- Early stage arthritis of the CMC (base of thumb) joint with instability and joint subluxation.
- Aim is to redirect the bone and change where the joint surface rubs together to more normal areas of cartilage.
- Does not cure arthritis.
- Day or overnight procedure, most commonly under general anaesthetic.
- An arthroscopy may be performed to evaluate the articular (cartilage) surface prior to reconstruction.
- Via curved incision at the base of the thumb with a second incision in the mid forearm.
- A length of tendon is harvested (FCR) and woven through the base of the metacarpal and trapezium (bones on either side of the joint).
- Usually takes approximately 60 minutes.
- Immediately post operatively the hand is usually quite numb due to local anaesthetic used for the surgery.
- The hand and wrist will be in a plaster backslab and the fingers will be free.
- It is important to keep the hand elevated after surgery especially in the first 72 hours post op to reduce/limit swelling.
- Keep the fingers moving, all the way straight and bent into a fist to limit stiffness and help reduce swelling.
- May use the hand for light activities as comfortable but avoid heavy activities.
- Keep the dressing clean and dry.
- Review at 2 weeks for wound check and to change to removable plastic splint.
- Begin Scar massage to soften wounds and desensitise scars.
- Takes 3-4 months to fully recover.
(Joint Surface with adequate cartilage – cartilage is marked)
(Joint Surface Loss of cartilage, bone only - remaining cartilage is marked)
These notes have been prepared by orthopaedic surgeons at OrthoSport Victoria. They are general overviews and information aimed for use by their specific patients and reflects their views, opinions and recommendations. This does not constitute medical advice. The contents are provided for information and education purposes only and not for the purpose of rendering medical advice. Please seek the advice of your specific surgeon or other health care provider with any questions regarding medical conditions and treatment.