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Skeletal System. Characteristics and Treatment of Common Skeletal Disorders. Trauma. Fractures Dislocations Sprains Strains. Fractures (aka break) pg 108. Most common traumatic injury to a bone When this occurs, there is swelling d/t injury and bleeding tissues
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Skeletal System Characteristics and Treatment of Common Skeletal Disorders
Trauma • Fractures • Dislocations • Sprains • Strains
Fractures (aka break) pg 108 • Most common traumatic injury to a bone • When this occurs, there is swelling d/t injury and bleeding tissues • The common types of fractures are: • Greenstick • Closed/simple • Open/compound • Comminuted
Greenstick • The simplest type of fracture • Bone is partially bent, but never completely separates • Break is similar to that of a young, sap-filled woodstick, where the fibers separate lengthwise when bent • Common among children b/c their bones contain flexible cartilage
Closed/Simple • When the bone is broken, but the broken ends do not pierce through the skin
Open/Compound • Most serious type of fracture • The broken bone ends pierce and protrude through the skin • Can cause infection of the bone and neighboring tissued
Comminuted • When the bone is splintered or broken into many pieces that can become embedded in the surrounding tissue
Restoring bone • Occurs through 3 main methods • Closed reduction = cast or splint • Bony fragments are brought into alignment by manipulation and a cast or splint is applied • Open reduction = internal fixation • Through surgical intervention, devices such as wires, metal plates, or screws are used to hold the bone in alignment and a cast or splint may be applied • Traction • Pulling force used to hold the bones in place, used for fractures of long bones
Dislocations • Occurs when a bone is displaced from its proper position in a joint • May result in the tearing and stretching of the ligaments • Reduction or return of the bone to its proper position is necessary, along with rest to allow the ligaments to heal
Sprain • An injury to a joint caused by any sudden or unusual motion, such a “turning the ankle” • The ligaments are either torn from their attachments to the bones or torn across, but the joint is not dislocated • Accompanied by rapid swelling and acute pain in the area and is treated with nonsteroidal anti-inflammatory drugs
Strain • Overstretching or tearing of muscle
Concussion • Result of a severe blow to the head • May be mild or severe and temporarily affect memory, judgment, speech, balance, and coordination
Hammer Toe • Toe that’s curled (flexed) d/t a bend in the middle joint of one or more toes • May be caused by shoes that are too tight or heels to high • The longest of the 4 smaller toes may be forced against the front of the shoe, resulting in unnatural bending of the toes with pain and pressure in the affected area
Diseases of the Bones: Arthritis • Inflammatory condition of one or more joints, accompanied by pain and often by changes in bone position • At least 20 different types, the most common being rheumatiod arthritis and osteoarthritis
Rheumatioid Arthritis (RA) • Chronic, auto-immune disease which affects the connective tissue and joints • There is acute inflammation of the connective tissue, thickening of the synovial membrane, and ankylosis (joints become fused) of the joints • Joints are badly swollen and painful • Cause is unknown
Osteoarthritis • Known as degenerative joint disease • Occurs with aging; about 80% of all Americans affected • Articular cartilage degenerates and a bony spur formation occurs at the joint • Joints may enlarge; there is pain and swelling, especially after activity
Other diseases • Gout • Joint disorder characterized by an acute inflammation commonly affecting the big toes; accumulation of uric acid crystals • Rickets • Found in children and caused by a lack of Vit D; bones become soft d/t lack of calcifiation causing bone deformities • Slipped (herniated) disc: • Condition where a cartilage disc ruptures or protrudes out of place and places pressure on the spinal nerve • Whiplash injury: • Trauma to the cervical vertebra, usually the result of a MVA (what does MVA stand for?)
Abnormal Curvatures of the Spine • Kyphosis • Hunchback • Humped curvature in the thoracic area • Lordosis • Swayback • Exaggerated inward curvature in the lumbar region, just above the sacrum • Scoliosis • Side-to-side or lateral curvature of the spine *page 112, figure 6-17*
Other Disorders • Osteoporosis – “silent disease” • Porous bone disease characterized by low bone mass and structural deterioration of bone tissue • Has no symptoms until a sudden strain, bump, or fall causes a fracture or a vertebrae to collapse • Collapsed vertebrae may be seen in the form of loss of height, severe back pain, or spinal deformities • See figure 6-19 page 114
Osteomyelitis • Infection which may involve all parts of the bone • May result from injury or systemic infection and most commonly occurs in children ages 5-14 • Osteosarcoma • Bone cancer • Most common sight is just above the knee
One more term to know: • Arthroscopy • Examination of a joint using an athroscope with fiber optic lens, most knee injuries are treated with arthroscopy