Thenax Opponent CMC Thumb Support
The Thenax Opponent CMC Thumb Support combines an elastic brace and a thermoplastic orthosis to provide support to the thumb. It can be shaped for a more custom support, and is suitable for a range of conditions and injuries.
Indications of the CMC Thumb Support
The CMC Thumb Support is ideal for providing respite from pain caused by carpometacarpal (CMC) arthritis, which can occur when the flexible tissue known as the cartilage wears away and is thus no longer able to protect the joint. This can be very painful, and the CMC Thumb Support can ease this discomfort. Additionally, the thumb support is suitable for ligament injuries and general instabilities of the thumb, offering a versatile support for thumb pain of varying degrees.
Shaping the CMC Thumb Support
The thermoplastic piece that is housed inside the palmar pocket can be moulded for a custom support. This is done by inserting the piece into the pocket and then adding hot water of around 75-80 degrees Celcius. After around a minute, the water can be poured out, and the brace can then be placed flat on a towel to absorb the moisture.
Once this is then applied to the patient, which can be done within around three to four minutes before it sets, it can take the required shape to best suit the their needs.
Additional Benefits of the CMC Thumb Support
The NeoTex brace of the Thenax Opponent provides support to the thenar eminence and the CMC joint. It also includes an elastic hook strap on the extensions of the thumb grip, which further assists with the abduction of the thumb. If the hook is not required, it can be cut away from the brace for improved convenience to the wearer.
Sizing of the CMC Thumb Support
The Thenax Opponent CMC Thumb Support is available for both the right and the left thumb, and comes in a choice of five sizes to ensure a more supportive fit. To determine the size required, measure the circumference around the wrist. Your desired option can then be selected from the drop-down menu at the top of the page.
| Size | Measurements (cm) |
| Extra Small | 13 – 14cm |
| Small | 14 – 16cm |
| Medium | 16 – 18cm |
| Large | 18 – 20cm |
| Extra Large | 20 – 22cm |




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