WK 8: Musculoskeletal Disorders Flashcards
What is osteoporosis?
A type of metabolic bone disease characterised by abnormal bone structure
Identify the 3 characteristics of osteoporosis
- Decreased bone density
- Loss structural integrity of trabecular (spongy bone)
- Cortical (compact) bone weakens thins and becomes porous
Identify the cause osteoporosis
Altered metabolism
Identify 3 risk factors of osteoporosis
- Genetics (predisposed to decreased bone mass)
- Ageing (65 years due to endocrine disorders inhibit bone loss)
- Exercise (need stress for bone maintenance)
Identify the 2 types of osteoporosis
Generalised
Regional
Describe generalised osteoporosis
Involves major portions of the axial skeleton
Describe regional osteoporosis
Involves 1 segment of appendicular skeleton
Identify 2 of the associated diseases with osteoporosis
Inflammatory bowel disease
Diabetes mellitus
Identify 2 complications with osteoporosis
Disability
Pathological fractures
Identify the main form of prevention in osteoporosis
Lifestyle modification e..g balanced diet, regular weight baring exercise
Describe the pathophysiology of osteoporosis
Rate of resorption > Rate of bone formation = Bone loss and bone becomes weak, brittle, fragile, porous
Identify 2 common and 2 rare clinical manifestations associated with osteoporosis
Common: Pain, fractures, diminished height
Rare: Pneumonia, fat embolism
Identify 2 investigations in the diagnosis of osteoporosis
Dual energy X-Ray absorpiometry (DEXA scan)
Bone mineral density testing
Identify the 2 aims of treatment in osteoporosis
Slow the rate of calcium and bone loss
Prevent deterioration
Identify 2 nursing considerations associated with osteoporosis
Education about condition/treatment
Management of pain = increased quality of life
Describe the effects of back pain
Can be emotional, social and economical, leading cause of absence from activity limitation and work
Identity the 4 classifications of back pain
Upper
Lower
Acute
Chronic
Describe upper back pain and identify a cause
Pain/discomfort felt from neck base to thoracic region
Herniation of intervertebral discs
Identify 2 risks of back pain
Obesity, stress
Describe lower back pain and identify a cause
Most common, has many nerve roots at high risk of injury, Osteoarthrirtis, DDD
Describe acute Back pain
<4 weeks, caused by trauma activity, onset 24hrs after cause as aches, spasm, shooting pain
Describe chronic back pain
Lasts >3months, repeated incapacitating event, progressive. DDD is leading cause of lower back pain
What is DDD?
Degenerative Disc Disease: Occurs as a result of normal ageing processes combined with deterioration and herniation of intervertebral discs
Describe the 3 purposes of intervertebral discs
Seperate the vertebrae of the spine
- provide shock absorption
- Allow ROM
- Protect the joints
Identify the cause of DDD
Structural degeneration
Identify 2 risk factors of DDD
Ageing
Family history
Modifiable risk factors
Excessive strain
Identify 2 complications of DDD
Chronic Pain
Incontinence
Describe the pathophysiology of DDD
Nucleus pulposus starts to dry out and shrink, pressure transferred to annulus fibrosis, nucleus pulpous seeps (herniates through annulus) , herniated discs press against the spinal nerves = CM
What is a herniated disc
Occurs when spinal intervertebral disc bulges out between the vertebrae
Identify the main clinical manifestation associated with DDD
Radioculpathy: Constant pressure on nerve endings = altered sensation and motor responses. Increases with prolonged sitting, bending twisting etc.
Identify the 4 types of back pain (clinical manifestations)
Localised: Pain on area palpation
Diffuse: Spread over large area
Radicular: Irritation of nerve root, herniated disc
Referred: Pain felt in one area, radiating to another area
Identify 2 goals of treatment in DDD
Increase quality of life
Improve mobility
Identify two forms of assessment in diagnosis of DDD
Straight leg raising test = Pt unable to perform = Positive DDD)
On edge of beg straightening leg to flex = Pain = DDD
Identify 2 forms of nursing management in DDD
Non pharmacological (Heat pack, ice pack, massage) Education
What is arthritis?
Inflammatory joint disease
Identify 3 risk factors of arthritis
Low SES
Modifiable RF e.g. obesity, smoking, poor diet
Age
Genetics
Identify the 2 types of arthritis
Infectious
Non infectious
Describe infectious arthritis
Invasion of the joint by bacteria, mycoplasma, fungi leading to inflammation e.g. septic arthritis
Describe non infectious arthritis
Inappropriate immune response (Rheumatoid) or deposition of crystals in synovial fluid (Gout)
What is osteoarthritis?
Chronic, slow progressive non inflammatory disorder of the synovial joint = cartilage destruction and joint degeneration
Identify the 6 classifications of osteoarthritis
Primary / secondary
Localised/Generalised
Early/moderate/advanced
Identify 2 causes of osteoarthritis
Usually by a known event/condition
Trauma
Mechanical stress
Identify 2 risk factors associated with osteoarthritis
Increasing age
Modifiable risk factors
Repetitive use
Describe the pathophysiology of osteoarthritis
Articular cartilage degradation, bone stiffening, reactive inflammation of synovial fluid leading to contact of exposed bony joint surfaces and thickening of joint capsule by constant friction between two bone surfaces
Identify 3 clinical manifestations with osteoarthritis
Pain (mild discomfort - severe disability)
Joint stiffness
Functional inpairment/joint deformity
Describe inflammatory arthritis
A group of disease that result in joint inflammation swelling, stiffness, decrease ROM
Identify 2 types of inflammatory arthritis
Rheumatoid arthritis
Psoratic arthritis
Describe Rheumatoid arthritis
Inflammation of connective tissue in synovial joints, periods of remission and exacerbation
Identify the cause of Rheumatoid arthritis
Likely link with genetics and environmental triggers interacting with inflammatory mediators
Identify 2 risks factors of Rheumatoid arthritis
Increasing age
Smoking
Obesity
stress
Describe the classification of Rheumatoid arthritis
Classifed according to number of joints involved, serology inflammatory markers and duration of symptoms
Describe the pathophysiology of Rheumatoid arthritis
Initial immune response to antigen triggers autoantibodies to develop (Rheumatoid factor). These cause an inflammatory response causing cartilage breakdown and thickening of synovial lining and membrane. This leads to tissue breakdown and erosion of a articular cartilage = immobilisation/joint stiffness
Identify 3 early clinical manifestations with Rheumatoid arthritis
Fever Fatigue Rash Weight loss Malaise (discomfort)
Identify the late clinical manifestations with Rheumatoid arthritis
Localised CM e.g. joint pain/tenderness/stiffness
Disability
Identify 2 complications associated with Rheumatoid arthritis
Osteoporosis
Infections
Carpel tunnel
What is Psoriatic Arthritis
Chronic, immune mediated inflammatory joint disorder . Part of a group of disorders called seronegative spondyloarthropathy, can be oglioarthritis
What is oglioarthritis
Chronic, inflammatory arthritis of unknown origin affecting <5 joints, with an onset that occurs <6yrs of age and lasts for 6 weeks
Describe Psoriasis
Chronic autoimmune disorder characterised by the rapid build up of skin cells that form patches of scaly, itchy dry skin
Identify the cause of Psoriatic Arthritis
Strong genetic link combined with immune and environmental factors
Identify 2 risk factors associated with Psoriatic Arthritis
Psoriasis
Age
Obesity
Identify the 5 types of Psoriatic Arthritis
Symmetric Asymmetric Distal Spondylitic Arthritis Mutilans
Describe symmetric Psoriatic Arthritis
Affects joints on both sides of the body at the same time
Describe asymmetric Psoriatic Arthritis
Affects one side of the body at a time
Describe distal Psoriatic Arthritis
Inflammation/stiffness to ends of toes and fingers including nails. Causes pitting and lifting from nail bed
Describe spondylitis Psoriatic Arthritis
Pain/stiffness of the spine and neck, affects men>women
Describe arthritis mutilans Psoriatic Arthritis
Most severe, deformities of small joints
Describe the pathophysiology of Psoriatic Arthritis
“Not understood”
Identify 3 clinical manifestations associated with Psoriatic Arthritis
Joint inflammation (stiffness/painful) Swollen fingers/toes Skin changes
Identify 3 complications of Psoriatic Arthritis
“Pencil in a cup”deformity of distal joints in fingers
Depression/anxiety
Chronic fatigue
Identify 2 associated comorbidities of Psoriatic Arthritis
Psoriasis
Depression
What is gout
Metabolic disorder characterised by an acute exacerbation with long period of remission. results in high levels of serum uric acid