Understanding Musculoskeletal Nursing Assessment
The musculoskeletal (MSK) system provides structure, support, movement, mineral storage, haematopoiesis and protection of internal organs. It comprises bones (the skeleton), joints (articulations), skeletal muscle, tendons (muscle to bone), ligaments (bone to bone), cartilage, fascia and bursae. According to the WHO, MSK conditions are the leading global contributor to years lived with disability and affect approximately 1.71 billion people worldwide, with low back pain alone accounting for the largest single share.
Core nursing cues include pain (localised, referred or radicular), swelling, stiffness, reduced range of motion (ROM), weakness, deformity, crepitus, instability and functional impairment. A structured assessment uses look, feel, move, test: inspection (alignment, symmetry, swelling, erythema, atrophy), palpation (tenderness, warmth, crepitus, tone), active and passive ROM, manual muscle strength testing on the MRC 0–5 scale, special orthopaedic tests (e.g. Lachman, McMurray, Phalen, drop arm), gait analysis and a focused neurovascular check (the “6 Ps” — pain, pallor, paraesthesia, paralysis, pulselessness, poikilothermia — plus capillary refill).
Musculoskeletal care overlaps with rheumatology, neurology, endocrinology, oncology, infectious disease and trauma. Common worldwide presentations include fractures, sprains and strains, osteoarthritis (OA), inflammatory arthritis (rheumatoid arthritis, spondyloarthritis), tendinopathy, bursitis, osteoporosis, low back pain, gout and soft-tissue injuries. Nursing responsibilities include analgesia using a multimodal, opioid-sparing approach, immobilisation (splints, casts, traction, external fixators), neurovascular monitoring, fall and venous thromboembolism (VTE) prevention, mobility and rehabilitation support, wound and pin-site care, and patient education on joint protection, exercise, bone health and safe medication use.
Core anatomy and physiology points
Bone types: long (femur), short (carpals), flat (sternum), irregular (vertebrae) and sesamoid (patella). Bone structure: periosteum, compact (cortical) bone, cancellous (trabecular) bone, medullary cavity and bone marrow. Joint types: fibrous (sutures), cartilaginous (symphysis pubis), synovial (knee, shoulder) — the most mobile. Synovial joint components: articular cartilage, joint capsule, synovial membrane, synovial fluid, ligaments and bursae. Muscle contraction follows the sliding filament theory (actin and myosin). Major movement groups: flexors, extensors, abductors, adductors, internal and external rotators.
🚨 Musculoskeletal red flags — escalate immediately
- Acute compartment syndrome — pain out of proportion, pain on passive stretch, paraesthesia, pallor, paralysis, pulselessness (late) after fracture, crush or tight cast; surgical emergency requiring fasciotomy
- Open (compound) fracture — bone exposed to environment; risk of osteomyelitis. Cover with sterile saline-soaked gauze, give IV antibiotics & tetanus prophylaxis early, urgent orthopaedic review
- Cauda equina syndrome — low back pain with bilateral sciatica, saddle anaesthesia, urinary retention or faecal incontinence; emergency MRI and decompression
- Septic arthritis / native joint infection — hot, swollen, exquisitely tender joint with fever, inability to bear weight; aspirate before antibiotics where possible
- Spinal cord or metastatic spinal cord compression — progressive weakness, sensory level, bowel/bladder change; treat as oncological emergency in known malignancy
- Cervical spine injury — high-energy trauma, neck pain, focal neurology; maintain in-line immobilisation and apply Canadian C-spine / NEXUS criteria
- Major haemorrhage from pelvic or long-bone fracture — hypotension, tachycardia; activate massive transfusion protocol and consider pelvic binder
Rapid Assessment Pathways
Acute Injury / Trauma
- Mechanism, energy and direction of force
- Pain, swelling, deformity, inability to bear weight or use limb
- Neurovascular status distal to injury (6 Ps + capillary refill)
- X-ray (≥ 2 views); CT for complex / intra-articular fractures
- Reduce, immobilise, ice, elevate, multimodal analgesia, VTE risk-assess
Joint Pain / Swelling
- Onset: acute vs chronic, traumatic vs atraumatic
- Inflammatory signs: redness, warmth, effusion, fever
- Stiffness pattern: morning > 30 min suggests inflammatory
- Joint aspiration if effusion: cell count, crystals, Gram stain, culture
- Differential: OA, RA, spondyloarthritis, gout, pseudogout, septic arthritis
Muscle Weakness / Atrophy
- Distribution: proximal vs distal, symmetric vs asymmetric
- Associated pain, sensory changes, fasciculations, fatigability
- Manual muscle testing on MRC 0–5 scale
- CK, TSH, vitamin D, EMG/NCS, muscle biopsy if indicated
- Differential: myopathy, neuropathy, motor neuron disease, disuse
Low Back Pain
- Red flags: age > 50 with new pain, fever, weight loss, cancer history, IVDU, night pain, saddle anaesthesia, bladder/bowel change
- Radicular features: dermatomal pain, straight leg raise < 60°
- Imaging (MRI) only if red flags or progressive deficit
- Conservative care for non-specific mechanical pain (stay active)
- Multimodal analgesia, education, structured exercise, work-modification
Musculoskeletal Symptoms
Common Conditions
Nursing Procedures
Diagnostic Tests
Musculoskeletal Medications
Related Body Systems
▶ References & Guidelines
- World Health Organization (WHO). Musculoskeletal health fact sheet · Osteoporosis · Low back pain.
- National Institute for Health and Care Excellence (NICE, UK). Musculoskeletal conditions guidance (low back pain & sciatica NG59, OA NG226, RA NG100, fractures NG38).
- European Alliance of Associations for Rheumatology (EULAR). Clinical recommendations for RA, axial SpA, OA, gout and inflammatory arthritis.
- American College of Rheumatology (ACR). Clinical practice guidelines on RA, OA, gout, axial SpA and reproductive health in rheumatic disease.
- International Osteoporosis Foundation (IOF). Capture the Fracture & FRAX resources — fragility fracture prevention worldwide.
- AO Foundation / AO Trauma. AO surgical reference — global standard for fracture classification and management.
- British Orthopaedic Association (BOA). BOAST standards for fracture care, open fractures and compartment syndrome.
- American Academy of Orthopaedic Surgeons (AAOS). Clinical practice guidelines.
- Global Burden of Disease Study (IHME / The Lancet). Worldwide epidemiology of MSK disorders.
- Royal College of Nursing (RCN, UK) & International Council of Nurses (ICN). Clinical practice resources for orthopaedic and trauma nursing.
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