Tissium Nerve Repair: The Future of Sutureless Nerve Surgery

A Paradigm Shift in Nerve Repair

For decades, microsurgical nerve repair has relied on fine sutures to reconnect severed nerve endings — a technically demanding process where even slight misalignment or tension can compromise axonal regeneration and functional recovery. The FDA clearance of TISSIUM's COAPTIUM® CONNECT system marks a watershed moment: the first light-activated biopolymer platform designed specifically for sutureless peripheral nerve coaptation.

How COAPTIUM® CONNECT Works

The system uses a proprietary bioresorbable polymer that is applied around aligned nerve endings and then activated by a specific wavelength of visible light. Within seconds, the polymer cures into a strong yet flexible sleeve that:

• Eliminates suture-related stress at the coaptation site, creating a truly tensionless repair
• Aligns fascicles consistently via a coaptation chamber that holds nerve ends in anatomical position
• Biodegrades naturally as the nerve heals, leaving no permanent foreign material behind
• Simplifies the surgical workflow, reducing operative time and variability between surgeons

Clinical Advantages Over Traditional Neurorrhaphy

Conventional epineurial suturing, even under high-power magnification, introduces needle trauma to the nerve stump and can create tension that impedes regeneration. Biomechanical studies published in peer-reviewed journals have demonstrated that polymer-assisted repair achieves comparable or superior tensile strength without the focal stress points inherent to suture placement.

Key benefits observed in clinical and pre-clinical data include:

• Reduced risk of neuroma formation at the repair site
• More uniform fascicular alignment
• Shorter operative times for nerve coaptation
• Potential for improved sensory and motor recovery outcomes

Applications in Plastic and Reconstructive Surgery

Peripheral nerve injuries are encountered across multiple domains of plastic surgery — from digital nerve lacerations in hand trauma to sensory nerve preservation during breast reconstruction and facial reanimation procedures. The COAPTIUM® system is particularly promising for:

• Hand and upper extremity nerve repair
• Brachial plexus reconstruction — where precise coaptation is critical
• Free flap procedures requiring sensory nerve restoration
• Facial nerve repair after tumour excision or trauma

Prof. Dr. Karaaltin's Perspective

As a triple board-certified plastic surgeon with extensive microsurgical experience, Prof. Dr. Mehmet Veli Karaaltin recognises the transformative potential of atraumatic nerve repair technologies. "Any advancement that reduces surgical trauma to the nerve itself while improving the consistency of coaptation represents a meaningful step forward for patient outcomes," he notes. "The elimination of suture-related tension is especially relevant in complex reconstructive cases where we are already working at the limits of nerve length and excursion."

The Road Ahead

With FDA clearance now secured, TISSIUM's platform opens the door to broader adoption in specialised microsurgery centres worldwide. Ongoing studies continue to evaluate long-term functional recovery, and the technology may eventually extend to central nervous system applications. For patients facing peripheral nerve injuries, this innovation offers renewed hope for faster, more complete recovery.