4.
Has body composition any effect on THA-scheduled patients’
assessment of their own hip problems? - A preoperative cross-sectional
study.
Anette Liljensøe, Jens Ole Laursen, Kjeld Søballe, Inger Mechlenburg
Orthopaedic Research Unit Aarhus University Hospital; Department of
Orthopaedics, Hospital Southern Jutland; Orthopaedic Research Unit, Aarhus
University Hospital; Orthopaedic Research Unit, Aarhus University Hospital
Background:
The most frequent indication for THA is osteoarthritis (OA).
Obesity is a significant factor for the development of OA. However, the
association between obesity and outcome following THA is ambiguous.
Purpose / Aim of Study:
The purpose of this preoperative cross- sectional
study was to investigate THA- scheduled patients’ demographic
characteristics, and to examine whether there was a correlation between body
composition and the patients’ own assessment of their hip related problems
and quality of life.
Materials and Methods:
Body composition was measured with Dual Energy
X-ray Absorptiometry (DXA) on (in?) 102 patients before THA. In addition,
patients answered hip-specific questionnaire HOOS and patient reported
outcome, SF-36. All examinations were performed from November 2011 to
May 2012. The study population consisted of 54% women and mean age was
70 (41-89)
years. 40% were unskilled workers; 15% were still employed, 8%
disability pensioner and 77% old age pensioner.
Findings / Results:
The mean percentage of fat was 36 (15 -53)% and mean
muscle mass was 48 (31 -73) g/cm2. We found no statistically significant
relationship between body composition and any of the five HOOS subscales:
pain, symptoms, function in daily living, function in sport and recreation, and
hip related quality of life.
Conclusions:
In our preoperative cross-sectional study, we found no
association between the patients’ body composition and their own assessment
of hip problems. This indicates that patients that are overweight and obese do
not rate their own health and quality of life lower than lean patients before
surgery.
