Cortex Bone Screw 3.5mm

Cortex Bone Screw 3.5mm is a stainless steel veterinary orthopedic screw designed for cortical bone purchase, TPLO plate fixation, fracture stabilization, and plate-screw fixation in veterinary orthopedic surgery. The available variants are Cortex Bone Screw 3.5mm Length 10mm Hex Head, 12mm Hex Head, 14mm Hex Head, 16mm Hex Head, 18mm Hex Head, 20mm Hex Head, 22mm Hex Head, 24mm Hex Head, 26mm Hex Head, and 30mm to 50mm Hex Head. The screw has a 3.5mm diameter, cortical thread profile, pointed tip, and hex head for controlled driver engagement during insertion. It is used with compatible veterinary orthopedic plates during TPLO procedures, compression plate fixation, neutralization plating, corrective osteotomy, long bone repair, and trauma stabilization. Veterinary orthopedic surgeons, small animal practitioners, referral hospitals, teaching institutions, and procurement teams use this screw range in TPLO and orthopedic implant trays where mid-size cortical fixation is required.

3.5mm Cortical Thread, Pointed Tip, and Hex Head Control

The 3.5mm cortex screw profile is selected when the operative plan requires stronger cortical fixation than fine 1.5mm, 2.0mm, or 2.7mm screw systems. The cortical thread pattern is intended to engage prepared cortical bone through compatible plate holes or planned bone corridors. The pointed tip supports entry into the drilled path after depth measurement, while the hex head allows engagement with a compatible screwdriver for controlled insertion and final seating. Correct driver fit is important because incomplete engagement can damage the head or reduce torque control. During placement, the surgeon maintains axial alignment, advances the screw gradually, monitors insertion resistance, and seats the head according to the plate or fixation plan. The 3.5mm diameter makes this screw useful where a larger cortical screw is appropriate but a 4.5mm screw would exceed the intended plate system or bone corridor.

TPLO Plate Fixation, Fracture Repair, and Cortical Purchase

Clinical use begins after radiographic planning, patient positioning, surgical exposure, reduction or osteotomy positioning, plate selection, drilling, and depth measurement. In TPLO procedures, Cortex Bone Screw 3.5mm may be selected for compatible plate holes where mid-size cortical fixation is required around the tibial construct. In fracture repair, the screw can support compression plates, neutralization plates, bridging constructs, and selected long bone stabilization systems. It may also be used in corrective osteotomy support, periarticular stabilization, and veterinary orthopedic trauma workflows where a 3.5mm cortical screw diameter is appropriate. The surgeon selects the correct screw length after measuring the prepared hole and confirming near cortex, far cortex, plate thickness, and planned screw purchase. Proper placement depends on compatible instrumentation, bone quality, screw trajectory, reduction stability, implant system requirements, and the chosen fixation strategy.

10mm to 50mm Length Selection for Orthopedic Implant Trays

The 10mm, 12mm, 14mm, 16mm, 18mm, and 20mm variants are selected for shorter fixation points, smaller bone corridors, and plate positions where moderate screw length is required. The 22mm, 24mm, and 26mm variants support deeper cortical purchase when the measured bone depth requires additional working length. The 30mm to 50mm option supports longer fixation requirements in larger patients, broader bone corridors, or plate positions where extended screw length is confirmed by depth measurement. Keeping the full 10mm to 50mm range in the tray helps the surgical team respond to intraoperative measurements without changing screw diameter or head style. Selection should follow drill path, plate thickness, patient size, target cortex, and final verification that the screw seats correctly without unwanted protrusion beyond the intended bone corridor.

Stainless Steel Implant Handling, Inspection, and Procurement Documentation

Stainless steel construction supports thread integrity, head geometry, shaft strength, and handling during orthopedic tray preparation. Before use, the surgical team should inspect the screw head, threads, tip, and shaft for visible damage, contamination, deformation, or packaging concerns. The hex recess should remain clean and clearly formed so the driver seats fully during insertion. Implant handling should follow facility protocol for sterile transfer, sterilization status, tray organization, documentation, and single-patient surgical use. Procurement teams can standardize Cortex Bone Screw 3.5mm variants with compatible TPLO plates, compression plates, drill bits, taps where applicable, depth gauges, hex screwdrivers, screw racks, and implant storage systems. CE marking, ISO 13485 certification, and FDA compliance language support purchasing documentation for veterinary hospitals, distributors, teaching programs, and institutional buyers. The $11.00 price, OEM availability, carton-box packing, and return and replacement support help maintain orthopedic implant inventory.

How is Cortex Bone Screw 3.5mm used in veterinary TPLO procedures? Cortex Bone Screw 3.5mm is used when a compatible TPLO plate or orthopedic construct requires mid-size cortical screw fixation. After drilling and depth measurement, the surgeon selects the correct length, engages the hex head with a compatible driver, and advances the screw through the plate hole into the prepared cortical bone path. The screw helps secure the plate according to the fixation plan. Final use depends on plate compatibility, patient size, bone quality, screw trajectory, and surgeon judgment.

Which screw length should be selected? Screw length should be selected after intraoperative depth measurement and confirmation of plate thickness, bone diameter, and intended cortical purchase. Shorter 10mm to 20mm options support moderate fixation points and smaller plate positions. The 22mm to 26mm options provide added working length where measured bone depth requires it. The 30mm to 50mm option is selected for longer bone corridors. The surgeon should verify final seating and avoid unwanted protrusion beyond the planned cortex.

How does a 3.5mm cortex screw differ from smaller cortical screws? Cortex Bone Screw 3.5mm provides a larger diameter option than 1.5mm, 2.0mm, and 2.7mm cortex screws. It is selected when bone size, plate design, and fixation demand require stronger cortical purchase. Smaller screws are used for compact plates and fine bone corridors. The 3.5mm screw is useful where the plate system and patient anatomy support mid-size cortical fixation without moving to a larger 4.5mm screw.

What driver is required for this screw? This screw uses a hex head and requires a compatible hex screwdriver from the appropriate veterinary orthopedic instrument system. The driver should seat fully before torque is applied. Correct driver fit helps reduce slipping, head damage, and incomplete insertion control. During placement, the surgeon maintains axial alignment, advances the screw gradually, monitors resistance, and stops when the head seats properly against the plate or bone surface.

What role does this screw serve in an orthopedic implant inventory? Cortex Bone Screw 3.5mm provides a mid-size cortical fixation option for TPLO plates, compression plates, long bone repair, corrective osteotomy, and selected veterinary trauma cases. It is stored with compatible plates, drill bits, taps where applicable, depth gauges, hex screwdrivers, reduction forceps, screw racks, and implant trays. Stocking 10mm to 50mm length options helps the surgical team match screw length to measured bone depth during orthopedic procedures.