Pelvic morphology medial to the femoral head center predicts anterior coverage and range of motion after curved periacetabular osteotomy.
anterior coverage
curved periacetabular osteotomy
femoroacetabular impingement
range of motion
Journal
Journal of orthopaedic research : official publication of the Orthopaedic Research Society
ISSN: 1554-527X
Titre abrégé: J Orthop Res
Pays: United States
ID NLM: 8404726
Informations de publication
Date de publication:
09 2020
09 2020
Historique:
received:
08
10
2019
accepted:
30
01
2020
pubmed:
9
2
2020
medline:
15
12
2020
entrez:
9
2
2020
Statut:
ppublish
Résumé
This study observed anterior coverage extent after lateral rotation of the acetabulum, without anterior or posterior rotation, during curved periacetabular osteotomy by three-dimensional simulation, and determined if preoperative pelvic morphology affects postoperative anterior coverage and range of motion. Thirty patients scheduled for consecutive primary curved periacetabular osteotomy for developmental hip dysplasia at our hospital between 2016 and 2017 were included. Virtual acetabular osteotomies were performed to achieve a postoperative lateral center-edge angle of 30°. We measured anterior center-edge angles before curved periacetabular osteotomy through the medial one-third and one-quarter of the femoral head as an index reflecting the pelvic morphology medial to the femoral head center. The range of motion simulation was performed after virtual curved periacetabular osteotomy. Single linear regression analysis was performed to examine correlations between preoperative pelvic morphology parameters and anterior center-edge angles after virtual osteotomy. Furthermore, linear regression analysis was used to assess correlations between center-edge angles and simulated range of motions (P < .05). Anterior center-edge angle after virtual osteotomy was more strongly correlated with the anterior center-edge angle through the medial one-third (r = .92, P < .0001) and one-quarter (r = .84, P < .0001) of the femoral head. Flexion angle and internal rotation at 90° flexion showed significant correlations with anterior center-edge angle through the medial one-third (r = -.62, P = .0003; r = -.57, P = .001) and one-quarter (r = -.60, P = .0005; r = -.55, P = .002) of the femoral head and anterior center-edge angle after virtual osteotomy (r = -.67, P = .0005; r = -.62, P = .0003). Measuring preoperative parameters reflecting pelvic morphology enables surgeons to predict postoperative anterior coverage and range of motion in curved periacetabular osteotomy cases.
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
2031-2039Informations de copyright
© 2020 Orthopaedic Research Society. Published by Wiley Periodicals, Inc.
Références
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