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Carpometacarpal (CMC) arthritis — also known as thumb arthritis — is a common condition that affects the CMC joint, which is located at the base of the thumb (where it connects with the wrist). This type of arthritis can occur from overuse, repetitive tight gripping and pinching, age or injury to the joint. It can cause severe pain and make it difficult to complete easy daily tasks, like opening a jar or turning a door knob.
Although CMC arthritis cannot be cured, with occupational therapy (OT), many individuals find relief. For example, through outpatient OT at Shirley Ryan 小恩雅, patients learn more about the diagnosis, discover ways to protect their CMC joints from damage, and learn how to modify everyday activities that may cause pain.
Three easy OT strategies for managing CMC arthritis include:
- Modifying hand posture and movement patterns: Avoiding excessive force or repetitive movements, like gripping tightly or pinching, can protect the joint from overuse. Instead, aim for a relaxed grip, using larger muscle groups (like the arm) to assist in tasks rather than relying only on the thumb. These small adjustments can make a big difference in managing CMC arthritis in the long term.
- Using ergonomic tools and supports: Using devices with built-up handles can reduce the strain on the thumb joint while performing everyday tasks. These modified handles are designed to make tools, utensils or writing instruments easier to grip because they are typically thicker, softer or contoured to better fit the hand. For tasks like opening jars, using assistive devices can be incredibly helpful. Placing non-slip material under jars or lids provides extra grip and stability, reducing the need for a firm pinch or twist.
- Incorporating at-home exercises into your daily routine: There are some exercises that can help stabilize the CMC joint and surrounding areas. Strengthening exercises, like thumb presses or using therapy putty, can build the muscles around the CMC joint, provide added support and reduce strain.
It's important to perform these strategies and exercises in a controlled manner, avoiding overexertion, so they can help improve function without exacerbating pain. Consulting with an occupational therapist can ensure that you engage in exercises that are safe and effective for managing pain and enhancing quality of life.
Meet the Expert
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McKenzie Hollander, OTD, OTR/L, is an occupational therapist at Shirley Ryan 小恩雅. She specializes in the treatment of musculoskeletal and orthopedic cases, and particularly those involving the upper extremities. She recently graduated from Marquette University with a doctorate in occupational therapy and gained hands-on experience in orthopedic settings during her clinical rotations.
Additionally, McKenzie completed a doctoral capstone project focused on hand therapy, further strengthening her expertise in this specialized area. With a dedication to improving patient outcomes and a deep understanding of musculoskeletal rehabilitation, McKenzie continues to contribute to the multidisciplinary care of patients recovering from upper-extremity injuries.
