Suspensionplasty is a way of changing the pull of the abductor pollicis longus tendon (APL). The APL attaches at the base of the thumb where arthritic changes in the bone start to cause pain and weakness. By removing the bone and redirecting the tendon, pain is relieved without losing function.
The operation is easier to perform with equally good results. The other tendons of the wrist and thumb are undisturbed. Wrist stability is preserved. After surgery, rehab, and recovery you should be able to open jars, turn keys in doors, pinch, and grip without pain.