Patients who underwent spinal anesthesia due to tibial fracture will be identified from their follow-up files. Among these patients, those who underwent erector spinae plane block with 20 ml of 0.5% bupivacaine and 5 ml of 1% lidocaine at the sacral level and 20 ml of 0.5% bupivacaine and 5 ml of 1% lidocaine at the L3 level while sitting under ultrasound guidance for postoperative analgesia will constitute this group.

Patients who underwent spinal anesthesia due to tibial fracture will be identified from their follow-up files. Among these patients, those who underwent popliteal sciatic nerve block with 30 ml of 0.5% bupivacaine while supine position under ultrasound guidance for postoperative analgesia will constitute this group.

This study is to retrospectively compare the analgesic efficacy and impact on postoperative recovery of popliteal sciatic nerve blocks and Lumbar-Sacral Erector Spinae Plane blocks administered for postoperative pain management in tibial fractures.

Postoperative analgesia will be assessed by Visual Analog Scale Score and postoperative analgesic consumption. The visual analog scale is a numerical assessment ranging from 0 to 10. A score of 0 is considered as no pain, a score of 5 is considered as moderate pain, and a score of 10 is considered as unbearable pain. Rescue intravenous analgesic treatment is applied to scores of 4 and above.

Patients will be evaluated with Bromage Scale and mobilization times.The bromage scale is a numerical assessment ranging from 0 to 3. A score of 0 is No motor block, a score of 1 is Inability to raise extended leg; able to move knees and feet no pain, a score of 2 is Inability to raise extended leg and move knee; able to move feet, a score of 3 is Complete block of motor limb.It will also be checked when the patients can walk after the motor block has passed.