4.0mm Cannulated Headless Screw | Biolink Medical Technology

4.0mm Cannulated Headless Screw

ISO 13485-certified 4.0mm cannulated headless compression screws in Ti-6Al-4V & 316L.

4.0mm Cannulated Headless Screw

4.0mm Cannulated Headless Screw | Orthopedic Trauma Implants

Clinical Indications in Orthopedic Trauma The 4.0mm cannulated headless screw is indicated for trauma reconstruction, osteotomies, non-union stabilization, and joint arthrodesis across medium and small bones:

  • Radial Head & Neck Fractures: Complex Mason Type II and Type III fractures, including coronal shear fractures and split articular fragments where conventional screw heads would cause radiocapitellar or proximal radioulnar joint (PRUJ) impingement.

  • Distal Humerus Articular Trauma: Coronal shear fractures of the capitellum and trochlea (Bryan-Morrey fractures) managed via anterior-to-posterior or posterior-to-anterior headless screw placement.

  • Complex Carpal Trauma & Scaphoid Non-Unions: Large scaphoid non-unions, intercarpal arthrodesis, and trans-scaphoid perilunate fracture-dislocations requiring higher compression loads than smaller-diameter screws provide.

  • Foot & Ankle Trauma: Fractures of the talus (neck and body), calcaneus anterior process, navicular, and cuboid; Akin and scarf corrective osteotomies; and subtalar/talonavicular small-joint fusions.

  • Malleolar & Intra-Articular Avulsions: Tillaux, Wagstaffe, or Volkmann’s (posterior malleolus) articular fragments requiring rigid lag compression without prominent hardware under thin soft tissues.

  • Patellar & Knee Osteochondral Trauma: Fixation of osteochondral fractures of the patella and femoral condyles beneath the articular surface.

Product No. & Sizes

SizesReference Number 
 TitaniumSS316L 
10mm to 30mmBMTT1006.10 to 40BMTS1006.10 to 40 

Product Featured

Differential Thread Pitch Compression

Designed with a wider, coarser thread pitch at the leading distal tip and a finer, tighter pitch at the trailing proximal end. Each revolution advances the distal threads faster than the trailing threads, producing uniform, high-yield axial compression across the fracture plane without relying on an external screw head.

True Headless Subchondral Profile

Countersinks flush or entirely beneath the articular cartilage surface, ensuring smooth joint gliding mechanics, maintaining uninterrupted synovial contact, and preventing soft-tissue and extensor/flexor tendon irritation.

Percutaneous Cannulated Precision

A calibrated central longitudinal cannula permits guided delivery over a 1.25 mm – 1.35 mm guide wire under intraoperative C-arm fluoroscopic control, supporting minimally invasive surgery (MIS), reducing blood loss, and preserving critical periosteal blood supply.

Dual Self-Drilling & Self-Tapping Flutes

Precision reverse-cutting flutes on both the leading and trailing threads clear bone debris, lower peak cutting resistance, minimize micro-fracture risks, and eliminate the need for tapping in dense subchondral bone.

Anti-Cam-Out High-Torque Recess

Broached with a precision StarDrive (T15) or 2.5 mm cannulated hexagonal recess that ensures deep driver engagement, maximizing torque transmission and preventing drive slippage or head deformation during deep countersinking.

Traceability

High-precision permanent laser markings on the unthreaded central shank display diameter, length, and batch lot numbers for 100% OR tracking and regulatory compliance.

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What Our Partners Say

I’ve used BioLink spine systems in multiple complex procedures. The implants provide excellent stability and patient outcomes. Their product support and innovation are unmatched.
Charles ByrdFounder
Charles Byrd
I’ve used BioLink spine systems in multiple complex procedures. The implants provide excellent stability and patient outcomes. Their product support and innovation are unmatched.
Charles ByrdFounder
Charles Byrd
I’ve used BioLink spine systems in multiple complex procedures. The implants provide excellent stability and patient outcomes. Their product support and innovation are unmatched.
Charles ByrdFounder
Charles Byrd
I’ve used BioLink spine systems in multiple complex procedures. The implants provide excellent stability and patient outcomes. Their product support and innovation are unmatched.
Charles ByrdFounder
Charles Byrd

Frequently Asked Questions

BioLink specializes in the design, manufacturing, and global distribution of high-quality orthopedic and surgical implants. Our product range includes solutions for spine, trauma, arthroscopy, joint reconstruction, and surgical instruments.

BioLink specializes in the design, manufacturing, and global distribution of high-quality orthopedic and surgical implants. Our product range includes solutions for spine, trauma, arthroscopy, joint reconstruction, and surgical instruments.

BioLink specializes in the design, manufacturing, and global distribution of high-quality orthopedic and surgical implants. Our product range includes solutions for spine, trauma, arthroscopy, joint reconstruction, and surgical instruments.

BioLink specializes in the design, manufacturing, and global distribution of high-quality orthopedic and surgical implants. Our product range includes solutions for spine, trauma, arthroscopy, joint reconstruction, and surgical instruments.

BioLink specializes in the design, manufacturing, and global distribution of high-quality orthopedic and surgical implants. Our product range includes solutions for spine, trauma, arthroscopy, joint reconstruction, and surgical instruments.

BioLink specializes in the design, manufacturing, and global distribution of high-quality orthopedic and surgical implants. Our product range includes solutions for spine, trauma, arthroscopy, joint reconstruction, and surgical instruments.