Impact of age on postoperative complication rates among elderly patients with hip fracture: a retrospective matched study

Abstract

This study was performed to assess the impact of age of ≥ 90 years on predicting postoperative complications. We retrospectively identified all patients aged ≥ 65 years who underwent surgical repair of hip fractures over a 4.5-year period in our hospital. In total, 261 patients were identified (mean age, 86.2 ± 6.8 years). Ninety-one patients were aged ≥ 90 years (oldest-old group), and the remaining 170 were aged < 89 years (control old group). Postoperative complications developed in 54 of 261 patients (20.7%). The oldest-old group had a significantly higher proportion of patients with a Japanese long-term care insurance need level and trochanteric fracture than the control group. Spinal anesthesia was more frequently performed in the oldest-old group. After propensity adjustment for these characteristics, postoperative complication rates in the oldest-old group remained significantly higher than those in the matched control group (odds ratio (OR) 2.76, 95% confidence interval (95% CI) 1.24–6.49; P = 0.011). Major complications also developed more frequently in the oldest-old group than control group (OR 9.78, 95% CI 1.31–4.36; P = 0.018). Anesthesiologists and surgeons should pay attention to potential complications following hip fracture surgery for patients aged ≥ 90 years regardless of American Society of Anesthesiologists class or social dependency.

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