The efficacy and safety of paravertebral block for postoperative analgesia in renal surgery: A systematic review and meta-analysis of randomized controlled trials.

Background: Paravertebral block (PVB) has been widely used in postoperative analgesia, especially in thoracic and breast surgery. However, the efficacy and safety of PVB for analgesia after renal surgery remains uncertain. Therefore, this study aimed to determine the postoperative analgesic efficacy and safety of PVB in renal surgery.

Classification to guide internal fixation for tibial fracture.

Objective: To explore a classification method which can provide the clinical guidance for internal fixation of tibial fracture.

Methods: The different fractures were fixed according to their mechanical classification. Totally, 71 cases of tibial plateau fracture, tibial proximal fracture, tibial distal fracture and Pilon fracture were analyzed to test this selective principle.