Gunay H.Sozbilen M.C.Altınisik M.Kacmaz I.E.Kaya Bicer E.2019-10-272019-10-2720170256-7040https://doi.org/10.1007/s00381-016-3283-zhttps://hdl.handle.net/11454/25493Aim: We aimed to evaluate the influence of the lesion level and acetabular displasia on the progression of hip dislocation in patients with spina bifida. Material and method: Two hundred twelve hips of 106 cases with spina bifida were evaluated both clinically and radiologically. Their vertebral level of lesions, clinical examinations, radiological migration index, and acetabulum terms were noted and were evaluated in terms of their relations with the level of lesion-migration and dysplasia. Data analysis method was evaluated using SPSS 22.0 program. Results: Deficiency of acetabulum was present in 33 % of the cases with spina bifida. Dysplastic floor was found to be as equally important as the level of lesion in the progression of hip dislocation (p = 0.002). Progression and dislocation incidences were observed to be higher in the thoracic level (p = 0.008). Reimer’s progression index was seen to be a reliable way of assesment. Conclusion: The development of hip dislocation and progression are not solely connected with muscle imbalance. Encountered more frequently in these cases, acetabular dysplasia is a factor that is as important as the level of lesion in the formation of hip dislocation and progression. Hip dislocation is associated with more progression in the higher level lesions. Reimer’s index is a reliable assessment criteria. © 2016, Springer-Verlag Berlin Heidelberg.en10.1007/s00381-016-3283-zinfo:eu-repo/semantics/closedAccessAcetabular indexHip dislocationMeningomyeloceleReimer’s migration indexSpina bifidaArticle33230731227787650Q2