Assessment of Musculoskeletal Function Flashcards
Bone Cells
- Function in bone
formation
Osteoblasts
Bone Cells
- Mature bone cells
that function in
bone maintenance - Located in the
lacunae
Osteocytes
*
process by which the bone matrix is formed and hard mineral crystals composed of calcium and phosphorus
*
give bone its strength
Ossification
Bone Cells
- Multinuclear cells
function in
destroying,
resorbing, and
remodeling bone - Located in Howship
lacunae
Osteoclasts
: the contractile unit of skeletal muscle that contains actin and myosin
Sarcomere
*
detect metastatic and primary bone tumors, osteomyelitis, fractures, and aseptic necrosis.
*
radioisotope is injected IV.
*
Scan is performed 2 to 3 hours after the injection
Bone Scan
*
Muscle tone
*
Flaccid (w/o tone)
*
Spastic (>normal)
*
Atonic (denervated)
*
Muscle tone
*
Flaccid (w/o tone)
*
Spastic (>normal)
*
Atonic (denervated)
*
*
Provides information about the electrical potential of the muscles and nerves
*
Evaluate muscle weakness, pain, and disability
*
Needle electrodes are inserted into muscles, and responses are recorded on an oscilloscope.
Electromyography (EMG)
*
acute or chronic tears of the joint capsule or ligaments
*
contrast agent or air is injected into the joint cavity while a series of x-rays is obtained.
*
After an arthrogram, a compression elastic bandage is applied
*
joint is rested for 12 hours.
*
clicking or crackling in the joint for 1-2 days post-procedure is normal, until the contrast agent or air is absorbed.
Arthrography
*
Joint aspiration to obtain synovial fluid
*
Used in diagnosis of septic arthritis and andreveals hemarthrosis (bleeding into the joint cavity)
Arthrocentesis
*
*
Determine the structure and composition of bone marrow, bone, muscle, or synovium
*
Analgesic agents is provided.
*
Monitor the site for edema, bleeding, pain, and infection.
*
Ice is applied to control bleeding and edema.
Biopsy
