Forty-one Sutter metacarpophalangeal prostheses were implanted into 11 hands of nine patients. Twelve of these prostheses were revised from three patients after a mean period of 42 months. Of the 12 prostheses, 11 showed fracture at the junction of the distal stem and the central hinge region. Two Sutter metacarpophalangeal prostheses were tested on a single station finger simulator and both failed due to fracture at the junction of the hinge and the distal stem.
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Joyce et al. (2003) studied this question.
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