Jan 17, 2025 · Thumb hypoplasia is the congenital underdevelopment of the thumb frequently associated with partial or complete absence of the radius. Diagnosis is made clinically with hypoplasia of the thumb and thenar musculature. Radiographs help determine musculotendinous versus osseous deficiencies.

Thumb hypoplasia is a rare condition and occurs in about 1 in 100,000 infants. It is equally common in males and females. In approximately 60 percent of patients with thumb hypoplasia, both thumbs are affected. In some cases, a child’s other fingers may also be missing or underdeveloped.

Thumb hypoplasia means that your child’s thumb is unusually small or underdeveloped. This condition is also commonly called hypoplastic thumb. Thumb aplasia means that your child’s thumb is missing altogether.

Thumb hypoplasia is a spectrum of congenital abnormalities of the thumb varying from small defects to complete absence of the thumb. [1] It can be isolated, when only the thumb is affected, and in 60% of the cases [2] it is associated with radial dysplasia [1] (or radial club, radius dysplasia, longitudinal radial deficiency). Radial dysplasia ...

What is thumb hypoplasia? Thumb hypoplasia, also known as hypoplastic thumb, is a condition in which a child’s thumb is smaller than normal. Thumb aplasia is a condition in which the thumb is completely absent. Thumb hypoplasia or aplasia often happen in children with radial longitudinal deficiency. These conditions can be genetic and may be ...

May 24, 2016 · Thumb hypoplasia is characterized by five distinct clinical features. First, the thumb is smaller, shorter, and narrower. Second, there may be interphalangeal (IP) joint stiffness with relative paucity of the flexion and extension creases, due to underdevelopment of the extrinsic muscles.

Finger hypoplasia or thumb hypoplasia is when a baby is born with a finger or thumb that is not fully developed and is smaller in size. Finger aplasia or thumb aplasia is when a baby is born without a finger or thumb, and the digit is completely missing.

Nov 24, 2012 · Identify the various clinical types of thumb hypoplasia. Elucidate the pathoanatomy of various forms of thumb hypoplasia. Distinguish surgical treatment principles for thumb hypoplasia. Recognize the surgical treatment outcomes for thumb hypoplasia.

Hypoplastic thumb, also known as thumb hypoplasia, is a birth defect in which a child’s thumb is underdeveloped (hypoplasia) or missing (aplasia). There are five types of thumb hypoplasia and aplasia which are: The thumb is smaller than normal and there are abnormalities in …

Thumb hypoplasia refers to an abnormally small, poorly developed thumb. When there is not a thumb on the hand, it is called thumb aplasia. Thumb hypoplasia comes in different types.