Arm, shoulder and hand injuries

Wrist Instability

What is wrist instability?

Wrist instability occurs when one or more of the wrist ligaments have lost integrity, are lax, or damaged. The most commonly known ligaments are the scaphoid-lunate ligament and the luno-triquital ligament. The loss if ligament integrity alters the normal wrist mechanics of the carpal bones and hence affects your hand function. Injury occurs with a strong force (hyperextension or twisting), chronic loading of ligament, or repetitive forceful gripping.

In general, a complete rupture of the ligament could result in wrist arthritis if not treated properly. The ligaments are rich innervated with neural receptors, and hence affects your ability to know where your hand is in space-proprioception, as well as neuromuscular transmitters - telling your muscles when to move and how strongly or move.

What may I experience?

  • Clunking /clicking of wrist, or wrist feels like it’s ‘giving way’
  • Pain with palpation over dorsum of wrist
  • Pain with end range or rotation
  • Pain with weightbearing, unable to push down through wrist to stand up

What should I do?

Wrist Instabilities are complex in nature and rehabilitation. Initially, your therapist will splint/or tape your wrist. Added to your therapy program are measure to address pain, swelling, stability, strengthening and proprioception. You will need to be diligent with a home program of exercises to achieve the best result.

Infographic of scapho-lunate ligament and lunate-triquetral ligament

What can I expect?

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Wrist Instability

Wrist instability occurs when one or more of the wrist ligaments have lost integrity, are lax, or damaged. This alters the normal wrist mechanics of the carpal bones and hence affects your hand function.

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Triangulo-fibro Cartilage Complex

Your triangulo-fibro cartilage complex (TFCC) is a structure that sits as a sling to hold the outside of your wrist together.

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