Hand Surgery
Radial & Ulnar Club Hand
“When the hand starts its journey with a curve, skilled care helps it reach straight success.”
What is Radial & Ulnar Club Hand?
Radial club hand (RCH) and Ulnar club hand (UCH) are rare congenital upper limb deformities in which one side of the forearm bone is underdeveloped or absent, leading to abnormal wrist deviation, shortened forearm, and hand deformity. These conditions vary in severity and may affect hand function, growth, and appearance.
Early diagnosis and staged treatment help improve alignment, function, and long-term outcomes. Despite the deformity, many children retain good finger motion and grip, and early evaluation by a qualified hand surgeon allows planning for correction, improved alignment, and functional use of the limb.
Features of RCH & UCH
Radial Club Hand (Radial Longitudinal Deficiency)
Radial club hand occurs due to partial or complete absence of the radius bone, causing the hand and wrist to bend towards the thumb side.
Common Features:
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inward deviation of the wrist.
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short forearm.
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absent or underdeveloped thumb.
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limited wrist and hand movement.
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difference in arm length.
Radial club hand is often associated with thumb hypoplasia and other congenital conditions.
Ulnar Club Hand (Ulnar Longitudinal Deficiency)
Ulnar club hand is much rarer and occurs due to partial or complete absence of the ulna bone, causing the hand to deviate towards the little-finger side.
Common Features:
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outward deviation of the wrist.
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missing or underdeveloped fingers (especially ring and little finger).
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shortened forearm.
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reduced grip strength.
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elbow or wrist instability.
Ulnar club hand is usually less commonly associated with systemic anomalies compared to radial club hand.
Treatment Options for Radial & Ulnar Club Hand
Treatment aims to improve alignment, function, and appearance of the hand and forearm while preserving growth and motion. Management depends on the severity of the deformity, the child’s age, and associated anomalies (especially in radial cases, which can occur with heart, kidney, or blood disorders).
1. Non-Surgical Management
a. Stretching and Splinting
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Early and gentle stretching exercises help improve wrist and finger position.
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Custom splints or casts are used in infancy to gradually correct deformity and maintain flexibility.
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Parents are taught simple daily exercises to reinforce progress.
b. Physiotherapy
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Promotes joint mobility and muscle strength.
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Helps prevent stiffness before and after any surgical procedure.
2. Surgical Management
a. Centralization or Radialization of the Wrist (for Radial Club Hand)
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The wrist is surgically aligned over the ulna to correct its bend and improve stability.
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Soft-tissue releases are performed to free tight structures on the radial side.
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The new position is maintained with pins and later supported by splints.
b. Tendon Transfers
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In some cases, muscles from the forearm are repositioned to rebalance the wrist and improve active motion.
c. Thumb Reconstruction or Pollicization
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If the thumb is absent or underdeveloped, a finger (usually the index) can be transferred and reshaped into a functioning thumb, greatly improving grasp.
d. Ulnar Club Hand Correction
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In milder cases, splinting and physiotherapy may suffice.
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Severe forms may need osteotomy (bone realignment) or soft-tissue procedures to improve alignment and elbow motion.
3. Timing of Surgery
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Early stretching and splinting begin within the first few months of life.
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Definitive surgery is often done between 6 months and 2 years, depending on severity and general health.
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Additional procedures for function or growth balance may follow later in childhood.
Classification
Radial Club Hand (Bayne & Klug)
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Type I – mild radial shortening.
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Type II – hypoplastic radius.
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Type III – partial absence of radius.
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Type IV – complete absence of radius.
Ulnar Club Hand (Bayne)
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Type 0 - Deficiencies of the carpus and/or hand only.
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Type I - Undersized ulna with both growth centers present.
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Type II - Part of the ulna is missing (typically the distal ulna is absent).
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Type III - Absent ulna.
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Type IV - Radiohumeral synostosis.
There is a subtype of each classification that is based on the first webspace:
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A = Normal.
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B = Mild deficiency of the webspace.
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C = Moderate to severe deficiency of the webspace.
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D = Absent webspace.
Diagnosis
Diagnosis involves:
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detailed clinical examination at birth.
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X-rays of the forearm and hand.
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screening for associated anomalies.
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pediatric and genetic assessment when indicated.
Complications of Radial & Ulnar Club Hand Surgery
While surgery and therapy greatly improve function and appearance, club hand correction can be complex, and some challenges may persist due to the underlying bone and muscle deficiencies.
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Recurrence of Deformity: The wrist may gradually tilt again as the child grows, especially in severe radial cases.
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Stiffness: Limited motion at the wrist or elbow is possible after surgery or long-standing deformity.
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Growth Disturbance: The affected forearm often remains shorter despite correction.
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Circulation or Nerve Issues: Rare, but can occur if tight tissues are released too aggressively.
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Scar Contracture: Proper therapy and splinting help prevent tightness or reduced mobility after healing.
Prognosis
With early and expert management, most children achieve:
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Improved hand alignment and appearance.
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Functional grasp and daily independence.
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Stable, balanced growth over time.
Book Consultation — Radial & Ulnar Club Hand Treatment in Pakistan
Dr. Saud Majid is a plastic and cosmetic surgeon practicing since 2020, providing specialized evaluation and surgical management of congenital forearm and hand deformities, including radial and ulnar club hand, with emphasis on early intervention, functional improvement, and long-term follow-up.
For expert assessment and treatment planning:
Consultation includes:
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detailed limb and hand assessment.
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explanation of deformity severity.
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discussion of staged treatment options.
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counseling for parents regarding growth and function.