4.5mm Pediatric Eight-plate System | Guided Growth Implants for Hemiepiphysiodesis & Deformity Correction

High-Strength 4.5mm Pediatric Eight-plate for Guided Growth

At OrthoPro, we specialize in providing advanced orthopedic solutions that cater to the specific needs of pediatric and adolescent patients. The 4.5mm Pediatric Eight-plate is our heavy-duty guided growth system, specifically engineered for larger patients or those approaching skeletal maturity where higher mechanical forces are present. This implant system offers a minimally invasive method for correcting angular deformities such as knock-knees (genu valgum) and bowlegs (genu varum) without the need for osteotomy.

Mechanism of Action: Hemiepiphysiodesis

The 4.5mm Pediatric Eight-plate operates on the principle of tension band hemiepiphysiodesis. By placing the figure-8 shaped plate across the physis (growth plate) on the convex side of the deformity, the implant acts as a non-rigid tether. As the patient grows, the plate retards growth on the instrumented side while allowing the opposite side to grow normally. This differential growth gradually corrects the limb alignment over time.

Unlike rigid staples that can compress the physis and potentially cause permanent closure, our eight-plate system is designed to allow the screws to diverge within the plate holes. This “hinge” effect preserves the health of the growth plate and reduces the risk of implant failure or screw breakage.

Key Features and Clinical Advantages

The 4.5mm system is designed to withstand the increased physiological loads found in the distal femur and proximal tibia of older children. Key features include:

• Robust Design: The 4.5mm configuration provides increased fatigue strength compared to the standard 3.5mm plates, making it ideal for adolescents or patients with a higher Body Mass Index (BMI).
• Anatomical Contouring: The plate features a low-profile, contoured design that minimizes soft tissue irritation and prominence, which is crucial for patient comfort and postoperative recovery.
• Screw Divergence: The specialized hole geometry allows for significant screw divergence (up to 30 degrees), accommodating the natural angular changes that occur during the correction process.
• Minimally Invasive: The implantation requires a small incision and minimal submuscular dissection, leading to less pain, reduced scarring, and faster return to daily activities compared to corrective osteotomies.

Indications for Use

The 4.5mm Pediatric Eight-plate is indicated for the gradual correction of pediatric deformities in patients with open growth plates, including:

• Idiopathic Genu Valgum (Knock-knees)
• Idiopathic Genu Varum (Bowlegs)
• Leg Length Discrepancy (LLD)
• Deformities associated with skeletal dysplasias or metabolic disorders.
• Fixed flexion deformities.

Material and Quality Standards

Quality and safety are the cornerstones of OrthoPro’s manufacturing process. This implant system is fabricated from medical-grade Titanium Alloy (Ti-6Al-4V). Titanium is selected for its superior biocompatibility, corrosion resistance, and MRI compatibility. Furthermore, its modulus of elasticity is closer to that of bone, reducing stress shielding.

Technical Specifications

Our 4.5mm Pediatric Eight-plate system is compatible with standard large fragment instrument sets. Below are the detailed technical parameters:

Partner with OrthoPro for Your Orthopedic Supply Needs

As a dedicated B2B supplier, OrthoPro is committed to supporting hospitals, distributors, and medical procurement teams globally. We understand the critical nature of pediatric orthopedics and ensure that our inventory is stocked with high-quality, reliable implants ready for immediate shipment. Our products undergo rigorous quality control to meet international standards (ISO/CE).

We offer flexible wholesale pricing models and dedicated account management for our international partners. Enhance your surgical inventory with our advanced guided growth solutions today.