Conditions Of The Musculoskeletal System (Week 1) Flashcards
What is the primary cause of fatal and non-fatal injuries in older adults?
Falls
Biomechanics
Study of structure and function of biological systems
Ex: able to ID a person from across the room by their movement and stance.
What is a negative result of a fall?
Fear
Etiology of fractures related to pathology (4)
- Tumors
- Osteoporosis
- Osteopenia
- Osteoarthritis
Etiology of fractures related to trauma (3)
- High energy trauma- MVA
- Prolonged stress/overuse
- Direct blow - knee hits dashboard in MVA
Etiology of Orthopedic conditions (3)
- Trauma
- Pre-existing musculoskeletal limitations
- Genetics
Common bones that fracture
9
- Radius.
- Ulna
- Carpal bones.
- Clavicle
- Spine. 8. Femur
- Pelvis. 9. Tibia/Fibula
- Hip
Common radial fx
Colles fx - out reached arm to break fall
Proximal or mid-shaft
Common spinal fx
Compression fx - common in osteoporotic population
Common cause of pelvis fx
MVA
Common hip fx
Femoral neck
Trochanteric
Common femural fx
Mid-shaft
Distal
Common Tibial and fibular fx
Tibial plateau
Mid-shaft
Distal = ankle fx
Risk Factors for Fx (2)
Low bone mineral density
Hx of Fx
Signs of Fx (5)
- Swelling
- Bruising
- Deformity
- Tenderness with palpation
- Loss of function
Signs of loss of function with a fx (2)
inability to bear weight
inability to move joint
Symptoms of a Fx (3)
- Severe pain
- Stiffness
- Numbness/Tingling
Risk factors of a fx (2)
- Low bone mineral density
2. Hx of Fx
Two reasons why Hx of Fx is a risk factor (2)
- Fear of falling increases risk of falling
2. Pathological Fx due to osteoporosis
Progression of Fx (3)
- Inflammatory
- Repair
- Remodeling
What happens during the inflammatory response of a Fx?
Blood moves into the space around the fracture creating a hematoma. The hematoma transforms into a clot.
Risk Factors of falls (6)
- decreased strength
- decreased balance
- comorbidities
- medications
- Footwear
- Chronic pain
What are the two phases of the repair process? (2)
- Fibrocartilaginous “soft” callus phase
2. Bony “hard” callous phase
What happens during the fibrocartilaginous callus phase? (2)
- Osteoblasts initiate formation of the bone.
2. Cell density increases
What happens during the bony “hard” callus phase?
Fibrocartilaginous callus converts woven bone which increases in rigidity and thickness until bony union
What happens during the remodeling phase of a Fx? (2)
- Woven bone convert to lamellar bone.
2. Fracture callus reduces along lines of stress.
Medical intervention & management of a Fx (2)
- Fx reduction
2. Immobilization
Approx. time of immobilization of Fx
~6 weeks
What can immobilization cause? (6)
- Stiffness
- Decreased ROM
- Capsular contracture
- Muscle contracture
- Muscle atrophy
- Decreased strength of Connective tissue
What are the effects of muscle atrophy? (3)
- Decreased force generation
- 20% loss of strength in only 2 weeks
- Alternated neuromuscular recruitment /coordination
What is the ligament /tendon failure point?
The normal stretch of a tendon to snap is lower; increases possibility of snapping.
Prognosis of a Fx (2)
- Post-traumatic arthritis
2. Women with wrist fx - 50% more likely to have clinically significant functional decline than those without
Three types of Fx reduction(3)
- Closed reduction
- Open reduction internal fixation
- External fixation
Medical intervention and managment of an Open Reduction Internal Fixation - ORIF (4)
- Surgical repair
- Rods, screws, pins, plates
- Casting/immobilization
- WB modifications
Presentation of ORIF post surgery (4)
- Pain
- Edema
- Limited ROM
- Strength limits - local, proximal, distal
Indications of external fixation (3)
- Open fracture
- Closed severe Fx causing soft tissue damage or mutilple fractures
- Limb alignment
Complex regional pain syndrome (CRPS)
Chronic disease characterized by severe pain, swelling and skin changes following trauma . Pain is disproportionate to injury.
Usually seen in clients with immobilization and Fx
CRPS I
Formerly reflex sympathetic dystrophy
The absence of nerve injury
CRPS II
Formerly ‘causalgia’, nerve injury present
Etiology of CRPS
Unknown
Malfunction of the CNS and the PNS
Risk factors of CRPS (4)
- Fx
- Immobilization
- Female gender
- Concurrent motor nerve injury (type II)
Sign of CRPS Impact on sensory related function
Temperature changes -cold, clammy, sweaty skin
Signs of CRPS Impact on movement related function(4)
- Edema
- Decreased joint ROM
- Muscle spasm/weakness/tremor
- Alt. movement patterns (dystonia)
Signs of CRPS Impact on skin related functions (2)
- Color - white, red , blue
2. Texture - shiny, thin
Symptoms that Impact sensory function in CRPS (3)
- May have chronic pain
- Constant Burning/throbbing
- Hypersensitivity - touch, cold
Symptoms that Impact movement related function in CRPS (2)
- Joint stiffness
2. Difficulty moving extremities
Symptoms that Impact the mental function in CRPS (3)
- Depression
- Anxiety
- PTSD
How do you treat the mental function in CRPS ? (2)
- Medication
2. Desensitization with WB exercises