Approach to a child with
arthritis
Dr.Singaram.A
Arthritis vs Arthralgia
• Arthralgia – symptom; pain in the joint
• Arthritis – sign; intra-articular swelling or
2 or more of:
 Limitation of range of motion;
 Tenderness or pain on motion
 Increased temperature or erythema
Differential diagnosis of childhood
joint pain or swelling
•
•
•
•
•
•
•
•
•

Avascular necrosis and epiphyseal disorders
Reactive and postinfectious arthritis
Trauma: Accidental and nonaccidental
Hematologic
Rheumatological
Infection
Tumor
Idiopathic pain syndromes
Systemic diseases
Tender points - Fibromyalgia
Types of Joint Pain
History

Inflammatory

Mechanical

Sinister

Onset

Insiduous

Sudden

Insiduous

Course

Fluctuant

Persistent

Persistent

Relation to time

More in morning More in evening

No relation

Relation to
activity

Improves

worsens

Worsens

Example

JIA

SCFE

Malignancy
Arthritis – Basic Approach
• Onset : Acute (< 6 weeks) or chronic
• No. of joints involved

• Type of joints
• Associated systemic features
• Precipitating factors
Some important clues…
• Inflammed/infected joint assumes a
characteristic posture
• Wasting of muscles in chronic joint involvement
• Referred pain
• Swollen joints and enlarged lymph nodes
Review of systems
Gottron's papules
Evanescent pink macular rash

HSP

Lower extremity purpuric lesions

Oligoarthritis or psoriatic JIA

Asymptomatic chronic anterior
uveitis

Enthesitis related arthritis

Acute symptomatic uveitis (pain,
redness)

Kawasaki disease

Conjunctival injection without
discharge

Sjogren's syndrome

Oral

Malar rash and hair loss

Systemic JIA

Ophthalmologic

SLE
Dermatomyositis

Dermatologic

Dry eyes with keratitis

SLE

Painless oral ulcers on palate

Behcet Disease

Large extremely painful oral ulcers
Review of systems
Pericarditis
Raynaud phenomenon

Takayasu arteritis

Absent pulses

IBD, SLE, or vasculitis

Weight loss or poor growth

IBD

Diarrhea and abdominal pain

Reactive arthritis

Preceding infectious
gastroenteritis

HSP

Genitourinary

New heart murmur

SLE or scleroderma

Gastrointestinal

ARF or endocarditis
SLE, systemic JIA, or ARF

Cardiovascular

Intermittent colicky abdominal pain

Gonococcal arthritis

Pustular urethritis or cervicitis

Reactive arthritis

Non-gonococcal urethritis

Behcet disease or IBD

Large painful genital ulcerations
Review of systems
Hemolytic anemia

Pancytopenia

Bleeding disorders

Neurologic

SLE or hemoglobinopathy
(eg, SCD)
SLE

Hematologic

Hemarthrosis

SLE

Seizures and psychosis

SLE or fibromyalgia

Difficulty concentrating

SLE, vasculitis, or
hypercoagulability

Stroke

Vasculitis

Asymmetric polyneuropathy

Dermatomyositis and
polymyositis

Proximal muscle weakness
Common clinical presentations
• Acute monoarthritis
- Sick child (+/- fever)
- Well child (+/- trauma)

• Chronic monoarthritis
- Sick child
- Well child

• Polyarthritis
- Acute
- Chronic
Acute monoarthritis
Sick Child

Fever

Yes
Septic arthritis
Reactive arthritis
Kawasaki disease
Malignancy
SOJIA

No
Partially treated sepsis
Malignancy
Connective tissue
disorders
Acute monoarthritis
Well
child
Significant
trauma

Yes

No

Fractures

Bleeding disorders

Mechanical
derangements

Neoplasm
JIA
Synovial fluid analysis
• Hemorrhagic – Hemarthrosis, PVS
• 1500 – 50,000 cells/ cu.mmInflammatory/reactive arthritis
• >50,000 cells/ cu.mm – septic arthritis
Chronic monoarthritis
Chronic monoarthritis

Sick child

Well child

Partially treated

Oligoarticular JIA

Septic arthritis
Reactive arthritis

Enthesitis related/psoriatic
arthritis

Systemic onset JIA

Mechanical

SLE
Acute polyarthritis
•
•
•
•
•
•
•

Acute rheumatic fever
Infective endocarditis
Viral arthritis
Lyme disease
Kawasaki disease
HSP
PSRA
Chronic polyarthritis
• Systemic onset/ Polyarticular JIA
• SLE
• Juvenile Dermatomyositis
• SLE/ PAN
• Other inflammatory arthritis
Systemic onset JIA

Pauciarticular onset
JIA
50

Polyarticular onset
JIA
30 to 40
F>M
peaks 2 to 5, 10 to 14
years
any, rare to start in hip

Percent of JIA patients

10 to 15

Sex
Age

F=M
any <17 years

Joints

any

Fever, rash,
lymphadenopathy,
hepatosplenomegaly
Uveitis

yes

F>M
peak 2 to 3 years, rare
>10
large joints, but rarely
hips
no

rare

20 percent, esp ANA +

less frequent

Laboratory abnormalities
- Leukocytosis
marked
- Anemia
marked
- Elevated ESR
marked
- ANA
absent

no
no
mild
low titer common

- Rheumatoid factor

rare

absent

Destructive arthritis
Disease modifying
drugs

>50 percent
commonly used

rare
rarely used

no
mild
mild
low titer common in
younger
10 to 20 percent in
those >10 years
>50 percent
commonly used

no
Approach arthritis in childhood

Approach arthritis in childhood

  • 1.
    Approach to achild with arthritis Dr.Singaram.A
  • 2.
    Arthritis vs Arthralgia •Arthralgia – symptom; pain in the joint • Arthritis – sign; intra-articular swelling or 2 or more of:  Limitation of range of motion;  Tenderness or pain on motion  Increased temperature or erythema
  • 3.
    Differential diagnosis ofchildhood joint pain or swelling • • • • • • • • • Avascular necrosis and epiphyseal disorders Reactive and postinfectious arthritis Trauma: Accidental and nonaccidental Hematologic Rheumatological Infection Tumor Idiopathic pain syndromes Systemic diseases
  • 4.
    Tender points -Fibromyalgia
  • 5.
    Types of JointPain History Inflammatory Mechanical Sinister Onset Insiduous Sudden Insiduous Course Fluctuant Persistent Persistent Relation to time More in morning More in evening No relation Relation to activity Improves worsens Worsens Example JIA SCFE Malignancy
  • 6.
    Arthritis – BasicApproach • Onset : Acute (< 6 weeks) or chronic • No. of joints involved • Type of joints • Associated systemic features • Precipitating factors
  • 7.
    Some important clues… •Inflammed/infected joint assumes a characteristic posture • Wasting of muscles in chronic joint involvement • Referred pain • Swollen joints and enlarged lymph nodes
  • 8.
    Review of systems Gottron'spapules Evanescent pink macular rash HSP Lower extremity purpuric lesions Oligoarthritis or psoriatic JIA Asymptomatic chronic anterior uveitis Enthesitis related arthritis Acute symptomatic uveitis (pain, redness) Kawasaki disease Conjunctival injection without discharge Sjogren's syndrome Oral Malar rash and hair loss Systemic JIA Ophthalmologic SLE Dermatomyositis Dermatologic Dry eyes with keratitis SLE Painless oral ulcers on palate Behcet Disease Large extremely painful oral ulcers
  • 9.
    Review of systems Pericarditis Raynaudphenomenon Takayasu arteritis Absent pulses IBD, SLE, or vasculitis Weight loss or poor growth IBD Diarrhea and abdominal pain Reactive arthritis Preceding infectious gastroenteritis HSP Genitourinary New heart murmur SLE or scleroderma Gastrointestinal ARF or endocarditis SLE, systemic JIA, or ARF Cardiovascular Intermittent colicky abdominal pain Gonococcal arthritis Pustular urethritis or cervicitis Reactive arthritis Non-gonococcal urethritis Behcet disease or IBD Large painful genital ulcerations
  • 10.
    Review of systems Hemolyticanemia Pancytopenia Bleeding disorders Neurologic SLE or hemoglobinopathy (eg, SCD) SLE Hematologic Hemarthrosis SLE Seizures and psychosis SLE or fibromyalgia Difficulty concentrating SLE, vasculitis, or hypercoagulability Stroke Vasculitis Asymmetric polyneuropathy Dermatomyositis and polymyositis Proximal muscle weakness
  • 11.
    Common clinical presentations •Acute monoarthritis - Sick child (+/- fever) - Well child (+/- trauma) • Chronic monoarthritis - Sick child - Well child • Polyarthritis - Acute - Chronic
  • 12.
    Acute monoarthritis Sick Child Fever Yes Septicarthritis Reactive arthritis Kawasaki disease Malignancy SOJIA No Partially treated sepsis Malignancy Connective tissue disorders
  • 13.
  • 14.
    Synovial fluid analysis •Hemorrhagic – Hemarthrosis, PVS • 1500 – 50,000 cells/ cu.mmInflammatory/reactive arthritis • >50,000 cells/ cu.mm – septic arthritis
  • 15.
    Chronic monoarthritis Chronic monoarthritis Sickchild Well child Partially treated Oligoarticular JIA Septic arthritis Reactive arthritis Enthesitis related/psoriatic arthritis Systemic onset JIA Mechanical SLE
  • 16.
    Acute polyarthritis • • • • • • • Acute rheumaticfever Infective endocarditis Viral arthritis Lyme disease Kawasaki disease HSP PSRA
  • 17.
    Chronic polyarthritis • Systemiconset/ Polyarticular JIA • SLE • Juvenile Dermatomyositis • SLE/ PAN • Other inflammatory arthritis
  • 18.
    Systemic onset JIA Pauciarticularonset JIA 50 Polyarticular onset JIA 30 to 40 F>M peaks 2 to 5, 10 to 14 years any, rare to start in hip Percent of JIA patients 10 to 15 Sex Age F=M any <17 years Joints any Fever, rash, lymphadenopathy, hepatosplenomegaly Uveitis yes F>M peak 2 to 3 years, rare >10 large joints, but rarely hips no rare 20 percent, esp ANA + less frequent Laboratory abnormalities - Leukocytosis marked - Anemia marked - Elevated ESR marked - ANA absent no no mild low titer common - Rheumatoid factor rare absent Destructive arthritis Disease modifying drugs >50 percent commonly used rare rarely used no mild mild low titer common in younger 10 to 20 percent in those >10 years >50 percent commonly used no