Biomechanical and kinematic arguments for glenohumeral dysplasia in obstetric brachial plexus palsy
Obstetric brachial plexus palsy (OBPP) caused by nerve traction injury in the upper limb occurs in a range of 1.5 to 5.1 per 1,000 births. Contractions of the shoulder joint and the irregular development of the glenohumeral joint are recognized complications caused by obstetric brachial plexus palsy. Despite thorough descriptions in the literature, the precise underlying mechanisms remain elusive. These secondary transformations affecting the glenohumeral joint have the potential to restrict the positive outcomes of primary nerve reconstruction. Additionally, they frequently serve as reasons for subsequent reconstructive surgery. This presentation aims to provide a lucid comprehension of the alterations in biomechanics and kinematics associated with glenohumeral dysplasia. Recent research studies are presented to explain the theory of muscle imbalance.
Speakers
- Jörge Bahm, MD