Thumb hypoplasia is a spectrum of congenital abnormalities of the thumb varying from small defects to absolute retardation of the thumb. It can be isolated, when only the thumb is affected, and in 60% of the cases it is associated with radial dysplasia (or radial club, radius dysplasia, longitudinal radial deficiency). Radial dysplasia is the condition in which the forearm bone and the soft.
CLASSIFICATION. The Blauth classification of grades of thumb hypoplasia (1 to 5)(3,4) (Figure 1) has undergone a number of modifications.That of Manske is most commonly quoted in the literature, but does involve significant changes to the concepts outlined by Blauth.() Blauth viewed the hypoplastic thumb according to grades of severity, with increasing bone and joint hypoplasia accompanied by.
The Blauth classification of hypoplastic grades 1-5 is based on the work of Mueller who proposed the concept of an increasing severity of hypoplasia of all thumb components, soft tissue and bone, with increasing severity of insult. Manske and others have sub-divided grade 3 in an attempt to compare like with like but this classification does alter the integrity of the Blauth system which.Modified Blauth classification of hypoplastic thumb: I: Minimal shortening and narrowing: II: Thumb-Index web space narrowing Hypoplastic intrinsic thenar muscles Metacarpophalangeal joint instability: III: A: Type II features, plus extrinsic tendon abnormalities and Hypoplastic metacarpal, stable carpometacarpal: B: Type II features, plus extrinsic tendon abnormalities and Partial.Thumb hypoplasia, before surgery. The degree to which your child’s thumb is underdeveloped can vary; it may only be slightly smaller in size than normal, or missing entirely (a condition known as thumb aplasia). Thumb hypoplasia is a rare condition and occurs in about 1 in 100,000 infants. It is equally common in males and females. In.
Isolated thumb hypoplasia represents radial deficiency in its mildest form, thumb hypoplasia and carpal anomalies an intermediate form, and absence of the thumb, the radial side of the carpus, and the radius the complete manifestation of this condition. 15 To incorporate the entire spectrum of radial longitudinal deficiencies, the classification system of Bayne and Klug 16 was modified. 15.
When a patient presents with thumb hypoplasia, it is helpful to outline a treatment plan based on the classification schemes presented earlier. In children with associated syndromes, the timing of surgical management of the thumb must consider those coupled conditions. With this in mind, there is no uniformly accepted age to begin surgical treatment of the hypoplastic thumb. However, if staged.
The “Hypoplastic” Thumb Assessment and outcome following reconstruction. Longitudinal radial deficiency classification Thumb hypoplasia is often part of a radial (pre-axial) underdevelopment of the upper extremity. Several classification systems have been developed to classify these longitudinal radial deficiencies. The most commonly used, is the system by Bayne and Klug (15) which has.
A 2-year-old boy with grade 3 hypoplastic thumb (Blauth's classification) underwent reconstruction in two stages. Stage 1 was an abductor digiti quinti musculocutaneous flap, first web space.
Hypoplastic left heart syndrome occurs when parts of the left side of the heart are significant undeveloped including the left ventricular cavity and mass. The condition is present at birth. Usually, babies with hypoplastic left heart syndrome the mitral valve is not formed, the aortic valve is not formed and the ascending portion of the aorta is underdeveloped or is too small. Often, babies.
Thumb hypoplasia (also called hypoplastic thumb) happens before a baby is born. When a baby's hands are first forming, they are shaped like mittens. Then the fingers and thumb develop. In babies with thumb hypoplasia, the thumb does not form completely. Thumb hypoplasia is not caused by anything a mother did or did not do while pregnant.
Michels Caskey syndrome is a rare disorder that combines spinal and skeletal abnormalities, especially of the thumbs, with abnormal or absent female reproductive organs. Examples include the absence of a cervix and upper vagina or abnormalities of the uterus or vagina. Symptoms may also include scoliosis and primary amenorrhea.Synonyms include hypoplastic thumb Mullerian aplasia, and Mullerian.
Hypoplastic thumb -- mullerian aplasia: Introduction. Hypoplastic thumb -- mullerian aplasia: A rare disorder characterized by an underdeveloped thumb, vertebral abnormalities and abnormal development or lack of a part of the female reproductive system (uterus, cervix and upper vagina). The external genitalia appear normal and the ovaries usually function normally.
Ward et al. (1992) described a sister and brother with upper limb defects, developmental delay, central hearing loss, unilateral poorly developed antihelix, and bilateral choroid coloboma. Height and weight were below the third percentile. The girl had a hypoplastic right thumb, poorly developed antihelix of the right ear, and cataract in the right eye.
Hypoplasia in Other Major Organ Systems. Hypoplastic left heart syndrome: This is when one side of the heart does not form fully while the body is still forming in the womb. Hypoplastic left heart syndrome (HLHS) occurs on the left side, in either the left ventricle, mitral valves, aortic valve, or aorta, rendering the organ unable to properly pump blood.
Hypoplastic thumbs -- hydranencephaly: Introduction. Hypoplastic thumbs -- hydranencephaly: A very rare syndrome characterized mainly by underdeveloped thumb and abnormal brain development where the cerebral space is filled with cerebrospinal fluid instead of brain tissue. More detailed information about the symptoms, causes, and treatments of Hypoplastic thumbs -- hydranencephaly is available.