Hansson Twin Hook
Introduction
The Hansson Twin Hook is a new concept for the treatment of trochanteric hip fractures. Its development is based on the long and successful experience with the Hansson Pin System®. The Hansson Twin Hook offers a STRONG, STABLE FIXATION with MINIMAL SURGICAL TRAUMA.
Indications
The Hansson Twin Hook consists of two parts, an inner sliding tongue and an outer pin. The outer pin is 8.9 mm in diameter. Fixation in the femoral head is achieved by pushing the inner sliding tongue out through the proximal windows. The hooks are 4.6 mm in width and extend outward in a gentle curve 11 mm on each side of the outer pin.
The Hansson Twin Hook is used in combination with the Swemac Hip Plate or the Medoff Sliding Plate®.
Key Features and Benefits
Loading and deformation tests using cadaver femoral heads have shown that the Hansson Twin Hook behaves differently, compared to the Compression Hip Screw. In case of impaired sliding between the Twin Hook and the plate/barrel, the compressive forces are transmitted to the fixation of the Hansson Twin Hook in the femoral head rather than to the fracture.
If the compression screw moves, the bone is stripped. With the Hansson Twin Hook, instead of stripping the bone, the hooks will gradually bend, making this a more forgiving and durable fixation.
The Hansson Twin Hook gives 2-3 times better rotational resistance in cadaver femoral heads than a compression hip screw. Rotational stability of the Hansson Twin Hook in the plate barrel is ensured through bilateral flattening of the shaft to match the inside of the hip plate barrel.
Two hooks are positioned anterior and posterior with a total hook span of 31 mm. The hooks will be in contact with both cancellous and subchondral bone in the femoral head, providing a very good support against displacement.
Introduction
The Hansson Twin Hook is a new concept for the treatment of trochanteric hip fractures. Its development is based on the long and successful experience with the Hansson Pin System®. The Hansson Twin Hook offers a STRONG, STABLE FIXATION with MINIMAL SURGICAL TRAUMA.
Indications
The Hansson Twin Hook consists of two parts, an inner sliding tongue and an outer pin. The outer pin is 8.9 mm in diameter. Fixation in the femoral head is achieved by pushing the inner sliding tongue out through the proximal windows. The hooks are 4.6 mm in width and extend outward in a gentle curve 11 mm on each side of the outer pin.
The Hansson Twin Hook is used in combination with the Swemac Hip Plate or the Medoff Sliding Plate®.
Key Features and Benefits
Loading and deformation tests using cadaver femoral heads have shown that the Hansson Twin Hook behaves differently, compared to the Compression Hip Screw. In case of impaired sliding between the Twin Hook and the plate/barrel, the compressive forces are transmitted to the fixation of the Hansson Twin Hook in the femoral head rather than to the fracture.
If the compression screw moves, the bone is stripped. With the Hansson Twin Hook, instead of stripping the bone, the hooks will gradually bend, making this a more forgiving and durable fixation.
The Hansson Twin Hook gives 2-3 times better rotational resistance in cadaver femoral heads than a compression hip screw. Rotational stability of the Hansson Twin Hook in the plate barrel is ensured through bilateral flattening of the shaft to match the inside of the hip plate barrel.
Two hooks are positioned anterior and posterior with a total hook span of 31 mm. The hooks will be in contact with both cancellous and subchondral bone in the femoral head, providing a very good support against displacement.
