Wrist arthroscopy is a minimally invasive operation that allows a surgeon to see and treat the inside of the wrist joint through small 4 mm portals, one for a thin camera and one for instruments. The same technique that has been standard in the knee and shoulder for decades is now well established in the wrist, where the joint is smaller and the structures more delicate.
Dr. Lee uses wrist arthroscopy for two related purposes. The first is diagnostic: when a careful exam and high-quality imaging cannot fully explain a patient's wrist pain, arthroscopy provides a direct view of every ligament and cartilage surface in the joint. The second is therapeutic: many of the problems that arthroscopy reveals (TFCC tears, scapholunate or lunotriquetral ligament tears, loose bodies, synovitis, and selected cartilage lesions) can be treated in the same setting through the same small incisions.
What wrist arthroscopy can evaluate and treat
Wrist arthroscopy is used in a defined set of clinical situations:
- TFCC tears, the most common indication, with debridement of central tears and arthroscopic repair of peripheral tears
- Scapholunate and lunotriquetral ligament tears, graded under direct vision and treated by debridement, capsulodesis, or repair depending on severity
- Ulnar impaction syndrome, often combined with an arthroscopic wafer procedure to shorten a long ulna
- Synovitis and inflammatory wrist conditions when biopsy or debulking is needed
- Dorsal wrist ganglion cysts, which can be excised arthroscopically from inside the joint
- Loose bodies and cartilage flaps that catch and lock the joint
- Distal radius fracture assessment, to check the joint surface and screen for ligament tears at the time of fixation
- Persistent wrist pain after a fall or twist when imaging is normal but symptoms continue
How the procedure works
Wrist arthroscopy is an outpatient operation performed under regional or light general anesthesia. The hand is suspended in a small traction tower that opens the joint just enough to introduce instruments safely. Tiny 4 mm incisions are made on the back of the wrist, the camera is introduced through one and instruments through the other.
Through the camera, every ligament, the TFCC, both rows of carpal bones, and the cartilage surfaces are inspected in sequence. Findings are graded with the Geissler classification for ligaments and the Palmer classification for TFCC tears, then treated immediately if a procedure is appropriate. The whole operation typically takes thirty minutes depending on what is found.
Why arthroscopy over open surgery
Arthroscopy reaches the same internal structures that an open operation does, but through 4 mm incisions instead of a much larger exposure. The benefits patients notice are practical: less scar tenderness, less stiffness afterward, faster return to motion, and a smaller visible scar.
The benefit the surgeon notices is information. The camera magnifies the joint several times over and shows the cartilage surfaces, the underside of the TFCC, and the membranous portions of the interosseous ligaments in a way that no open exposure or MRI can match. For ulnar-sided wrist pain, that view often resolves a diagnosis that imaging alone could not.
When wrist arthroscopy is not the right answer
Arthroscopy is not a treatment for advanced arthritis of the wrist (SLAC or SNAC wrist), for which salvage procedures like proximal row carpectomy or four-corner fusion are appropriate. It is also not a first step in problems that respond well to non-surgical care: most TFCC tears, most ganglion cysts, most cases of ulnar impaction syndrome, and most early ligament sprains improve with splinting, activity modification, and corticosteroid or PRP injection. Surgery, including arthroscopy, is reserved for cases that fail a real trial of conservative treatment or whose pattern is clearly surgical from the start.
Dr. Lee has performed wrist arthroscopy for more than twenty years and regularly teaches the technique to other surgeons in cadaver labs. The approach he favors is to use arthroscopy decisively: when a real trial of non-surgical care has failed, or when imaging shows a clearly surgical pattern, a single arthroscopic operation can both confirm the diagnosis and complete the treatment. That avoids the alternative of staged operations or repeated invasive imaging.
When ulnar impaction is contributing to ulnar-sided wrist pain, the TFCC repair or debridement is often combined with an arthroscopic wafer procedure (a small shortening of the ulna) at the same setting. When a scapholunate ligament tear is found, the severity is graded under direct vision and treatment is matched to the grade rather than to MRI alone. The point of the operation is to leave the wrist with a problem solved, not just inspected.
Recovery timeline
Recovery depends on what was treated. The two ends of the spectrum are straightforward debridement (fastest) and a formal arthroscopic repair (slowest).
- Day 0 to 7Soft dressing or short non-removable splint. Move the fingers and elbow from the start. Keep the wound dry until the first visit.
- Debridement, weeks 1 to 2Sutures out. Removable wrist brace. Begin gentle wrist motion depending on the diagnosis.
- Debridement, weeks 2 to 6Hand therapy for motion and gradual strengthening. Return to most daily activities and desk work.
- Debridement, weeks 6 to 12Return to gripping-heavy work and non-contact sport. Most final outcomes are reached by three months.
- Repair, weeks 1 to 4Longer immobilization in a splint or cast (the exact length depends on the tear pattern and the structures repaired).
- Repair, weeks 4 to 8Removable splint and hand therapy. Gentle progressive loading.
- Repair, 3 to 6 monthsReturn to full strength, gripping-heavy work, and contact sport. Some residual stiffness can persist longer in selected cases.
What patients commonly misunderstand
Two persistent misconceptions are worth addressing:
- 'Arthroscopy is a small procedure, so the recovery is nothing.' The incisions are small, but the recovery is dictated by what was treated, not by the size of the skin opening. A debridement recovers fast; a formal ligament or TFCC repair recovers like the open version of the same operation. Patients are best served by an honest preview of which they are signing up for.
- 'A normal MRI means the wrist is fine.' MRI is excellent for most wrist problems but misses some real tears, especially partial scapholunate and lunotriquetral ligament tears and small TFCC perforations. When a careful exam strongly suggests a problem the imaging does not confirm, diagnostic arthroscopy is sometimes the right next step.
This page is general educational content authored by Dr. Lee. It is not a substitute for individual medical advice. Every patient's case is different, book a consultation to discuss yours.