Isolated palsy of the musculocutaneous nerve, terminal branch of the lateral cord of the brachial plexus, is rare. It is responsible for sensory loss of the distal forearm and weakness of elbow flexion. It occurs after shoulder or clavicle surgery, trauma (fracture, dislocation, blows on the shoulder), violent exercice or extension of the forearm, prolonged positioning of the shoulder in extension-abduction-external rotation and phlebotomy. Different mechanisms such as stretching, compression or direct nerve injury are encountered. We report 5 cases with isolated musculocutaneous nerve palsy, including bilateral palsy caused by violent forearm extension. In other cases, mechanisms were an extensive stretching during surgery and compression caused by prolonged supine position. Different injury locations and causes described in literature are reviewed.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Investigation of the canine elbow joint innervation in 100 joints.
PLoS One
January 2025
Department of Small Animal Diseases and Clinic, Institute of Veterinary Medicine, SGGW in Warsaw, Warsaw, Poland.
The canine elbow joint is innervated by four nerves: the musculocutaneous, median, radial, and ulnar nerves. There is little data in the veterinary literature examining the course of the articular branches of those nerves. There is also no agreement as to their anatomical location in the joint capsule nor to their number.
View Article and Find Full Text PDFVariations in the Terminal Branches of the Brachial Plexus in the Axillary Fossa.
Biomed Res Int
January 2025
Department of Maxillofacial Surgery, University Hospital "Medika", Ruse, Bulgaria.
The brachial plexus is the primary nerve source for the upper limb. Variations in its anatomy can alter the nerve supply to the upper extremity. Such deviations are clinically important, as they can change the symptomatology of various pathologic conditions, leading to misdiagnosis, inadequate treatment, and surgical failures as a consequence.
View Article and Find Full Text PDFComparison of costoclavicular and lateral sagittal infraclavicular approaches in ultrasound-guided brachial plexus block.
Agri
January 2025
Department of Anesthesiology and Reanimation, Yozgat City Hospital, Yozgat, Türkiye.
Objectives: Lateral sagittal infraclavicular approach is frequently used because it has less risk of complications and provides rapid and adequate regional anesthesia. Due to the fact that the brachial plexus is deeper in the infraclavicular region and the approach angle is sharper, it can be technically challenging. In this study, we aimed to compare the costoclavicular approach, which is a newly defined approach, with the lateral sagittal infraclavicular brachial plexus block.
View Article and Find Full Text PDFReview of Outcomes After Peripheral Nerve Transfers for Motor Nerve Injury in the Upper Extremity.
JBJS Rev
November 2024
Division of Plastic and Reconstructive Surgery, University of Colorado School of Medicine, Anschutz Medical Center, Aurora, Colorado.
Background: Modern nerve-to-nerve transfers are a significant advancement in peripheral nerve surgery. Nerve transfers involve transferring donor nerves or branches to recipient nerves close to the motor end unit, leading to earlier reinnervation and preservation of the musculotendinous units in proximal nerve injuries. After nerve reinnervation, function may be superior to traditional tendon transfer techniques in terms of strength and independent motion.
View Article and Find Full Text PDFUsing Transcranial Magnetic Nerve Stimulation to Differentiate Motor and Sensory Fascicles in a Mixed Nerve: Experimental Rat Study.
J Reconstr Microsurg
January 2025
Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Taipei, Linkou, Chang Gung University, Taoyuan, Taiwan.
Background: Accurately matching the correct fascicles in a ruptured mixed nerve is critical for functional recovery. This study investigates the use of transcranial magnetic stimulation (TMS) to differentiate motor and sensory fascicles in a mixed nerve.
Methods: In all 40 rats, the median nerve in the left upper arm was evenly split into three segments.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!