TFCC Injury

Upper Limb

Overview

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

Test descriptions are written with AI assistance from standard clinical texts. Where a test lists Sources, its description has been checked against them; those sources are independent and do not endorse OsteoKit. Accuracy figures and grades (A–D) appear only when checked against the published study; tests without one are marked “No accuracy study”.

Further reading: full test procedures are described in standard clinical examination texts, e.g. Magee & Manske, Orthopedic Physical Assessment (7th ed.), and Cook & Hegedus, Orthopedic Physical Examination Tests: An Evidence-Based Approach (2nd ed.).

Contested
Reported accuracy varies widely across studies — may be strong or weak depending on population and technique
Evidence is highly heterogeneous: reported figures span from a weak (D) to a strong (A) test across studies/populations. Interpret with caution and in context.

Ulnar Fovea Sign

Procedure

Patient seated with the forearm resting in neutral. Press your thumb into the soft spot between the ulnar styloid and the flexor carpi ulnaris tendon, between the palmar surface of the ulnar head and the pisiform. Compare with the other wrist.

Positive Finding

Marked tenderness that the patient recognises as their pain, compared with the other side.

Sensitivity / Specificity

73–95%/44–87%

Reference: Tay SC, Tomita K, Berger RA. The "ulnar fovea sign" for defining ulnar wrist pain: an analysis of sensitivity and specificity. J Hand Surg Am. 2007;32(4):438-44. Schmauss D, Pöhlmann S, Lohmeyer JA, Germann G, Bickert B, Megerle K. Clinical tests and magnetic resonance imaging have limited diagnostic value for triangular fibrocartilaginous complex lesions. Arch Orthop Trauma Surg. 2016;136(6):873-80. Ou Yang O, McCombe DB, Keating C, Maloney PP, Berger AC, Tham SKY. Ulnar-sided wrist pain: a prospective analysis of diagnostic clinical tests. ANZ J Surg. 2021;91(10):2159-2162.

Interpretation

Points to a foveal (deep) tear of the TFCC attachment or an ulnotriquetral ligament injury. Also check distal radioulnar joint stability: foveal tears tend to come with an unstable DRUJ. The reference previously shown for this test could not be matched to any published paper and has been withdrawn. The original study (272 arthroscopy patients) reported 95% sensitivity and 87% specificity for foveal disruption and ulnotriquetral ligament tears. Larger later cohorts testing it against any TFCC lesion found specificity of 44–48%. It is more useful for foveal (peripheral) tears than as a general TFCC test.

Sources

No accuracy study

Ulnocarpal Stress Test (ULCT / Ulnar Stress Test)

Procedure

Hold the patient's wrist in full ulnar deviation, press along the long axis of the hand towards the forearm, then passively rotate the forearm from pronation to supination.

Positive Finding

Reproduction of ulnar-sided wrist pain, with or without a click.

Interpretation

A positive test points to the ulnocarpal region: TFCC tear, ulnocarpal impaction or lunotriquetral injury. It does not tell these apart. Follow with the fovea sign, DRUJ stability and lunotriquetral tests, and imaging if symptoms persist.

Sources

No accuracy study

Lunotriquetral Ballottement Test

Procedure

Stabilise the lunate between the thumb and index finger of one hand. With the other hand, hold the triquetrum and pisiform and move them palmar and dorsal relative to the lunate. Compare with the other wrist.

Positive Finding

Pain, more movement than on the other side, or crepitus between the lunate and triquetrum.

Interpretation

Suggests lunotriquetral ligament injury. Findings are subtle in this area, and MR arthrography or arthroscopy is usually needed to confirm it.

Sources

No accuracy study

Supination Lift Test

Procedure

Patient seated, elbows bent to 90°, forearms fully supinated. The patient places both palms flat against the underside of a heavy table (or against the examiner's hands) and lifts upwards.

Positive Finding

Pain at the ulnar side of the wrist and/or difficulty lifting on the affected side.

Interpretation

A positive test suggests a peripheral TFCC tear. Like the other ulnar-sided tests, it is best combined with the fovea sign, DRUJ stability testing and imaging. A literature search (Europe PMC, September 2026) found no study reporting the diagnostic accuracy of this test, so no figure is shown. (The previous name carried "SLIL", which refers to the scapholunate ligament on the other side of the wrist.)

Sources

No accuracy study

Extensor Carpi Ulnaris (ECU) Subluxation Test

Procedure

With the elbow bent and the wrist in slight ulnar deviation, ask the patient to move the forearm from pronation into full supination while you feel the ECU tendon over the back of the ulnar head. Adding resisted wrist extension and ulnar deviation in supination can bring the subluxation on.

Positive Finding

The ECU tendon visibly or palpably snaps out of its groove in supination and back in pronation, reproducing the patient's pain.

Interpretation

Suggests ECU subsheath injury with tendon instability — a separate problem from a TFCC tear, although both cause ulnar-sided pain and can occur together. Painless snapping in both wrists can be normal, so compare sides. A literature search (Europe PMC, September 2026) found no study reporting the diagnostic accuracy of this test, so no figure is shown.

Further reading

⚠ 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

TFCC injuries are treated first with rest, physical therapy and steroid injection; about 6 months of conservative care is reasonable if the distal radioulnar joint (DRUJ) is stable. A small non-randomised study of orthoses plus progressive strengthening and proprioception training reported better pain, function and DRUJ stability. No trials of osteopathic techniques were found.

Safety: Check DRUJ stability first. An unstable DRUJ, or failed conservative care, is a reason for a surgical opinion.

Region

Distal radioulnar and ulnocarpal joints (stable DRUJ only)

Technique

Articulation, wrist and handNo trials found

Rationale

Gentle glides of the wrist, carpal and hand joints to restore movement.

How it's done, cautions & evidence

How it's done

Passive, rhythmic, low-velocity glides of the radiocarpal, midcarpal and intercarpal joints, the distal radioulnar joint, the thumb carpometacarpal (CMC) joint and the finger joints, within or up to the end of the available range. In thumb-base osteoarthritis trials this was Maitland-style passive accessory gliding of the CMC joint.

Cautions

After a fall on the hand, rule out a fracture first: scaphoid fractures are often missed on the first X-ray, so snuffbox pain needs a splint and repeat imaging. Do not move a joint that is splinted for a tendon injury: the DIP in mallet finger, the PIP in a central slip (boutonnière) injury.

Evidence in TFCC Injury

Searched 26 Oct 2026: no trials of wrist mobilisation in TFCC injury.

Region

Forearm flexor and extensor compartments

Technique

Soft tissue, elbow and forearmNo trials found

Rationale

Soft tissue to the forearm flexor and extensor muscles that move the wrist and fingers.

How it's done, cautions & evidence

How it's done

Hands-on kneading, stroking and sustained pressure to the forearm extensor and flexor muscles, their tendon origins at the epicondyles, the supinator, the pronators and the triceps. Deep transverse friction across the tendon origin is part of the Cyriax method for lateral elbow pain.

Cautions

Avoid direct pressure on an olecranon bursitis. A red, warm, tender bursa, especially with fever, may be septic and needs medical review.

Evidence in TFCC Injury

Searched 26 Oct 2026: no trials of forearm soft tissue in TFCC injury.

Region

Forearm pronators and supinators

Technique

Muscle energy, elbow and forearmNo trials found

Rationale

Muscle energy technique to ease tight forearm muscles that act on the wrist (wrist extensors or flexors, pronators or supinators).

How it's done, cautions & evidence

How it's done

The wrist or forearm is taken to the barrier of the tight muscle group (wrist extensors or flexors, pronators or supinators). The patient pushes gently back, at about 10–20% effort, against resistance for 5–10 seconds, relaxes for 3–5 seconds, and the new barrier is taken up.

Cautions

Not used with an acute fracture, a joint infection or a bone malignancy; take care with severe osteoporosis or after surgery that limits muscle contraction. Use the least force needed: too much can tear a muscle or pull off a tendon, especially in older patients.

Evidence in TFCC Injury

Searched 26 Oct 2026: no trials of forearm muscle energy technique in TFCC injury.

Rehabilitation Exercises

Gentle Forearm Pronation/Supination Pendulums

Range of MotionBeginner

Flexor Carpi Ulnaris Stretch (Wrist Extension with Radial Deviation)

StretchingBeginner

Extensor Carpi Ulnaris Stretch (Wrist Flexion with Radial Deviation)

StretchingBeginner

Forearm Supination with Dumbbell (Thumbs-Up Position)

StrengtheningIntermediate

Forearm Pronation with Dumbbell (Thumbs-Down Position)

StrengtheningIntermediate

Grip Strengthening with Therapy Ball or Putty

StrengtheningIntermediate

Wrist Radial/Ulnar Deviation Resistance with Dumbbell

StrengtheningIntermediate

Single-Arm Stability Ball Weight Support (Modified)

BalanceIntermediate

Wrist Proprioception Exercises on Unstable Surface (Wobble Board with Hand Support)

ProprioceptiveIntermediate

Cervical Spine Postural Re-education and Scapular Stabilization

PosturalBeginner

Resisted Forearm Rotation with Resistance Band

StrengtheningAdvanced

Sport-Specific or Activity-Specific Wrist Stabilization Training (Racquet Swing Simulation, Gripping Patterns)

FunctionalAdvanced

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