Thumb MCP Splint with PVX
![SilverRing™ Thumb MCP Splint with bracelet](https://www.silverringsplint.com/wp-content/uploads/2016/11/silverring_0019_MCP-200x135.jpg)
A proximal volar extension is frequently added to fit under the head of the metacarpal joint for additional stability. This is good if the MCP hyperextends more than 20 degrees.
![PVX](https://www.silverringsplint.com/wp-content/uploads/2019/12/PVX-U-BW.png)
![Spoon PVX](https://www.silverringsplint.com/wp-content/uploads/2019/12/Spoon-PVX-BW.png)
A proximal volar extension is frequently added to fit under the head of the metacarpal joint for additional stability. This is good if the MCP hyperextends more than 20 degrees.