DHS/DCS Implants & Instruments Set Upgraded – 95° and 135° Femoral Fixation

DHS/DCS Implants & Instruments Set Upgraded, SKU PS-OP-7199, is a German stainless steel orthopedic fixation inventory combining 137 implants, 25 reusable instruments, and one container. Implant options comprise 135° standard-barrel DHS plates in 4, 5, and 6 holes (166.024–166.026); 95° DCS plates in 6, 8, and 10 holes (167.006, 167.008, 167.010); 12.5 mm lag screws from 75–105 mm (168.075–168.105); 4.5 mm self-tapping cortex screws from 42–90 mm (106.242–106.290); and 6.5 mm cancellous screws with 16 mm threads from 50–110 mm (108.050–108.110, with 109.095). The instrument module contains three 2.5 × 250 mm threaded trocar guide wires, quick-coupling T-handle, direct measurer, DHS and DCS triple reamers, wrench, Type I and II impactors, tap, short and long centering sleeves, extraction coupling screw, 95° and 135° guides, 3.5 mm hex driver, 4.5 mm cortex tap, 3.2/6.5 and 3.2/4.5 mm combined sleeves, neutral and loaded drill guide, countersink, 3.2 and 4.5 × 130 mm drills, and depth gauge. Trauma surgeons use the system for intertrochanteric, selected proximal femoral, distal femoral, and supracondylar fracture fixation in orthopedic operating rooms and teaching hospitals.

Guided Preparation and Plate-Screw Mechanics

The fixation workflow is built around a 2.5 mm threaded trocar wire that establishes the intended axis and maintains osseous purchase during fluoroscopic assessment. The 135° DHS guide references the proximal femoral neck-shaft relationship, while the 95° DCS guide controls condylar screw orientation across the distal femur. A direct measuring device reads the required lag-screw length over the positioned wire. Dedicated triple reamers then create concentric stepped channels for the 12.5 mm screw, plate barrel, and implant junction without separate freehand trajectories. The DHS/DCS tap forms the lag-screw thread path, and the wrench advances the implant over the wire. The quick-coupling T-handle transfers manual torque and permits controlled exchange between reaming, tapping, and driving components. Short and long centering sleeves support coaxial passage at different working depths. Type I and Type II impactors provide alternative contact geometry for seating the selected barrel plate against the lateral cortex. The 3.5 mm hexagonal screwdriver engages compatible screw recesses, while the 4.5 mm cortex tap prepares threads when required by bone density or the operative technique. Neutral and loaded positions on the drill guide allow either centered drilling or eccentric placement for axial compression. Combined sleeves constrain drilling and tapping, the countersink prepares the 8.0 mm screw-head seat, and the long coupling screw creates axial purchase during DHS or DCS lag-screw removal.

Proximal and Distal Femoral Fixation Workflow

During intertrochanteric fracture fixation, reduction is established before the 135° guide is seated on the lateral proximal femur and the threaded wire is advanced toward the femoral-head center under anteroposterior and lateral fluoroscopy. The direct measurer determines lag-screw length; the DHS triple reamer prepares the neck and barrel path, and tapping is performed when the planned technique requires thread formation. The selected 75–105 mm lag screw is inserted, followed by a 4-, 5-, or 6-hole standard-barrel plate according to fracture extension, lateral cortical support, and the required diaphyseal working length. For distal femoral or supracondylar reconstruction, the 95° guide sets the DCS trajectory, and the corresponding reamer prepares the condylar channel before a 6-, 8-, or 10-hole side plate is seated. The 3.2 mm drill supports pilot preparation for 4.5 mm cortex or 6.5 mm cancellous screws through the corresponding sleeve. The 4.5 mm drill creates a gliding hole when interfragmentary lag technique is used with a compatible 4.5 mm cortex screw. A depth gauge determines bicortical or metaphyseal screw length after drilling. This configuration supports primary open reduction and internal fixation, corrective femoral osteotomy, and revision procedures requiring compatible sliding-screw extraction.

Implant Dimensions and Instrument Selection

The 135° DHS plates share a 38 mm standard barrel and differ by 4-, 5-, or 6-hole shaft length, allowing the side plate to span the selected proximal femoral segment. The 95° DCS plates provide 6-, 8-, and 10-hole options for distal femoral constructs requiring progressively longer diaphyseal fixation. Standard 12.5 mm lag screws increase in 5 mm increments from 75 to 105 mm for measured placement within the femoral head or condylar segment. The 4.5 mm self-tapping cortex range covers 42–90 mm; seven units are supplied at 42–75 mm and five at 80–90 mm to support multiple bicortical plate positions. The 6.5 mm cancellous series has a 16 mm thread and spans 50–110 mm in 5 mm increments, with three of each length for metaphyseal purchase. The 3.2/4.5 mm combined sleeve coordinates cortex drilling and tapping, whereas the 3.2/6.5 mm version guides preparation for the larger cancellous screw. The 3.5 mm hex driver is selected for matching screw heads. Type I and II impactors are chosen according to plate-barrel access and seating interface, while the short or long centering sleeve is matched to the depth of the cannulated working stage.

Stainless Steel Processing and Procurement Documentation

German-forged stainless steel provides the strength, dimensional stability, and corrosion resistance required across plate barrels, screw threads, guide surfaces, cutting flutes, and torque-transmitting instrument shafts. A satin instrument finish reduces reflected operating-light glare and supports visual inspection for residual soil, pitting, deformation, dulling, or surface wear. Reusable instruments are supplied non-sterile and enter the healthcare facility’s validated decontamination and steam-sterilization workflow before first use and after each procedure. Guide-wire cannulations, reamers, taps, drill sleeves, couplings, and depth-gauge interfaces require prompt soil control, thorough cleaning, rinsing, drying, inspection, tray organization, packaging, and sterilization under the validated cycle. Implant inventory must remain traceable by code, size, lot, and quantity; any component presented to the sterile field is handled according to its labeling and facility implant-control policy. CE marking and manufacture under an ISO 13485 quality management system support conformity documentation, production controls, traceability, and supplier qualification. For United States purchasing, FDA-compliant procurement requires review of applicable establishment, device-listing, labeling, intended-use, and import documentation for the delivered configuration. Before release to the operating room, staff should reconcile the 137 implants and 25 instruments against the table and remove damaged, used, incomplete, or contaminated items from available stock.

Specification

How does the upgraded set differ from the DHS/DCS Plate Instruments Set?
The DHS/DCS Plate Instruments Set provides operative tools for guided reaming, tapping, lag-screw insertion, and plate seating but does not include the same implant inventory. The DHS/DCS Implants & Instruments Set Upgraded combines those core controls with 135° DHS plates, 95° DCS plates, lag screws, cortex screws, and cancellous screws. It also adds large-fragment drilling, depth measurement, countersinking, tapping, and neutral or loaded guide functions. This allows one configured inventory to support both sliding-screw preparation and plate-shaft fixation. The inclusion of Type I and Type II impactors provides two seating interfaces for the selected construct. Procurement teams should choose between the products according to whether reusable instrumentation alone or a combined implant-and-instrument inventory is required.

How are the plate and screw sizes selected for proximal or distal femoral fixation?
A 135° standard-barrel DHS plate is selected for a compatible proximal femoral construct after fracture reduction and guide-wire trajectory planning. Four-, five-, and six-hole versions provide different diaphyseal spans according to fracture extension and cortical fixation requirements. The 95° DCS plates use six, eight, or ten holes for distal femoral or supracondylar constructs requiring longer side-plate coverage. Lag-screw length from 75–105 mm is selected from the direct measurement taken over the positioned wire. The 4.5 mm cortex screws address diaphyseal plate fixation, while the 6.5 mm partially threaded cancellous range provides metaphyseal purchase where the construct requires it. The DHS/DCS Implants & Instruments Set Upgraded organizes these dimensions for selection against imaging, measured bone depth, plate geometry, and the compatible operative technique.

What do CE, ISO 13485, and FDA-compliant procurement mean for this set?
CE marking supports the applicable European conformity documentation for the supplied medical-device configuration. ISO 13485 identifies the quality management framework used for production controls, traceability, corrective action, and controlled device records. These credentials support hospital and distributor supplier qualification but do not replace destination-market review. For United States purchasing, FDA-compliant procurement includes evaluation of the applicable establishment, listing, labeling, intended-use, and import records. The DHS/DCS Implants & Instruments Set Upgraded can be accompanied by commercial and quality documentation for the delivered SKU and configuration. Procurement staff should retain records linking each implant code, size, quantity, and lot to the received inventory.

How do the quick coupling, guides, sleeves, and impactors control the procedure?
The quick-coupling T-handle captures compatible shafts and permits instrument exchange while maintaining manual torque control. The 135° and 95° guides establish the prescribed guide-wire relationship for DHS and DCS constructs. Short and long centering sleeves constrain cannulated preparation at different access depths and reduce lateral movement around the planned axis. Combined drill-and-tap sleeves guide 3.2 mm preparation for 4.5 or 6.5 mm fixation pathways. The neutral and loaded drill guide changes the hole position from centered drilling to eccentric placement when controlled plate compression is intended. Within the DHS/DCS Implants & Instruments Set Upgraded, Type I and II impactors transmit seating force to the barrel plate through their respective contact geometries.

How should hospitals receive, sterilize, and replenish this combined inventory?
Receiving personnel should reconcile 137 implants, 25 instruments, and the container against the code-and-quantity tables before acceptance. Implant codes, dimensions, quantities, and lots should be recorded separately from the reusable instrument inventory. Sterile processing should clean cannulations, cutting flutes, threads, sleeves, couplings, drills, taps, and measuring surfaces before packaging and steam sterilization under the validated facility cycle. Unused implant stock must be controlled according to its labeling, packaging status, and hospital implant policy rather than treated as a routine reusable instrument. Following surgery, staff should inspect guide wires, reamers, drill bits, impactors, drivers, and gauges for deformation, wear, or incomplete engagement. OEM configuration, replacement tools, implant replenishment, and documentation support are available for the DHS/DCS Implants & Instruments Set Upgraded.