What is a TFCC tear?

The triangular fibrocartilage complex (TFCC) is a structure on the little-finger side of the wrist, sitting between the lower end of the ulna and the wrist. It acts as a cartilage cushion between the bones, and is reinforced by ligaments that stabilise the wrist as the forearm rotates. Think of it as a meniscus, similar to the one in the knee, with a central disc and supporting ligaments.

TFCC injuries are divided into two main groups. Traumatic tears (Palmer class 1) follow an injury such as a fall onto an outstretched hand with twisting, or a sudden forceful rotation of the wrist (using a power drill, for example). Degenerative tears (Palmer class 2) are part of normal age-related wear and are particularly common in patients with a slightly longer ulna than radius (ulnar-positive variance).

The location of a traumatic tear matters enormously for treatment. Tears in the central, avascular part of the disc cannot heal and are treated by debridement if symptoms persist. Tears at the peripheral attachment have a blood supply and can be repaired arthroscopically. An MRI arthrogram or wrist arthroscopy is often needed to make this distinction precisely.

Common causes

Fall onto an outstretched hand with the wrist twisted
Sudden forceful rotation of the wrist (power tools, sport)
Repetitive twisting and gripping (manual work, racket sports)
Distal radius fracture with associated TFCC injury
Age-related degenerative wear
Ulnar-positive variance (a slightly longer ulna than radius)

Who is at risk? Young adults with high-energy wrist injuries, manual workers, and athletes in racket sports are most at risk of traumatic tears. Older patients with ulnar-positive variance and previous distal radius fractures are at risk of degenerative tears.

Symptoms

Symptoms vary depending on the severity and duration of the condition. Common symptoms include:

Pain on the little-finger side of the wrist
Pain worse with twisting movements (opening jars, turning keys)
A clicking or clunking sensation with forearm rotation
Weakness of grip
Tenderness in the soft "snuffbox" between the ulnar styloid and the small wrist bones
Sometimes a sense of instability

When to seek help: See your GP or hand specialist if ulnar-sided wrist pain persists for more than 4-6 weeks, particularly if there is clicking or a sense of instability. Acute injuries with significant pain and inability to use the hand should be assessed urgently.

How is it diagnosed?

Your hand surgeon will take a detailed history and examine the hand and wrist. The following investigations may be arranged to confirm the diagnosis:

Clinical examination, tenderness at the "ulnar fovea", fovea sign
Ulnar grind test, axial loading and rotation reproduces pain
Plain X-rays, assess ulnar variance and look for other injuries
MRI arthrogram, gold standard for non-invasive imaging
Wrist arthroscopy, the definitive diagnostic test and often therapeutic at the same time

MRI is improving but still misses around 20-30% of TFCC tears. Wrist arthroscopy remains the most reliable way to diagnose and classify a TFCC tear, and offers the advantage of treating the tear at the same procedure.

Treatment pathway

Treatment is tailored to the severity of the condition, your age, activity level, and overall health. Most conditions are treated in a stepwise fashion, starting with the least invasive options.

First line

Splinting and activity modification

A wrist or wrist-and-forearm splint worn during aggravating activities offloads the TFCC and allows time for healing or symptom settlement. Avoidance of forceful twisting tasks is key. Anti-inflammatory medication can be used short-term.

Second line

Corticosteroid injection

An ultrasound-guided injection into the TFCC region or distal radioulnar joint can give significant relief, particularly in degenerative tears. Useful diagnostically as well as therapeutically.

Surgical option, peripheral tears

Arthroscopic TFCC repair

For traumatic peripheral tears (Palmer 1B, foveal detachment), arthroscopic repair reattaches the TFCC to the ulna. Patients are immobilised in a cast or splint for 6 weeks afterwards. Outcomes are good with around 80-85% returning to previous activity.

Surgical option, central tears

Arthroscopic debridement

For central tears (Palmer 1A) and degenerative tears (Palmer 2), the torn portion is trimmed arthroscopically. If there is associated ulnar abutment from ulnar-positive variance, an ulnar shortening osteotomy may be added.

Recovery

Recovery from arthroscopic repair is slow because the cartilage has a poor blood supply. A cast or splint for 6 weeks is followed by structured hand therapy. Return to manual work or racket sport typically takes 4-6 months. Debridement procedures have a faster recovery, with most patients back to normal activities by 6-8 weeks.

Splint and rest: 6 weeks
After arthroscopic repair, cast: 4-6 weeks
Hand therapy after surgery: 6-12 weeks
Return to sport or heavy work: 3-6 months

What results can I expect?

Good for peripheral repairable tears (around 80-85% good outcomes). Outcomes for degenerative tears are more variable and often depend on whether associated ulnar-positive variance is addressed. A small number of patients have persistent symptoms despite all treatments.

In numbers

Ulnar

sided wrist pain[1]

pain on the little-finger side of the wrist is the classic presentation

MRI

often used for diagnosis[1]

MRI arthrogram offers higher sensitivity for tears than standard MRI

Many

respond to conservative care[1]

splinting, activity change, and corticosteroid injection help many patients avoid surgery

Arthroscopy

when surgery needed[1]

wrist arthroscopy allows repair or debridement depending on tear pattern

What the evidence shows

The TFCC (triangular fibrocartilage complex) is a cartilage and ligament structure on the ulnar side of the wrist, it stabilises the distal radioulnar joint and cushions load[1]

Tears are classified as traumatic (typically peripheral, Palmer 1B, repairable) or degenerative (typically central, Palmer 2, treated by debridement)[1]

Distal radioulnar joint stability is a key clinical assessment, instability changes the surgical approach[1]

Ulnar variance (relative length of the ulna) affects load on the TFCC, ulnar shortening osteotomy may be considered when positive variance contributes to symptoms[1]

When can I…?

Typical activity timelines for this condition. These are approximate and vary considerably between patients. Always follow the specific guidance given by your surgeon and hand therapist.

Activity	Typical timeline	Notes
Drive	When splint allows	Many patients drive in a removable splint when grip is comfortable.[2]
Desk work	Days	Light hand and wrist use with a splint is usually fine. Avoid prolonged or forceful gripping.
Manual work	After settled / 6-12 weeks post-op	Avoid forceful gripping, twisting, and ulnar deviation until the wrist has settled or, after surgery, healing is established.[1]
Sport	3-6 months after surgery	Racquet and impact sports return gradually after surgery, guided by symptoms.
Twist with force	Avoid early on	Door handles, jar lids, screwdrivers, and similar movements typically aggravate symptoms early in recovery.[1]
Splint use	Varies	A removable wrist splint during aggravating activities helps. Full-time splinting may be advised for 4-6 weeks after some surgical repairs.[3]

Is this normal?

Common concerns from patients with this condition or recovering from treatment, and whether they are expected or worth mentioning to your team.

A mild click in the wrist with certain movements is common, both with and without a TFCC tear. If clicking is painful, getting worse, or associated with a clunk or feeling of instability, it is worth assessment.[1]

Yes, this is a classic feature. Pronation/supination loaded against resistance (turning keys, opening jars, doorknobs) typically aggravates TFCC pain. Avoiding these movements while symptoms settle helps.[1]

A feeling of clunking or shifting at the distal radioulnar joint (the small joint at the ulnar side of the wrist) may indicate joint instability. This is worth assessing, as it can change the treatment needed.[1]

It is worth assessing. TFCC tears can settle with conservative care but persistent pain at 3 months or beyond merits review, including imaging if not yet done.[1]

References & further reading

References are to UK clinical guidance and patient information from recognised organisations. This page is for general information and does not replace personalised advice from your own clinical team.

TFCC tear