A Review of Extensor Hallucis Longus Variants Featuring a Novel Extensor Primi Internodii Hallucis Muscle Merging With Extensor Hallucis Brevis

The Journal of Foot and Ankle Surgery : Official Publication of the American College of Foot and Ankle Surgeons
Matthew J ZdillaH Wayne Lambert

Abstract

The extensor hallucis longus (EHL) muscle/tendon complex has been used in a variety of tendon transfer and tenodesis surgeries to correct iatrogenic hallux varus deformity, equinovarus foot deformity, clawed hallux associated with a cavus foot, and dynamic hyperextension of the hallux and, even, to prevent pedal imbalance after transmetatarsal amputation. Although it is usually considered a unipennate muscle inserting into the dorsum of the base of the distal phalanx of the hallux, a vast majority of EHL muscles possess ≥1 accessory tendinous slips that insert into other neighboring bones, muscles, or tendons, which can complicate these surgeries. The present report reviewed the reported data on EHL variants and describe a new variant, in which the tendons of the extensor primi internodii hallucis muscle of Wood and extensor hallucis brevis muscle merged together proximal to the tarsometatarsal (Lisfranc) joint, a site of rupture for extensor tendons of the foot. The reported variant might have contributed to the development of the clawed hallux seen in our patient and could complicate its operative management by mimicking the normal extensor digitorum longus tendon. Knowledge of the EHL variants and the particular muscular pat...Continue Reading

Citations

Apr 25, 2018·The Journal of Chiropractic Education·Logan S BaleNaomi M Enos
Sep 5, 2019·Surgical and Radiologic Anatomy : SRA·Jose M EgeaJosé Prados
Jul 4, 2019·BMC Musculoskeletal Disorders·Łukasz OlewnikMirosław Topol
Oct 14, 2020·Surgical and Radiologic Anatomy : SRA·Jeong-Hyun ParkJaeho Cho
Jan 12, 2021·Surgical and Radiologic Anatomy : SRA·Kuen-Cherng LaiHan-Chen Ho
May 17, 2021·Annals of Anatomy = Anatomischer Anzeiger : Official Organ of the Anatomische Gesellschaft·Nicol ZielinskaŁukasz Olewnik

❮ Previous
Next ❯

Related Concepts

Related Feeds

Birth Defects

Birth defects encompass structural and functional alterations that occur during embryonic or fetal development and are present since birth. The cause may be genetic, environmental or unknown and can result in physical and/or mental impairment. Here is the latest research on birth defects.

Related Papers

The Journal of Foot and Ankle Surgery : Official Publication of the American College of Foot and Ankle Surgeons
Tun Hing Lui
The Journal of Bone and Joint Surgery. American Volume
K A Johnson, P V Spiegl
© 2022 Meta ULC. All rights reserved