Four cases of variations in the forearm extensor musculature in a study of hundred limbs and review of literature

Rao, Mohandas KG and Vollala, Venkata Ramana and Bhat, Seetharama M and Bolla, Sreenivas and Samuel, Vijay Paul and Pamidi, Narendra (2006) Four cases of variations in the forearm extensor musculature in a study of hundred limbs and review of literature. Indian Journal of Plastic Surgery, 39 (2). pp. 141-147.

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All surgeons must bear in mind the existence of muscular variations when performing common tendon transfers. Presence of additional bellies and tendons of existing muscles or presence of additional muscles in unusual locations might misguide a surgeon, during surgery and also during diagnosis. In the present paper we are reporting four cases of variations encountered during the study of extensor muscles of the forearm in 100 limbs. In case 1, additional bellies of extensor carpi radialis longus and extensor carpi radialis brevis and multiple tendons of insertion of abductor pollicis longus were observed in a single limb. In case 2, an additonal belly of the abductor pollicis longus was observed. In case 3, a short muscle on the dorsum of the hand going to the index finger [extensor indicis brevis (EIB)]was found in addition to the normal extensor indicis (EI). It was also observed that some of the most superficial fleshy fibers of EIB were getting inserted into the tendon of EI. In case 4, a rare incidence of extensor digiti medii proprius was observed. Further, the related literature is reviewed and the clinical and surgical importance of these muscular variations in diagnosis and proper planning of treatment is discussed.

Item Type: Article
Uncontrolled Keywords: Abductor pollicis longus, extensor carpi radialis brevis, extensor carpi radialis longus, extensor digiti medii proprius, extensor indicis brevis.
Subjects: Medicine > MMMC Manipal > Anatomy
Depositing User: KMC Manipal
Date Deposited: 31 Dec 2011 09:55
Last Modified: 31 Dec 2011 09:55

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