Common musculoskeletal presentations in children
Exam Tips
- In OSCEs, start with pGALS and gait observation before focused regional examination.
- Differentiate physiological from pathological by pattern: symmetrical + painless + normal function usually benign; asymmetry, pain, limp, stiffness, or systemic features are concerning.
- Growing pains are classically evening/night, bilateral, extra-articular, normal exam, and absent on waking.
- Flexible flat foot is usually benign if arch appears on tiptoe and there are no neurological or inflammatory signs.
- For paediatric back pain, preschool age, persistent night pain, neurological deficit, fever, weight loss, or bladder/bowel symptoms are red flags requiring urgent escalation.
- State clear safety-netting: worsening pain, persistent limp/non-weight-bearing, fever, night pain, or new neurological symptoms should trigger immediate reassessment.
Definition
Common musculoskeletal presentations in children are a group of symptoms and alignment concerns (for example limb pain, back pain, flat feet, bow legs, heel pain, and perceived clumsiness) seen frequently in primary care and paediatric clinics. Most are normal developmental variants or self-limiting overuse syndromes, but safe practice requires structured assessment to identify red flags for infection, inflammatory disease, malignancy, neuromuscular pathology, or structural orthopaedic disease that need urgent referral.
Pathophysiology
Paediatric musculoskeletal complaints sit on a spectrum from physiological development to true pathology. Normal developmental biomechanics include infant genu varum (bow legs), flexible pes planus from plantar fat pad/ligamentous laxity, and age-related rotational profile changes; these often improve as bone modelling, gait maturation, and neuromuscular control progress. Overuse conditions (for example calcaneal apophysitis/Sever disease) occur at growth plates where repetitive traction (Achilles pull on the calcaneal apophysis) causes pain and local inflammation. By contrast, inflammatory (JIA/enthesitis-related disease), infective (osteomyelitis/discitis/septic arthritis), neoplastic (leukaemia, bone tumours), and structural disorders (Blount disease, spondylolysis/spondylolisthesis, SCFE) cause symptoms through synovial inflammation, bone marrow/cortical involvement, instability, or growth disturbance. See Figure from page X (paediatric lower-limb alignment by age) and Figure from page X (open apophysis and traction injury mechanism) in your core paediatric orthopaedics text.
Risk Factors
- Age-related developmental stage (toddlers with physiological bowing/flat feet; adolescents with non-specific back pain)
- Rapid growth and high-impact sport (risk of Sever disease, overuse injury)
- Obesity (association with persistent flat feet and Blount disease)
- Generalised joint hypermobility or connective tissue disorders (for example hypermobile EDS spectrum)
- Family history of hypermobility, flat feet, or similar benign pain syndromes
- Neurodevelopmental conditions (for example developmental coordination disorder, ADHD, autism co-occurrence)
- Recent infection, immunosuppression, or penetrating injury (infection risk)
- Systemic red-flag context (night pain, weight loss, fever, malignancy history)
Clinical Features
Symptoms
- Intermittent bilateral leg pains in evening/night with pain-free days and normal morning function (typical of benign growing pains pattern)
- Activity-related posterior heel pain in 8-15 year olds, improved by rest (typical of Sever disease)
- Mechanical low back pain without systemic upset in school-age children/adolescents
- Parental concern about gait/alignment: bow legs, in-toeing/out-toeing, flat feet, or clumsiness
- Footwear discomfort or toe rubbing with persistent curly/underlapping toes
- Red-flag symptoms: constant/progressive pain, night waking with persistent morning pain, limp/non-weight-bearing, fever, weight loss, neurological symptoms, bladder/bowel disturbance
Signs
- Physiological variants are usually symmetrical, painless, and with normal joint examination and neurovascular status
- Flexible flat foot: arch reconstitutes on tiptoe; no fixed deformity
- Sever disease: local posterior calcaneal tenderness, pain on squeeze or heel loading, tight gastrocnemius-soleus complex
- Normal pGALS in benign conditions (no active synovitis, no muscle weakness pattern, no focal neurology)
- Abnormal findings prompting urgent action: joint warmth/swelling, spinal tenderness/deformity, asymmetry, restricted range, persistent limp, focal bony tenderness, weakness, hyperreflexia, or ataxia
Investigations
Management
Lifestyle Modifications
- Reassure and safety-net when features are typical of physiological/self-limiting conditions
- Activity modification (relative rest from pain-provoking sport), then graded return
- Stretching programme (especially calf/Achilles for heel pain), supportive footwear, and heel cups/orthoses when symptomatic
- Parent education on normal developmental alignment timelines (for example bow legs and flexible flat feet often improve with age)
- Use pGALS and planned review to detect evolution of red flags
- Prompt referral pathways: same day for suspected septic arthritis, cauda equina/spinal cord compression, malignancy, or non-accidental injury concerns
Pharmacological Treatment
Simple analgesic
- Paracetamol oral: 15 mg/kg per dose every 4-6 hours when required (max 4 doses in 24 hours; do not exceed age/weight-based BNF maximum)
Check all combination products to avoid accidental paracetamol overdose; adjust dosing interval in hepatic impairment and seek senior advice if underweight/chronic disease.
NSAID
- Ibuprofen oral: 5-10 mg/kg per dose every 6-8 hours (maximum 30 mg/kg/day; usual adolescent/adult max 2.4 g/day)
Avoid in dehydration, significant renal impairment, active GI ulceration/bleeding, and known NSAID hypersensitivity (including aspirin-sensitive asthma). Use caution in varicella because of severe skin/soft tissue infection risk.
Condition-specific anti-inflammatory therapy (specialist-led)
- Naproxen for inflammatory arthropathy (for example JIA) using BNFc age/weight dosing in specialist care
Not first-line for undifferentiated benign pain in primary care; initiate after diagnostic clarification and monitoring plan.
Surgical / Interventional
- Usually not required for physiological variants
- Orthopaedic intervention when persistent symptomatic deformity or pathological cause identified (for example guided growth/corrective osteotomy for Blount disease)
- Flexor tenotomy or corrective toe procedure for painful persistent curly toes affecting footwear/function
- Procedure directed at structural pathology (for example unstable spondylolisthesis, tumour biopsy/excision, abscess drainage) under specialist teams
Complications
- Missed serious disease (sepsis, malignancy, inflammatory arthritis, spinal pathology) from false reassurance
- Chronic pain, deconditioning, school absence, and reduced participation in sport
- Progressive deformity or gait dysfunction in untreated pathological alignment disorders
- Psychological impact (anxiety, low confidence) in children labelled as 'clumsy' without support
- Medication-related harm (paracetamol overdose; NSAID renal/GI/bronchospasm adverse effects)
Prognosis
Overall prognosis is excellent because most childhood musculoskeletal presentations are benign and settle with time, reassurance, and simple conservative measures. Outcomes depend on early recognition of red flags: timely referral for infection, inflammatory disease, structural pathology, or malignancy markedly improves long-term function and reduces morbidity.
Sources & References
✅NICE Guidelines(1)
📖Textbook References(12)
- David Randall PhD MRCP (Editor), John Booth PhD MRCP (Editor), K - Kumar and Clark's Clinical Medicine (2025, American Elsevier Publishing Co.) - libgen.li.pdf(pp. 1416)[context]
- David Randall PhD MRCP (Editor), John Booth PhD MRCP (Editor), K - Kumar and Clark's Clinical Medicine (2025, American Elsevier Publishing Co.) - libgen.li.pdf(pp. 145)[context]
- David Randall PhD MRCP (Editor), John Booth PhD MRCP (Editor), K - Kumar and Clark's Clinical Medicine (2025, American Elsevier Publishing Co.) - libgen.li.pdf(pp. 146)[context]
- David Randall PhD MRCP (Editor), John Booth PhD MRCP (Editor), K - Kumar and Clark's Clinical Medicine (2025, American Elsevier Publishing Co.) - libgen.li.pdf(pp. 396)[context]
- David Randall PhD MRCP (Editor), John Booth PhD MRCP (Editor), K - Kumar and Clark's Clinical Medicine (2025, American Elsevier Publishing Co.) - libgen.li.pdf(pp. 1147)[context]
- David Randall PhD MRCP (Editor), John Booth PhD MRCP (Editor), K - Kumar and Clark's Clinical Medicine (2025, American Elsevier Publishing Co.) - libgen.li.pdf(pp. 1054)[context]
- Guyton and Hall Textbook of Medical Physiology (John E. Hall, Michael E. Hall) (Z-Library).pdf(pp. 934)[context]
- Guyton and Hall Textbook of Medical Physiology (John E. Hall, Michael E. Hall) (Z-Library).pdf(pp. 934)[context]
- Oxford Handbook of Clinical Diagnosis (Huw Llewelyn, Hock Aun Ang, Keir Lewis etc.) (Z-Library).pdf(pp. 345, 346)[context]
- Oxford Handbook of Clinical Diagnosis (Huw Llewelyn, Hock Aun Ang, Keir Lewis etc.) (Z-Library).pdf(pp. 356, 357)[context]
- [Oxford Medical Handbooks] Ian Wilkinson, Tim Raine, Kate Wiles, Anna Goodhart, Catriona Ha - Oxford Handbook of Clinical Medicine (2017, Oxford University Press) - libgen.li.pdf(pp. 304, 305)[context]
- [Williams, Bailey and Love's Short Practice of Surgery] Norman Williams, Christopher Bulstrode, P Ronan O'Connell - Bailey & Love's Short Practice of Surgery 26E (2013, CRC Press) - libgen.li.pdf(pp. 1113)[context]