ArticleSurgical and radiologic anatomy : SRA2021
The anconeus muscle revisited: double innervation pattern and its clinical implications.
Article in Surgical and radiologic anatomy : SRA, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Distal humerus fractures treated with the anconeus-triceps lateral flap approach: a case series of 10 consecutive patients.JSES reviews, reports, and techniques · 2026Article
- Functional compartmentalization of the anconeus: A three-dimensional study of muscle morphology and innervation patterns.Journal of anatomy · 2026Article
- Anconeus and pronation: a palpatory and ultrasonographic study.Surgical and radiologic anatomy : SRA · 2024Article
- Anconeus Exertional Compartment Syndrome and Posterolateral Rotatory Elbow Instability: A Clinical Association and Rare Cause of Elbow Pain.Orthopaedic journal of sports medicine · 2024Article
- Lateral para-olecranon approach: surgical guide and anatomical considerations to the anconeus branch: is there a nerve-free zone?European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2023Article
- A modified trans-anconeus approach to facilitate fixation of a posterior radial head fracture: a cadaveric feasibility study.Anatomy & cell biology · 2023Article
- Relationship between the Branching Patterns of the Radial Nerve and Supinator Muscle.BioMed research international · 2021Article
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Authors and funding
9 authors.
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Abstract
purposeThe aim of the present study is to describe in detail the morphology and innervation pattern of the anconeus muscle, bearing in mind clinical implications such as iatrogenic injuries during surgical elbow approaches.
methodsA cadaveric study was performed; 56 elbows from 28 formalin-fixed cadavers belonging to the Anatomy Department of Universidad Complutense of Madrid were dissected. The triceps-anconeus nerve was located and dissected. A second innervation to the anconeus muscle from a branch of the posterior interosseous nerve (PIN) was occasionally detected. Taking the lateral epicondyle as a landmark, the entry points of both nerves in the muscle were referenced, the triceps-anconeus nerve was referenced at 0°, 30°, 45°, 70° and 90° of elbow flexion, and the PIN branch at 0°.
resultsAnconeus muscle was present in all specimens. The triceps-anconeus nerve was present in all of the dissected elbows. A branch from PIN to the anconeus muscle was present in 38 of the 54 elbows (70.4%). There were statistically significant differences in all measurements regarding the specimens' gender, being higher for men.
conclusionsThere is evidence of a high frequency of a double innervation pattern for the anconeus muscle: the main branch of triceps-anconeus muscle depending on the radial nerve, which is liable to being damaged during posterior elbow approaches, and a secondary branch depending on the PIN. There are very few references to this finding in Anatomical literature and none with such a large sample size.
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