Q71.4

Clinical Causes: Genetic factors or mutations that affect limb development during embryogenesis. Associated syndromes such as Holt-Oram syndrome or Fanconi anemia. Environmental influences during pregnancy, although less common. Isolated developmental anomaly with no identifiable cause.

Key Symptoms: Visible deformity of the forearm and hand, often presenting as a shortened or bowed radius. Inability to fully extend or flex the wrist. Deviation or radial deviation of the hand at the wrist. Reduced strength or mobility in the affected limb. Cosmetic concerns due to the abnormal appearance of the hand and forearm.

Diagnosis Path: Assessment begins with a detailed physical examination, noting the deformity and functional limitations. X-rays of the forearm are essential for confirming the absence or hypoplasia of the radius, and for assessing the severity of the deformity. Additional imaging or genetic testing might be performed if an associated syndrome is suspected. Early diagnosis allows for better planning of treatment and management options.

Treatment Protocols: Treatment strategies are tailored based on the severity of the condition and the functional needs of the patient. They may include: - **Conservative management:** Physical therapy to improve mobility and strength, along with orthotic devices to support function. - **Surgical interventions:** Procedures to correct deformity, lengthen the limb, or improve hand function may be considered. Common surgeries include radial deviation correction, osteotomies, or limb lengthening. - **Multidisciplinary approach:** Involving orthopedic surgeons, physical therapists, and genetic counselors can optimize outcomes. It is important to note that discussing specific treatment options with healthcare professionals is essential for individualized care planning.