FAQ: What Is Compression In Orthopedics?

How does a compression plate work?

The screw head slides down the inclined cylinder as it is tightened, the head forcing the plate to move along the bone, thereby compressing the fracture.

What is dynamic compression orthopedics?

A dynamic compression plate (DCP) is a metallic plate used in orthopedics for internal fixation of bone, typically after fractures. As the name implies, it is designed to exert dynamic pressure between the bone fragments to be transfixed.

What is Interfragmentary compression?

Interfragmentary compression in oblique fractures is achieved by a lag screw, inserted either separate from the plate, or through a plate hole (as illustrated). If available, a partially threaded cortical lag screw (shaft screw) can be used to accomplish interfragmentary compression.

What is plating in Ortho?

Function. Bridge plating techniques are used for multifragmentary long bone fractures where intramedullary nailing or conventional plate fixation is not suitable. The plate provides relative stability by fixation of the two main fragments, achieving correct length, alignment, and rotation.

What is locking compression plate?

The locking compression plate is a contemporary implant that allows for both conventional screw placement (using nonlocking screws) and locking screw placement (where screw heads lock into the plate at a predetermined angle). This allows for greater versatility in the application of internal fixation.

How do you compress plates?

Plate design Compression is obtained by tightening screws down a ramped hole design. This is the spherical gliding principle. The compression holes are drilled eccentrically to allow for compression. Typically, the holes on either side of the fractures are designated for compression screw placement.

What is LC DCP plate?

LC – DCP Plate 3.5. These plates are indicated for fixation of fractures and nonunions of the Clavicle, Scapula, Olecranon, Humerus, Radius, Ulna, Pelvis, Distal tibia, and Fibula. The oval-shaped hole is designed to create dynamic pressure between the fractured bone fragments.

What is LCP plate?

The Synthes Locking Compression Plate ( LCP ) is part of a stainless steel and titanium plate and screw system that merges locking screw technology with conventional plating techniques. plating with conventional cortex or cancellous bone screws.

What is a dynamic condylar screw?

The Dynamic Condylar Screw is designed to provide strong and stable internal fixation of certain distal femoral and subtrochanteric fractures, with minimal soft tissue irritation.

Is internal fixation permanent?

In many cases, they are used in conjunction with other forms of internal fixation, but they can be used alone to treat fractures of small bones, such as those found in the hand or foot. Wires are usually removed after a certain amount of time, but may be left in permanently for some fractures.

What is a lag screw in orthopedics?

A lag screw is used to compress fracture fragments. It is threaded into the opposite cortex, and slides through a hole in the near cortex. Tightening the screw presses the screw head against the near cortex, compressing the fracture fragments. Optimally, a lag screw should be perpendicular to the fracture plane.

What is Interfragmentary?

Abstract. Interfragmentary movement (IFM) at the fracture site plays an important role in fracture healing, particularly during its early stage, via influencing the mechanical microenvironment of mesenchymal stem cells within the fracture callus.

What are the principles of plating?

The 5 basic elements of plating

• Create a framework. Start with drawings and sketches to visualise the plate.
• Keep it simple. Select one ingredient to focus on and use space to simplify the presentation.
• Balance the dish.
• Get the right portion size.
• Highlight the key ingredient.

What metal is used for bone plates?

Pure Titanium metal is also one of the most widely chosen materials for the bone – plates, because of its excellent biocompatibility and corrosion resistance. The ductility of titanium is less compared to SS, because of its hexagonal crystal structure.

What is the clock plating style?

The clock method of culinary plating requires chefs to think of a plate like the face of a clock. Each section corresponds to a number on the clock to create different sections for placing food. Similarly, a triangular plate should be divided into thirds when considering the placement of food.