Many severe fingertip injuries may be successfully treated by a thenar H-flap (Fig. 3). It is recommended to cover protruding bone in younger patients. The flap must be detached in 10 to 14 days. The use of the H-flap design permits all wounds to be closed between the first and second stages of surgery and leaves a painless, esthetic donor site.
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Smith et al. (1976) studied this question.