Average life span, life expectancy, and the number of older people, aged 65 years and over, have increased during the last decades. As life expectancy increased, the rate of emergency and elective surgical interventions has also increased in the older age group. Although good health is required to reach an advanced age, over time, organ functions may deteriorate, and some challenges may develop that will negatively affect the balance of homeostasis. Stress, such as trauma or surgery, can cause deterioration in organ functions or aggravation of impaired functions. The risk of developing undesirable events is higher, due to the diminished reserve and function, during anesthesia applied to these patients. There is a limited number of studies in the literature about the relation between the anesthesia technique and morbidity and mortality in oldest old patients operated for orthopedic surgery. In this study, we aimed to analyze the data of the oldest-old patients operated on for orthopedic surgery between 2016-2022, retrospectively, and to investigate the relationship between anesthesia technique and adverse effects including morbidity and mortality.

Inclusion Criteria:

• Aged 80 years and above
• Underwent orthopedic surgery

Exclusion Criteria:

• Those who had the operation with local anesthesia

A total of 1356 oldest-old patients underwent orthopedic surgery between January 02 2016 and December 31 2022 in our hospital.