In a review of 160 mallet fingers, forty-four were found to have a
fracture of the distal phalanx. Of these mallet fractures, twenty-one could
be followed for a mean of 3.25 years (range, six months to eight years).
Six had been treated surgically and fifteen had simply been splinted. Of
these twenty-one mallet fractures, all but one had a good result
irrespective of the form of treatment. Bone-remodeling occurred in all
digits (including two with fibrous union), with reconstitution of the
articular surface and preservation of the joint space as seen on
radiographs. There was also a near-normal range of painless motion in all
but one finger. Poor patient compliance was an occasional difficulty when
conservative treatment was used. Surgical treatment was difficult and
unreliable; it offered no advantage over conservative treatment and had a
greater rate of morbidity. The major "complication" of both forms of
treatment was a bone prominence on the dorsum of the distal interphalangeal
joint. These findings suggest that most mallet fractures can be treated
conservatively, ignoring joint subluxation and the size and amount of
displacement of the bone fragment.