Hip pain / limp - children

• Painful Hips in Children (Patient.info), Limp in children (NHS Choices), Acute childhood limp (CKS)

Developmental dysplasia of the hip

• Developmental dysplasia of the hip (NHS Choices), Developmental Dysplasia of the Hip (patient.info), Steps (Steps Charity UK), Irritable hip: Irritable hip (NHS Choices)

Perthes' disease

• Perthes' disease (patient.info), Perthes' disease (BMJ, 2014)

Knee pain: (differential diagnosis children/adolescents <18Y)

• Patellofemoral pain (usually adolescents); Osgood-Schlatter's disease / Sinding–Larsen Johansson syndrome; referred pain from hip (e.g. slipped capital femoral epiphysis); hypermobility syndrome; growing pains; patellar subluxation/instability; osteochondritis dissecans; osteomyelitis and septic arthitis; tumours; patellar tendonitis; discoid lateral meniscus)

Osgood-Schlatter disease

• Osgood-Schlatter disease (CKS), Osgood-Schlatter disease (Patient.info)

Osteochondritis dissecans

• Osteochondritis dissecans (Patient.info)

Rheumatoid arthritis (RA) / Still's disease

• Rheumatoid arthritis (NHS Choices), Rheumatoid arthritis (CKS), Rheumatoid arthritis and Still's disease (PCDS)​, Rheumatoid arthritis (Lancet series)