Can you dislocate MCP joint?

The mechanism of injury of a metacarpophalangeal (MCP) joint dislocation is typically a hyperextension after a fall onto an outstretched hand. MCP joint dislocations can occur with the proximal phalanx dislocating dorsally or volarly, with the dorsal dislocation occurring significantly more often.

How do you fix a dislocated MCP joint?

Finger MCP joint hyperextension injuries may be treated by gently flexing the proximal phalanx and immobilizing the MCP joint in 30° of flexion for 2-3 weeks. A dorsal extension-block splint protects the healing volar plate while allowing active flexion of the finger.

How do you stop a thumb MCP dislocation?

Apply distal pressure either on the volar base of the distal phalanx (for IP dislocations) or on the proximal phalanx (for MCP dislocations). Achieve reduction by moving the dislocated joint into a position of relative extension without hyperextending the joint.

What is subluxation MCP joint?

If the collateral ligaments do not stabilize the MCP joint sufficiently, the proximal phalanx is drawn into the palm by the flexor structures. This results in volar subluxation of MCP joint in unstable volar thumb MCP dislocations. Unstable dislocation treatment, emergency open surgery and ligament reconstruction.

How do you relocate a thumb joint?

The bones may move back into place on their own or a doctor may gently put the joint back with a quick maneuver called a reduction. In some cases, surgery is needed to repair the joint. To keep the joint from dislocating again, a splint is put on the thumb (the splint might later be changed to a cast).

How do you treat metacarpophalangeal joints?

How is Metacarpophalangeal (MCP) Joint Arthritis Treated?

  1. Activity modification or hand therapy.
  2. Anti-inflammatory medications (oral or steroid injections)
  3. Cortisone injections (if medication fails)
  4. Simple splinting or flexible strapping.
  5. Topical skin creams.

What is the MP joint?

The large joints in the hand at the base of each finger are known as the metacarpophalangeal (MP, or MCP) joints. They act as complex hinge joints and are important for both power grip and pinch activities.

How long does it take a dislocated thumb to heal?

Most injuries like this heal without any problems in about six weeks. You should regain movement quickly with regular exercise (within four weeks). However, it may take several months for your symptoms to settle completely. These can include pain or discomfort, stiffness, decreased strength and swelling.

What is thumb subluxation?

Introduction. Dorsal subluxation is a typical finding of thumb carpometacarpal (CMC) osteoarthritis, which indicates ligament laxity and instability of the joint. 1 2. Ligament reconstruction, therefore, is one of the surgical treatments for painful thumb CMC joints.

What do doctors do for a dislocated thumb?

An X-ray is usually used to diagnose a dislocated thumb. The bones may move back into place on their own or a doctor may gently put the joint back with a quick maneuver called a reduction. In some cases, surgery is needed to repair the joint.