Q72.13 Congenital absence of thigh and lower leg with foot present, bilateral

Name of the Condition

• Congenital absence of thigh and lower leg with foot present, bilateral

Summary

Congenital absence of the thigh and lower leg with the foot present, bilateral, is a rare limb reduction defect where both lower limbs lack the thigh and lower leg segments, but the feet remain intact. This condition impacts mobility and may require medical evaluation and adaptive interventions.

Causes

The exact cause is often unknown but may involve genetic factors, disruptions in fetal limb development, or environmental influences during pregnancy. Vascular issues or amniotic band syndrome can also contribute to limb reduction.

Risk Factors

• Family history of limb abnormalities.
• Maternal exposure to certain medications, chemicals, or infections during pregnancy.
• Genetic syndromes or chromosomal abnormalities.

Symptoms

• Visible absence of the thigh and lower leg segments at birth, with the foot present on both sides.
• Potential functional limitations affecting movement or balance.
• Possible associated anomalies in other body systems.

Diagnosis

Physical examination immediately after birth to assess limb structure. Prenatal ultrasound may detect limb differences before delivery. Imaging studies (e.g., X-rays) or genetic testing to evaluate severity and rule out syndromes.

Treatment Options

• Prosthetic fitting to improve mobility and function.
• Orthotic devices to support limb alignment and stability.
• Physical therapy to enhance motor skills and strength.
• Surgical interventions for associated anomalies, if present.

Prognosis and Follow-Up

Prognosis depends on the severity of the defect and associated conditions. Regular follow-up with a multidisciplinary team (e.g., orthopedics, physical therapy) is essential to monitor development and adjust interventions as needed.

Complications

• Reduced mobility or functional limitations.
• Potential for secondary musculoskeletal issues due to altered biomechanics.
• Psychological or social challenges related to limb difference.

Lifestyle & Prevention

• Early intervention with physical therapy to optimize function.
• Use of adaptive equipment to support daily activities.
• Genetic counseling for families with a history of limb abnormalities.

When to Seek Professional Help

Seek medical evaluation if limb abnormalities are noted at birth or if there are concerns about mobility, balance, or associated symptoms.

Tips for Medical Coders

Document the bilateral nature of the condition and confirm the presence of the foot to ensure accurate coding. Include details about associated anomalies or syndromes, if applicable, to support comprehensive coding.