DHS instrument set
DHS instrument set

D.H.S instrument set

The DHS (Dynamic Hip Screw) Instrument Set is a specialized orthopedic toolkit engineered for the internal fixation of proximal femoral fractures. This comprehensive set provides all the precision instruments required for the “gold standard” treatment of intertrochanteric and subtrochanteric hip fractures.

Constructed from high-grade 316L stainless steel, the set features a modular design including triple reamers, lag screw inserters, and fixed-angle guides (130°–140°). It is specifically optimized to facilitate controlled dynamic compression, ensuring anatomical stability and promoting rapid bone healing during weight-bearing.

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A DHS (Dynamic Hip Screw) Instrument Set is a cornerstone of orthopedic trauma surgery, specifically engineered for the internal fixation of proximal femoral fractures (intertrochanteric, subtrochanteric, and basilar neck).

This system is unique because it allows for controlled dynamic compression, where the lag screw slides within the plate barrel during patient weight-bearing, promoting natural bone healing.

Technical Product Overview

Our DHS Instrument Set is a complete surgical solution, manufactured from premium 316L Surgical-Grade Stainless Steel to ensure maximum torque resistance and durability through repeated autoclave cycles.

Comprehensive Instrument List & Functions

The set is organized to follow the logical flow of the surgical procedure:

1. Internal Bone Preparation

  • Threaded Guide Wires (Ø2.5mm): Used for initial fracture reduction and to establish the precise trajectory for the lag screw.

  • DHS Triple Reamer: A high-precision tool that performs three tasks in one pass: drilling the hole for the lag screw, reaming for the plate barrel, and countersinking for the plate-barrel junction.

  • DHS Tap (Ø12.5mm): Used to create threads in dense bone, ensuring the lag screw can be inserted without excessive force that might displace the fracture.

2. Positioning & Measurement

  • DHS Angle Guides (130°, 135°, 140°): Fixed-angle guides that ensure the guide wire and reamer enter the femur at the exact anatomical angle of the chosen plate.

  • Direct Measuring Device: Allows the surgeon to read the required lag screw length directly from the exposed portion of the guide wire.

  • Centering Sleeves: Designed to stabilize the tap and the lag screw wrench, ensuring they remain perfectly centered within the reamed hole.

3. Insertion & Final Fixation

  • Lag Screw Wrench (Inserter): A cannulated instrument used to drive the lag screw into the femoral head over the guide wire.

  • DHS/DCS Impactor: Used to seat the side plate firmly against the lateral cortex of the femur.

  • T-Handle (Quick Coupling): An ergonomic handle that fits various taps and reamers for manual control and tactile feedback.

  • Hexagonal Screwdriver (3.5mm): Used for the insertion of 4.5mm cortical screws to secure the side plate to the femoral shaft.

Why Choose This Set?

Feature Surgical Benefit
Cannulated Design Allows all major steps to be performed over a guide wire, increasing accuracy.
Color-Coded Trays Facilitates rapid instrument identification for OR staff, reducing surgery time.
Matte Finish Reduces glare under intense operating room lights for better visibility.
Universal Compatibility Fully compatible with standard DHS and DCS (Dynamic Condylar Screw) implants.