PubMed HealthSearch

PubMed · 2983921

Congenital thumb deformities.

Abstract

The congenital deformities that affect the thumb are reviewed in terms of the clinical problem, the type of inheritance involved, the associated abnormalities seen with the particular deformity, and the indications for surgical treatment. The thumb is often the key to establishing the diagnosis of many rare syndromes. The congenital thumb may be classified for easy identification by pediatricians, family doctors, and hand surgeons as follows: inadequate thumb, fingerlike thumb, contracted thumb, crooked thumb, extra thumb, and unusual thumb.

Explore related subjects

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

V E Wood. 1985. Congenital thumb deformities.. https://pubmed.ncbi.nlm.nih.gov/2983921/

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related citations

Amniotic band sequence: Streeter's hypothesis reexamined.

Recently published reports of 54 subjects with the amniotic band syndrome (ABS) were reviewed, paying particular attention to internal anomalies. Evidence from the internal anomalies suggests that in most cases reviewed, damage occurred in a definable time period, probably prior to 26 days postconception and before the establishment of effective embryonic circulation. Most defects are explicable in terms of interference with neuropore closure, malmigration of cephalic neural crest tissue, and damage to the mesonephros consistent with local interference of the graded expression of organizational genes resulting in a local defect in the organization of the embryo.

Amniotic Band Syndrome

Nonadjacent syndactyly in the congenital constriction band syndrome.

Hand anomalies in the amniotic band sequence are frequently both complex and difficult to explain in terms of our conventional understanding of limb embryogenesis. A case manifesting pseudosyndactyly between nonadjacent fingers confirms the role of an in utero disturbance after the seventh week, in concert with close apposition between nearby but not adjacent parts.

Amniotic Band Syndrome

Pedicle scapular apophysis transplantation in congenital limb malformations.

Congenital segmental amputations are difficult to correct. Free interposition bone grafts with growth centers were tried experimentally by many investigators even at the beginning of this century. Attempts at clinical application of this principle, however, were mostly failures. More recently, with the advent of microsurgical techniques, new hope has arisen. In particular, toe transfers in children have confirmed the survival of such growth centers, as these transfers could be found to grow normally [1]. The transfer of vascularized epiphysis with its growth plate has been shown in animal limbs to achieve a rate of growth comparable with the normal site. Originally, two donor sites were used with acceptable results in children. These were the superior epiphysis of the fibula and the iliac crest. So far, in most clinical applications, they have been used as appositional transfers. However, a growth problem occurring at the donor site has proved to be quite crippling.

Amniotic Band Syndrome