Sistema de Placas Anatómicas del Antebrazo

• Primero y solo sistema de placas preformadas para el antebrazo

• Gran mercado – Entre 6-15% de fracturas de adultos ocurren en la parte diafisaria del antebrazo, y la mayoría de estos fracturas son fijadas por cirugía.

Características

• Preformadas• Perfil bajo• Contacto limitado• Extremos afilados

• Dos opciones para llegar al radio– Volar (Henry)– Dorsolateral (Thompson)

• Agujeros para los K-wires

Importancia de una Placa Anatómica

– El radio no es un hueso derecho– Hay una curva que ayuda en rotación– Por que poner una placa derecho en un hueso curvo?

Synthes 3.5mm LCP plate on cadaver radius

El radio y la rotación

“Cada 5 grados de curva perdido en el radio resulta en 15 grados perdido en pronación/supinacion.”

Stannard, et. al. Surgical Treatment of Orthopaedic Trauma. 2007. pg. 361.

• Formar una placa resulta en flaquearla.• No es necesario formar las nuestras ya que están

preformadas.

Low-Profile Design

• Minimized soft tissue irritation– Decreased removal rate

• High re-fracture rate occurs when you have to remove the previous plate

– Plate itself is low-profile– Screws sit flush or below the plate’s surface

• Limited Contact design– Reduces constriction of the blood supply to

the periosteum so blood can reach fracture site quicker than a flat plate

Low-Profile Design

• Tapered plate ends– Reduces risk of bone re-fracture above or below the

plate due to excess stress concentrations• May add a little flexibility

– Flexibility enables Wolf’s Law to stimulate bone to heal and callus formation

– The plate is bearing the load, not the bone

Thick in the middle for strength.

“Approach-Specific” Plates

• Provides plate options for surgeon’s preferred surgical approach to the radius

• A complete diaphyseal forearm fracture solution!

– Ulna Plates (silver)– Volar radius plates (gold)– Dorsolateral plates (light blue)

Dorsolateralradius

Volarradius

Ulna

Innovative Instrumentation

• Customized instrumentation for a straightforward procedure:

– Tissue Spreader– Plate Clamp– Angled Drill Guide

• Tissue Spreader • Plate Clamp

Innovative Instrumentation

Case 1: Pre-op

Case 1: Intra-op

Case 1: Post-op

Case 2: Pre-op

Case 2: Intra-op

Ulna Plate used because patient had an unusually straight radius.

Case 2: Post-op

White Papers

•ROM

•Grip & Pinch Strength

•Malunion

White Papers

“This study has shown a significant sagittal bow of the proximal shaft of the radius. Plating thiswith contoured plates in the sagittalplane improves rotation when compared with straight plates.”

Gracias por su atencion!