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TYPES OF DISPLACEMENT IN FRACTURES OF THE FEMORAL NECK

Per Linton 1

1 The Service of the Central Hospital, Gävle, Gäval, Sweden

1. Various types of fracture of the femoral neck represent different stages of one and the same displacing movement.

2. The displacement first produces an "abduction fracture" and terminates in an "adduction fracture," passing through the stage of an " intermediary fracture" which is less well recognised.

3. These three types of fracture occur in response to the same injury and they differ only in the degree of displacement.

4. It is a mistake to believe that in " adduction fractures" the femoral head lies medially to the collum : it lies posteriorly.

5. "Impaction" is no more than the first stage of displacement of fractures in which there is limited displacement, with contact still maintained between the fragments.

6. An "impacted fracture" is not necessarily stable—if there is additional strain it may progress to the next stage of a displaced and unstable fracture.

7. These principles apply not only to fractures of the femoral neck but to all other fractures at the ends of long bones.
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Hip, Knee, Trauma, Upper limb, Foot & Ankle, Paediatrics, Oncology, Spine, Arthroplasty, General