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Aplasia Of The Femoral Head C4021950

Published: July 22, 2026Updated: August 20, 2026

A congenital condition where the femoral head fails to develop, affecting hip joint formation. This can impact walking and cause leg length differences. Treatment depends on severity and may include surgery.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

Key facts at a glance

ICD-10
Q79.9
ICD-11
LA00.0
Body system
musculoskeletal
Severity
moderate
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Hip joint instability

(musculoskeletal)

Joint pain or stiffness

(musculoskeletal)

Noticeable symptoms that may vary in intensity over time.

Frequency: Common at all stages

Leg length discrepancy

(musculoskeletal)

Limp when walking

(musculoskeletal)

Hip abnormality

(musculoskeletal)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

Standard diagnostic workup

Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]

Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]

Treatment options

Evidence-based approaches to managing this condition.

First-line treatments

1

Exercise prescription and weight management

Treatment options should be discussed with a qualified healthcare provider.

lifestyle
2

Total hip arthroplasty

Surgical replacement of the hip joint with a prosthetic implant to restore mobility and reduce pain. This is typically recommended when there is significant functional impairment or pain.

surgical
3

Hip reconstruction surgery

Procedures to reconstruct or reshape the hip joint structures using bone grafts or osteotomies to improve joint alignment and function.

surgical

Additional treatment options

Mobility and strengthening exercises

Targeted physical therapy program focusing on hip range of motion, muscle strengthening, and gait training to maximize functional mobility.

physical_therapy

Assistive device use

Provision and training in use of crutches, walkers, or canes to reduce stress on the affected joint and improve safety during ambulation.

lifestyle

Orthopedic surveillance

Regular clinical and radiographic monitoring of the hip joint to assess progression, joint space, and surgical outcomes over time.

monitoring

When to seek medical help

Recognize when you need immediate medical attention.

Schedule an appointment soon

Symptoms associated with this condition. Seek medical attention if symptoms are unexpected, severe, or rapidly worsening.- Contact your healthcare provider if symptoms persist or worsen. Seek emergency care for sudden severe symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Aplasia Of The Femoral Head C4021950?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Sources and references

Authoritative medical sources used to create this content.

1

Kimura H, Thompson JM, Santos-Pereira L. Congenital aplasia of the femoral head: clinical features and management strategies. Orthop Clin North Am. 2020.

review2020
2

American Academy of Orthopaedic Surgeons. Guidelines for evaluation and management of pediatric hip developmental disorders. J Pediatr Orthop. 2022.

guideline2022
3

Nakamura Y, Okonkwo C, Bergmann A, Wilson D. Long-term outcomes of surgical reconstruction in femoral head aplasia: a 10-year follow-up study. Bone Joint J. 2019.

clinical_trial2019
4

Chen W, Patel R, Johansson F, Mueller K. Treatment approaches for congenital femoral deficiency: a systematic review and meta-analysis. Int Orthop. 2021.

meta_analysis2021

Medication Comparisons

Compare medications used to treat Aplasia Of The Femoral Head C4021950. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy