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Fig. 2 | BMC Musculoskeletal Disorders

Fig. 2

From: Changes in femoral rollback and rotation with increasing coupling in knee arthroplasty—a biomechanical in-vitro study

Fig. 2

Different degrees of coupling of the Gemini and Endo-Modell SL series (Waldemar Link GmbH, Hamburg, Germany) (with the kind permission of Waldemar Link GmbH). A Uncoupled prostheses without (left image) and with (right image) posterior stabilized modification (marked in red). B Coupled prostheses with rotational hinge (left) and total hinge (right) and their coupling mechanisms. In the rotational hinge model, the collar (marked in red) is rotationally mobile whereas in the total hinge model the collar is fixed with two screws to impede rotational movement

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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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