A three-dimensional biomechanical analysis of elbow joint function is presented. Eating, dressing, pulling a heavy object and assisted standing from the seated position were investigated for healthy males in the age group 21 -25 years. Three cine cameras recorded the motion of specially designed markers taped to the upper limb and the forces transmitted between the hand and the environment were measured using a versatile force transducer. Muscle activity was recorded efectromyographically. A simplified model of the anatomical structures of the elbow joint was formulated and four computer programs were developed for the subsequent calculation of muscle, ligament and joint forces. Calculations showed that during the eating and dressing activities, compressive loads of 300 N were acting on the trochlear notch and in the other activities, the joint forces maximum values were 2000 N. Using several of the results from the theoretical analysis, a set of design criteria was established in connection with the development of a new elbow prosthesis. A detailed study of the geometry of the articular suifaces of the elbow was undertaken and a large series of X-rays was measured in order to determine the geometrical configuration of the distal humerus and the proximal ulna. Chapter 9 contains a full report on the design study and some of the more important aspects of the prototype prosthesis are discussed.
| Identifer | oai:union.ndltd.org:bl.uk/oai:ethos.bl.uk:467131 |
| Date | January 1977 |
| Creators | Nicol, A. C. |
| Publisher | University of Strathclyde |
| Source Sets | Ethos UK |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Source | http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=21716 |
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