Ch01_Musculoskeoletal_Sysitem

Ch01_Musculoskeoleta - ORTHOPAEDIC BIOMECHANICS Ralph Müller Kathryn Stok Harry van Lenthe Kathryn Stok Course text book Orthopaedic Biomechanics

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Unformatted text preview: ORTHOPAEDIC BIOMECHANICS Ralph Müller Kathryn Stok Harry van Lenthe Kathryn Stok Course text book: Orthopaedic Biomechanics: Mechanics and Design in Musculoskeletal Systems Bartel, D.L., Davy, D.T. and Keaveny, T.M. Date Topic Responsible 16 Feb The Musculoskeletal System – Ch. 1 R. Müller 23 Feb Loads and Motion in the Musculoskeletal System – Ch. 2 K. Stok 02 Mar Tissue Mechanics II: Soft Tissue – Ch. 4 K. Stok 09 Mar Tissue Mechanics II: Soft Tissue – Ch. 4 continued K. Stok 16 Mar Tissue Mechanics I: Bone – Ch. 3 R. Müller CURRICULUM 23 Mar Tissue Mechanics I: Bone – Ch. 3 continued R. Müller 30 Mar Structural Analysis: Beam Theory – Ch. 5 K. Stok 06 Apr Structural Analysis: Advanced Topics – Ch. 6 H. van Lenthe 13 Apr Easter Monday – no class 20 Apr Sechseläuten – no class 27 Apr Bone-Implant Systems – Ch. 7 R. Müller 04 May Fracture Fixation Devices – Ch. 8 H. van Lenthe 11 May Total Hip Replacements – Industry Visit (Ch. 9) B. Gasser 18 May Total Knee Replacements – Ch. 10 R. Müller 25 May Articulating Surfaces – Ch. 11 K. Stok ORTHOPAEDIC BIOMECHANICS • Course online: http://www.biomech.ethz.ch/obm/ – PDF and PPT files are password protected using your n.ethz account • Course requirements: – 10 out of 13 classes – 8 out of 10 exercises The Musculoskeletal System Introduction • Goal: Apply principles of engineering mechanics to analyze the mechanical and structural functions of the musculoskeletal system Skeletal system as a machin • Skeletal system as a machine – Combination of rigid or resistant bodies – With definite motions – Capable of performing useful work Introduction • In most machines we can define the kinematics without regard for the external loads acting on it and the internal forces transmitted from link to link • In biological joints, the kinematic constraints at joints are provided by elastic structures (less stiff). Loads across the joint and motions of the joint are coupled • Precise measures of stress and motion are difficult but often unnecessary • We need models that describe the fundamental behavior of the system • The choice of model is critical and is the subject of the subsequent lectures Anatomical Overview Anatomical Terms: • Proximal • Distal • Inferior • Superior • Lateral • Medial • Anterior • Posterior • Dorsal • Ventral Anatomic Position • The individual is standing with head and palm facing forward • Define three orthogonal anatomical planes – Frontal (coronal) plane divides the body front- back – Sagittal plane divides the body left-right – Transverse plane divides the body top-bottom Motions in Anatomical Planes • Flexion: movement where the anterior angle between two bones is reduced • Extension: opposite of flexion • Abduction: movement away from the midline of the body Adduction movement toward the midlin • Adduction: movement toward the midline • Hyperextension: continuation of motion beyond the anatomic position • Lateral flexion: movement of the spine to the right or left, in the frontal plane Motions in Anatomical Planes...
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This note was uploaded on 09/05/2011 for the course MECH 123 taught by Professor Johnsmith during the Spring '11 term at Auburn University.

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Ch01_Musculoskeoleta - ORTHOPAEDIC BIOMECHANICS Ralph Müller Kathryn Stok Harry van Lenthe Kathryn Stok Course text book Orthopaedic Biomechanics

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