1. Armbruster EJ, Tan V. Carpometacarpal joint disease:
addressing the metacarpophalangeal joint deformity.
Hand Clin. 2008;24(3):295-299, vii. doi: 10.1016/j.
hcl.2008.03.013.
2. Klinefelter R. Metacarpophalangeal hyperextension
deformity associated with trapezial-metacarpal
arthritis. J Hand Surg Am. 2011;36(12):2041-2; quiz
2043. doi: 10.1016/j.jhsa.2011.05.006.
3. Imaeda T, An KN, Cooney WP, 3rd. Functional
anatomy and biomechanics of the thumb. Hand Clin.
1992;8(1):9-15.
4. Becker SJ, Briet JP, Hageman MG, Ring D. Death, taxes,
and trapeziometacarpal arthrosis. Clin Orthop Relat
Res. 2013;471(12):3738-3744. doi: 10.1007/s11999-
013-3243-9.
5. Iyer KM, Stanley JK. Congenital absence of flexor
pollicis brevis and abductor pollicis brevis.
Hand. 1982;14(3):313-316. doi: 10.1016/s0072-
968x(82)80067-3.