4.0/6.5mm Cancellous Screw

4.0/6.5mm Cancellous Screw Video

4.0/6.5mm Cancellous Screw PDF

4.0/6.5mm Cancellous Screw Specification

Product	Picture	REF	Specification
4.0mm Cancellous Screw (full threaded)		RSQSP4012	4.0*12mm
		RSQSP4014	4.0*14mm
		RSQSP4016	4.0*16mm
		RSQSP4018	4.0*18mm
		RSQSP4020	4.0*20mm
		RSQSP4022	4.0*22mm
		RSQSP4024	4.0*24mm
		RSQSP4026	4.0*26mm
		RSQSP4028	4.0*28mm
		RSQSP4030	4.0*30mm
		RSQSP4032	4.0*32mm
		RSQSP4034	4.0*34mm
		RSQSP4036	4.0*36mm
		RSQSP4038	4.0*38mm
		RSQSP4040	4.0*40mm
		RSQSP4042	4.0*42mm
		RSQSP4044	4.0*44mm
		RSQSP4046	4.0*46mm
		RSQSP4048	4.0*48mm
		RSQSP4050	4.0*50mm
6.5 Cancellous Screw (full threaded)		RSQSP6550	6.5*50mm
		RSQSP6555	6.5*55mm
		RSQSP6560	6.5*60mm
		RSQSP6565	6.5*65mm
		RSQSP6570	6.5*70mm
		RSQSP6575	6.5*75mm
		RSQSP6580	6.5*80mm
		RSQSP6585	6.5*85mm
		RSQSP6590	6.5*90mm

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4.0/6.5mm Cancellous Screw : A Comprehensive Guide

The 4.0/6.5mm Cancellous Screw is a specialized orthopedic implant designed for use in cancellous bone, which is less dense and more porous than cortical bone. These screws provide strong purchase in cancellous bone due to their wider threads, making them ideal for fixation in metaphyseal regions or for compression at fracture sites. This guide explores the features, concepts, and applications of cancellous screws in modern orthopedic surgery, offering insights for patients, medical professionals, and researchers.

What is 4.0/6.5mm Cancellous Screw？

The 4.0/6.5mm Cancellous Screw is a threaded orthopedic implant optimized for fixation in cancellous bone. The screw’s diameter—4.0mm or 6.5mm—determines its application, with smaller sizes used for delicate anatomical regions like the wrist, and larger sizes applied to load-bearing areas such as the pelvis or proximal femur. These screws can function independently or as part of a fixation system, providing compression and stabilization for fracture healing.

4.0/6.5mm Cancellous Screw Features

Wide Thread Pitch

Enhances grip in porous cancellous bone, ensuring stable fixation.

Partially or Fully Threaded Options

Partially threaded screws provide compression across fracture sites, while fully threaded screws offer uniform stabilization.

Self-Tapping Tips

Simplifies insertion by cutting threads during placement, reducing operative time.

Biocompatible Materials

Typically made from titanium or stainless steel for strength, corrosion resistance, and compatibility with biological tissues.

Cannulated Design (Optional)

Facilitates guided placement over a guidewire for precision in minimally invasive procedures.

4.0/6.5mm Cancellous Screw Advantages

Strong Bone Purchase

Wide threads provide superior grip in cancellous bone, ensuring stable fixation.

Compression Capability

Partially threaded screws effectively compress fracture fragments, accelerating healing.

Versatility

Available in various sizes and designs, making it suitable for multiple anatomical regions and fracture types.

Ease of Use

Self-tapping tips simplify insertion, reducing the need for pre-drilling in many cases.

Minimally Invasive Options

Cannulated designs allow for precise placement with minimal disruption to surrounding tissues.

4.0/6.5mm Cancellous Screw Treatment of Fracture Types

Metaphyseal Fractures

Provides secure fixation in regions with a high proportion of cancellous bone.

Compression Across Fractures

Generates stability and promotes healing through effective compression.

Osteochondral Fractures

Stabilizes articular cartilage and bone in joint injuries.

Pelvic Fractures

Larger screws are used to stabilize the pelvis and sacroiliac joints.

Proximal Femur Fractures

Often used in conjunction with plates or nails for enhanced fixation.

Risks of 4.0/6.5mm Cancellous Screw Surgery

Infection

Postoperative infections, though rare, require stringent aseptic protocols.

Screw Loosening or Backout

High mechanical loads or poor bone quality can compromise fixation.

Nonunion or Malunion

Improper placement or insufficient compression may hinder proper healing.

Soft Tissue Irritation

Screws placed too superficially can cause discomfort or damage to surrounding tissues.

Neurovascular Injury

Misplacement near critical structures increases the risk of complications.

4.0/6.5mm Cancellous Screw Future Marke

The 4.0/6.5mm Cancellous Screw is poised for continued growth and innovation in the global orthopedic implant market.

Advancements in materials science may lead to bioactive coatings that enhance bone integration and healing. The adoption of patient-specific screws through 3D printing technology will further improve surgical precision. As minimally invasive techniques gain popularity, the demand for cannulated screws is expected to rise. With an increasing global incidence of fractures due to aging populations and trauma, the cancellous screw market is set to expand significantly.

Summary

The 4.0/6.5mm Cancellous Screw is a vital component of modern orthopedic surgery, providing effective fixation in cancellous bone regions. Its ability to offer stability, compression, and versatility makes it indispensable for fracture management. With ongoing advancements in design and material science, cancellous screws will continue to play a pivotal role in enhancing surgical outcomes and improving patient care.

Warm reminder: This article is for reference only and cannot replace the doctor's professional advice. If you have any questions, please consult your attending physician.