Outcome measures

Primary outcome: Analgesic efficiency of the anesthetic modalities in groups; area under the curve for NRS at 48th h was evaluated.

Secondary outcome: When the first need for analgesic rescue (NRS score > 4 [0: no pain 10: very severe pain]) was received at 2, 4, 6, 8, 12, 24, and 48 h and the total amount of analgesic were determined.

The patients were evaluated in terms of Bromage score and incidence of peroneal motor weakness (dorsiflexion of the ankle and toes).

Length of hospital stay (defined as the days from the end of surgery until discharge).

Functional discharge criteria were applied (ability to get dressed independently, ability to sit and rise from a chair/toilet, independence in personal care, mobilization with walker/crutches, and ability to walk > 70 m with crutches). In addition, adequate pain management with oral drugs was required for discharge.

Patient satisfaction was assessed at 48 h postoperatively (0 = very dissatisfied, 2 = somewhat dissatisfied, 3 = somewhat satisfied, 4 = very satisfied).

The patient’s first mobilization time was recorded in hours.

The TUG test (measured in seconds), which required the patient to get up from a chair, walk 3 m, turn, walk back to the chair, and sit, was performed on the 1st and 2nd postoperative days

Postoperative 1st and 2nd-day ROM measurements were recorded.

Nausea and vomiting scores were recorded (none/middle/vomiting).