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Chapter 9

Chapter 9 . Articulations. Immovable VS Movable. Functional Classification. Synarthrosis - fibrous– immovable - suture Amphiarthrosis - cartilaginous – slightly movable -vertebra Diarthrosis - synovial – freely movable – shoulder, hip. Fibrous joints.

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Chapter 9

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  1. Chapter 9 Articulations

  2. Immovable VS Movable

  3. Functional Classification Synarthrosis - fibrous– immovable - suture Amphiarthrosis - cartilaginous – slightly movable -vertebra Diarthrosis - synovial – freely movable – shoulder, hip

  4. Fibrous joints Syndemosis – ligaments connect two bones – radioulnarinterosseous ligament – some movement due to ligamentous movement Sutures – skull only Gomphoses – tooth root and maxilla/mandibular junction – gotta chew!

  5. Cartilaginous joints Synchondroses – hyaline cartilage between bones – true rib and sternum Symphyses – pad/disk connecting bones – symphysis pubis and intervertebral disks

  6. Synovial joints Most moveable and numerous Uniaxial – hinge and piviot – flex/extension Pivot – C-2, radius Biaxial – movement in two perpendicular planes - saddle (thumb/opposition), condyloid/ellipsoidal (occipital to atlas) Multiaxial – three or more axis – ball and socket joints (hip/shoulder), gliding vertebrae (least moveable)

  7. Examples of synovial joints Humeroscapular - bursa (cushion sacs providing ease of movement), rotator cuff (muscles and tendons form protective pad) Hip – stability (shape of ball and socket) mobility (flexion, extension, abduction, adduction, circumduction) iliofemoral ligament strongest in body Knee – meniscus – cartilage (medial/lateral) creates socket for femur

  8. 5 ligaments holding knee stable Anterior cruciate Posterior cruciate Wrisberg Transverse Fibular/tibial collateral

  9. Knee questions What protects the knee? Is it harder or easier to injure in comparison to the hip? What range of motion movements can the knee perform? What does weight have to do with knee health? How long does a knee replacement usually help a patient?

  10. Vertebral joints Slight movement/flexible ROM – flex, extend, circumduct Intervertebral disks pad between vertebrae

  11. Types of movement Angular Circular Gliding Special

  12. Range of Motion Measures level of wellness Measures level of damage/injury Determines mode of treatment Measured by the use of a goniometer

  13. Angular movements • Changes size of angle between two bones • Includes: • Flexion • Extension • Abduction • Adduction • Abnormal - hyperextension

  14. Circular movements • Rotation on axis • Include: • Rotation • Circumduction • Supination • Pronation

  15. Gliding movements Simplest of all movements Surface of one bone moves over another without any angular or circular movement Example – carpals/tarsals/vertebrae

  16. Special movements Inversion Eversion Protraction Retraction Elevation depression

  17. Pathophysiology - noninflammatory: Osteoarthritis (degenerative joint disease) – elders from normal ADL’s – TMT – nonsteroidalantiinflammatory drugs (NSAID’s) Aspirin, advil, Celebrex, vioxx Trauma – dislocation (subluxation) Arthroscopy used to determine extent of injury Sprain Whiplash

  18. Pathophysiology - Inflammatory Arthritis - age vs traumatic injury Rheumatoid arthritis – chronic/systemic Juvenile RA – more severe than adult/more prevalent in female patients Gout – metabolic – deposits of uric acid – TMT - Allopurianol

  19. Complete case study pg 275 and CTQ pg 277

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