Daily Physical Activity early after Total Hip Arthroplasty
Master thesis
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http://hdl.handle.net/11250/296926Utgivelsesdato
2015Metadata
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Sammendrag
Background:Daily physical activity early after total hip arthroplasty (THA) is important to
prevent postoperative complications and reduce negative consequences of inactivity. The
extent of muscle weakness after THA caused by the surgical approach is suggested as a factor
for how physically active patients are early after surgery. Purpose: The purpose of this study
was to compare daily physical activity in three groups of THA patients undergoing different
surgical approaches in a fast track treatment course early after hospital discharge to home.
Material and Methods: This prospective cohort study included a total of 63 participants with
unilateral hip osteoarthritis under the age of 70 years. Participants were allocated to the direct
lateral approach (DLA), the posterior approach(PA), and the anterior approach (AA). Daily
physical activity was measured by body-worn activity monitors, activPALs, attached on the
participants' thigh during the first four days after hospital discharge. Primary outcome was
time in upright positions per 24 hours. Secondary outcomes were time in walking, time in
standing, number of steps, and number of upright events per 24 hours.Results: A total of 61
(n=23, DLA; n=19, PA; n=19, AA) participants (mean age 56.2, SD 8.4 years) completed the
activity monitoring and were included in the final analyses. There were no significant group
differences in any of the measures of daily physical activity (p's>0.153). Participants showed
a large variation in time in upright positions (median 3.53, IQR 2.91-4.81 hours), as well as
the secondary outcome measures of daily physical activity.Conclusions: There was no
difference in daily physical activity early after surgery between THA patients undergoing
DLA, PA and AA in a fast-track treatment course. However, the patients spent a relatively
high amount of time being physically active.