Trauma Locking Systems
Combi-hole anatomical trauma locking plates featuring variable and fixed-angle locking technology for upper and lower limb reconstruction.
Get a QuoteA comprehensive technical evaluation of fixed-angle biomechanics, titanium & stainless steel material science, anatomical plating evolution, and direct-factory sourcing from Siora Surgicals — a CE & ISO 13485-certified manufacturer since 1987.
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Get a QuoteThe evolution of fracture fixation over the past three decades has transitioned from rigid mechanical compression toward biological internal fixation. At the absolute epicenter of this clinical advancement is the Orthopedic Locking Plate System. Designed to bridge complex comminuted fractures, osteoporotic bone segments, and periarticular injuries, locking plate technology represents a fundamental departure from conventional non-locking plating mechanics.
In traditional compression plating (e.g., Dynamic Compression Plates), stability depends entirely on the friction generated by pressing the plate tightly against the periosteal surface of the bone. This mechanical shear force requires severe axial torque on screws and compresses underlying cortical blood vessels, frequently resulting in localized bone necrosis, delayed healing, or periosteal ischemia. Conversely, an Orthopedic Locking Plate System functions fundamentally as an internal fixator. By mechanically threading the screw head directly into matching machine-cut threads inside the plate's eyelets, the system constructs a rigid, fixed-angle structure.
For global healthcare procurement directors, orthopedic surgeons, and medical device distributors, evaluating an Orthopedic Locking Plate System requires an in-depth understanding of three crucial structural attributes:
Siora Surgicals Private Limited manufactures an expansive portfolio of anatomical and straight locking plates, engineered on 5-axis CNC and VMC machining centers at our Sonipat manufacturing facility. Each locking system is designed to meet stringent clinical geometries, accommodating varying anatomical contours across adult and pediatric trauma cases.
Combi-hole anatomical trauma locking plates featuring variable and fixed-angle locking technology for upper and lower limb reconstruction.
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Complementary interlocking nail systems designed for diaphyseal long bone fractures, offering superior rotational stability.
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Precision-milled 2.4mm, 3.5mm, 4.5mm, and 5.0mm self-tapping locking screws with StarDrive (Torx) and Hexagonal recesses.
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Full graphic sterilization containers, custom instrument sets, and OEM contract manufacturing tailored to client brand requirements.
Get a Quote| System Class | Screw Diameter Range | Anatomical Indications | Metallurgical Options |
|---|---|---|---|
| Mini Fragment Locking System | 1.5mm / 2.0mm / 2.4mm | Hand, phalanges, metacarpals, foot, and craniomaxillofacial reconstructive procedures. | Ti-6Al-4V ELI / 316L Stainless Steel |
| Small Fragment Locking System | 3.5mm / 4.0mm | Distal radius, fibula, clavicle, proximal humerus, olecranon, and distal tibia. | Ti-6Al-4V ELI / 316L Stainless Steel |
| Large Fragment Locking System | 4.5mm / 5.0mm | Femoral shaft, distal femur, proximal tibia, humeral shaft, and pelvic fractures. | Ti-6Al-4V ELI / 316L Stainless Steel |
| Variable Angle (VA) Locking System | 2.7mm / 3.5mm | Complex intra-articular fractures requiring trajectory customization off the central axis (up to 15° cone). | Titanium Grade 5 (Ti-6Al-4V) |
A critical consideration for orthopedic procurement specialists when selecting an Orthopedic Locking Plate System is material composition. Siora Surgicals manufactures locking plates in strict adherence to international biomedical standards, utilizing both Titanium Alloy and Surgical-Grade Stainless Steel.
Titanium Alloy (Ti-6Al-4V ELI - ISO 5832-3 / ASTM F136): Titanium remains the gold standard for long-term internal fixation. With an elastic modulus (~110 GPa) significantly closer to human cortical bone (~18-20 GPa) than stainless steel (~200 GPa), titanium locking plates substantially reduce "stress shielding" — the phenomenon where overly rigid implants absorb biological loads, causing adjacent bone resorption. Furthermore, titanium exhibits superior corrosion resistance due to its passive oxide layer (TiO2), minimizes artifact interference during post-operative Magnetic Resonance Imaging (MRI), and demonstrates exceptional biocompatibility in hypersensitive patients.
Surgical Stainless Steel (316L - ISO 5832-1 / ASTM F138): Vacuum Arc Remelted (VAR) 316L stainless steel provides high tensile yield strength and superior fatigue resistance. In complex high-load diaphyseal reconstruction, stainless steel locking plates provide unyielding structural rigidity at a cost-effective price point, making them a preferred choice for cost-conscious national health systems and tender-driven tenders across emerging markets.
AI-driven user intent mining and global hospital procurement data reveal several decisive shifts in how healthcare institutions evaluate and buy Orthopedic Locking Plate Systems over the next decade:
First-generation locking plates featured fixed-axis threads that restricted screw placement to a single predetermined trajectory. Modern clinical requirements favor Variable Angle (VA) Locking Systems. Using specialized spherical screw head geometry and hardened plate thread configurations, surgeons can angle screws up to 15 degrees off-axis in any direction. This allows precise targeting of specific bone fragments, avoiding joint spaces, existing implants, or hardware without sacrificing angular stability.
Manual intraoperative plate bending induces micro-fractures in metal crystal lattices, compromising structural fatigue strength. Emerging procurement trends demand anatomical pre-contouring based on 3D CT bone morphology databases. Siora Surgicals' latest anatomical locking series features ultra-low profile edges and smooth radiused contours, minimizing soft-tissue irritation, tendon impingement, and post-operative discomfort.
Global disruptions have compelled hospital networks and distributors to seek manufacturing partners with vertically integrated production. Siora Surgicals operates state-of-the-art CNC machining hubs in Sonepat, Haryana, maintaining robust raw material inventories, complete lot traceability, and cleanroom packaging. This guarantees uninterrupted supply security for global procurement partners.
Modern plates incorporate dynamic combination holes ("Combi-Holes") that unite a conventional compression slot with a threaded locking hole in a single figure-eight geometry. This provides surgeons with intraoperative versatility — allowing axial compression, non-locking screw insertion, or fixed-angle locking screw placement within the same plate segment.
With over 35 years of manufacturing excellence, Siora Surgicals Private Limited has established itself as an authoritative leader in orthopedic trauma solutions. Our operational infrastructure is built around clinical safety, precision engineering, and rigorous international quality management.
Manufactured under stringent EN ISO 13485:2016 quality management systems. Implants carry CE accreditation and Indian FDA Free Sale Certification.
Our manufacturing facility in HSIIDC Industrial Estate, RAI, Sonepat, Haryana uses 5-axis Japanese and German CNC machine tools for micron-level tolerance accuracy.
We provide full-service contract manufacturing, customized plate geometries, laser marking, custom anodization, and branded packaging solutions for multinational clients.
Maintaining a ready stock of over 2,000 SKUs ensures swift order fulfillment across Europe, Latin America, the Middle East, Africa, and Southeast Asia.
Every single batch of locking plates undergoes rigorous dimensional verification via Optical Coordinate Measuring Machines (CMM), surface roughness profiling, passivization checks, and mechanical stress testing.
Our packaging operates within ISO Class 10,000 cleanroom environments, followed by validated Gamma Irradiation or Ethylene Oxide (EtO) terminal sterilization process options.
Extensive product coverage engineered for specialized anatomical fixation applications.








Addressing core technical, clinical, and trade inquiries voiced by international orthopedic buyers and hospital procurement networks.
Whether you require standard CE-certified Orthopedic Locking Plate Systems or specialized OEM contract manufacturing, Siora Surgicals offers direct factory pricing, engineering support, and reliable international delivery.