Increased incidence of Gynae-oncological cancer is observed specifically in women above 50 years of age. Sarcopenia (a progressive and generalized loss of skeletal muscle mass, quality, and strength) is considered a reliable indicator of frailty, a poor prognostic factor in these patients. Various frailty scores and measurement of psoas muscle mass are time consuming, can't be done in patients unable to walk and altered mental status. The investigators wanted to evaluate if bedside ultrasound guided skeletal muscle measurement, as a measure of sarcopenia, can be used to predict post operative length of stay.