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Risk of plantar ulceration in diabetic patients with single-leg amputation

Kanade, Rajani, Van Deursen, Robert William Martin ORCID:, Price, Patricia Elaine and Harding, Keith Gordon 2006. Risk of plantar ulceration in diabetic patients with single-leg amputation. Clinical Biomechanics 21 (3) , pp. 306-313. 10.1016/j.clinbiomech.2005.10.005

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Background There is a disconcerting rate of bilateral limb loss in patients with diabetes. Therefore, this study aimed to explore plantar loading of the surviving foot following unilateral trans-tibial amputation within a wider context of daily walking activity to investigate the precise risk to the surviving limb. Methods Twenty-one subjects with diabetic neuropathy and trans-tibial amputation were matched for weight; height; age and gender with 21 control subjects with diabetic neuropathy without history of plantar ulceration. Gait parameters, in-shoe plantar pressure distribution and daily walking (using the step activity monitor) were recorded. Student’s t-tests were used to compare groups (α-level: 0.05). Findings The trans-tibial amputations group walked almost 30% slower compared to controls (P<0.01), with reduced cadence (P<0.01), and shorter strides (P<0.01). Despite walking slower, the surviving foot showed higher mean peak plantar pressures in the trans-tibial amputations group over the heel (P<0.001) however there was no significant difference over the I–II and lateral III–IV–V metatarso-phalangeal regions. Pressure time integral was higher over the heel (P<0.00), I–II (P<0.01) and III–IV–V metatarso-phalangeal (P<0.05) in the trans-tibial amputations group. The amputee group walked less steps per day (P<0.01). Interpretation Adaptations in gait and level of walking activity affect plantar pressure distribution and ultimately the risk of ulceration to the surviving foot. Therefore rehabilitation measures should consider implications for plantar loading and the potential risk of ulceration to the surviving foot.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
Healthcare Sciences
Subjects: R Medicine > R Medicine (General)
Uncontrolled Keywords: Surviving foot, Plantar ulceration, Diabetic neuropathy, Trans-tibial amputation, Physiotherapy
Publisher: Elsevier Health
ISSN: 0268-0033
Last Modified: 17 Oct 2022 10:09

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