Knee Osteoarthritis in the Intact- and Amputation-Side Knees of UK Military Personnel and Veterans With Traumatic Unilateral Transtibial Limb Loss 8 and 11 Years Postinjury: The ADVANCE Cohort
Fraje C.E. Watson PhD, Oliver O’Sullivan PhD, Alex N. Bennett PhD, Susie Schofield MSc, Diana Toderita PhD, Fearghal P. Behan PhD, Christopher J. Boos PhD, Nicola T. Fear PhD, Paul Cullinan PhD, Harriet Kemp PhD, Anthony M.J. Bull PhD
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引用次数: 0
Abstract
Objective
To compare knee osteoarthritis (OA) in people with unilateral transtibial (UTT) limb loss (LL) between (1) intact- and amputation-side knees and (2) ∼8- and ∼11-years post-LL and to report knee OA in the reference population.
Design
Inception cohort.
Setting
UK military.
Participants
Volunteers with UTT LL (n=36) and matched controls (n=36).
Interventions
Not applicable.
Main Outcome Measures
Kellgren-Lawrence (KL; 0-4 [none–severe]) score and Knee Injury and Osteoarthritis Outcome Score (100-0 [no problems–severe problems]) for pain and symptoms.
Results
At baseline, ∼8 years after LL, the mean age was 32.9±4.2-years. Participants used dynamic–passive prosthetic limbs for daily activities and exercise. At baseline, KL was not different between intact- and amputation-side knees (P=.220). At follow-up, KL was worse on the amputation side than intact-side knee (P=.021). Rank-biserial correlation indicated that, for a randomly chosen pair, the amputation-side knee was 67% more likely to have a higher KL score than the intact-side knee. On both the intact- and amputation-side knees, KL was not different between baseline and follow-up (P=.706 and .138). Knee Injury and Osteoarthritis Outcome Score pain and symptoms were not different between intact- and amputation-side knees at baseline (pain: median, 100.0 vs 100.0; P=.253; symptoms: median, 90.0 vs 86.5; P=.573) or follow-up (pain: median, 94.4 vs 97.2; P=.291; symptoms: median, 90.0 vs 90.0; P=.247). Knee Injury and Osteoarthritis Outcome Score Pain (P=.619 and .557) and Symptoms (P=.664 and .580) were not different between baseline and follow-up for the intact- and amputation-side knees.
Conclusions
For the first time, we have compared OA of the intact- and amputation-side knee of people with UTT LL. Contrary to current opinion, radiographic OA was worse on the amputation-side knee 11 years post-LL. Modern military populations may be unique in their access to rehabilitation and prosthetic technology, resulting in different patterns of OA. Clinical care should focus on the intact- and amputation-side knee of people with UTT LL.
期刊介绍:
The Archives of Physical Medicine and Rehabilitation publishes original, peer-reviewed research and clinical reports on important trends and developments in physical medicine and rehabilitation and related fields. This international journal brings researchers and clinicians authoritative information on the therapeutic utilization of physical, behavioral and pharmaceutical agents in providing comprehensive care for individuals with chronic illness and disabilities.
Archives began publication in 1920, publishes monthly, and is the official journal of the American Congress of Rehabilitation Medicine. Its papers are cited more often than any other rehabilitation journal.