Orthopedic surgery pin

orthopedicstainless steelwire

A non-sliding device for Tension Absorbing Wire (TAW) technique FEATURES The stainless Steel (W14310 - AISI 302) pin is a high polished 1,6 mm diamond shaped implant, which is available in 4 sizes, 60,80,100 and 120 mm of length. The head of the pin is 2,5 mm thick, and the anchoring hole is 1,2 mm to facilitate a 1 mm cerglage wire. The proximal part of the Larsen Pin is prepared for cutting,and fits in conventional as well as mini drivers. This part of the pin is 2 mm thick. No spécial device or tool is required for the insertion, and a normal wire cutter will suffice for cutting off the pin. GENERAL OPERATIVE TECHNIQUES When using tension absorbing wire techniques in connection with this non-sliding pin, the riskofskin problems, sliding off the cerclage wire, pin migration and fragmentation of small bone fragments will be excluded. TECHNIQUE The Larsen Pin is designed for the treatment of transverse or oblique fracures of the olecranon and the patella, but is also well suited in ail cases where the tension absorbing wire techniques is désirable. INDICATIONS The operation technique when using the Larsen Pin is very simple, and in many ways similar to the routine used with conventional Kischner wires. The fracture and joint is exposed through a postero-lateral approach. The fracture is reduced, and the two Larsen Pins are drilled in parallel to the axis of the diaphyseal part of the ulna. The holes of the pins should at this stage be left 0,5 -1 cm apart from the aligcranon bone. The pins are then positioned with the holes aligned to facilitate the insertion of the cerclage wire.