We retrospectively reviewed five patients with chronic acquired dislocation
of the radial head, treated with open reduction and ligament reconstructio
n with a slip of the triceps tendon. Three of the cases were posttraumatic,
one was a dislocation resulting from a mass-occupying lesion, and one case
was caused by recurrent radial head subluxation occurring after an initial
traumatic episode. An ulnar osteotomy was used in one case to allow. reduc
tion of the radial head. All patients had a good postoperative functional a
nd radiographic outcome, without postoperative complications. In two cases,
there was slight loss of motion in relation to the contralateral extremity
. Reconstruction of the annular ligament by using a strip of the triceps fa
scia is a safe and effective treatment in the treatment of chronic acquired
radial head dislocation.