Leg length measures appear inaccurate in the early phase following total hip arthroplasty.
Aged
Arthroplasty, Replacement, Hip
/ methods
Female
Femur
/ surgery
Humans
Leg
/ anatomy & histology
Leg Length Inequality
/ diagnostic imaging
Male
Middle Aged
Minimally Invasive Surgical Procedures
Observer Variation
Postoperative Complications
Postoperative Period
Prospective Studies
Radiography
/ standards
Reproducibility of Results
Time Factors
Treatment Outcome
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
01 12 2021
01 12 2021
Historique:
received:
11
08
2021
accepted:
15
11
2021
entrez:
2
12
2021
pubmed:
3
12
2021
medline:
27
1
2022
Statut:
epublish
Résumé
The aims of this study were to (1) assess reliability of leg length discrepancy (LLD) measurements at different anatomical landmarks, (2) longitudinally investigate LLD in patients within the first year following total hip arthroplasty (THA) and to (3) correlate changes in LLD with functional outcome. Ninety-nine patients with short stem THA (53.3% males, mean age: 61.0 ± 8.1 years) were prospectively included. Upright pelvic anteroposterior (a.p.) radiographs taken at 6 timepoints (preoperatively, discharge, 6, 12, 24, 52 weeks postoperatively) were used to assess LLD at 5 anatomical landmarks (iliac crest, upper sacroiliac joint, lower sacroiliac joint, tear drop figure, greater trochanter). WOMAC and Harris Hip Score (HHS) were obtained preoperatively and at 6 and 52 weeks. LLD measures significantly increased in the initial phase following THA, from discharge to 6 weeks postoperatively and remained constant thereafter. Documentation of LLDs is dependent on measurement site: LLDs varied significantly between trochanter and iliac crest to tear drop figure (p < 0.001). Functional assessments did not correlate with the occurrence of LLDs [WOMAC (p = 0.252); HHS (p = 0.798)]. Radiographic assessment of LLD following THA may not be performed early postoperatively, as measurements appear to inaccurately reflect actual LLDs at this time, potentially due incomplete leg extension and/or inhibited weight-bearing.
Identifiants
pubmed: 34853409
doi: 10.1038/s41598-021-02684-3
pii: 10.1038/s41598-021-02684-3
pmc: PMC8636479
doi:
Types de publication
Journal Article
Observational Study
Langues
eng
Sous-ensembles de citation
IM
Pagination
23262Informations de copyright
© 2021. The Author(s).
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