Thumb carpometacarpal joint (CMCJ) osteoarthritis is a prevalent condition, particularly among individuals in their 50s and 60s, leading to significant pain, laxity, and weakness of the CMC joint. Treatment options vary based on the severity of the disease, ranging from conservative measures to surgical interventions. In this presentation, we will introduce two of the most commonly employed surgical techniques in our practice for addressing CMCJ osteoarthritis: arthroscopic hemi-TightRope Suspension and CMCJ arthrodesis. We will detail the surgical techniques and approaches used in these procedures, followed by a review of the clinical outcomes, including improvements in hand function, patient satisfaction, and postoperative recovery times. The former technique aims to preserve joint motion while alleviating pain, whereas the latter provides robust stability but sacrifices joint mobility. By comparing these methods, we will offer insights into their respective advantages and limitations, highlighting the importance of individualized treatment strategies in optimizing surgical outcomes for patients with CMCJ osteoarthritis.