Beyond age and comorbidities: frailty and cognitive impairment are associated with early medical complications after surgery for lumbar spinal stenosis in patients aged 75 years and older.
BACKGROUND Risk assessment before surgery for lumbar spinal stenosis in the very elderly relies largely on age and comorbidity scores. We asked: (1) is frailty (modified 5-item Frailty Index, mFI-5) associated with 30-day medical complications beyond age and comorbidity burden? (2) which geriatric parameters are indepe...