Document Detail

Obese patients may have more soft tissue impingement following primary total hip arthroplasty.
MedLine Citation:
PMID:  23135350     Owner:  NLM     Status:  MEDLINE    
PURPOSE: Several studies have reported a risk of dislocation in obese patients after total hip arthroplasty. In this study, we evaluated the interaction between obesity and dislocation by kinematic analysis using a navigation system.
METHODS: The intraoperative range of motion (ROM) and postoperative impingement-free ROM were measured in 38 patients, and we compared the impingement-free ROM in obese and non obese patients.
RESULTS: The postoperatively simulated ROM was similar in the obese and non obese groups. The intraoperative ROM was smaller in the obese group. The difference values between the intraoperative ROM and postoperatively simulated ROM were larger in the obese group. These results indicate that obese patients have less ROM following primary total hip arthroplasty even when the implant positioning is performed correctly.
CONCLUSIONS: Dislocations are multifactorial problems including soft tissue impingement. Therefore, the risk of dislocation caused by soft tissue impingement in obese patients may be increased.
Shinya Hayashi; Takayuki Nishiyama; Takaaki Fujishiro; Shingo Hashimoto; Noriyuki Kanzaki; Kotaro Nishida; Masahiro Kurosaka
Publication Detail:
Type:  Comparative Study; Journal Article     Date:  2012-11-08
Journal Detail:
Title:  International orthopaedics     Volume:  36     ISSN:  1432-5195     ISO Abbreviation:  Int Orthop     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2012-11-27     Completed Date:  2013-05-21     Revised Date:  2013-12-04    
Medline Journal Info:
Nlm Unique ID:  7705431     Medline TA:  Int Orthop     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  2419-23     Citation Subset:  IM    
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MeSH Terms
Arthroplasty, Replacement, Hip*
Dislocations / epidemiology*
Femoracetabular Impingement / epidemiology*
Hip Joint / physiology,  surgery
Middle Aged
Obesity / complications*
Range of Motion, Articular / physiology
Risk Factors
Surgery, Computer-Assisted

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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