Pelvic tilt after total hip arthroplasty in patients with osteoarthritis of the hip.
hip–spine syndrome
lower limbs discrepancy
osteoarthritis of the hip
sagittal spinal alignment
total hip arthroplasty
Journal
Journal of orthopaedic surgery (Hong Kong)
ISSN: 2309-4990
Titre abrégé: J Orthop Surg (Hong Kong)
Pays: England
ID NLM: 9440382
Informations de publication
Date de publication:
Historique:
entrez:
25
4
2020
pubmed:
25
4
2020
medline:
9
3
2021
Statut:
ppublish
Résumé
It is important to understand postoperative global sagittal spinal alignment after total hip arthroplasty (THA) to prevent not only the following hip complications but also progressing lumbar degeneration. The purpose of this study was to progress the analysis of the global sagittal spinal alignment between before and after THA in patients without large lower limbs discrepancy. The subjects were 87 patients with bilateral hip osteoarthritis (OA) before unilateral primary THA. We measured sagittal vertical axis (SVA), lumbar lordotic angle, sacral slope, pelvic tilt (PT), and pelvic incidence (PI) and compared the postoperative change of those parameters. Excluded criteria were Crowe classification types II, III, and IV and more than 10 mm of leg length difference, spinal scoliosis (Cobb angle > 25°), and lumbar kyphosis. The correlation coefficient between preoperative factors and postoperative sagittal alignments revealed that postoperative SVA has correlation with age ( (1) In patient with hip OA without large lower limbs discrepancy, the postoperative PT after THA correlated with PI. (2) The postoperative change of PT was influenced by preoperative PT.
Sections du résumé
BACKGROUND
It is important to understand postoperative global sagittal spinal alignment after total hip arthroplasty (THA) to prevent not only the following hip complications but also progressing lumbar degeneration. The purpose of this study was to progress the analysis of the global sagittal spinal alignment between before and after THA in patients without large lower limbs discrepancy.
SUBJECTS AND METHODS
The subjects were 87 patients with bilateral hip osteoarthritis (OA) before unilateral primary THA. We measured sagittal vertical axis (SVA), lumbar lordotic angle, sacral slope, pelvic tilt (PT), and pelvic incidence (PI) and compared the postoperative change of those parameters. Excluded criteria were Crowe classification types II, III, and IV and more than 10 mm of leg length difference, spinal scoliosis (Cobb angle > 25°), and lumbar kyphosis.
RESULTS
The correlation coefficient between preoperative factors and postoperative sagittal alignments revealed that postoperative SVA has correlation with age (
CONCLUSION
(1) In patient with hip OA without large lower limbs discrepancy, the postoperative PT after THA correlated with PI. (2) The postoperative change of PT was influenced by preoperative PT.
Identifiants
pubmed: 32329384
doi: 10.1177/2309499020918317
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM