4.0mm Cancellous Screw – Short Thread

Description

The 4.0mm Cancellous Screw – Short Thread (Non-Locking) is a meticulously engineered orthopedic implant designed for robust and precise fixation in cancellous, or spongy, bone. This specialized screw is a cornerstone in trauma care and reconstructive orthopedic surgery, offering surgeons a reliable solution for managing specific fracture types.

When you need dependable performance for small bone fixation, particularly where controlled compression is paramount, this 4.0mm cancellous screw with its short thread profile delivers exceptional stability and surgical precision. It’s an essential tool for achieving optimal patient outcomes in various orthopedic procedures.

Understanding the 4.0mm Cancellous Screw – Short Thread

A cancellous screw is characterized by its deep, widely spaced threads, optimized for gripping the softer, more porous structure of cancellous bone. The “4.0mm” refers to the screw’s diameter, indicating its suitability for a range of anatomical sites.

The defining feature of this particular implant is its short partial thread. Unlike fully threaded screws, the short thread design ensures that a portion of the screw shaft remains smooth. This allows the screw head to compress the bone fragments together as it’s tightened, generating controlled interfragmentary compression across the fracture site. This mechanism is crucial for promoting primary bone healing and stability.

Key Features and Benefits

This 4.0mm cancellous screw short thread offers a combination of features that contribute to its efficacy in orthopedic surgery:

• Optimized Thread Profile: The deep cancellous thread ensures excellent purchase and superior pull-out strength in softer bone, minimizing the risk of loosening.
• Controlled Compression: The short partial thread design is engineered to create precise interfragmentary compression, essential for stabilizing fractures and encouraging healing.
• Non-Locking Design: As a non-locking screw, it functions by compressing bone fragments together, providing stability through friction and direct compression. This makes it versatile for various fixation strategies.
• Biocompatible Materials: Manufactured from high-quality medical-grade stainless steel or titanium, ensuring superior durability, excellent corrosion resistance, and long-term clinical reliability within the body.
• Surgical Precision: Designed for ease of insertion and reliable performance, aiding surgeons in achieving accurate reduction and stable fixation.

Why Choose a Short Thread Cancellous Screw?

The choice of a short thread cancellous screw is often dictated by the specific biomechanical requirements of a fracture. Its primary advantage lies in its ability to generate compression. When the threaded portion engages the far cortex (or a bone fragment distal to the fracture) and the screw head compresses the near cortex (or proximal fragment), the fracture fragments are drawn together. This controlled compression is vital for:

• Interfragmentary Stability: Directly opposing fracture surfaces, reducing micromotion, and promoting direct bone healing.
• Gap Closure: Effectively closing small gaps between bone fragments, which is critical for healing.
• Load Sharing: Allowing the bone itself to bear some of the load, rather than the implant solely bearing all stress.

This mechanism is particularly beneficial in metaphyseal and periarticular fractures where bone quality might be compromised or where precise fragment approximation is needed.

Ideal Applications and Use Cases

The 4.0mm cancellous screw – short thread is a versatile implant commonly employed in a variety of orthopedic procedures. Its design makes it particularly suitable for:

• Periarticular Fractures: Fractures occurring near a joint, such as those in the ankle, knee, or wrist, where precise reduction and compression are critical for restoring joint function.
• Metaphyseal Fractures: Fractures in the wider parts of long bones, adjacent to the growth plate, which often involve cancellous bone.
• Small Bone Fractures: Fractures in smaller bones of the body, including the foot (e.g., calcaneus, talus, metatarsals), hand (e.g., carpals, metacarpals, phalanges), and wrist.
• Trauma Care: Providing stable fixation for acute fractures in cancellous bone regions.
• Reconstructive Orthopedic Surgery: Used in procedures requiring bone grafts or osteotomies where compression is needed to promote fusion.

It can be used independently for isolated fractures or in conjunction with non-locking plating systems to enhance stability, depending on the surgeon’s assessment and specific surgical requirements.

Specifications and Product Details

This 4.0mm cancellous screw product is designed to meet rigorous medical standards, ensuring consistent quality and performance.

• Diameter: 4.0mm
• Thread Type: Cancellous, deep profile
• Thread Design: Short partial thread (non-locking)
• Material Options: Medical-grade Stainless Steel or Titanium
• Sterility: Typically supplied sterile, ready for immediate surgical use.
• Compatibility: Compatible with standard orthopedic instrumentation for 4.0mm screws.

For specific lengths and additional details, please refer to the product catalog or contact our sales team. We ensure that our trauma implants product range meets the highest industry standards for safety and efficacy.

Buy 4.0mm Cancellous Screw – Short Thread Online

For orthopedic professionals and procurement specialists, the convenience of being able to buy 4.0mm Cancellous Screw Short Thread online is invaluable. We offer a streamlined process to acquire high-quality, dependable orthopedic implants for your practice or facility.

Choosing the right implant is critical for patient outcomes. This non-locking screw product provides an excellent balance of controlled compression, stability, and surgical precision, making it a reliable choice for a wide range of cancellous bone fixation needs. Invest in quality and ensure dependable performance in your trauma care and reconstructive orthopedic surgeries.

Frequently Asked Questions (FAQ)

What is a 4.0mm cancellous screw – short thread?

A 4.0mm cancellous screw – short thread is an orthopedic implant with a 4.0mm diameter and deep, widely spaced threads designed for fixation in spongy (cancellous) bone. The “short thread” means only a portion of the screw has threads, allowing it to generate controlled compression across a fracture site as it’s tightened.

What are the primary benefits of a short-thread design?

The main benefit of a short-thread design is its ability to create interfragmentary compression. By engaging the bone fragments on either side of a fracture and drawing them together, it enhances stability, promotes direct bone healing, and helps close gaps between bone fragments.

In which anatomical areas is this screw typically used?

This 4.0mm cancellous screw is commonly used for fractures in cancellous bone regions, particularly in periarticular (near joints) and metaphyseal areas. Specific examples include fractures of the ankle, foot (e.g., calcaneus), wrist, and hand.

Is this a locking screw?

No, the 4.0mm Cancellous Screw – Short Thread is a non-locking screw. It achieves stability through compression and friction between bone fragments, rather than through a fixed angle construct with a plate, which is characteristic of locking screws.

What materials are these screws made from?

These screws are typically manufactured from high-quality medical-grade stainless steel or titanium. Both materials are chosen for their excellent biocompatibility, strength, and corrosion resistance, ensuring long-term reliability within the body.