Swemac CHS
Compression Hip Screw System
Introduction
The SWEMAC Hip Plates has a smoothly curved outer profile and still maintains an extra ordinary mechanical strength. They are available with plate/barrel angles 130°, 135°, 140°, 145° and 150°. The plate is also available in 95° angle for supracondylar fractures.
Indications
This system provides a simple and easy-to-use solution for all surgeons facing hip fractures. Offering a wide choice of hip plates combined with a unique lag screw, and innovative instrumentation. Each implant is individually sterile packaged for immediate use and greater inventory control.
Key Features and Benefits
The plates are available with 2 to 16 holes.
The most proximal hole in the hip plate will allow the use of a 6.5 mm selftapping cancellous bone screw.
An adequate grip in the femoral head is crucial for successful fixation of hip fractures. The SWEMAC Lag Screw has been designed to overcome the reduction in strength in the cancellous bone caused by osteoporosis.
Strength of fixation is dependent upon both implant and bone properties. If too much bone trabeculae is removed, the interaction between bone and implant may be destroyed. To achieve a good fixation, it is vital to save sufficient bone trabeculae in the femoral head. The special design of the triple reamer and the SWEMAC Lag Screw minimize the disruption of the bone trabeculae.
Four unique features improving the holding power in the femoral head:
• First, it has a conical core. This allows an increase of the total area of the thread and thereby improving the holding power in the cancellous bone.
• Second, it has gradually decreasing distance between the threads, starting from the tip. This will compress the bone and prevent rotation forward.
• Third, the threaded part has the same outer diameter over the whole length, improving the holding power even further.
• Fourth, the SWEMAC Lag Screw has a blunt tip in order to minimize the risk of femoral head penetration.
PDF Document: Download
