Osteosynthesis plate for treatment of fractures or osteotomies in the vicinity of joints
An osteosynthesis plate according to the invention has at least two legs, which are spaced apart and interconnected by at least one bridge element. The legs each have a certain length and extend in the longitudinal direction from an epiphyseal to a diaphyseal end of the osteosynthesis plate. Moreover, each leg has at least one opening for holding an anchoring element. The size and shape of the bridge element and the legs are configured such that the legs may be applied on both sides of a bone in the region of a joint, preferably on the olecranon.
1. A method for treatment of a fractured ulna bone or an osteotomy of a bone in the vicinity of an olecranon of the ulna, wherein the method comprises the following steps:
a. providing an osteosynthesis plate comprising at least two legs, which are spaced apart by a distance of a minimum of 10 mm and interconnected by two bridge elements that cross in a crossing region, wherein the legs each have a certain length and extend in a longitudinal direction from an epiphyseal to a diaphyseal end of the plate and each comprise at least one opening for holding anchoring elements, wherein a size and shape of the legs and the bridge elements are configured such that the bridge elements in their entirety are applied to a curvature of the bone by bending, in a vicinity of the olecranon such that the legs are applied over their entire length laterally on both sides of the ulna without a portion of the at least two legs covering a dorsal edge, wherein the distance between the epiphyseal end of the plate and the crossing region is at least 60% of the length of the legs or at least 60% of the length of a shorter leg such that the plate can be pushed over a fracture from one side, either from an epiphyseal or a diaphyseal side, without pushing the bridge elements over a region in which tendons or ligaments radiate into the bone, wherein the at least two legs and the bridge elements are configured such that a region where at least one of tendons or ligaments radiate into the bone is not covered by the osteosynthesis plate,
b. fitting the bridge elements in their entirety to a curvature of the bone by bending,
c. fitting both sides of the legs over their entire length on both sides of the ulna by bending,
d. attaching the osteosynthesis plate using bone screws.