NLE Musculoskeletal Nursing — Fractures, Trauma and Orthopedic InjuriesSummary

A fracture is a break in the continuity of bone, usually from trauma but also from disease (pathologic fracture) or repetitive stress. Fractures are classified by completeness (complete vs. incomplete), skin integrity (closed/simple vs. open/compound), bone pattern (comminuted, greenstick, spiral, transverse, oblique, impacted), and fragment alignment (displaced vs. nondisplaced). Open fractures carry high risk of infection and osteomyelitis. Clinical manifestations include pain, loss of function, deformity, limb shortening, crepitus (audible bone grinding), swelling, and ecchymosis (bruising). Understanding fracture type guides initial management, infection risk, and healing timeline.

Bone healing occurs in five overlapping stages: (1) Hematoma formation (first 1-3 days) — bleeding at the fracture site forms a clot that stabilizes fragments; (2) Fibrocartilage (soft) callus formation (within ~1 week) — fibroblasts and chondroblasts lay down a fibrocartilaginous bridge, providing early structural support but limited strength; (3) Bony (hard) callus formation (weeks 2-6) — osteoblasts convert the soft callus to woven bone, dramatically increasing strength; (4) Ossification — the callus matures into solid lamellar bone with organized architecture; (5) Remodeling (weeks to months) — osteoblasts and osteoclasts reshape bone along stress lines, restoring original contour and mechanical properties. Factors delaying healing include poor blood supply, infection, advanced age, poor nutrition (inadequate protein, calcium, vitamin D), smoking, diabetes, and corticosteroid use. Non-union (failure to heal), delayed union, and malunion (deformed healing) are complications to monitor.

At the scene or in emergency departments, immobilize the fracture in the position found using splints that include joints above and below the injury to prevent further trauma and reduce pain. Apply the ABCs of emergency care first — airway, breathing, and circulation take priority over the fracture. For open fractures, cover the wound with a sterile dressing immediately and control bleeding with direct pressure; do not explore the wound. Assess neurovascular status (pulses, skin color, temperature, sensation, motor function) before and after splinting to detect neurovascular compromise. Definitive reduction restores alignment through closed reduction (manual manipulation followed by casting), open reduction and internal fixation (ORIF with plates, screws, or rods), or external fixation (external frame with percutaneous pins). Neurovascular reassessment after any intervention is mandatory.

Casts immobilize reduced fractures and are made of plaster or fiberglass. During application, the limb is positioned in proper alignment. After casting, nursing care includes: (1) Supporting a wet plaster cast with palms (not fingers) to prevent indentation and pressure points; (2) Elevating the limb above heart level for the first 24-48 hours to reduce edema; (3) Applying ice around (not on) the cast for the first 24-48 hours; (4) Performing frequent neurovascular checks (at minimum every 2 hours initially, then at least every 4 hours per hospital protocol) and documenting findings; (5) Teaching the patient never to insert objects into the cast and to report immediately any increase in pain, numbness, coolness, foul odor, or drainage — signs of neurovascular compromise, infection, or skin breakdown. Casts should be clean, dry, and intact; small window cuts may be made for wound inspection if ordered.

Traction maintains fracture reduction and reduces muscle spasm. Skeletal traction uses weights applied via a pin inserted into the bone (requires aseptic pin-site care); skin traction uses weights applied via straps on intact skin. Key maintenance principles: (1) Weights hang freely and never touch the floor — suspension is essential to traction pull; (2) Ropes remain on the pulleys without kinks or slack; (3) Countertraction is maintained (patient's body weight or a footboard provides it); (4) Never remove or add weights without specific provider orders, as this disrupts alignment; (5) Pin sites in skeletal traction require aseptic care per protocol (cleaning with sterile saline or chlorhexidine, assessing for infection/drainage, keeping pin sites dry); (6) Perform neurovascular checks regularly; (7) Encourage mobilization within limits of traction (repositioning in bed every 2 hours, deep breathing, coughing, ankle flexion/extension to prevent DVT). Traction duration depends on fracture type and healing; patients may transition from traction to cast after initial healing.

Fat embolism syndrome occurs when fat globules from the marrow of a fractured long bone (femur, tibia, humerus) or pelvis enter the venous circulation and lodge primarily in the lungs and cerebral circulation, causing ischemia and inflammation. FES typically appears 24-72 hours after injury — a critical time window to recognize. The classic triad of manifestations is: (1) Hypoxemia — dyspnea, tachypnea, decreased oxygen saturation (earliest sign, most reliable), even respiratory distress; (2) Neurologic changes — confusion, restlessness, altered mental status, agitation, disorientation (from cerebral ischemia); (3) Petechial rash — small red/purple non-blanching dots appearing over the chest, axillae, upper inner arms, and conjunctiva (from capillary rupture and microembolization). Additional signs include fever, tachycardia, thrombocytopenia, and elevated lipase. Pathophysiology: fat emboli directly block capillaries and trigger an inflammatory cascade releasing cytokines, serotonin, and thromboplastin, worsening ischemia and coagulation dysfunction. FES can progress to acute respiratory distress syndrome (ARDS) and death if not managed.

When FES is suspected, nursing priorities follow Maslow's hierarchy — physiologic needs (oxygenation) come first. (1) Administer high-flow oxygen immediately to correct hypoxemia; monitor oxygen saturation and arterial blood gases; prepare for mechanical ventilation if respiratory status deteriorates. (2) Position the patient upright (head of bed elevated 30-45 degrees) to optimize lung expansion and gas exchange. (3) Notify the provider urgently — FES is a medical emergency requiring physician evaluation and possible ICU monitoring. (4) Support respiratory and hemodynamic function — monitor vital signs continuously, assess lung sounds, watch for signs of shock or ARDS. (5) Provide reassurance and explain treatments to reduce anxiety, which worsens hypoxemia. (6) Prevention is paramount — early fracture immobilization (within hours, not days) and gentle handling of fractured long bones reduce fat mobilization. Patients at highest risk are those with femoral or pelvic fractures; early mobilization and internal fixation reduce FES incidence. Post-ICU care includes monitoring for psychological effects and rehabilitation of any residual neurologic deficits.

Compartment syndrome is a surgical emergency in which pressure within a muscle compartment (bounded by inelastic fascia) rises high enough to compromise arteriolar perfusion and venous drainage, leading to tissue ischemia. Pressure rises from internal causes (swelling, bleeding post-trauma) or external causes (tight cast, tight dressing, circumferential burn). Irreversible muscle and nerve damage occurs within 4-6 hours — this is why compartment syndrome is a true emergency requiring immediate action. Assessment uses the 6 Ps: (1) **Pain** — most reliable early sign, typically severe, unrelenting, out of proportion to physical findings, and worst with passive stretch of the digits in that compartment (passive extension or flexion of toes in a leg compartment, for example). Pain with passive stretch is the cardinal sign preceding other findings. (2) **Pallor** — pale or ashen skin color from decreased perfusion. (3) **Pulselessness** — loss of distal pulses; a late sign, indicating severe ischemia; do not wait for this to act. (4) **Paresthesia** — tingling, numbness, or burning from nerve ischemia. (5) **Paralysis** — weakness or paralysis of muscles in the compartment; a late, ominous sign. (6) **Poikilothermia** — coolness of the limb from decreased blood flow. Pain with passive stretch is the earliest and most sensitive indicator; it may appear before other signs develop.

When compartment syndrome is suspected, the nursing response must be swift and precise. CRITICAL ACTIONS: (1) **Notify the provider immediately** — this is a surgical emergency requiring urgent fasciotomy (surgical incision of the fascia to decompress the compartment). (2) **DO NOT elevate the extremity above heart level** — elevation reduces arterial inflow and worsens ischemia; keep the limb at heart level only. (3) **DO NOT apply ice** — ice causes vasoconstriction, reducing perfusion; avoid all measures that impair blood flow. (4) **Loosen or bivalve the cast** as ordered (bivalving cuts the cast lengthwise on two sides) to relieve external compression. (5) **Remove tight dressings or constrictive bandages** immediately as ordered. (6) **Continue frequent neurovascular checks** and document all findings, including pain characteristics, pulses, color, temperature, sensation, and motor function. (7) **Prepare the patient for emergency fasciotomy** — the only definitive treatment for compartment syndrome refractory to conservative measures; fasciotomy must be performed within the 4-6 hour window to preserve function. After fasciotomy, the wound is typically left open initially and may require skin grafting after edema resolves. Post-operative care includes monitoring for infection, managing the open wound, and supporting rehabilitation and limb salvage.

Immobilized fracture patients face multiple serious complications: (1) **Deep vein thrombosis (DVT) and pulmonary embolism (PE)** — immobility, vessel wall injury, and hypercoagulability (especially after trauma) promote clot formation in leg veins; clots can dislodge and lodge in lungs, causing PE (life-threatening). Prevention includes early mobilization when safe, anticoagulant prophylaxis (per protocol, e.g., enoxaparin), sequential compression devices, and leg exercises. (2) **Osteomyelitis** — bone infection, especially after open fractures where bacteria enter through the wound; presents with fever, increased pain, drainage, and systemic signs; treated with prolonged antibiotics (often 4-6 weeks) and surgical debridement if needed. (3) **Hemorrhage and hypovolemic shock** — femoral or pelvic fractures can cause massive internal bleeding into the thigh tissues or pelvis; monitor for hypotension, tachycardia, pale skin, and decreased hemoglobin; prepare for transfusion and possible surgical hemostasis. (4) **Avascular necrosis (AVN)** — death of bone from loss of blood supply, particularly in femoral head (hip), scaphoid (wrist), and talus (ankle); develops weeks to months after injury; causes pain, loss of motion, and eventual collapse of the bone; may require surgical joint replacement. Understanding these complications guides monitoring, prevention, and early intervention.

Not all orthopedic injuries involve bone fracture. A **sprain** is a stretch or partial/complete tear of a ligament (connective tissue joining bone to bone), causing pain, swelling, limited motion, and sometimes instability. A **strain** is a stretch or tear of a muscle or tendon, causing muscle pain, swelling, spasm, and weakness. Both are managed initially with **RICE** protocol: (1) **Rest** — avoid stressing the injured structure; use crutches or avoid weight-bearing if needed. (2) **Ice** — apply ice for 15-20 minutes every 2-3 hours during the first 24-48 hours to reduce swelling and pain by causing vasoconstriction; do not apply ice directly to skin. (3) **Compression** — wrap with an elastic bandage or compression sleeve to reduce swelling; ensure compression is snug but does not impair circulation. (4) **Elevation** — raise the injured part above heart level to reduce swelling via gravity. After 48 hours, heat may be applied (warm compress, warm bath) to promote circulation and healing. Additional care includes range-of-motion exercises as tolerated, analgesics, and possibly anti-inflammatory drugs. Most sprains and strains heal with conservative care over weeks to months, though severe sprains may require immobilization or surgery.

A **dislocation** is complete displacement of a bone from its joint (e.g., dislocated shoulder), and a **subluxation** is a partial or incomplete dislocation that may reduce spontaneously. Both are orthopedic urgencies because the displaced bone can compromise nearby blood vessels and nerves, leading to neurovascular compromise or permanent damage. Clinical signs include severe pain, visible deformity, limited motion, and swelling. Immediate nursing actions: (1) Assess neurovascular status distal to the injury (pulses, color, temperature, sensation, motor function) before and after any manipulation — document findings and notify the provider of any compromise. (2) Immobilize the joint as found (in the position of dislocation) using a sling, splint, or pillows; do not attempt to force the joint back into place. (3) Apply ice and elevate if possible to reduce swelling. (4) Notify the provider urgently for reduction — a physician or advanced provider must perform reduction, typically under analgesia or sedation. (5) After reduction, obtain X-rays to confirm alignment and rule out associated fractures; immobilize as ordered (often sling for shoulder) and reassess neurovascular status. (6) Educate the patient about preventing recurrent dislocation (especially for shoulders, which have higher recurrence risk) through activity modification and strengthening exercises.

Amputation is the surgical removal of a limb or part of a limb, performed for peripheral vascular disease, uncontrolled diabetes with gangrene, severe trauma (crush injury, mangling), infection (gas gangrene, osteomyelitis unresponsive to treatment), or malignancy. Levels of amputation range from partial foot to above-knee to above-elbow, affecting functional outcome and prosthetic fitting. Postoperative nursing care priorities: (1) **Monitor for hemorrhage** — keep a tourniquet at the bedside for emergency application if the stump bleeds heavily (a complication); monitor the dressing for blood saturation, reinforce as needed, and report excessive bleeding. (2) **Position to prevent contractures** — elevate the residual limb (stump) on a pillow for the first 24 hours only to reduce edema; prolonged elevation causes hip or knee flexion contractures, which complicate prosthetic fitting. After 24 hours, avoid elevation and encourage the patient to lie prone periodically (if an upper-limb amputation, prone positioning prevents hip flexion contractures; avoid pillows under knees or between thighs long-term). (3) **Perform residual limb care and conditioning** — keep the stump clean and dry, perform gentle active range-of-motion exercises, and begin wrapping with elastic bandages to shape and prepare the stump for a prosthesis. (4) **Manage pain** — analgesics for incision pain and, importantly, phantom limb pain (see below). (5) **Encourage mobility and rehabilitation** — assist with transfer techniques, crutch training, and prosthetic training when the stump is healed (typically 4-6 weeks); involve physical and occupational therapy early.

**Phantom limb sensation** is the patient's perception that the amputated limb is still present — tingling, itching, pressure sensations. **Phantom limb pain** is the experience of pain as if the amputated part were still there, often in the same location where pain existed before amputation. Phantom limb phenomena are **real physiologic phenomena, not imaginary or psychological**, arising from residual nerve activity and central nervous system reorganization; they are most common immediately after amputation and may persist for years in some patients. Incidence is high (50-80% of amputees experience some form). Management includes: (1) **Validate and acknowledge the pain** — never dismiss the patient's report as "not real" or psychological; this causes distrust and undertreatment. (2) **Analgesics** — standard pain medications for acute pain. (3) **Adjunctive medications** — gabapentin or pregabalin (neuropathic pain agents), tricyclic antidepressants (amitriptyline), or other agents per provider. (4) **Non-pharmacologic methods** — mirror therapy (patient views the intact limb in a mirror, creating visual illusion of the amputated limb, and performs movements, which may "reprogram" perception), TENS (transcutaneous electrical nerve stimulation), massage of the stump, positioning, cold/heat application, and relaxation/distraction techniques. (5) **Psychological support** — phantom limb pain can cause depression and reduced rehabilitation engagement; counseling and support groups help. The pain typically decreases over months, but some patients experience chronic phantom pain requiring long-term management.

Amputation represents a profound loss — of body function, mobility, independence, and body image — comparable to grief over death. Patients may experience denial, anger, bargaining, depression, and gradual acceptance (Kübler-Ross stages). Body image disturbance is common; patients may avoid looking at the stump, decline self-care, or isolate. Psychosocial nursing interventions: (1) **Encourage expression of feelings** — create a safe, non-judgmental space for the patient to voice grief, anger, and fears; listen actively without minimizing. (2) **Involve the patient in care decisions** — maximize autonomy and control; allow choices in stump care, dressing changes, and rehabilitation timing. (3) **Provide honest, hope-filled information** — explain prosthetic advances, rehabilitation potential, and examples of other successful amputees to foster hope without false reassurance. (4) **Connect with support resources** — peer support groups (other amputees), rehabilitation specialists, social work, mental health counseling, and community resources. (5) **Address sexuality and intimacy concerns** — amputation may affect sexual function and body image in intimate relationships; supportive counseling and reassurance help. (6) **Promote gradual acceptance** — acknowledge that acceptance takes time; celebrate small milestones in rehabilitation. Family involvement in care and education facilitates support. Most patients with good rehabilitation support adjust well and return to meaningful activities, though some experience long-term depression or adjustment disorder requiring mental health intervention.

Patient and family education is a cornerstone of orthopedic nursing, directly affecting healing, compliance, and prevention of complications. Teaching topics include: (1) **Cast and wound care** — keep cast clean and dry, do not submerge in water (unless synthetic cast approved for water), avoid inserting objects into cast, report any foul smell or drainage. (2) **Signs of neurovascular compromise** — numbness, tingling, coolness, color changes, severe pain, or pulselessness require immediate medical attention. (3) **Signs of infection** — fever, increased pain, drainage from cast windows or wound, warmth at the fracture site. (4) **Safe use of mobility aids** — correct crutch fitting and gait training (crutches should not bear weight in armpits, risking nerve damage), walker use, and progression to independent ambulation. (5) **Weight-bearing precautions** — understand "non-weight-bearing," "partial weight-bearing," or "full weight-bearing" status and follow restrictions to avoid re-injury. (6) **Nutritional support for bone healing** — adequate protein (builds callus), calcium and vitamin D (bone mineralization), vitamin C (collagen), and fluids; encourage dairy products, leafy greens, legumes, and fortified foods common in Filipino diet. (7) **Smoking cessation** — smoking delays healing significantly; offer cessation resources and motivational interviewing. (8) **Activity progression and rehabilitation** — physio and range-of-motion exercises to prevent stiffness. (9) **Return-to-work and driving restrictions** — clarify when safe to resume work, driving based on fracture location and healing. (10) **Follow-up care** — importance of X-rays to confirm healing, provider appointments, and recognition of complications. Use teach-back method (ask patient to demonstrate or explain back) to verify understanding. Consider health literacy level and use interpreters for non-Tagalog speakers per Philippine healthcare standards.

Fracture type determines urgency and initial nursing actions. Open fractures require immediate wound coverage, sterile technique, and antibiotic prophylaxis within the first hours (RA 9173 standards) to prevent osteomyelitis — a higher priority than simple immobilization. Comminuted fractures may require ORIF (open reduction internal fixation) rather than simple casting, affecting surgical planning. Pathologic fractures underlying disease requires simultaneous oncology or rheumatology management. Greenstick (children) and impacted fractures have different healing timelines. Classification guides triage, resource allocation, and prevention.

Understanding bone healing stages directly dictates when weight-bearing is safe. Hematoma and soft callus stages (first 1-2 weeks) are fragile; non-weight-bearing restrictions apply. Hard callus stage (weeks 2-6) allows partial weight-bearing as osteoblasts strengthen bone. By ossification and remodeling (weeks 6+), full weight-bearing may be safe. Delayed healing (from poor nutrition, smoking, diabetes) extends these timelines — nurses educate patients about prolonging restrictions and recognizing delayed healing. Conversely, premature weight-bearing before hard callus forms risks refracture; patient education about activity restrictions directly prevents complications.

Prolonged immobilization creates a cascade of complications nurses must prevent: DVT/PE (immobility + hypercoagulability) prevented by early mobilization, anticoagulants, and leg exercises; skin breakdown under casts prevented by neurovascular checks and proper cast padding; muscle atrophy prevented by isometric exercises within immobilization; stiffness prevented by range-of-motion exercises post-immobilization. Nurses who understand this relationship prioritize preventive care, educate patients, and recognize early signs of complication. The principle "movement within limits is healing" guides nursing care.

FES is most common after femoral and pelvic fractures, where fracture displacement releases bone marrow fat into venous circulation. Femoral shaft fractures and unstable pelvic fractures carry highest risk. Early fracture immobilization and gentle handling reduce fat mobilization and FES incidence — this is the primary prevention strategy. Nurses recognize that the 24-72 hour window post-injury is critical; vigilant monitoring for hypoxemia, neurologic changes, and petechiae during this window allows early recognition and oxygen therapy before ARDS develops. The relationship between fracture severity → FES risk → outcome emphasizes early intervention.

Swelling within muscle compartments bounded by inelastic fascia raises pressure. If pressure exceeds arteriolar perfusion pressure (approximately 30 mmHg, though tissue-specific), blood flow ceases and ischemia begins. Factors increasing swelling risk — crush injury, high-velocity trauma, large fracture displacement — correspond to high compartment syndrome risk. Tight casts or dressings compound the problem by adding external compression. Nurses who understand this relationship recognize that pain with passive stretch indicates rising pressure BEFORE pulses are lost or paralysis develops — and they act within the critical 4-6 hour window by loosening external compression and calling for fasciotomy. Early recognition directly prevents disability.

Before any immobilization, nurses establish a neurovascular baseline (pulses, color, temperature, sensation, motor function) against which all future assessments are compared. After cast or traction application, the limb is at high risk for neurovascular compromise from swelling or external pressure. Serial checks (every 2 hours initially, then per protocol) detect changes — increasing pain, numbness, coolness, pallor, pulselessness — that signal compartment syndrome or other vascular compromise. Documentation of trends (not just single checks) guides clinical decisions. This relationship emphasizes assessment as continuous, not one-time, and prioritizes patient safety.

A critical relationship for NLE success: RICE (Rest, Ice for 24-48 hours, Compression, Elevation) is appropriate for simple soft tissue swelling (sprains, strains), where reducing swelling reduces pain and accelerates healing. However, in compartment syndrome, ice and elevation reduce arterial inflow and worsen ischemia — the opposite of the desired effect. Students must recognize when RICE applies and when it is contraindicated. The assessment difference is key: in soft tissue injury, swelling is the problem; in compartment syndrome, compartment pressure is the problem. Pain with passive stretch is the critical discriminator — this sign indicates compartment syndrome, not simple strain. Confusing these approaches is a patient-safety error; nurses must know when to apply RICE and when to loosen casts and avoid elevation.

Open fractures introduce bacteria into the wound and fracture site, creating high osteomyelitis risk. Immediate antibiotic prophylaxis (within hours of injury) reduces infection significantly. Nursing priorities include early sterile wound coverage, documentation of time to antibiotic initiation, tetanus prophylaxis, and vigilant wound monitoring post-operatively. Osteomyelitis (if it develops despite prophylaxis) requires prolonged IV antibiotics and surgical debridement; nurses monitor for fever, increased pain, purulent drainage, and systemic signs. This relationship emphasizes that prevention (early antibiotics) is more effective than treatment (months of antibiotics post-infection).

Amputation causes profound loss of body image, function, and independence, triggering grief comparable to bereavement. Patients progress through Kübler-Ross stages (denial, anger, bargaining, depression, acceptance) at variable rates. Psychosocial support during hospitalization and early rehabilitation predicts long-term adjustment outcomes; depression and social isolation are common complications if support is inadequate. Nurses who understand this relationship provide compassionate, evidence-based care including active listening, hope-filled education, peer support connection, and mental health referral when needed. The relationship between body image, grief, and rehabilitation success emphasizes holistic care.

Phantom limb pain arises from residual nerve activity and CNS reorganization, not imagination. Dismissing it as psychological leads to undertreatment, patient distrust, and psychological harm. Recognizing it as physiologic guides appropriate management — analgesics, neuropathic pain drugs (gabapentin, pregabalin), mirror therapy, TENS, relaxation. The relationship emphasizes that acknowledging the pain (validating the patient's experience) is the first step in treatment and that evidence-based, multi-modal pain management improves outcomes and rehabilitation engagement.

Prolonged immobilization promotes muscle contraction and joint stiffness (contractures), especially if positioning favors flexion. After amputation, hip/knee flexion contractures complicate prosthetic fitting and function. After long-bone fractures, ankle plantarflexion contractures limit weight-bearing. Nurses prevent contractures through strategic early positioning (prone lying for hip extension, keeping joints neutral), removal of immobilization as early as safe, and progressive range-of-motion exercises. Early mobilization (even passive ROM if active is not yet safe) preserves joint function and enables faster return to independence. This relationship emphasizes that positioning, mobility, and function are interdependent — nursing attention to positioning directly affects long-term outcome.