Anomalous pattern of tendinous slips of peroneus tertius and extensor digitorum longus muscles in the foot- A clinically important variation

P. Abhinitha, K. G. Mohandas Rao, Ashutosh S. Rao, B. Satheesha Nayak, Surekha Shetty

Research output: Contribution to journalArticle

Abstract

The peroneus tertius (PT) is a small muscle with a small single tendon which gets inserted to the dorsal surface of the 5th metatarsal base. Normally, the tendon of extensor digitorum longus (EDL) muscle divides into 4 slips on the dorsum of the foot which go to the lateral 4 toes. Variations in the tendons of these muscles are very rare. We observed a case where the tendon of EDL divided into only 3 slips which were inserted into the 2nd, 3rd and 4th toes through dorsal digital expansion. The PT tendon was quite thick and it divided into 2 slips. The lateral slip was getting inserted to the dorsal surface of the 5th metatarsal base and medial slip was continuing on to the little toe to form the dorsal digital expansion. This variation was observed during routine dissection on the left lower limb of about 55 year old female cadaver. Such anomalies are important clinically to the treating surgeon, being a tendon of importance in normal function and surgeries of the foot. Functional significance and the clinical relevance of the variations are discussed.

Original languageEnglish
Pages (from-to)179-181
Number of pages3
JournalGulhane Medical Journal
Volume56
Issue number3
DOIs
Publication statusPublished - 2014

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Tendons
Foot
Muscles
Toes
Metatarsal Bones
Cadaver
Dissection
Lower Extremity

All Science Journal Classification (ASJC) codes

  • Medicine(all)

Cite this

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title = "Anomalous pattern of tendinous slips of peroneus tertius and extensor digitorum longus muscles in the foot- A clinically important variation",
abstract = "The peroneus tertius (PT) is a small muscle with a small single tendon which gets inserted to the dorsal surface of the 5th metatarsal base. Normally, the tendon of extensor digitorum longus (EDL) muscle divides into 4 slips on the dorsum of the foot which go to the lateral 4 toes. Variations in the tendons of these muscles are very rare. We observed a case where the tendon of EDL divided into only 3 slips which were inserted into the 2nd, 3rd and 4th toes through dorsal digital expansion. The PT tendon was quite thick and it divided into 2 slips. The lateral slip was getting inserted to the dorsal surface of the 5th metatarsal base and medial slip was continuing on to the little toe to form the dorsal digital expansion. This variation was observed during routine dissection on the left lower limb of about 55 year old female cadaver. Such anomalies are important clinically to the treating surgeon, being a tendon of importance in normal function and surgeries of the foot. Functional significance and the clinical relevance of the variations are discussed.",
author = "P. Abhinitha and {Mohandas Rao}, {K. G.} and Rao, {Ashutosh S.} and {Satheesha Nayak}, B. and Surekha Shetty",
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T1 - Anomalous pattern of tendinous slips of peroneus tertius and extensor digitorum longus muscles in the foot- A clinically important variation

AU - Abhinitha, P.

AU - Mohandas Rao, K. G.

AU - Rao, Ashutosh S.

AU - Satheesha Nayak, B.

AU - Shetty, Surekha

PY - 2014

Y1 - 2014

N2 - The peroneus tertius (PT) is a small muscle with a small single tendon which gets inserted to the dorsal surface of the 5th metatarsal base. Normally, the tendon of extensor digitorum longus (EDL) muscle divides into 4 slips on the dorsum of the foot which go to the lateral 4 toes. Variations in the tendons of these muscles are very rare. We observed a case where the tendon of EDL divided into only 3 slips which were inserted into the 2nd, 3rd and 4th toes through dorsal digital expansion. The PT tendon was quite thick and it divided into 2 slips. The lateral slip was getting inserted to the dorsal surface of the 5th metatarsal base and medial slip was continuing on to the little toe to form the dorsal digital expansion. This variation was observed during routine dissection on the left lower limb of about 55 year old female cadaver. Such anomalies are important clinically to the treating surgeon, being a tendon of importance in normal function and surgeries of the foot. Functional significance and the clinical relevance of the variations are discussed.

AB - The peroneus tertius (PT) is a small muscle with a small single tendon which gets inserted to the dorsal surface of the 5th metatarsal base. Normally, the tendon of extensor digitorum longus (EDL) muscle divides into 4 slips on the dorsum of the foot which go to the lateral 4 toes. Variations in the tendons of these muscles are very rare. We observed a case where the tendon of EDL divided into only 3 slips which were inserted into the 2nd, 3rd and 4th toes through dorsal digital expansion. The PT tendon was quite thick and it divided into 2 slips. The lateral slip was getting inserted to the dorsal surface of the 5th metatarsal base and medial slip was continuing on to the little toe to form the dorsal digital expansion. This variation was observed during routine dissection on the left lower limb of about 55 year old female cadaver. Such anomalies are important clinically to the treating surgeon, being a tendon of importance in normal function and surgeries of the foot. Functional significance and the clinical relevance of the variations are discussed.

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