TFCC Injury
Upper LimbOverview
TFCC injury is a common cause of ulnar-sided wrist pain affecting the cartilage, ligaments, and tendons that stabilize the distal radioulnar joint (DRUJ) and ulnar wrist. Injuries may be acute traumatic or chronic degenerative, with variable presentations from mild inflammation to complete ligamentous disruption. Accurate diagnosis and early intervention are crucial to prevent chronic instability and functional impairment.
Pathophysiology
The TFCC acts as a shock absorber and stabilizer for the distal radioulnar joint. Acute injuries typically result from forced supination with wrist extension (falling on outstretched hand) or repetitive rotational activities causing microtrauma to the triangular fibrocartilage disc, ulnocarpal ligaments (ulnolunate, ulnotriquetral), and the dorsal/volar radioulnar ligaments. Chronic injuries develop from repetitive stress in racquet sports, gymnastics, or occupational activities. Degenerative tears are common with aging and may coexist with ulnar impaction syndrome.
Patient Education
The TFCC is a vital stabilizer on the inner (pinky) side of your wrist that absorbs shock and controls rotation; protecting it from twisting forces and impact during activity is essential for recovery and prevention of chronic instability.
Typical Presentation
Site
Ulnar-sided wrist pain, particularly over the ulnar fovea (between ulnar head and pisiform); may radiate into the forearm or hand
Quality
Sharp, clicking, catching, or dull aching pain; sensation of instability or 'clunking' during rotation
Intensity
Mild to moderate (3-7/10) in chronic cases; severe (7-10/10) in acute traumatic injuries; often increases with activity and improves with rest
Aggravating
Gripping, twisting/rotation movements (especially supination with ulnar deviation), ulnar deviation, weight-bearing through extended wrist, racquet sports, repetitive pronation/supination
Relieving
Rest, immobilization, ice application, anti-inflammatory medications, avoiding rotational activities
Associated
Weakness in grip and pinch strength, swelling over ulnar aspect of wrist, positive ulnocarpal fovea sign, positive TFCC stress test, clicking or clunking sensation with forearm rotation, possible loss of pronation/supination range
Orthopaedic Tests
Ulnar Fovea Sign
Procedure
Palpate the ulnar fovea (depression between the ulnar head and pisiform) while the wrist is in neutral position with the forearm supinated. Apply gentle pressure to assess for tenderness and swelling.
Positive Finding
Tenderness, swelling, or fullness in the ulnar fovea; loss of the normal concavity
Sensitivity / Specificity
81% / 75%
Reiman M, Goode AP, Cook CE, et al., 2015, J Hand Surg
Interpretation
Suggests central TFCC injury or ulnar-sided wrist pathology; helpful screening test but not diagnostic alone
Ulnocarpal Stress Test (ULCT / Ulnar Stress Test)
Procedure
Patient seated with forearm supinated and elbow flexed to 90°. Grasp the wrist with one hand supporting the distal forearm and apply axial loading while passively moving the wrist from radial to ulnar deviation.
Positive Finding
Ulnar-sided wrist pain, clicking, clunking, or reproduction of symptoms
Sensitivity / Specificity
73% / 68%
Interpretation
Suggests TFCC injury or ulnolunate ligament disruption; reasonable sensitivity but modest specificity; often combined with other tests
Triquetral Lift Test (Lunotriquetral Ballottement Test)
Procedure
Patient's wrist in neutral; stabilize the lunate on the dorsal aspect with one thumb while using the other thumb to lift the triquetrum dorsally from its palmar aspect, assessing for abnormal translation.
Positive Finding
Excessive dorsal displacement of the triquetrum, clicking, clunking, or pain
Sensitivity / Specificity
63% / 75%
Interpretation
Suggests lunotriquetral ligament injury; modest sensitivity limits its use as a screening tool
Supination Lift Test (SLIL Test)
Procedure
Patient supinates the forearm maximally against gravity or manual resistance with the elbow flexed and wrist neutral; observe for inability to maintain supination or pain.
Positive Finding
Weakness or inability to resist supination, pain on the ulnar side of the wrist
Sensitivity / Specificity
78% / 73%
Interpretation
Tests integrity of TFCC and its contribution to supination; positive result suggests TFCC involvement
Fovea Sign (Compression)
Procedure
Perform direct palpation and gentle compression of the area between the ulnar head and pisiform (ulnar fovea) while simultaneously assessing for swelling or fluid accumulation by comparing bilaterally.
Positive Finding
Asymmetric fullness, edema, or tenderness in the ulnar fovea; reproduction of ulnar-sided wrist pain
Sensitivity / Specificity
81% / 75%
Reiman M, Goode AP, Cook CE, et al., 2015, J Hand Surg
Interpretation
High sensitivity for TFCC pathology; considered one of the more sensitive physical examination findings for central TFCC tears
Extensor Carpi Ulnaris (ECU) Subluxation Test
Procedure
Patient actively supinates and pronates the forearm with the wrist in neutral or slight dorsiflexion while observing and palpating the ECU tendon in its groove on the dorsal ulnar aspect of the wrist.
Positive Finding
Visible or palpable subluxation of the ECU tendon from its groove during forearm rotation; reproduction of clicking or pain
Sensitivity / Specificity
52% / 88%
Interpretation
High specificity suggests ECU subluxation or TFCC injury affecting the ECU subsheath; lower sensitivity means negative test does not rule out pathology
⚠ Red Flags
- •Severe swelling and bruising suggesting acute ligamentous rupture or fracture
- •Signs of vascular compromise (pale, cold hand; diminished radial/ulnar pulses)
- •Complete loss of forearm pronation/supination suggesting acute DRUJ dislocation
- •History of high-energy trauma with severe mechanism
- •Systemic inflammatory disease presentation (polyarticular involvement, morning stiffness >1 hour)
⚡ Yellow Flags
- •Work-related injury with pending compensation claims or litigation
- •Psychosocial distress or catastrophizing about wrist function
- •Excessive health anxiety about cancer or serious pathology
- •Poor adherence to previous treatment recommendations
- •Chronic widespread pain or history of fibromyalgia
- •Secondary gain from symptom presentation
Osteopathic Techniques
Region
Distal radioulnar joint and TFCC
Technique
Articulation
Rationale
Gentle oscillatory movements of the DRUJ promote synovial fluid nutrition, reduce pain, and improve proprioceptive feedback while respecting TFCC integrity in early phases of recovery
Region
Forearm (flexor and extensor compartments)
Technique
Soft Tissue
Rationale
Reduces muscular tension and trigger points in pronators/supinators (pronator teres, supinator, flexor carpi ulnaris) to decrease compensatory stress on the TFCC and improve fascial mobility
Region
Distal radioulnar joint
Technique
MET
Rationale
Muscle energy techniques to the forearm rotators restore balanced pronation/supination without aggressive mobilization, reducing DRUJ hypermobility and allowing early proprioceptive training
Region
Wrist and ulnocarpal complex
Technique
Functional
Rationale
Functional techniques maintain the wrist in positions of comfort while gently encouraging normal arthrokinematics, reducing pain and facilitating neural motor control without triggering protective spasm
Region
Cervical spine and upper thoracic
Technique
Articulation
Rationale
Addresses upper kinetic chain dysfunction and postural adaptations that may increase compensatory stress through the wrist, particularly in desk workers or those with poor posture
Region
Forearm lymphatic drainage
Technique
Lymphatic
Rationale
Gentle lymphatic drainage from the forearm and wrist reduces local swelling, improves tissue fluid dynamics, and supports the inflammatory phase of healing without aggressive mobilization
Add-On Approaches
Chinese Medicine
Acupuncture to LI-5 (Yangxi) and TE-3 (Zhongzhu) points combined with TCM assessment of qi and blood stagnation in the Large Intestine and Triple Energizer meridians; moxibustion may support yang qi in chronic cases
Chiropractic
HVLA manipulation of the DRUJ and wrist (if appropriate after imaging), combined with proprioceptive neuromuscular facilitation (PNF) patterns for forearm rotation to restore normal joint mechanics
Physiotherapy
Progressive resistance training for forearm supinators and pronators, proprioceptive training via unstable surface exercises, functional grip strengthening, and activity-specific rehabilitation for sport or occupation
Remedial Massage
Deep tissue massage to flexor carpi ulnaris, extensor carpi ulnaris, and extensor digitorum with emphasis on reducing fascial restrictions and releasing trigger points that contribute to TFCC overload
Rehabilitation Exercises
Gentle Forearm Pronation/Supination Pendulums
Flexor Carpi Ulnaris Stretch (Wrist Extension with Radial Deviation)
Extensor Carpi Ulnaris Stretch (Wrist Flexion with Radial Deviation)
Forearm Supination with Dumbbell (Thumbs-Up Position)
Forearm Pronation with Dumbbell (Thumbs-Down Position)
Grip Strengthening with Therapy Ball or Putty
Wrist Radial/Ulnar Deviation Resistance with Dumbbell
Single-Arm Stability Ball Weight Support (Modified)
Wrist Proprioception Exercises on Unstable Surface (Wobble Board with Hand Support)
Cervical Spine Postural Re-education and Scapular Stabilization
Resisted Forearm Rotation with Resistance Band
Sport-Specific or Activity-Specific Wrist Stabilization Training (Racquet Swing Simulation, Gripping Patterns)
Referral Criteria
- •Persistent ulnar-sided wrist pain unresponsive to conservative management after 6-8 weeks
- •Clinical suspicion of DRUJ dislocation or fracture (imaging required)
- •Significant functional loss or inability to perform occupation/sport despite rehabilitation
- •Suspected complete TFCC tear with instability (may require surgical consultation)
- •Signs of vascular or nerve compromise
- •Evidence of systemic inflammatory disease or polyarticular involvement
- •Imaging findings requiring specialist interpretation (MRI or MR arthrography)
- •Recurrent instability episodes or chronic DRUJ hypermobility unresponsive to proprioceptive training