One half of patients reports persistent pain three months after orthopaedic surgery.

Objective: To determine persistent post-surgical pain prevalence after orthopaedic surgery with its impact on patient quality of life and to assess factors related to it.

Study Design: Cross-sectional cohort study.

Patients: A questionnaire was mailed to 2100 patients undergoing orthopaedic surgery in our teaching hospital.

The emergence level of the musculocutaneous nerve from the brachial plexus: implications for infraclavicular nerve blocks.

Background: In this cadaveric study we assessed the level of the emergence of the musculocutanous nerve (MCN) relative to needle insertion site during infraclavicular block.

Methods: Forty brachial plexi from 20 embalmed adult cadavers were dissected. The MCN was exposed from its origin on the lateral cord to its penetration into the coracobrachialis muscle.