classification of fractures 2 Flashcards
Expected healing time is appropriate but unsatisfactory alignment of bone results in external deformity and dysfunction
Malunion
Failure of a fracture to heal in the expected time
The bone usually heals eventually; it may just be
slower
Delayed Union
Occurs when a fracture never heals
Nonunion
Treatment Nonunion
Osteogenic method: implantation of bone grafts
Osteoconductive methods: synthetic materials to provide a matrix for bone growth
Osteoinduction: substances such as platelet-derived growth factor
Electric stimulation
Internal or external; up to 10 hours a day for 3-6 months
Time consuming but can prevent further surgery and bone grafts
Weight-bearing joints are most vulnerable to posttraumatic arthritis
Excessive stress and strain on the joint or fracture must be avoided to reduce the risk of this complication
Can be a result of nonunion of a fracture
Post-Traumatic Arthritis
A variety of factors can interfere with blood supply after a
bone injury
Once bone cells are deprived of oxygen and nutrients,
they die (necrosis) and their cell walls collapse
Avascular Necrosis
Signs and symptom
Avascular Necrosis
Pain, instability, and decreased function in the
affected area
Treatment
Avascular Necrosis
Relief of weight bearing and removal of part of the bone to decrease pressure
If conservative measures fail, surgical procedures may be recommended
Sometimes amputation is necessary
Precipitated by a fracture or other trauma
Complex Regional Pain Syndrome Type 1 (CRPS—Type 1)
Symptoms
Complex Regional Pain Syndrome Type 1 (CRPS—Type 1)
Severe pain at the injury site despite no detectable nerve damage (Type 2 has detectable nerve damage), edema, muscle spasm, stiffness, vasospasms, increased sweating, atrophy, contractions, and loss of bone mass
Symptoms persist longer than expected with the type of injury suffered
Treatment
Complex Regional Pain Syndrome Type 1 (CRPS—Type 1)
Nerve blocks, physical therapy, transcutaneous electrical stimulation, and analgesics, muscle relaxants, and antidepressants
Signs and Symptoms of a Fracture
Depend on type and location of the break
Some fractures have so few manifestations that they can be detected only with x-ray
Signs and symptoms are swelling, bruising, pain, tenderness, loss of normal function, abnormal position, and decreased mobility
Signs and symptoms of a fracture on pg 1076
pain, loss of function, deformity, false motion (untatural motion), creptus( grating sound of bone ends moving over each other) edema, spasm
Detect small bone fractures or fractures caused by stress or disease
Bone scan
Detect fractures of complex structures, such as the hip and pelvis, or compression fractures of the spine
Computed tomography (CT)