High failure rates have been associated with large diameter metal-on-metal total hip replacements (MoM THR). However there is limited literature describing the outcomes following the revision of MoM THR for adverse local tissue reaction (ALTR). A total of 98 large diameter MoM THRs underwent revision for ALTR at our institution. The data was obtained from the clinical records and included the demographics, intra-operative findings of ALTR and post-operative complications. Any subsequent procedures and re-revision for any reason was analysed in detail. The clinical outcome was measured using functional outcome scores using the Oxford hip score (OHS), Western Ontario and McMaster Universities osteo-arthritis index (WOMAC) score and Short Form (SF12). The mean age of the patients at the time of revision was 58.2 yrs. At a mean follow-up of 3.9 years (1.0 to 8.6) from revision for ALTR, there were 15 hips (15.3 %) with post-operative complications and 8 hips (8 %) requiring re-revision. The Kaplan–Meier five-year survival rate for ALTR revision was 91 % (95% confidence interval 78.9 to 98.0). There were no statistically significant predictors of re-revision. The rate of postoperative dislocation following revision was 9.2% (9 hips). The post-operative functional outcome depends on the intra-operative findings of tissue destruction secondary to ALTR. The short term results following revision of large diameter MoM THR for ALTR are comparable with other reports in the literature. The use of constrained liners reduces the incidence of post-operative dislocation. There is an increased risk of postoperative instability following revision THR for ALTR. Early identification and intervention seems to be the logical approach in the management of patients with ALTR.
Evaluation of the pre-operative documentation of neurovascular status in children presenting with Gartland Grades 2 and 3 supracondylar fractures and the development of an Emergency Department Proforma. A retrospective case-note review was performed on patients with Gartland Grade 2 and 3 supracondylar fractures observed in a two-year period from July 2008 – July 2010. 137 patients were included; sixteen patients (11.7%) sustained a Gartland Grade 2a fracture, sixty patients (43.8%) a Gartland Grade 2b fracture and sixty-one (44.5%) a Gartland Grade 3 fracture. Mean patient age at presentation was 5.59 years (range 12 months to 13 years). Nineteen patients (13.9%) had evidence of neurological deficit at presentation and thirteen patients (9.5%) presented with an absent radial pulse. Only twelve patients (8.8%) and nineteen patients (13.9%) respectively had a complete pre-operative neurological or vascular assessment documented. Regarding the individual nerves, fifty-nine (43.1%) patients had median nerve integrity documented, fifty-five (40.1%) ulnar nerve and forty-nine (35.8%) radial nerve integrity documented. Only eighteen patients (13.1%) had their anterior interosseous nerve function documented. Ten patients (7.3%) had post-operative neurological dysfunction, consisting of eight ulnar nerve injuries, and two radial nerve injuries.Purposes of study
Methods and results