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Claw finger.
Am J Occup Ther. 1978 Jan; 32(1):35-40.AJ

Abstract

Besides the known intrinsic paralytic claw hand, the claw hand without intrinsic paralysis is also observed. The mechanisms of clawing of the finger in individuals with intrinsic paralysis are reviewed and are explained by the tensing effect of the flexor tendons and the relaxation of the extensor digitorum communis tendon distal to the transverse lamina as the metacarpophalangeal joint is extended. Early recognition, prevention, and treatment are essential. The clawing of the finger in those without intrinsic paralysis is a result of maintaining a position of flexed wrist, extended metacarpophalangeal joint, and flexed interphalangeal joints; thus an extension contracture of the metacarpophalangeal joint may develop. Experiments show that this contracture blocks not only the action of the extensor digitorum communis tendon, but also the interossei in finger extension. Early proper positioning and exercises may prevent the deformity.

Authors

No affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

629177

Citation

Mentari, A. "Claw Finger." The American Journal of Occupational Therapy : Official Publication of the American Occupational Therapy Association, vol. 32, no. 1, 1978, pp. 35-40.
Mentari A. Claw finger. Am J Occup Ther. 1978;32(1):35-40.
Mentari, A. (1978). Claw finger. The American Journal of Occupational Therapy : Official Publication of the American Occupational Therapy Association, 32(1), 35-40.
Mentari A. Claw Finger. Am J Occup Ther. 1978;32(1):35-40. PubMed PMID: 629177.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Claw finger. A1 - Mentari,A, PY - 1978/1/1/pubmed PY - 1978/1/1/medline PY - 1978/1/1/entrez SP - 35 EP - 40 JF - The American journal of occupational therapy : official publication of the American Occupational Therapy Association JO - Am J Occup Ther VL - 32 IS - 1 N2 - Besides the known intrinsic paralytic claw hand, the claw hand without intrinsic paralysis is also observed. The mechanisms of clawing of the finger in individuals with intrinsic paralysis are reviewed and are explained by the tensing effect of the flexor tendons and the relaxation of the extensor digitorum communis tendon distal to the transverse lamina as the metacarpophalangeal joint is extended. Early recognition, prevention, and treatment are essential. The clawing of the finger in those without intrinsic paralysis is a result of maintaining a position of flexed wrist, extended metacarpophalangeal joint, and flexed interphalangeal joints; thus an extension contracture of the metacarpophalangeal joint may develop. Experiments show that this contracture blocks not only the action of the extensor digitorum communis tendon, but also the interossei in finger extension. Early proper positioning and exercises may prevent the deformity. SN - 0272-9490 UR - https://www.unboundmedicine.com/medline/citation/629177/Claw_finger_ DB - PRIME DP - Unbound Medicine ER -