title: The Extensor Indicis Brevis - A Rare Variation and its Significance.
abstract: Variations in muscle attachments are valuable in interpreting rare clinical conditions. This case report discusses about the abnormal extensor indicis muscle attachment in left hand of male cadaver and its clinical relevance. The extensor indicis muscle was arising from lunate carpal bone and posterior radiocarpal ligament which further continued as short belly and had its distal attachment on the proximal phalanx of the index finger. This muscular variation has been described in earlier studies with 1.0% incidence. Abnormal origin of extensor indicis may be associated with pain and swelling at the back of the hand. This pain may be confused with other clinical conditions like synovial cyst and ganglion. Knowledge of such rare variations are useful to clinicians, surgeons, occupational and physical therapists for planning better surgical decisions.
authors.affiliation: Student, Department of Anatomy, Saveetha Medical College and Hospital , Chennai, India .
authors.forename: Rohini
authors.initials: R
authors.lastname: Arathala
authors.affiliation: Assistant Professor, Department of Anatomy, Saveetha Medical College and Hospital , Chennai, India .
authors.forename: P K
authors.initials: PK
authors.lastname: Sankaran
authors.affiliation: Professor, Department of Anatomy, Saveetha Medical College and Hospital , Chennai, India .
authors.forename: Gunapriya
authors.initials: G
authors.lastname: Ragunath
authors.affiliation: Student, Saveetha Medical College , Chennai, India .
authors.forename: Soma Sri
authors.initials: SS
authors.lastname: Harsha
authors.affiliation: Student, Saveetha Medical College , Chennai, India .
authors.forename: Tharani Sree
authors.initials: TS
authors.lastname: Sugumar
keywords: Extensor muscles; Hand muscles; Tendon graft/surgeries; Wrist pain