Locomotor, Nutrition, Developmental problems Flashcards
(126 cards)
Kocher criteria for Septic arthritis
WCC>12000
ESR/CRP elevated
Non-Wx bearing
Temp>38
ALL 4= 99% Septic Arthritis
Epidemiology of septic arthritis
50% in first 2 years of life
2x more common in Boys
Underlying joint disease or prosthetic joints or bacteraemia increase risk
Presentation of septic arthritis
Likely < 3 years old 75% Lower limb (Knees>Hip>Ankle) Acute, hot swollen joint Pain on passive movement Pseudoparalysis Cannot weight bear Systemic symptoms
Diagnosis of septic arthritis
Joint aspiration under GA + USS guided
Then Gram stain and culture of synovial fluid
+/- FBC, ESR, CRP, Blood cultures
X-ray findings in septic arthritis
Initially normal +/- Widened joint spaces B/C effusion
Later will have space narrowing, erosive changes, subluxation, dislocation
Management of septic arthritis
Abx after aspiration
-IV up to 3/52 followed by oral for 4-6/52
Surgical involvement if recurrent or affecting hip
Splintage improves pain
Physio to avoid stiffness
Indications for a LP in septic arthritis
If H.Influ then do an LP as there is increased incidence of meningitis
What is developmental dysplasia of the hip
Abnormal formation of the hip joint where there is a shallow acetabulum that doesn’t cover the femoral head sufficiently
Risk Factors for DDH
FEMALE (6X more likely) Breech delivery FHx 1st born Oligohydramnios Other joint problems High birth Wx
Screening for DDH
1st day- Hips examined
6 weeks USS
How are Breech babies screened for DDH
All have USS
Same if 1st degree relative with DDH
Presentation of DDH
From birth or shortly after
Delay in walking
Waddling gait (like a pregnant lady)
Shortened affected leg
Barlow and Ortolani tests
Tests for DDH
Barlow- Press hips posteriorly when flexed to attempt to dislocate
Ortolani- Hips flexed and then abducted to try and relocate the dislocated hip
Management of DDH
Most spontaneously stabilise at 3-6 weeks therefore use double nappies until this point
No success + <6 months= Bracing with Pavlik harness for 3/12
Then consider surgery if above fails
Complications of DDH
OA, Lower back pain
Also a risk of re-dislocation and/or avascular necrosis
Commonest cause of hip pain in 3-10 years
Reactive arthritis/Irritable hip
Presentation of irritable hip/reactive arthritis
Slight limp and hip pain Hx viral infection No systemic symptoms Likely single joint No pain at rest but pain O/E
What features would likely indicate septic arthritis over reactive arthritis in a child with limp
Systemically unwell Fever Night pain and pain on rest Cannot Wx bear > 2 weeks Very elevated inflammatory markers
When would you discharge a child with reactive arthritis?
Non-dramatic physical signs
X-rays and bloods normal
Advise NSAIDS and rest
Reiter’s syndrome
Form of reactive arthritis
“Cant see, can’t wee, can’t climb a tree”
Uveitis, urethritis and arthritis
Classification of JIA
Objective arthritis in >/= 1 joint for at least 6 weeks \+/- Swelling, warmth, reduced movement < 16 years Nil other cause found Most common in girls under 4 years
Oligoarticular/Pauarticular JIA vs Polyarticular JIA vs Still’s disease
Oligo/Pau= Up to 4 joints affected. Most common. Poly= >4 joints affected Still's= Systemic onset JIA
Presentation of JIA
Joints- Painful, swollen, stiff on mornings, cartilage erosion
Walk on toes
Hepato/Splenomegaly
Still’s= + Fever, salmon-pink rash, Uveitis, Wx loss, Anorexia
Likely Blood result changes in Still’s disease
Leukocytes, ESR, CRP and platelets can be raised
HB can be low
Can be similar in non-systemic JIA