Original articleThe Difference Between Actual and Prescribed Weight Bearing of Total Hip Patients With a Trochanteric Osteotomy: Long-Term Vertical Force Measurements Inside and Outside the Hospital
Section snippets
Patient Population
Between August 2002 and October 2004, 145 consecutive patients received a primary unilateral THA with trochanteric osteotomy for the treatment of osteoarthritis of the hip at the orthopedic departments of 2 hospitals participating in this study. All patients between the age of 40 and 80 years and from whom a written informed consent was obtained were included in the study. Exclusion criteria were: medical conditions or social problems whereby patients could not perform or could not be
Patient Characteristics
Fifty patients participated in the study of which 33 patients performed PWB with a target load of 10% BW and 17 patients with a target load of 50% BW (fig 2). Patient characteristics are presented in table 1. Age was significantly higher (t48=2.3, P=.026) and body weight was significantly lower (t48=−1.2, P=.023) in the 10% target group compared with the 50% target group. When looking at men and women separately, these factors did not differ significantly between the 2 target groups. The 10%
Discussion
The present study evaluated PWB of patients with a THA and trochanteric osteotomy during their postoperative recovery by measuring the actual load during walking with a validated insole pressure system over a 5-hour period in the hospital and at home and comparing it with 2 instructed target loads in 3 conditions.
In this study, we found that 55% of the patients did not load their operated leg at the prescribed target load during their recovery when walking with (condition 1) or without
Conclusions
PWB at a specific target load was not achieved by patients with a THA when given verbal instructions. Especially when using a low target load and when walking at home with no supervision of a physical therapist, patients loaded the operated leg higher and more frequently above the target load. When a 50% target load is prescribed, verbal instructions for 10% target load training could be used to avoid high weight-bearing loads at the patient’s home. However, other training methods (eg,
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