Could a Rare Finger Condition Teach Us More About How Hands Are Formed?
The short answer: Three mutations in the BHLHA9 gene can change how fingers form, helping scientists understand normal hand development. If you…
Anatomy & Biomechanics · June 20, 2026Can Your Thumb Cartilage Heal Itself? What New Research Shows
The short answer: Thumb cartilage does not heal as well as hip cartilage, which may limit cell therapy for the thumb. If…
Anatomy & Biomechanics · March 26, 2026Could a Hidden Muscle in Your Forearm Be Causing Your Thumb Pain?
The short answer: The extra muscle is found in about 50% of forearms. The distal tendon is about 3.91 cm long and…
Anatomy & Biomechanics · February 20, 2026CMC Joint Arthritis: Stages, Symptoms, and Treatment by Stage
The short answer: CMC arthritis has 4 Eaton stages, from I to IV, and treatment changes by stage. What should I know…
Anatomy & Biomechanics · January 29, 2026Does Your Thumb Muscle Connect to Arthritis Pain?
If you have thumb pain or arthritis at the base of your thumb, you may wonder if something in your body is…
Anatomy & Biomechanics · November 2, 2025Is Your Thumb Pain Linked to How a Muscle Attaches?
The short answer: Thumb arthritis is very common, but this study found it does not seem to be caused by how the…
Anatomy & Biomechanics · November 2, 2025Why does thumb arthritis cause pain & deformity?
The short answer: Thumb arthritis hurts and can cause the thumb to bend in odd ways. The flexor pollicis brevis muscle becomes…