Deep infection is a devastating complication of total knee arthroplasty (TKA). This study aimed to determine if there was a relationship between surgeon volume and the incidence of revision for infection after primary TKA. Data from the Australian Orthopaedic Association National Joint Replacement Registry (AOANJRR) from 1 September 1999 to 31 December 2020 for primary TKA for osteoarthritis that were revised for infection. Surgeon volume was defined by the number of primary TKA procedures performed by the surgeon in the year the primary TKA was performed and grouped as <25, 25-49, 50-74, 75-99, >100 primary TKA procedures per year. Kaplan Meir estimates for cumulative percent revision (CPR) and Cox Proportional Hazard Ratios were performed to compare rates of revision for infection by surgeon volume, with sub-analyses for patella and polyethylene use, age <65 years and male gender. 5295 of 602,919 primary TKA for osteoarthritis were revised for infection. High volume surgeons (>100 TKA/year) had a significantly lower rate of revision for infection with a CPR at 1 and 17 years of 0.4% (95% CI 0.3, 0.4) and 1.5% (95% CI 1.2, 2.0), respectively, compared with 0.6% (95% CI 0.5, 0.7) and 2.1% (95% CI 1.8, 2.3), respectively, for low volume surgeons (<25 TKR/year). Differences between the high-volume group and the remaining groups remained when sub-analysis for age, gender, ASA, BMI, patella resurfacing and the use of cross-linked polyethylene (XLPE). High volume surgeons have lower rates of revision for infection in primary TKA.
We propose a model of care where by Regular scheduled outreach visits by a Single team provides more dependability of care and understanding of the local needs and cultural practises. Thereby titrating the care to meet local needs rather than enforcing the Western model of care to a very different cultural background. I have been fortunate as a SET 4 Registrar to be involved with an Outreach team to Latouka Hospital. Spear headed by Dr M McAuliffe over the last 3 years the annual visit has taken shape as a dependable way of providing care to the community of Latouka. The team has evolved over the years to involve Dr Brazel, Dr Tetsworth, Dr Bansi, and our scrub staff. The team consists of 2 teams which visit Latouka every 6 months and help institute a multimodal care plan. 1) Regularity of visits helps build confidence locally and engraves the foundations of dependability of care. 2) Difficult and complex cases are discussed in specially earmarked clinics held every 6 months providing a brain storming sessions to the local clinicians and helping them achieve the best care for the patients under the restrictions of the local infrastructure. 3) Regular teaching sessions / practical workshops are held for the registrars and junior doctors empowering them to carry the baton once the visiting team leaves. 4) Regular follow up of the patients operated upon is attained to titrate care to the locals based upon the local needs and cultural practises. 5) Helping the surgical teams, nurses, radiographers, physiotherapists formulate protocols of care and comparing them to the protocols used in Australia/NZ. 6) Creating an educational fund for the local registrars enabling them to attend observer ships and courses in Australia/New Zealand. We think that this model of care provides a much more organised and long term benefit to the local community compared to erratic visits by volunteer teams. A similar model of care, if instituted over many divisional hospitals of the South Pacific, will be vital in improving the health care needs of the locals and provide the local staff with the much needed support they deserve.
