Matar HE, Jenkinson R, Pincus D, et al. - Researchers aimed at ascertaining if and how surgeon age is associated with early surgical complications following primary total hip arthroplasty (THA), within a year, in Ontario, Canada. In a propensity-matched cohort, consecutive adults who underwent their first primary THA for osteoarthritis (2002-2018) were defined. In addition, hospital discharge abstracts, patient’s demographics and physician claims were obtained. Researchers determined age of the primary surgeon for each procedure and employed it as a continuous variable for spline analysis, and as a categorical variable for subsequent matching (young < 45; middle-age 45-55; older > 55). Overall, 122,043 THA recipients were identified with 298 surgeons; younger, middle-aged, and older surgeons carried out 39%, 29%, and 32% THAs, respectively. Recorded complications rate was highest for younger surgeons (< 45 years) while the lowest rate was recorded for surgeons aged 45-55. Observations suggested higher importance of volume rather than age in determining rate of complications of older surgeons.