Acetabular Cup Screw

Description

The Acetabular Cup Screw is a high-precision orthopedic fastener designed to provide supplemental mechanical fixation for acetabular shells during total hip replacement (THR). While many modern cups utilize a press-fit technique, these screws are essential for ensuring primary stability, especially in cases of compromised bone stock, irregular acetabular morphology, or revision surgery.

By securing the acetabular component directly into the stable bone of the ilium, ischium, or pubis, these screws neutralize rotational and tilting forces. This rigid stabilization minimizes micromotion at the bone-implant interface, which is critical for successful secondary biological ingrowth and long-term implant survivorship. Manufactured from premium Medical Grade Titanium Alloy (Ti6Al4V) or high-strength Stainless Steel, these screws offer an optimal balance of biocompatibility and mechanical pull-out resistance.

Key Features & Benefits

• Aggressive Thread Design: Features a specialized cancellous thread profile engineered for maximum “bite” into pelvic bone, providing high pull-out strength even in osteoporotic conditions.

• Self-Tapping Tip: Designed with a cutting flute that facilitates easier insertion and reduces the torque required during surgery, minimizing the risk of bone splintering.

• Low-Profile Head: The screw head is precision-machined to sit flush within the recessed holes of the acetabular cup, preventing any interference with the insertion of the polyethylene or ceramic liner.

• Superior Biocompatibility: Available in Titanium alloy, which supports osseointegration and minimizes the risk of adverse tissue reactions or corrosion over time.

• Precision Drive Interface: Features a robust hex or star-drive recess to ensure efficient torque transmission and reduce the risk of driver slippage during final tightening.

Primary Clinical Applications

• Cementless Total Hip Arthroplasty: Provides immediate “mechanical insurance” for press-fit cups to ensure they remain perfectly seated until bone ingrowth occurs.

• Revision Hip Surgery: Critical for anchoring new components in cases where significant bone loss or defects are present in the acetabulum.

• Complex Primary Trauma: Used in hip reconstructions following pelvic fractures where the acetabular wall requires additional structural reinforcement.

• Dysplastic Hip Reconstruction: Essential for securing components in shallow or abnormally shaped sockets where standard press-fit stability cannot be guaranteed.

Buy Acetabular Cup Screws Online

Equip your orthopedic surgical team with the hardware needed for uncompromising acetabular stability. Our screws are available in a variety of lengths and diameters to accommodate the complex anatomy of the pelvis. Whether for routine primary cases or high-complexity revisions, these screws provide the dependable anchorage required for successful, long-term hip arthroplasty outcomes.