Factors affecting bone healing - Answer: -Amount of local damage
-Proximity to bone ends
-Secondary problem (infection, foreign material)
-Blood supply to fracture site
-Systemic factors (age, nutrition, anemia, DM)
Complications of fracture - Answer: -Infections
-Ischemia
,-Compartment syndrome
-Fat emboli
Other complications of fracture - Answer: muscle spasm, nerve damage, failure to heal, deveopment of
deformity, osteoarthiritis
Compartment syndrome - Answer: Increased pressure or fluid -- compress nerve and block blood vessel
Symptoms of compartment syndrome - Answer: -Severe pain
-Ischemia
-Necrosis
Signs and symptoms of fracture - Answer: -Deformity-crepitus
-inflammation
-Pain
-Edema, swelling
Dislocation - Answer: Separation of two bones at a joint, with loss of contact between articulating
surfaces
Dislocation is usually accompanied by: - Answer: Significant damage to ligaments and tendons
Signs and symptoms of dislocation - Answer: -Bleeding and inflammation
-Severe pain
-Deformity
-Limited movement
Sprain - Answer: Tear in a ligament
, Strain - Answer: Tear in a tendon
Avulsion - Answer: The ligaments or tendons are completely separated from their tiny bone attachments
Signs and symptoms of sprain, strain, avulsion - Answer: -Pain
-Swelling
-Discoloration due to hematoma
-Strength and ROM limited
Osteoporosis - Answer: Decrease in bone mass and density
Primary osteoporosis - Answer: Idiopathic
Secondary osteoporosis - Answer: Complication of another disorder
Pathophysiology of osteoporosis - Answer: Bone resorption exceeds formation, results in loss of
compact bone
Signs and symptoms of osteoporosis - Answer: -Asymptomatic until fracture occurs
-Can cause compression fractures of vertebrae, wrist, or hip
-Can lead to kyphosis and scoliosis
Predisposing factors of osteoporosis - Answer: -Age 50+
-Decreased mobility/sedentary lifestyle
-Hormonal factors (excess PTH, deficit of E2 or testosterone)
-Deficits of calcium, vitamin D, or protein
-Cigarette smoking
-Lower BMI
-Asian or European ancestry
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