The prevalence of the anatomical variation in a Turkish population: supernumerary muscle–anconeus epitrochlearis

Duran, Semra; Günaydin, Elif; Çayhan, Velihan

doi:10.1007/s00276-022-03021-7

Cited by 3 publications

(3 citation statements)

References 23 publications

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“…There was no significant difference in the prevalence between different genders. The muscle was more commonly present in the right arm (72.2%) than in the left (27.8%), but there is no data on which hand was dominant in these patients [3].…”

Section: Methodsmentioning

confidence: 86%

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Anconeus epitrochlearis – prevalence and clinical manifestations

Kwiecień,

Kuśnierz,

Daniluk

et al. 2024

J Pre Clin Clin Res.

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Introduction and Objective. Anconeus epitrochlearis (AE) is an anomalous accessory muscle discovered in 1865. It arises from the vmedial epicondyle of the humerus to the olecranon of the ulna. Its appearance is the result of evolution and has benefits as well as deficits that can be harmful. It is believed that if anconeus trochlearis is present, it replaces the Osborne's ligament. The muscle is most commonly detected incidentally during the diagnosis of cubital tunnel syndrome (CuTS). The aim of the study is to review papers on the prevalence of AE, symptoms resulting from its presence, and conclusions drawn from available sources on PubMed. Review Methods. The review is based on 14 papers found in PubMed and PubMedCentral databases after searching for 'anconeus epitrochlearis', 'anconeus epitrochlearis' and 'cubital tunnel syndrome' published between 1874-2023. Brief description of the state of knowledge. Prevalence varies across different types of studies aimed at identifying anconeus epitrochlearis: 8.1%-23% for MRI studies, 4.5%-8.5% for operative reports, and 5.4%-26.5% for cadaveric studies. The mere presence of AE usually does not cause any symptoms. If the presence of anconeus epitrochlearis is symptomatic, patients complain of numbness in the fourth and fifth fingers of the hand and weakness of thenar muscle, which are symptoms of cubital tunnel syndrome (CuTS). Summary. It is likely that AE alone does not cause cubital tunnel syndrome which occurs only when anconeus epitrochlearis undergoes hypertrophy, dispelling doubts about whether the mere presence of the muscle is synonymous with the development of cubital tunnel syndrome. A higher percentage of CuTS was reported in the dominant hand of individuals who had the AE in that limb. Cubital tunnel syndrome caused by the AE is a favourable factor for treatment and postoperative regeneration.

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Section: Methodsmentioning

confidence: 86%

“…Clinical manifestations. Presence of the anconeus epitrochlearis muscle is typically asymptomatic and is found incidentally [3]. Detection of the AE is most commonly a result of investigating the cause of cubital tunnel syndrome (CuTS) with patients present with tingling and numbness in the 4th and 5th fingers, as well as pain around the elbow.…”

Section: Methodsmentioning

confidence: 99%

Anconeus epitrochlearis – prevalence and clinical manifestations

Kwiecień,

Kuśnierz,

Daniluk

et al. 2024

J Pre Clin Clin Res.

View full text Add to dashboard Cite

show abstract

“…Subsequent MRI studies in healthy adults by Kawahara et al from Nagasaki and Nascimento and Ruiz from Sao Paulo reported moderate true prevalence rates, measuring 11% and 13%, respectively [26,34]. Duran et al from Ankara found a slightly lower prevalence of the AE in an MRI study, estimating it at approximately 8% [10]. In Schertz et al's study from Paris on ulnar neuropathy using highresolution ultrasound, the AE was identified in 16% (23 out of 145) of healthy control elbows [37].…”

Section: Discussionmentioning

confidence: 94%