Unusual bilateral variation of the flexor digitorum accessorius longus muscle and its relation on tarsal tunnel syndrome

Lin, Dustin C.; Souza, Raissa Zuim Dantas De; Fefferman, Ann; Baribeau, Vincent; Bunch, Bailey; Zumwalt, Ann; Wisco, Jonathan J.

doi:10.1007/s00276-021-02840-4

Cited by 3 publications

(2 citation statements)

References 8 publications

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“…Bilateral FDAL has been identified in cadaveric studies, yet no such case has previously been reported in patients [12][13][14] . Such cadaveric studies report a variation in anatomic characteristics, including number of heads, origins (the inner surface of the flexor retinaculum, tendon sheath of FHL, fibula, etc.…”

Section: Discussionmentioning

confidence: 99%

Bilateral Flexor Digitorum Accessorius Longus Precipitating Bilateral Tarsal Tunnel Syndrome

Propp

Torre

Bellas

et al. 2023

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Case: A 29-year-old woman presented with bilateral tarsal tunnel syndrome caused by bilateral flexor digitorum accessorius longus, experiencing immediate relief of symptoms after surgical intervention through 1 year. Conclusion:Accessory muscles can cause compressive neuropathies in multiple areas of the body. In patients who have FDAL as the cause of their tarsal tunnel syndrome, surgeons should have a high index of suspicion of bilateral FDAL if the same patient develops similar contralateral symptoms.Disclosure: The Disclosure of Potential Conflicts of Interest forms are provided with the online version of the article (http://links.lww.com/ JBJSCC/C71).

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Section: Discussionmentioning

confidence: 99%

Bilateral Flexor Digitorum Accessorius Longus Precipitating Bilateral Tarsal Tunnel Syndrome

Propp

Torre

Bellas

et al. 2023

JBJS Case Connector

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“…The FDAL is intimately related to the neurovascular bundle and may abut, compress, or impinge upon the posterior tibial and/or lateral plantar nerves. Accessory muscles of the ankle are typically asymptomatic, but can cause pain, compressive neuropathy, compartment syndrome, or rigid hind foot deformities, and can also mimic soft tissue tumors [13][14][15][16][17][18]. The flexor hallucis longus (FHL) and flexor digitorum longus (FDL) tendon are routinely used in reconstructive foot and ankle surgery [20].…”

Section: Discussionmentioning

confidence: 99%

Anatomical Variations of Flexor Muscles in Sole

Bojja,

Borra,

Bhingardeo

et al. 2023

J Neurol Res Rev Rep

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Variations in the intrinsic muscles of sole are relatively uncommon. There are 18 intrinsic and 4 extrinsic tendons in the sole of foot. These muscles are subjected to variations which are usually encountered during surgery or cadaveric dissections. During routine cadaveric dissection we came across a combination of variations in sole dissection. There was variation in number of flexor digitorum brevis and variation in the origin of flexor digitorum accessorius. The intertendinous connection between flexor digitorum longus and flexor hallucis longus was also observed. The flexor digitorum brevis muscle, in particular its fourth slip, has a significant clinical and surgical importance in medical practice. The knowledge of the frequency of flexor digitorum brevis fourth slip agenesis and variations in relation to the demographic characteristics of patients is of importance for tendon repair, tendon transfer or soft tissue reconstruction in foot surgery. The exact anatomical knowledge of crossing of Flexor Digitorum Longus and Flexor Hallucis Longus in the foot is essential to facilitate tendon harvesting with less morbidity and explain possible reasons for postoperative functional loss. The understanding of variations of sole muscle is very useful to orthopedic surgeons, radiologists and podiatrists for analyzing foot function and for biomechanical modeling of the foot.

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A Near-Peer Interprofessional Educational Fellowship Program for Training Pre-Clinical Medical Students in the Best Practices of Teaching and Learning

Wisco,

Moussavi,

White

2023

Med.Sci.Educ.

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Unusual bilateral variation of the flexor digitorum accessorius longus muscle and its relation on tarsal tunnel syndrome

Cited by 3 publications

References 8 publications

Bilateral Flexor Digitorum Accessorius Longus Precipitating Bilateral Tarsal Tunnel Syndrome

Bilateral Flexor Digitorum Accessorius Longus Precipitating Bilateral Tarsal Tunnel Syndrome

Anatomical Variations of Flexor Muscles in Sole

A Near-Peer Interprofessional Educational Fellowship Program for Training Pre-Clinical Medical Students in the Best Practices of Teaching and Learning

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