30-day morbidity and mortality after hip surgery – A single-centre study.

Objective: To evaluate the 30-day morbidity and mortality after hip surgery in a low-resource setting, and toidentify the key risk factors.Method: The retrospective study was conducted in January 2023 at the Department of Orthopaedic Surgery, AgaKhan University Hospital, Karachi, and comprised data of patients having undergone elective and emergency hipsurgeries from January 1, 2015, to December 31, 2019. Data regarding demographics, comorbidities, surgical detailsand postoperative outcomes was noted to identify patient and surgery-related risk factors. Data was analysed usingSTATA 17.Results: Of 1,221 patients with median age 67 years (interquartile range: 54-76 years), 759(62.2%) were male, and23(1.9%) died within 30 days. Mortality cases were significantly older (p=0.018) and had a higher burden ofcomorbidities (p<0.001) than the rest. Dynamic hip screw fixation was the most common procedure 447(36.6%).Mortality was significantly higher for patients requiring intensive care (p=0.003). Increased Charlson ComorbidityIndex score, length of hospital stay, failed dynamic hip screw, re-intubation, septic shock and cardiac arrest wereindependent predictors of 30-day mortality (p<0.05).Conclusion: Advanced age and higher Charlson Comorbidity Index scores were significant associated with 30-datmortality following hip surgery.