Abstract
Background:
Recently, surgeons introduced a minimally invasive modification on the classic posterolateral approach (PLA) in total hip arthroplasty (THA): the direct superior approach (DSA). We investigated the association between surgeon’s experience and the risk of early revision of the DSA in primary THA, using data from the Dutch Arthroplasty Register (LROI).
Methods:
We retrieved all primary THAs performed using the DSA in 4 hospitals between 2016 and 2022 (
Results:
The overall revision rate was 1.5% after a mean follow-up of 2 years. Patients from the 1–25 group had comparable risks of revision compared to patients in the >100 group (hazard ratio [HR] 1.0 [CI, 0.3–3.2]). The risk for patients in groups 26–50, 51–75 and 75–100 was also not statistically different from the >100 group (resp. HR 1.5 [CI, 0.5–5.0], 1.8 [CI, 0.5–6.4] and 0.5 [CI, 0.1–4.0]). Main reasons of revision were dislocation (0.5%) and infection (0.4%).
Conclusions:
We did not identify an association between the surgeon’s experience and the early risk of revision for the DSA in primary THA in the Netherlands. The DSA seems safe in the early adoption phases with a low risk of revision due to dislocation and revision for all other causes.
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