Synthes 387.23 Orthopedic 4.0mm Tap 5"

Synthes 387.23 Orthopedic 4.0mm Tap 5"

• Model: 387.23
• 4.0mm for cortex shaft
• Overall Length: 5 inches (12.7cm)

The Synthes 387.23 4.0 mm Tap (5″) is a tap instrument used in orthopedic surgery to create internal threads in bone to receive 4.0 mm screws. After a pilot hole or gliding hole is drilled to the proper depth, the tap cuts threads allowing the screw to thread in smoothly, reducing insertion torque, ensuring precise fit, and improving the fixation strength. The 4.0 mm size is fairly common in intermediate‑sized screws, used in plate fixation for medium bone fragments or in cases where stronger fixation is needed compared to smaller screws.

At approximately 5 inches (about 125‑130 mm), this tap provides enough length to reach moderate depth sites within the body or in situations where some reach is needed (deep fracture sites, limb bones with tissue overlay), but is short enough to offer good control and leverage by the surgeon. The construction in surgical grade stainless steel means it can endure sterilization cycles, resist corrosion, and maintain sharpness of the cutting flutes. The drive end (handle interface) is likely designed to engage securely with the standard tap handle or T‑handle to allow application of accurate torque, preventing slippage or misalignment while tapping.

Clinically, using a well‑matched, sharp tap like this one is vital for avoiding problems such as cross‑threading, incomplete seating of screws, or excessive cortical damage. Precise taps help in reducing the stress on both the tool and the screw, minimizing microfracture or splitting of the bone, especially in cortical bone. However, surgical teams must ensure that the pilot hole is of correct dimensions, the tap is aligned straight, and that the tap is advanced with care (not forcing in), possibly using lubrication or tapping incrementally if required. Regular inspection of taps for wear, burrs, or damage is important, since even small defects in the thread profile can degrade performance and safety.

This surgical instrument is categorized as limited use and are in excellent condition. It may be new out of the original manufacturer's packaging or have similar characteristics indicative of minimal prior use. Despite it's limited usage, it has maintained an exceptional quality suitable for medical procedures.