found in any samples of capsule and ligamentum capitis femoris.

Conclusion: We think that there is a possibility that developmental dysplasia of the hip can be caused from a defect in formation of mechanoreceptors on localized capsule and ligamentum capitis femoris and we emphasize the need for further studies on the subject.