Topographic anatomical study of the sciatic nerve relationship to the posterior portal in hip arthroscopy

Revista do Colégio Brasileiro de Cirurgiões

Berliet Assad Gomes¹  Max Rogério Freitas Ramos¹  Rossano Kepler Alvim Fiorelli¹  Camila Rodrigues De Almeida¹  Stênio Karlos Alvim Fiorelli¹ 

关键词: Arthroscopy;    Hip;    Anatomic variation;    Sciatic nerve;    Orthopedics;    Artroscopia;    Quadril;    Variação anatômica;    Nervo ciático;    Ortopedia;   

DOI  :  10.1590/0100-69912014006010

来源: SciELO

【 摘 要 】

Objective: To evaluate the anatomic topographic relation between the sciatic nerve in relation to the piriform muscle and the posterior portal for the establishment of hip arthroscopy.Methods: We dissected 40 hips of 20 corpses of adult Brazilians, 17 male and three female, six black, six brown and eight white. We studied the anatomical relationship between the sciatic nerve and the piriform muscle with their variations and the distance between the lateral edge of the sciatic nerve and the posterior portal used in hip arthroscopy. We then classified the anatomical alterations found in the path of the sciatic nerve on the piriform muscle.Results: Seventeen corpses had bilateral relationship between the sciatic nerve and the piriform muscle, i.e., type A. We found the following anatomical variations: 12.5% of variant type B; and an average distance between the sciatic nerve and the portal for arthroscopy of 2.98cm. One body had type B anatomical variation on the left hip and type A on the right.Conclusion: the making of the posterior arthroscopic portal to the hip joint must be done with careful marking of the trochanter massive; should there be difficult to find it, a small surgical access is recommended. The access point to the portal should not exceed two centimeters towards the posterior superior aspect of the greater trochanter, and must be made with the limb in internal rotation of 15 degrees.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License