The aim of this retrospective study was to compare the functional
and radiological outcomes of bridge plating, screw fixation, and
a combination of both methods for the treatment of Lisfranc fracture
dislocations. A total of 108 patients were treated for a Lisfranc fracture
dislocation over a period of nine years. Of these, 38 underwent
transarticular screw fixation, 45 dorsal bridge plating, and 25
a combination technique. Injuries were assessed preoperatively according
to the Myerson classification system. The outcome measures included
the American Orthopaedic Foot and Ankle Society (AOFAS) score, the
validated Manchester Oxford Foot Questionnaire (MOXFQ) functional
tool, and the radiological Wilppula classification of anatomical
reduction.Aims
Patients and Methods
The aim was to review the data and survival of patients with osteosarcoma in New Zealand from 1994 to 1999 and compare this to data retrieved from a similar review of the data and survival of patients from 1981 to1987. Data was obtained from the New Zealand cancer registry from 1994–1999 and the raw data was retrieved from the 1981–1987 study. There were 98 cases in the 1981–1987 cohort and 85 cases in the 1994–1999 cohort. Overall 5 year survival from osteosarcoma improved from 31.6% to 43.5% between the cohorts. The 5 year survival in patients less than 40 years with non metastatic tumours improved from 54.2% to 69.7%. When patients were stratified by age and stage there was a statistically significant improvement in survival between the 2 cohorts The survival in patients with osteosarcoma in New Zealand has improved over the study period and is similar to that seen in the overseas literature.
The Harris-Galante II acetabular prosthesis was used in Taranaki from 1992 until 1999. An increasing number of failures were noted due to liner dissociation. This lead us to retrospectively review the 237 patients with the Harris-Galante II acetabular prosthesis inserted for primary arthroplasty to assess true failure rates and mechanism of failure. All of the cases were followed up with clinic interview, home interview, phone interview or review of notes. Harris hip scores were performed and radiographs were taken. Forty-eight failures were found of which 66% were due to liner dissociation. The Kaplan-Meier 10 year estimate of implant survival was 72.9% ± 7.8%. Several methods of revision were performed. Forty per cent of cases managed with polyethylene liner exchange alone required further revision for liner dissociation. The poor survival of the Harris-Galante II cup appeared primarily due to failure of the capture mechanism of the cup. Dislocation and small shell size were both found to be significant independent factors which contributed to the incidence of failure.
