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Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_16 | Pages 2 - 2
1 Oct 2017
Aranganathan S Maccabe T George J Hassan H Poyser E Edwards C Parfitt D
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Outsourcing elective surgery has become increasingly commonplace to meet increasing demand from a growing & aging population. There is concern that outsourcing was influencing the nature of residual workload that was unsuitable for treatment elsewhere. This led to the impression that our unit is operating on more complex patients orthopaedic problems, ASA and Body Mass Index (BMI). By losing a disproportionate number of straightforward patients our department's outcomes, productivity and training opportunities could be adversely affected. Retrospective analysis of prospectively collected data of primary hip / knee arthroplasties between July & December for 2014(pre-outsourcing), 2015 and 2016(post-outsourcing). ANOVA, Tukey Honest Significant Difference(HSD) and Pearson's correlation used. Total of 726 primary arthroplasties were performed with an almost 50 % reduction post outsourcing. Post-outsourcing, BMI and ASA were significantly worse with a ANOVA of p=0.001 and HSD p=0.003. Length of stay increased from 5.4 days in 2014 to 6.2 days in 2015 ANOVA p< 0.001 but decreased in 2016. BMI significantly affected operating time (Pearson's r =0.12, p< 0.05) and anaesthetic time (Pearson's r =0.19, p< 0.05). ASA significantly affected length of hospital stay, p< 0.01 and operation time, p=0.007 but no effect on anaesthetic time. In conclusion, we are operating on more complex patients due to current outsourcing setup. Implications for short-term were on anaesthetic and operation time, inpatient stay and training opportunity were affected, with possible long-term implications on individual surgeon and unit outcomes (complications, patient satisfaction)


The Journal of Bone & Joint Surgery British Volume
Vol. 94-B, Issue 4 | Pages 510 - 516
1 Apr 2012
Hickey BA Kempshall PJ Metcalfe AJ Forster MC

As part of the national initiative to reduce waiting times for joint replacement surgery in Wales, the Cardiff and Vale NHS Trust referred 224 patients to the NHS Treatment Centre in Weston-Super-Mare for total knee replacement (TKR). A total of 258 Kinemax TKRs were performed between November 2004 and August 2006. Of these, a total of 199 patients (232 TKRs, 90%) have been followed up for five years. This cohort was compared with 258 consecutive TKRs in 250 patients, performed at Cardiff and Vale Orthopaedic Centre (CAVOC) over a similar time period. The five year cumulative survival rate was 80.6% (95% confidence interval (CI) 74.0 to 86.0) in the Weston-Super-Mare cohort and 95.0% (95% CI 90.2 to 98.2) in the CAVOC cohort with revision for any reason as the endpoint. The relative risk for revision at Weston-Super-Mare compared with CAVOC was 3.88 (p < 0.001). For implants surviving five years, the mean Oxford knee scores (OKS) and mean EuroQol (EQ-5D) scores were similar (OKS: Weston-Super-Mare 29 (2 to 47) vs CAVOC 29.8 (3 to 48), p = 0.61; EQ-5D: Weston-Super-Mare 0.53 (-0.38 to 1.00) vs CAVOC 0.55 (-0.32 to 1.00), p = 0.79). Patients with revised TKRs had significantly lower Oxford knee and EQ-5D scores (p < 0.001).

The results show a higher revision rate for patients operated at Weston-Super-Mare Treatment Centre, with a reduction in functional outcome and quality of life after revision. This further confirms that patients moved from one area to another for joint replacement surgery fare poorly.