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LOWER LIMB AMPUTATIONS AT THE KENYATTA NATIONAL HOSPITAL, NAIROBI
Abstract
Objective: To determine the causes and pattern of lower limb amputations at the Kenyatta National
Hospital.
Design: Descriptive prospective study.
Setting: The Kenyatta National Hospital between July 2003 and June 2004.
Results: A total of 77 lower limb amputations (LLA) were performed on 74 patients. The age ranged
from seven months to 96 years (mean 44.8 ± 22.5). Forty six patients (62.1%) were male. Majority of
the patients (89.1%) had primary or no formal education, forty one (55.4%) were unemployed, with
39% self employed in the informal sector. Peripheral vascular diseases were the main indication for
LLA (55.3%), 13 patients (17.5%) due to diabetes-related gangrene. Eighteen patients (24.3%) had
tumours, mainly osteogenic sarcoma (16.2%), while trauma accounted for 18.9%. Forty two (55%)
of the amputations were above-the-knee, 24 (31%) below-the-knee, four (5%) hip disarticulations
and seven (9%) were foot amputations.
Conclusion: This study found peripheral vascular diseases unrelated to diabetes to be the main
indication for lower limb amputations at Kenyatta National Hospital contrary to previous
institutional and loco-regional studies which report trauma as the leading cause. Further
investigation into vascular causes is therefore recommended.
Hospital.
Design: Descriptive prospective study.
Setting: The Kenyatta National Hospital between July 2003 and June 2004.
Results: A total of 77 lower limb amputations (LLA) were performed on 74 patients. The age ranged
from seven months to 96 years (mean 44.8 ± 22.5). Forty six patients (62.1%) were male. Majority of
the patients (89.1%) had primary or no formal education, forty one (55.4%) were unemployed, with
39% self employed in the informal sector. Peripheral vascular diseases were the main indication for
LLA (55.3%), 13 patients (17.5%) due to diabetes-related gangrene. Eighteen patients (24.3%) had
tumours, mainly osteogenic sarcoma (16.2%), while trauma accounted for 18.9%. Forty two (55%)
of the amputations were above-the-knee, 24 (31%) below-the-knee, four (5%) hip disarticulations
and seven (9%) were foot amputations.
Conclusion: This study found peripheral vascular diseases unrelated to diabetes to be the main
indication for lower limb amputations at Kenyatta National Hospital contrary to previous
institutional and loco-regional studies which report trauma as the leading cause. Further
investigation into vascular causes is therefore recommended.
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