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Faster self-selected walking speeds
9%
90/1001
Improved performance on the Sickness Impact Profile (SIP) questionnaire
8%
83/1001
Physicians were more satisfied with the cosmetic appearance
17%
168/1001
Decreased use of a prosthetic
57%
568/1001
Decreased dependence with patient transfers
88/1001
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Knee disarticulation level is associated with the worst functional result 2 years after injury (compared to transmetatarsal, Symes, AKA, or BKA). The prosthetic use is decreased with a knee disarticulation as compared to a transtibial amputation. The cohort study by MacKenzie et al prospectively followed 161 patients that were part of the Lower Extremity Assessment Project (LEAP). These patients underwent an above-the-ankle amputation at a trauma center within 3 months following the injury and followed for 2 years. This study revealed that through-the-knee amputations had significantly worse scores for the objective performance measures of self-selected walking speed, independence in transfers, walking, and stair-climbing. Through-the-knee amputees also had worse SIP scores than AKA and BKA patients. Physicians were also less satisfied with both the clinical and the cosmetic recovery of the patients with a through-the-knee amputation. It should be noted that patients with a BKA had a faster walking speed than those with an AKA. Despite the worse SIP scores for through-the-knee amputations, patients actually reported less pain than those with an AKA or BKA, though this wasn't statistically significant.
1.6
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