Thenar insertion of abductor pollicis longus accessory tendons and thumb carpometacarpal osteoarthritis

Citation
Ms. Roh et al., Thenar insertion of abductor pollicis longus accessory tendons and thumb carpometacarpal osteoarthritis, J HAND S-AM, 25A(3), 2000, pp. 458-463
Citations number
32
Categorie Soggetti
Ortopedics, Rehabilitation & Sport Medicine
Journal title
JOURNAL OF HAND SURGERY-AMERICAN VOLUME
ISSN journal
03635023 → ACNP
Volume
25A
Issue
3
Year of publication
2000
Pages
458 - 463
Database
ISI
SICI code
0363-5023(200005)25A:3<458:TIOAPL>2.0.ZU;2-U
Abstract
Although the etiology of osteoarthritis of the thumb carpometacarpal (CMC) joint remains unclear, some theories have focused on variations in the loca l anatomy of the abductor pollicis longus tendon insertion. This cadaver st udy of 68 specimens analyzed the relationship between a thenar insertion of an accessory abductor pollicis longus tendon and the presence and severity of thumb CMC osteoarthritis. The joint cartilage surfaces were visually gr aded for degenerative changes. Thirty-five of 68 specimens (51%) had a then ar insertion, most frequently inserting on either the abductor pollicis bre vis or opponens pollicis fascia or muscle belly. No significant association between a thenar insertion and thumb CMC arthritis was observed. Conversel y, increasing age was noted to have a significant association with degenera tive joint disease. Thus, these findings indicate that a thenar slip of the abductor pollicis longus tendon does not correlate with the presence or se verity of CMC osteoarthritis. (J Hand Surg 2000;25A:458-463. Copyright (C) 2000 by the American Society for Surgery of the Hand.).