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摘要
Objective: To assess the effects of two types of microprocessor-controlled prosthetic knee joints (MPKs) on perceived performance and everyday life activity level. %26lt;br%26gt;Design: Randomized cross-over trial. %26lt;br%26gt;Subjects: Thirty persons with a unilateral above-knee amputation or knee disarticulation classified as Medicare Functional Classification Level-2. %26lt;br%26gt;Methods: Participants were measured in 3 conditions, i.e. using a mechanically controlled prosthesis, an MPK featuring a microprocessor-controlled stance and swing phase (MPKA), and an MPK featuring a microprocessor-controlled stance phase (MPKB). Subjects%26apos; perceived performance regarding prosthesis use was measured with the Prosthesis Evaluation Questionnaire. Subjects%26apos; activity level was quantified using accelerometry. As high within-group variability regarding subjects%26apos; functional performance was expected to impede detection of possible effects of an MPK, data were analysed for the total group and for 3 subgroups of participants. %26lt;br%26gt;Results: Participants%26apos; perception regarding ambulation, residual limb health, utility, and satisfaction with walking were significantly higher in the MPKA condition compared with the mechanical knee joint condition. Participants%26apos; activity level was similar in all knee joint conditions. %26lt;br%26gt;Conclusion: Although Medicare Functional Classification Level-2 amputees report benefitting in terms of their performance from using an MPK, this is not reflected in their actual daily activity level after one week of using an MPK.
- 出版日期2012-5
