Maïa™
Setting the standard in CMC arthroplasty
The Maïa™ prosthesis is an innovative solution specifically designed for thumb carpometacarpal (CMC) arthritis. With its dual mobility system, it delivers unparalleled stability, durability, and natural biomechanics.
Engineered for Precision
Designed for Longevity
For the past 14 years, Sovereign Medical Group has proudly served as the UK distributor for the Maïa™ CMC Joint Prosthesis, bringing advanced arthroplasty solutions to thumb base arthritis patients.
As the trusted partner of Lépine, we’ve seen firsthand the transformational impact this innovative implant has had on patients and hospitals alike. Sovereign Medical’s longstanding relationship with the Maïa™ allows us to offer unmatched expertise, insight, and support, making us the premier partner for your thumb arthroplasty needs.
Patient advantages of Rejoint
Use this space to promote the business, its products or its services. Help people become familiar with the business and its offerings, creating a sense of connection and trust. Focus on what makes the business unique and how users can benefit from choosing it.
Improved functionality
Significantly enhances limb function by restoring joint mobility.
Item Title
Decreases pain during movement, improving quality of life.
Item Title
As a bioabsorbable implant, RegJoint™ eliminates the need for removal surgeries.
Item Title
Describe the item here. Include important features, pricing and other relevant info.
Enhanced Stability
Dual mobility provides superior resistance to dislocation, even in high-demand patients.
Optimised Biomechanics
Designed to replicate natural thumb motion, ensuring improved grip strength and dexterity.
Durable Cementless Fixation
Porous titanium and hydroxyapatite coatings promote strong bone integration, reducing revision risks.
Minimal Bone Resection
Preserves natural anatomy, making future interventions easier if needed.
Proven Clinical Outcomes
Long-term data demonstrates pain relief, enhanced function, and high implant survival rates.
Applications of Maia™
The MAÏA™ prosthesis is primarily used to treat advanced thumb osteoarthritis, particularly in patients who have not responded to conservative treatments such as splinting, corticosteroid injections, or physical therapy. By replacing the damaged carpometacarpal joint, the implant alleviates pain and restores function.
Traditional treatment for severe thumb arthritis often involves trapeziectomy, the surgical removal of the trapezium bone. While effective, this procedure can lead to joint instability and reduced grip strength. The MAÏA™ prosthesis provides a more stable and functional alternative, maintaining joint integrity and enhancing thumb mobility.
Patients who have experienced previous injuries to the CMC joint, such as fractures or ligament damage, may develop post-traumatic arthritis. The MAÏA™ prosthesis helps restore joint stability and function in these cases, preventing further degeneration.
In addition to osteoarthritis, MAÏA™ can be used for patients suffering from rheumatoid arthritis affecting the CMC joint, as well as congenital or degenerative joint disorders that impair thumb movement and cause chronic pain.
Technical Specifications
The MAÏA™ Carpometacarpal Joint (CMCJ) replacement prosthesis features a dual-mobility design that enhances stability and minimizes the risk of dislocation. Its hemispherical trapezium cup comes in three sizes—8mm, 9mm, and 10mm—each equipped with four anti-rotation spikes to ensure strong primary stability. The implant utilizes polyethylene inserts that provide a smooth articulation while maintaining a full range of motion without compromising joint integrity.
To accommodate different anatomical variations, the prosthesis includes modular necks in three offset sizes, allowing surgeons to fine-tune thumb length and soft tissue tension. Additionally, the prosthesis offers seven anatomical stem sizes designed for cementless fixation, promoting optimal bone ingrowth and long-term secondary stability. These combined features make MAÏA™ an advanced solution for patients requiring thumb joint replacement due to osteoarthritis or other degenerative conditions.
Clinical Evidence
Backed by clinical research, Maia is setting a new standard in hand surgery. Explore the medical evidence below to learn more.