Seventy-two Mitchell distal metatarsal osteotomies for hallux valgus performed over a period of 10 years have been reviewed. Sixty-six (92 per cent) were graded as excellent or good. Retrospective radiographic analysis of 29 of these cases showed that the operation had reduced the intermetatarsal angles to within normal anatomical limits. No patient experienced a worsening of symptoms as a result of the operation.

1. Two cases of primary skeletal haemangiopericytoma treated by ablative surgery, one in combination with radiotherapy, are reported.

2. A discussion of the management of these tumours includes surgical excision, radiotherapy, a combination of both or a combination of radiotherapy with chemotherapeutic agents.

3. Because of the unpredictable behaviour of these tumours it seems necessary to include ablative surgery if cure is to be expected.