The aim of this study was to assess a specific
protocol for the treatment of patients with a parosteal osteosarcoma of
the distal femur with limb salvage involving hemicortical resection
and reconstruction using recycled pasteurised autograft and internal
fixation. Between January 2000 and January 2010, 13 patients with
a mean age of 26.5 years (17 to 39) underwent this procedure. All
the tumours were staged according to Enneking’s criteria: there
were eight stage IA tumours and five stage IB tumours. The mean
follow-up was 101.6 months (58 to 142), and mean post-operative
Musculoskeletal Tumour Society functional score was 88.6% (80% to
100%) at the final follow-up. All the patients had achieved bony
union; the mean time to union was 11.2 months (6 to 18). Local recurrence
occurred in one patient 27 months post-operatively. No patient had
a pulmonary metastasis. A hemicortical procedure for the treatment of a parosteal osteosarcoma
is safe and effective. Precise pre-operative planning using MRI
is essential in order to define the margins of resection. Although
it is a technically demanding procedure, gratifying results make
it worthwhile for selected patients. Cite this article:
