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75-year-old diabetic with an ischemic limb undergoing a transtibial amputation
3%
39/1551
45-year-old woman that had a propane tank explode near her thigh undergoing a transfemoral amputation
62%
961/1551
25-year-old army captain with a complex blast injury to his shin undergoing transfemoral amputation
28%
427/1551
65-year-old with necrotizing fasciitis of his lower leg undergoing knee transfemoral amputation
2%
32/1551
35-year-old woman with a grade IIIC open distal tibia fracture who elects for a below the knee amputation
5%
81/1551
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Heterotopic ossification (HO) most commonly occurs at the amputation site if the amputation was performed thru the zone of injury, especially if the injury was a blast mechanism. Potter et al reviewed 213 military amputations and found heterotopic ossification was present in 63% of the residual limbs. A final amputation level within the zone of injury and a blast mechanism were risk factors for the development of heterotopic ossification. Symptomatic HO was removed successfully with a low recurrence rate (<10%). Other answers listed describe amputations at a level above the zone of injury.
3.6
(40)
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