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Musculoskeletal Disorders Megan McClintock, MS, RN Fall 2011 Skeletal Functions Support and framework for body Protection of vital organs Assist with movement Blood cell production Mineral and salt storage Structure Bone Joints Cartilage Muscle Ligaments/Tendons Fascia Bursae Assessment - Subjective Gerontologic differences Past health history Medications Nutrition Occupation Assessment - Objective Inspection Palpation Motion Muscle-Strength Testing Measurement Scoliosis Straight-leg raising test Common Abnormalities Table 62-6 (pg 1577) Diagnostic Studies Diskogram Myelogram DEXA Bone scan Arthroscopy Arthrocentesis EMG Duplex venous doppler SSEP Labs Alkaline phosphatase Calcium Phosphorus RF ESR ANA Complement Uric acid CRP CK Contusions Soft tissue injury from blunt force Overlying skin intact, but area becomes black and blue from localized hemorrhage Usually only painful if palpated Hematoma Blood collection that occurs from torn blood vessel Pain occurs as blood accumulates and places pressure on nerves Pain occurs without palpation Hematomas may burst or become infected Strains Overstretched tendons or overused muscles Usually arise from twisting or wrenching movements Acute – sudden, severe incapacitating pain with swelling Chronic – repetitive movements; pain less severe but longer term (tennis elbow, runner’s knee) Strains Sprains Ligament injuries Grade 1 (mild) – small longitudinal ligament fiber separation Grade 2 (moderate) - <100% of ligament is torn in cross-sectional direction. Function impaired Grade 3 (severe) – ligament completely torn. Surgery required Grade 4 (sprain fracture) – avulsion of bone fragment at site of ligament attachment Sprains Interventions Prevent R – est I – ce C – ompress E – levate Analgesia as necessary After 24-48 hrs, warm moist heat Subluxation/Dislocation Bones are dislodged from normal positions within joints Subluxation = partial dislocation Joint capsule and ligaments damaged Usually deformity at site S/S: altered length of extremity, loss of function Subluxation-dislocation of knee Interventions Orthopedic emergency Assist with realignment Pain relief Restriction of movement Future activity restrictions Fractures Disruption in continuity of bone Usually involves damage to surrounding soft tissue S/S - pain, swelling, loss of function, deformity, abnormal mobility, bruising (also see pg 1591) May be classified by severity and direction of fracture Type of Fracture Open (compound) Closed (simple) Incomplete Complete Displaced Comminuted Direction of Fracture Transverse Oblique Spiral Greenstick Bone Healing Fracture Reduction Closed reduction ORIF (open reduction with internal fixation) Traction Fracture Repair Casting Fracture Repair External fixation Fracture Repair Internal fixation Drugs Muscle relaxants Pain medications Tetanus prevention Antibiotics Nutrition Ample protein Vitamins B, C, D Calcium Phosphorus Magnesium 2000-3000 mL/day of fluids High-fiber diet Interventions Assessment Distal to the extremity Neurovascular Peripheral vascular Peripheral neurologic Prevention Safety equipment Elderly (also see pg 1584) Interventions Pre-op skin prep Post-op neurovascular assessment Proper alignment & positioning Observe for bleeding, drainage Prevention of constipation Prevention of kidney stones Maintenance of cardiopulmonary system Traction Interventions Inspect skin and pin sites carefully Pin site care Correct positioning ROM of unaffected joints Maintain traction at all times Cast Care Interventions Handle a wet cast with palms only Support cast with pillows when wet Elevate at or above heart level Do not scratch skin with any objects Pad rough cast edges Can use cool air from hair dryer to help with itching Apply ice for first 24-36 hours Do not get cast wet Use of Crutches Fracture Complications Direct Infection Inadequate bone union Avascular necrosis Indirect Compartment syndrome Venous thromboembolism (VTE) Rhabdomyolisis Fat embolism Shock Infection High incidence with open fx or soft tissue injury Need aggressive debridement Venous Thromboembolism (VTE) Esp. after hip fx, THA, total knee Prevent – anticoagulants, SCDs, ROM to unaffected joints Compartment Syndrome Pressure that compromises neurovascular function Causes – restrictive dressings, edema S/S – Pain unrelieved by drugs and out of proportion – 1st, late is no pulses, paralysis, dark brown urine Tx – quick recognition, do NOT elevate, NO cold, fasciotomy Fat Embolism Syndrome Systemic fat globules lodge in organs and tissues Risk with long bone, ribs, tibia, pelvis fx S/S – chest pain, tachypnea, dyspnea, change in mental status, hypoxia, petechiae on neck, chest, axilla, eyes, sense of impending doom Tx – early recognition!, reposition as little as possible, oxygen Types of Fractures Colles’ – wrist fx Silver-fork deformity Move thumb, fingers, shoulder Humerus Cx – radial nerve or brachial artery injury, frozen shoulder Pelvic Fracture Can be life-threatening S/S – bruising on the abdomen, pelvis instability, swelling, tenderness Tx – Bed rest (few days to 6 weeks), may need traction, hip spica cast, ORIF, only turn when ordered by HCP Hip Fracture 30% die within 1 year of injury S/S – external rotation, mm spasm, shortening of affected leg, severe pain Cx – nonunion, avascular necrosis, dislocation, arthritis Tx – surgery, may temp. use Buck’s traction Hip Fracture Post-Op Care Pillows/abductor splint between knees esp. when turning, avoid extreme hip flexion, don’t turn on affected side, OOB on first post-op day, in hospital for 3-4 days Posterior approach Table 63-11 (pg 1607) No extremes in flexion No putting on shoes, socks No crossing the legs or feet No low toilet seats Precautions for 6 weeks Anterior approach Limited restrictions Types of Fractures Femoral Shaft Can have lots of blood loss, risk of fat embolism Tx – ORIF with traction after, hip spica cast Tibia Neurovascular assessment q 2 hrs x 48 hrs Stable Vertebral Logroll, orthotic devices, hard cervical collar Vertebroplasty Kyphoplasty Facial Fractures Impt to maintain patent airway, provide adequate ventilation Assume that they have a cervical injury Always have suction available For jaw fractures: Position pt on the side with head slightly elevated Wire cutter/scissors at the bedside Trach tray always available NG tube decompression Oral hygiene is impt Protein supplements Amputation Pain is not a primary reason Pre-op preparation Post-op Sterile technique for dressing changes Immediate prosthesis vs delayed Don’t sit in chair > 1 hr Lie on abdomen 3-4 times/day Residual limb bandaging Table 63-14 (pg 1613) Joint Procedures Synovectomy Osteotomy Remove a wedge of bone Debridement Removal of synovial membrane Removal of degenerative debris Arthroplasty Reconstruction or replacement of a joint Total Hip Arthroplasty (THA) See notes from hip fracture Can’t drive or take tub bath for 4-6 weeks Knees must be kept apart Don’t cross legs Don’t twist to reach behind Quadriceps and hip muscle exercises High risk for thromboembolism No high-impact exercises/sports Usually stay in the hospital 3-5 days Carpal Tunnel Syndrome Compression of the median nerve Women more likely to get S/S – thumb weakness, burning pain, numbness, parasthesia Tinel’s and Phalen’s sign http://tinyurl.com/cre5lf2 Tx – splints, rest, surgery Rotator Cuff Injury Muscles that stabilize the humeral head and give ROM Cause – fall onto outstretched arm, repetitive overhead arm motion, heavy lifting S/S – shoulder weakness, pain, decreased ROM Drop arm test http://tinyurl.com/d2jq5jc Tx – RICE, corticosteroid injection, surgery Meniscus Injury Occur with ligament sprains in a rotational force injury S/S – no edema (unless other injury), tenderness, pain, effusion in the joint, felt a “pop”, knee locks or gives way, MRI McMurray’s test http://tinyurl.com/cev9lx9 Tx – RICE, knee brace, arthroscopy, rehab starts quick Prevention – warm-up exercises Anterior Cruciate Ligament (ACL) Injury Usu. Occur from non-contact S/S – hear a “pop”, pain, swelling Lachman’s test http://tinyurl.com/ccfk9ws Tx – RICE, crutches, knee brace, reconstructive surgery May take 6-8 months to recover Higher risk for future knee osteoarthritis Bursitis Inflammation of the bursa (common sites – hand, knee, hip, shoulder, elbow) Cause – repeated trauma, gout, RA, infxn S/S – warmth, pain, swelling, decreased ROM Tx – REST, may ice, may aspirate or use corticosteroids Osteomyelitis Acute vs Chronic Staphylococcus aureus Pathophysiology Signs/Symptoms Fever, night sweats, bone pain worse with activity, swelling, redness, warmth Diagnostic Studies Bone/soft tissue biopsy, WBCs, ESR, xray doesn’t show until 10 days+ Osteomyelitis Management Long IV therapy (5 weeks – 6 months) Antibiotic-impregnated beads Intermittent or constant irrigation Wound VAC Hyperbaric oxygen Removal of prosthetic devices Osteomyelitis Interventions Absorbant dressings using sterile technique Bed rest No exercise or heat application Observe for abx side effects Bone Tumors Osteochondroma Benign, overgrowth at growth plate S/S – painless, hard mass, shortened extremity Tx – none if asymptomatic Osteosarcoma Aggressive, rapidly metastisizes More common with Paget’s disease S/S – gradual onset of pain/swelling Is NOT caused by a minor injury Be very careful when turning/handling Muscular Dystrophy (MD) Genetic disease with progressive, symmetric wasting of skeletal muscles but no neuro involvement Several different types No cure (corticosteroids may help) Keep the patient active as long as possible Low Back Pain Very common Causes – strain, instability, osteoarthritis, DDD, disk herniation Acute vs chronic Straight leg test http://tinyurl.com/btbnoq4 Tx – analgesics, muscle relaxants, massage, heat and cold Avoid prolonged bed rest Stop smoking See Table 64-6 (pg 1627) Intervertebral Disk Disease Progressive degeneration – normal process of aging – that can lead to herniated disks Most common sites of slipped disks – L4-5, L5-S1, C5-6, C6-7 S/S – low back pain, radicular pain to buttock and below the knee, for cervical disk have radicular pain to arms/hands Straight leg test is usu. positive Xray, myelogram, MRI, CT Conservative tx first, may need laminectomy, diskectomy, or spinal fusion Spinal Surgery Must maintain proper alignment until healing has occurred Pillows under thighs when supine, between legs when sidelying IV opioids for 24-48 hrs, muscle relaxers Watch for CSF leak Movement and sensation should be unchanged after surgery – check q 2-4 for 48 hours Clarify if they need brace or corset Check donor site – usu. more painful Avoid sitting or standing for prolonged times No twisting movements of the spine Firm mattress or bed board Neck Pain Very common Usu. occur from hyperflexion and hyperextension S/S – stiffness, neck pain, pain radiating to arm/hand Tx – conservative, head support, heat and ice, massage, rest, PT, US, NSAIDs See Table 64-10 (pg 1632) Foot Disorders Usu. caused by improperly fitted shoes Send to a podiatrist If surgery, usu. have a bulky dressing Elevate foot Crutches, cane, walker (may have throbbing sensation when starting to walk) Daily foot care Trim toenails straight across Osteomalacia (Rickets) Loss of minerals in bones Bones soft rather than brittle Caused by Inadequate calcium intake Inadequate Vit. D intake or resistance to actions of Vit. D Increased renal loss of phosphate Osteomalacia Bones most affected Spine, pelvis, lower extremities S/S Localized bone pain Difficulty getting up from chair, walking Bone deformities (bowed legs) Fractures Tx Vit D supplements Diet Exposure to sunlight Weight bearing exercise Osteoporosis Resorption rate > formation rate Net loss of both bone protein matrix and mineral components Bone composition normal just not enough of it Bone is brittle, fragile, easily broken Osteoporosis bone mass Osteoporosis Risk Factors Endocrine causes Heredity, sex, race, early menopause, poor nutrition, sedentary lifestyle, thinness, smoking, ETOH ingestion Cushing’s syndrome, diabetes, hyperthyroidism, hyperparathyroidism Drug-related causes Glucocorticosteriods, anticonvulsants, some antacids, diuretics, thyroid medications Osteoporosis Signs & symptoms Back pain or spontaneous fractures (1st symptom) Loss of height Deformity (Dowager’s hump) Pathological fracture As many as 30% of white women will have a pathological fracture d/t osteoporosis Osteoporosis Treatment Calcium supplementation Proper nutrition Exercise Medications Calcium supplement Biphosphonates Paget’s Disease Systemic disease involving multiple body systems Excessive bone resorption followed by excessive and abnormal bone replacement long bones, pelvis, cranium, & spine Cause – may be viral Paget’s Disease Signs & Symptoms Pain with weight-bearing, cranial enlargement, kyphosis, bowed legs, reduction in height, sore bones, pathological fractures Headaches, tinnitus, hearing loss, nerve palsies, cardiovascular & respiratory failure Alkaline phosphatase levels increased