The Story
Synthes 309.520 Conical Extraction Screw For 2.7mm & 3.5mm Cortex Screws
• Model: 309.520
• For 2.7mm & 3.5mm Cortex Screws
A hand-held manual surgical instrument designed to insert or extract an implantable orthopedic device (e.g., a bone nail, spiral blade, or bone fixation plate) through application of a striking or screwing force. It is an instrument in a one-piece or modular configuration with a mechanism that will attach and/or lock to part of the implant, and a mechanism to apply the striking force (e.g., on a pad/flange) using a surgical hammer or a weight that can slide along a shaft, or a mechanism for twisting (screwing) (e.g., T-handle). This is a reusable device.
The Synthes 309.520 Conical Extraction Screw is a precision-engineered instrument crucial for orthopedic hardware removal when conventional access fails. In cases where cortex screws—particularly 2.7 mm and 3.5 mm in diameter—have compromised drive recesses, this conical tool offers a mechanical anchoring solution by embedding into the damaged recess and enabling counterclockwise extraction without the need for heat or drilling.
Functioning as a component of the Synthes Screw Removal Set, the 309.520 integrates smoothly with quick-coupling handles or extension shafts, allowing surgeons to maintain alignment and axial pressure during extraction. As specified in technical guides, the extraction screw should always be inserted as vertically as possible into the recess and operated manually—power tools are explicitly discouraged to avoid further damage.
Highly valued for its specificity and effectiveness, the 309.520 minimizes the need for invasive techniques like reaming or creating new access, thereby preserving surrounding bone and soft tissue integrity. Its inclusion in removal trays and surgical kits underscores its role as a vital backup device—especially in revision surgeries or implant retrieval cases where screw recesses are often stripped or inaccessible.
Details & Craftsmanship
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Description
Synthes 309.520 Conical Extraction Screw For 2.7mm & 3.5mm Cortex Screws
• Model: 309.520
• For 2.7mm & 3.5mm Cortex Screws
A hand-held manual surgical instrument designed to insert or extract an implantable orthopedic device (e.g., a bone nail, spiral blade, or bone fixation plate) through application of a striking or screwing force. It is an instrument in a one-piece or modular configuration with a mechanism that will attach and/or lock to part of the implant, and a mechanism to apply the striking force (e.g., on a pad/flange) using a surgical hammer or a weight that can slide along a shaft, or a mechanism for twisting (screwing) (e.g., T-handle). This is a reusable device.
The Synthes 309.520 Conical Extraction Screw is a precision-engineered instrument crucial for orthopedic hardware removal when conventional access fails. In cases where cortex screws—particularly 2.7 mm and 3.5 mm in diameter—have compromised drive recesses, this conical tool offers a mechanical anchoring solution by embedding into the damaged recess and enabling counterclockwise extraction without the need for heat or drilling.
Functioning as a component of the Synthes Screw Removal Set, the 309.520 integrates smoothly with quick-coupling handles or extension shafts, allowing surgeons to maintain alignment and axial pressure during extraction. As specified in technical guides, the extraction screw should always be inserted as vertically as possible into the recess and operated manually—power tools are explicitly discouraged to avoid further damage.
Highly valued for its specificity and effectiveness, the 309.520 minimizes the need for invasive techniques like reaming or creating new access, thereby preserving surrounding bone and soft tissue integrity. Its inclusion in removal trays and surgical kits underscores its role as a vital backup device—especially in revision surgeries or implant retrieval cases where screw recesses are often stripped or inaccessible.
