title: Intra-articular ossicle in interphalangeal joint of the great toe and clinical implication.
abstract: Failure of closed reduction for an interphalangeal joint dislocation of the great toe resulted from an intra-articular ossicle interposed between the articular cartilages of the phalanges. The knowledge concerning the intra-articular ossicle is unclear. A study was thus carried out on 100 fresh great toes to document the appearance, number, size, and location of the intra-articular ossicle found in the interphalangeal joint of the great toe. Roentgenographic studies of the joint revealed 86% of bony mass representing either the sesamoid bone or the intra-articular ossicle. Anatomical studies revealed no sesamoid bone in the flexor hallucis longus tendon. There was 88% of intra-articular ossicle on the dorsal surface of the plantar capsule of the interphalangeal joint. A medial surgical approach to reduce the irreducible dislocation is thus suggested as easier and safer than other approaches.
authors.affiliation: Department of Anatomy, Faculty of Medicine, ChiangMai University, ChaingMai, Thailand.
authors.forename: P
authors.initials: P
authors.lastname: Suwannahoy
authors.forename: T
authors.initials: T
authors.lastname: Srisuwan
authors.forename: N
authors.initials: N
authors.lastname: Pattamapaspong
authors.forename: Pasuk
authors.initials: P
authors.lastname: Mahakkanukrauh
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002102:Cadaver; D004210:Dissection; D005260:Female; D006214:Hallux / Q000033:anatomy & histology / Q000000981:diagnostic imaging; D006801:Humans; D004204:Joint Dislocations / Q000000981:diagnostic imaging / Q000601:surgery; D007594:Joint Loose Bodies / Q000000981:diagnostic imaging* / Q000473:pathology; D008023:Ligaments, Articular / Q000033:anatomy & histology / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D011859:Radiography; D012716:Sesamoid Bones / Q000033:anatomy & histology* / Q000000981:diagnostic imaging*; D013710:Tendons / Q000033:anatomy & histology / Q000000981:diagnostic imaging; D014033:Toe Joint / Q000033:anatomy & histology* / Q000000981:diagnostic imaging*; D055815:Young Adult