Incidence and morphology of the accessory head of the flexor pollicis longus muscle (Gantzer's muscle) in South Indian population

Bagoji, Ishwar B.; Doshi, M.A.; Hadimani, Gavishiddappa A.; Bannur, B M; Patil, Bhushan; Patil, B.S.; Das, Kuntal Kanti

doi:10.1016/j.jasi.2017.08.160

Cited by 2 publications

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“…Fifty-eight studies in the current review have been undertaken to explore the prevalence of Gantzer’s muscle ( Fig. 1 ) [ 3 , 4 , 8 - 55 ]. These studies examined 5,903 upper limbs for ahFPL variant ( Table 1 ).…”

Section: Resultsmentioning

confidence: 99%

“…Most of the studies did not provide adequate information about sex distribution. The studies may have a high risk of bias (ROB) because the authors did not report adequate anatomical and morphological details [ 16 , 17 , 20 , 25 , 30 , 41 , 47 ]. The studies with a higher ROB reported less prevalence of ahFPL, i.e.…”

Section: Resultsmentioning

confidence: 99%

“…In the current meta-analysis, the prevalence of Gantzer's muscle was 65% in 5,903 upper limbs, which is inconsistent with the results of the prior meta-analysis. The pooled prevalences of ahFPL and ahFDP variants were 48% and 17%, re-EI Domiaty et al 2008 [8] Loth 1912 [53] Mohammed 2018 [9] African Afroze et al 2020 [18] aI-Qattan 1996 [15] Bagoji a et al 2017 [16] Bajpe et al 2015 [17] Bangarayya et al 2018 [20] Bilecenoglu 2005 [21] Burute & Vatsalaswamy 2017 [22] Chakravarthi et al 2014 [24] Desai et al 2017 [ spectively. The pooled prevalence that varied in the cumulative analysis was 4% (48% to 52%).…”

Section: Summary Of Findingsmentioning

confidence: 99%

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The prevalence and distribution of the variants of Gantzer’s muscle: a meta-analysis of cadaveric studies

et al. 2022

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The Gantzer’s muscle is often present in the flexor compartment of the forearm. It lies underneath flexor digitorum superficialis and compresses the anterior interosseous nerve. Furthermore, this muscle frequently bestows an accessory muscle of flexor pollicis longus or flexor digitorum profundus, or sometimes together. The current meta-analysis aims to compute the prevalence of subtypes of Gantzer’s muscle. Major electronic databases (PubMed, Scopus, Google Scholar, etc.) were searched for title and abstract. After removing the duplicate citations, the titles/abstracts were shortlisted with the help of inclusion and exclusion criteria. The shortlisted titles/abstracts were downloaded or collected from the library. The data of all subtypes of Gantzer’s muscle were pooled from shortlisted published manuscripts for meta-analysis. The pooled estimate of other anatomical characteristics was also observed. A total of 59 cadaveric studies of sample size 5,903 were evaluated for pooled prevalence of flexor pollicis longus (accessory head). Similarly, the authors evaluated 14 studies of 1,627 upper limbs for flexor digitorum profundus (accessory head). The unit of analysis was per 100 upper limbs. The Pooled prevalence of accessory muscle of flexor pollicis longus and flexor digitorum profundus were 48% (95% CI, 44%–52%) and 17% (95% CI, 13%–21%), respectively. The Gantzer’s muscle is present in 2/3rd of the upper limbs. Accessory head of flexor pollicis longus is almost three times more common than the accessory head of flexor digitorum profundus. A classification of Gantzer’s muscle is needed to reduce the ignorance of these variants.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Summary Of Findingsmentioning

confidence: 99%

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The prevalence and distribution of the variants of Gantzer’s muscle: a meta-analysis of cadaveric studies

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Two muscular variations in the elbow associated with the anterior interosseous nerve

et al. 2021

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The coexistence of different muscular-neurovascular variations is of significant clinical importance. A male cadaver, 76 years old at death, was subjected to routine anatomical dissection; the procedure was performed for research and teaching purposes at the Department of Anatomical Dissection and Donation, Medical University of Lodz. The right forearm and hand were dissected using standard techniques according to a strictly specified protocol. The presence accessory head of the flexor pollicis longus may potentially compress the anterior interosseous nerve. The present case report describes a rare variant of the ulnar head of the pronator teres, characterized by two independent bands (i.e., two proximal attachments). The main band originates from the coronoid process and the second originates from the tendon of the biceps brachii. This type of attachment could potentially affect the compression of the ulnar artery running between the two bands. Additionally, the accessory head of the flexor pollicis longus was observed, which started on the medial epicondyle; its coexistence with a high division median nerve creates a potential pressure site on the anterior interesosseous nerve.

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Incidence and morphology of the accessory head of the flexor pollicis longus muscle (Gantzer's muscle) in South Indian population

Cited by 2 publications

References 0 publications

The prevalence and distribution of the variants of Gantzer’s muscle: a meta-analysis of cadaveric studies

The prevalence and distribution of the variants of Gantzer’s muscle: a meta-analysis of cadaveric studies

Two muscular variations in the elbow associated with the anterior interosseous nerve

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