Kienböck's Disease

Upper Limb

Overview

Kienböck's disease is idiopathic avascular necrosis of the lunate carpal bone, resulting in progressive collapse and degenerative changes of the wrist. The condition typically affects middle-aged adults and can lead to significant functional impairment and arthritis if untreated. Early diagnosis and intervention are critical to prevent disease progression and preserve wrist function.

Pathophysiology

Kienböck's disease develops due to disrupted blood supply to the lunate bone, leading to osteonecrosis and progressive structural failure. The lunate's retrograde blood supply and its central position in the proximal carpal row make it vulnerable to ischaemic injury. Proposed aetiological factors include relative negative ulnar variance, repetitive trauma, and vascular insufficiency. As necrosis progresses through four pathological stages—initial ischaemia, fragmentation, collapse, and secondary arthritis—the lunate loses architectural integrity, causing pain, loss of motion, and eventual wrist dysfunction.

Patient Education

Kienböck's disease requires early diagnosis and appropriate medical management to prevent progression; avoid high-impact activities and repetitive wrist loading, and maintain regular follow-up imaging to monitor disease stage.

Typical Presentation

Site

Central wrist pain over the lunate, typically on the palmar aspect; dorsal wrist swelling possible; pain may be localised to the third metacarpal axis

Quality

Dull, aching pain with superimposed sharp discomfort on certain movements; progressive stiffness and clicking sensations

Intensity

Mild to moderate initially (Stage I-II), progressing to severe pain with functional loss in advanced stages; pain typically 4-7/10 initially, increasing with disease progression

Aggravating

Gripping activities, wrist extension and radial deviation, repetitive loading, forceful pinching, prolonged wrist use

Relieving

Rest, immobilisation, ice application, anti-inflammatory medications, wrist support or splinting

Associated

Progressive loss of grip strength, reduced wrist range of motion (especially extension), swelling and stiffness, clicking or clunking sensation, possible carpal tunnel syndrome symptoms, eventual post-traumatic arthritis

Orthopaedic Tests

Scaphoid Shift Test (Watson's Test)

Procedure

Patient's wrist is passively moved from radial to ulnar deviation while examiner applies pressure to the scaphoid tubercle. A positive test produces a clunk or sudden shift as the scaphoid subluxates dorsally.

Positive Finding

Sudden dorsal displacement or 'clunk' of the scaphoid with reproduction of patient apprehension or pain

Sensitivity / Specificity

72% / 98%

Watson & Weinzweig, 1997, Hand Clinics

Interpretation

Indicates scaphoid instability; may be associated with chronic wrist instability patterns seen in advanced Kienböck's disease with secondary carpal collapse

Lunate Ballottement Test

Procedure

Stabilize the radius and ulna with one hand; with the other hand, attempt to mobilize the lunate anteriorly and posteriorly using gentle manipulation between thumb and fingers on the dorsal and volar wrist.

Positive Finding

Excessive laxity or hypermobility of the lunate bone compared to the contralateral side, or reproduction of patient's pain

Sensitivity / Specificity

Unknown / Unknown

Interpretation

Assesses lunate stability; excessive mobility suggests advanced disease with ligamentous disruption and carpal collapse

Axial Load Test (Lunate Compression)

Procedure

Patient's wrist is positioned in neutral or slight extension; examiner applies axial compression through the third metacarpal or applies direct pressure over the dorsal lunate while observing for pain reproduction.

Positive Finding

Sharp pain over the lunate fossa or reproduction of patient's functional pain with axial loading

Sensitivity / Specificity

Unknown / Unknown

Interpretation

Localizes lunate pathology and increases suspicion for Kienböck's disease; correlates with necrotic bone and cartilage degeneration

Grip Strength Testing (Dynamometry)

Procedure

Patient performs maximal grip strength measurement using a hydraulic hand dynamometer in standardized position (shoulder adducted, elbow 90°, wrist neutral). Compare bilateral hands and document multiple trials.

Positive Finding

Grip strength reduction >10–15% compared to contralateral side, or progressive decline on serial testing

Sensitivity / Specificity

Unknown / Unknown

Interpretation

Objective measure of functional wrist weakness; reflects pain-limited function and advanced disease with significant carpal involvement

Radial-Sided Wrist Pain Provocation (Combined Test)

Procedure

Patient performs wrist extension and radial deviation against resistance or holds wrist in extension-radial deviation position while examiner applies gentle overload. Pain is assessed over the lunate/radial-midcarpal joint.

Positive Finding

Localized dorsal radial-sided wrist pain, particularly over the lunate or scapholunate interval

Sensitivity / Specificity

Unknown / Unknown

Interpretation

Reproduces symptoms related to lunate pathology and advanced carpal involvement; non-specific but clinically useful for correlating imaging findings with patient complaints

⚠ Red Flags

  • •Rapidly progressive wrist pain with acute collapse on imaging suggesting advanced stage disease requiring urgent surgical consultation
  • •Signs of compartment syndrome or acute vascular compromise (colour changes, temperature changes, pins and needles)
  • •Severe functional loss with inability to perform activities of daily living requiring specialist medical review
  • •Imaging evidence of Stage III-IV disease (lunate collapse, scaphoid-lunate dissociation, or secondary osteoarthritis) necessitating urgent orthopaedic referral
  • •Systemic signs suggesting infection or malignancy (fever, weight loss, night sweats) requiring medical investigation

⚡ Yellow Flags

  • •Catastrophic thinking regarding wrist function and prognosis leading to activity avoidance
  • •Occupational stress with job demands requiring heavy wrist loading incompatible with conservative management
  • •Psychosocial distress related to potential loss of occupational capacity or hand dominance involvement
  • •Poor adherence to activity modification or splinting recommendations
  • •Kinesiophobia (fear of movement) limiting rehabilitation engagement

Osteopathic Techniques

Region

Wrist and carpal joints

Technique

Soft Tissue

Rationale

Gentle soft tissue mobilisation of forearm flexors, extensors, and intrinsic hand muscles reduces muscular guarding and improves local circulation to support vascular supply; avoids aggressive pressure over lunate

Region

Wrist and midcarpal joints

Technique

Articulation

Rationale

Gentle oscillatory articulation of non-compromised carpal joints maintains accessory motion, reduces compensatory stiffness in adjacent joints, and promotes synovial fluid nutrition to the lunate without provocative loading

Region

Forearm and elbow

Technique

MET

Rationale

Muscle energy techniques to the pronator and supinator muscles and elbow flexors reduce compensatory muscular tension, improve forearm range of motion, and reduce secondary wrist loading patterns

Region

Cervical spine and upper thoracic spine

Technique

Soft Tissue

Rationale

Treatment of cervical and thoracic tension improves postural alignment and reduces aberrant upper limb neurodynamics that can exacerbate wrist symptoms and limit functional recovery

Region

Forearm compartments and lymphatic drainage pathways

Technique

Lymphatic

Rationale

Gentle lymphatic drainage techniques reduce inflammation and swelling in the forearm and wrist, supporting the body's natural resolution of inflammatory responses without provocative movement

Region

Wrist and hand

Technique

Functional

Rationale

Functional technique positions the wrist in neutral or pain-free position, allowing gentle mobilisation within the patient's physiological range to maintain circulation and mobility without ischaemic stress

Add-On Approaches

Chinese Medicine

TCM approaches include acupuncture and moxibustion over LI-10 (Shousanli) and local wrist points to improve Qi circulation and reduce pain; herbal formulations such as Du Huo Ji Sheng Tang may support blood circulation and reduce inflammation

Chiropractic

Chiropractic care may include wrist adjustments and manipulation of the carpometacarpal and intercarpal joints to maintain biomechanical alignment, though avoided in advanced stages; wrist manipulation contraindicated in progressive disease

Physiotherapy

Physiotherapy focuses on grip strength rehabilitation, progressive loading tolerance, proprioceptive training, and activity-specific functional training within pain-free ranges; scaphoid-lunate stabilisation exercises and occupational re-training

Remedial Massage

Remedial massage targeting forearm flexors and extensors, thenar and hypothenar eminences reduces muscular tension and improves local circulation; techniques avoid direct pressure over the lunate and focus on supportive musculature

Rehabilitation Exercises

Wrist Pendulum Mobilisation

Range of MotionBeginner

Forearm Flexor Stretch (Supinated Wrist Extension)

StretchingBeginner

Forearm Extensor Stretch (Pronated Wrist Flexion)

StretchingBeginner

Wrist Circumduction in Neutral

Range of MotionBeginner

Grip Strength Training with Therapeutic Putty (Pain-Free Resistance)

StrengtheningIntermediate

Isometric Wrist Stabilisation (Four Directions)

StrengtheningIntermediate

Proprioceptive Wrist Stabilisation on Unstable Surface

BalanceIntermediate

Scapular Stabilisation and Posture Awareness

PosturalIntermediate

Progressive Wrist Loading with Progressive Resistance Band

StrengtheningAdvanced

Activity-Specific Simulation (Simulated Occupational Tasks)

FunctionalAdvanced

Upper Limb Ergometer Training (Seated Arm Cycling)

CardiovascularIntermediate

Pronation and Supination Strengthening with Progressive Resistance

StrengtheningAdvanced

Referral Criteria

  • •Initial diagnosis or suspected Kienböck's disease — refer to orthopaedic hand surgeon or rheumatologist for imaging (MRI/CT), staging, and medical management
  • •Stage I-II disease with persistent pain despite conservative management for 6-8 weeks — refer for consideration of surgical intervention (revascularisation, lunate decompression, or levelling osteotomy)
  • •Stage III-IV disease with lunate collapse or secondary osteoarthritis — refer for surgical consultation regarding arthrodesis or proximal row carpectomy
  • •Progressive functional loss or wrist instability — refer for advanced imaging and specialist assessment
  • •Suspected secondary conditions such as carpal tunnel syndrome or scaphoid-lunate dissociation — refer for nerve conduction studies or advanced imaging
  • •Psychological distress or occupational stress affecting rehabilitation — refer to occupational psychologist or vocational rehabilitation specialist
  • •Inadequate pain relief or concerning systemic symptoms — refer to general practitioner for medical review and analgesia optimisation