ArticleThe Journal of hand surgery2021
Influence of Brachial Plexus Birth Injury Location on Glenohumeral Joint Morphology.
Article in The Journal of hand surgery, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 9 citations in OpenAlex.
- Changes in Glenohumeral Musculoskeletal Development Following Brachial Plexus Birth Injury.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2025Review
- Bone Mineralization and Metabolism are Altered in a Rat Model of Brachial Plexus Birth Injury.bioRxiv : the preprint server for biology · 2025Article
- Individuals with rotator cuff tears unsuccessfully treated with exercise therapy have less inferiorly oriented net muscle forces during scapular plane abduction.Journal of biomechanics · 2024Article
- Integrated iterative musculoskeletal modeling predicts bone morphology following brachial plexus birth injury (BPBI).Journal of biomechanics · 2020Article
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
Abstract
purposePatient presentation after brachial plexus birth injury (BPBI) is influenced by nerve injury location; more contracture and bone deformity occur at the shoulder in postganglionic injuries. Although bone deformity after postganglionic injury is well-characterized, the extent of glenohumeral deformity after preganglionic BPBI is unclear.
methodsTwenty Sprague-Dawley rat pups received preganglionic or postganglionic neurectomy on a single forelimb at postnatal days 3 to 4. Glenohumeral joints on affected and unaffected sides were analyzed using micro-computed tomography scans after death at 8 weeks after birth. Glenoid version, glenoid inclination, glenoid and humeral head radius of curvature, and humeral head thickness and width were measured bilaterally.
resultsThe glenoid was significantly more declined in affected compared with unaffected shoulders after postganglionic (-17.7° ± 16.9°) but not preganglionic injury. Compared with the preganglionic group, the affected shoulder in the postganglionic group exhibited significantly greater declination and increased glenoid radius of curvature. In contrast, the humeral head was only affected after preganglionic but not postganglionic injury, with a significantly smaller humeral head radius of curvature (-0.2 ± 0.2 mm), thickness (-0.2 ± 0.3 mm), and width (-0.3 ± 0.4 mm) on the affected side compared with the unaffected side; changes in these metrics were significantly associated with each other.
conclusionsThese findings suggest that glenoid deformities occur after postganglionic BPBI but not after preganglionic BPBI, whereas the humeral head is smaller after preganglionic injury, possibly suggesting an overall decreased biological growth rate in this group. CLINICAL RELEVANCE: This study expands understanding of the altered glenoid and humeral head morphologies after preganglionic BPBI and its comparisons with morphologies after postganglionic BPBI.
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