With an aging population, the incidence of symptomatic thumb carpometacarpal joint arthritis (CMC) is on the rise. The incidence is higher in women overall, with 25% of post-menopausal women and over 40% of women aged greater than 70 years presenting with symptomatic carpometacarpal joint arthritis. The thumb CMC joint is second only to the distal interphalangeal joint as the most common arthritic joint in the hand. Indications for Use: Acu-Sinch Knotless Mini System, when used for fixation of bone to bone or soft tissue to bone, is intended as a fixation post, a distribution bridge, or for distributing suture tension over areas of ligament or tendon repair. Specifically, the Acu-Sinch Knotless Mini System is indicated for Carpometacarpal (CMC) joint arthroplasty as an adjunct in the healing process of hematoma distraction arthroplasty by providing stabilization at the base of the first and second metacarpal when the trapezium has been excised due to osteoarthritis.