The Hand and Upper Extremity is where Dr. Lee made his name: and where he helped design the hardware.

Thumb CMC reconstruction with an internal brace system Dr. Lee helped design.

A bent finger from disruption of the central slip of the extensor tendon, after injury or in rheumatoid arthritis. Recognized early, it is often treated with splinting and therapy; chronic deformities may need reconstruction.

Including endoscopic release, a minimally invasive approach with faster recovery than traditional open surgery.

Exercise-induced forearm pain, tightness, and swelling that builds with activity and eases with rest, from elevated pressure in the forearm muscle compartments. Seen in climbers and grip-intensive athletes, with fasciotomy an option for those who must keep competing.

Thumb-side wrist pain from irritation of the first dorsal compartment tendons. Most cases improve with splinting and a corticosteroid injection; persistent cases are treated with a short release.

The most common fracture orthopedic surgeons treat. Dr. Lee uses fixed-angle volar plating in displaced or intra-articular cases.

Progressive thickening of the palm's fascia that can curl a finger over time. Treated based on function, with in-office needle and enzyme options as well as surgery.

When the extensor tendon slips off the knuckle, often after a punch or in inflammatory arthritis. Treated with splinting acutely, or surgical realignment when chronic.

Sideways injuries to the small ligaments that stabilize finger joints. Most heal without surgery; the unstable ones benefit from internal brace repair Dr. Lee helped design.

Rupture of the small bands that hold the flexor tendons against the finger bones, classically from a crimp-grip fall in rock climbing. Most isolated injuries heal with taping and protected motion; multiple-pulley ruptures may need surgical reconstruction.

The most common lump in the hand, a benign fluid-filled cyst. Many need no treatment; symptomatic cysts are treated with aspiration or excision of the cyst and its stalk.

Ulnar nerve compression at the wrist, in Guyon's canal, causing numbness and tingling in the ring and small fingers and sometimes grip weakness. Treated by relieving the source of pressure, with decompression reserved for persistent or weakening cases.

Fracture fixation using hand and elbow plating systems Dr. Lee helped design.

Osteoarthritis of the finger joints and hand, with pain, stiffness, and bony nodes. Conservative care comes first, with splints, therapy, and injections; surgery is reserved for joints that stay painful.

An overuse tendinopathy where two forearm tendon groups cross a few centimeters above the wrist, causing pain, swelling, and sometimes a squeak. Common in rowers and weightlifters, and it usually settles with rest, splinting, and activity changes.

Loss of blood supply to the lunate, a carpal bone of the wrist, causing pain, stiffness, and reduced grip. Treatment is staged by imaging, from immobilization early to joint-leveling or salvage procedures in advanced collapse.

A drooping fingertip from disruption of the terminal extensor tendon, often from a ball striking the finger. Most are treated with continuous splinting; surgery is reserved for large bony fragments or open injuries.

A small cyst over the last joint of the finger, almost always associated with arthritis in that joint. Surgical removal must include the underlying bone spur to prevent recurrence; aspiration alone is best avoided because of infection risk.

A cut nerve in the hand, wrist, or forearm, often from glass or a knife, causing numbness or weakness in that nerve's distribution. Treatment is early microsurgical repair, with grafts or conduits to bridge gaps and hand therapy to support recovery.

Systemic inflammatory arthritis affecting the joints and tendons of the hand and wrist. Medical management with a rheumatologist is the foundation; the hand surgeon addresses tendon ruptures, nerve compression, and painful deformities.

The most commonly fractured carpal bone, with a fragile blood supply that makes early treatment important. Treated with casting or a headless compression screw depending on the fracture.

Internal brace reconstruction using anchors Dr. Lee helped design.

End-stage wrist arthritis after an old scapholunate tear or scaphoid non-union. Salvage procedures relieve pain and preserve a functional wrist.

A finger deformity with the middle joint hyperextended and the fingertip flexed, from an imbalance of the finger's tendons and ligaments. Early flexible deformities respond to therapy and small splints; fixed or disabling ones are treated surgically.

A cut flexor or extensor tendon, usually from a sharp injury, causing loss of finger bending or straightening. Treated with precise specialist repair and a structured hand-therapy motion program to prevent stiffness and rupture.

Tear of the triangular fibrocartilage complex, the cartilage-and-ligament structure on the pinky side of the wrist. Treated with splinting, PRP, or arthroscopic debridement or repair, depending on the tear pattern.

Ligament tear at the base of the thumb, often from a fall or ski-pole injury. Internal brace repair Dr. Lee helped design supports earlier return to pinching and sport.

Catching, clicking, or locking of a finger from a thickened tendon nodule at the A1 pulley. Most cases resolve with a single in-office injection; a short A1 pulley release handles the rest.

Pinky-side wrist pain from an ulna that sits too long relative to the radius. Treated with splinting, injections, PRP, or arthroscopic ulnar shortening (wafer procedure).

Compression of the superficial radial nerve, often by a tight watch band, causing burning and tingling on the back of the hand. Most cases resolve when the source of pressure is identified and removed.

Two 4 mm portals, a small camera, and direct visualization of every ligament and cartilage surface in the wrist. The diagnostic and treatment workhorse for TFCC tears, ligament injuries, and persistent wrist pain.