Recurrent osteoid osteoma. Case report with a ten-year asymptomatic interval.

Osteoid osteoma has been accepted as a distinct clinical and pathologic entity for more than 50 years. Surgical curettage will often cure the lesion, although en bloc excision is now the preferred treatment. The development of local recurrence after surgery, although rare, has been well documented after both curettage and en bloc excision. Symptomatic recurrence of an osteoid osteoma was seen ten years after surgical curettage. Its occurrence at the same site as the original lesion is consistent with the concept that it had originated from residual tissue and is in keeping with the concept of osteoid osteoma as a benign tumor.

Monteggia injuries in children.

Forty-six children with Monteggia fracture-dislocations have been studied. The circumstances of the accident could rarely be recalled so that the mechanism of injury remains unclear. The study did, however, confirm the importance of conservative management of the injury in children; unlike the adult variety, this gave very satisfactory results. Our review also supports the classification into three basic types of Monteggia lesion according to the direction of displacement of the dislocated radial head. For simplicity, all other types, variations or equivalents can be regarded as belonging to these basic patterns; in particular we include those controversial cases in which the radiohumeral dislocation is combined with a fractured olecranon.