Hip Pelvis.  2013 Sep;25(3):182-188. 10.5371/hp.2013.25.3.182.

The Effect of Body Mass Index on Clinical Result and Life Quality after Total Hip Arthroplasty of Patients Who Were Femur Head Avascular Necrosis

• Yim SJ
• Ko TS

• KMID: 1974373
• DOI: http://doi.org/10.5371/hp.2013.25.3.182

Abstract

PURPOSE
This study examined the association between the pre-operative body mass index (BMI) and the post total hip replacement arthroplasty result, as well as postoperative change in the life quality of patients diagnosed with femur head avascular necrosis (AVN).
MATERIALS AND METHODS
Patients diagnosed with femur head AVN undergoing total hiparthroplasty (THA) with a ceramic-ceramic articular surface from March 2005 to May 2011 were analyzed retrospectively. The Harris hip score (HHS), 36-item short-form health survey (SF-36) score, radiological examination, and complications at two years or longer after THA in the 4 groups were analyzed in terms of the BMI (underweight group, normal weight group, overweight group, and obesity group).
RESULTS
The normal body weight group showed the best result(94.36+/-7.51) in all scores but the difference was not significant. In the SF-36 physical scores, obese group showed the greatest improvement. Complications occurred frequently in the underweight(50%) and obese groups(19.5%). In particular, periprosthetic fractures (P=0.002) and pneumonia (P=0.005) occurred frequently in the underweight group.
CONCLUSION
The impacts of obesity and underweight on the clinical outcome after surgery are insignificant but patients with an abnormal BMI can expect a high quality of life after surgery.

Keyword

Femur head necrosis; Total hip arthroplasty; Body mass index; Quality of life; Postoperative complications

MeSH Terms

Arthroplasty
Arthroplasty, Replacement, Hip*
Body Mass Index*
Femur Head Necrosis*
Femur Head
Femur
Health Surveys
Hip*
Humans
Ideal Body Weight
Necrosis
Obesity
Overweight
Periprosthetic Fractures
Pneumonia
Postoperative Complications
Quality of Life*
Retrospective Studies
Thinness
Tacrine

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