Septic arthritis of the hip (peds): Difference between revisions
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==Background== | ==Background== | ||
*Age - 6 mo to 8 yrs | |||
*Hematogenous spread or local infection | *Hematogenous spread or local infection | ||
*[[Staph]], [[S. Pneumo]], [[group A strep]] | *[[Staph]], [[S. Pneumo]], [[group A strep]] | ||
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==Clinical Features== | ==Clinical Features== | ||
* | *[[Hip pain (peds)|Pain]], pseudoparalysis | ||
*May present with referred knee or thigh pain | *May present with referred knee or thigh pain | ||
*Usually hold joint in flexion, external rotation and slight abduction | *Usually hold joint in flexion, external rotation and slight abduction | ||
Line 15: | Line 15: | ||
==Evaluation== | ==Evaluation== | ||
===Workup=== | ===Workup=== | ||
*Labs - ESR > 20 | *Labs - ESR >20, WBC >12 | ||
* | *Blood cultures (40-50% grow out) | ||
*Xrays | *Xrays | ||
**useful to exclude other cause of joint pain (AP & Frog leg) | **useful to exclude other cause of joint pain (AP & Frog leg) | ||
**possible effusion | **possible effusion | ||
*Consider: | *Consider: | ||
**Ultrasound to evaluate for effusion | **[[musculoskeletal ultrasound|Ultrasound]] to evaluate for effusion | ||
**CT to evaluate for abscess | **CT to evaluate for [[abscess]] | ||
{{Kocher criteria}} | {{Kocher criteria}} | ||
Line 33: | Line 33: | ||
==Disposition== | ==Disposition== | ||
* | *Admit | ||
==External Links== | ==External Links== | ||
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==See Also== | ==See Also== | ||
*[[Hip Pain (Peds)]] | *[[Hip Pain (Peds)]] | ||
*[[Septic Arthritis (Peds)]] | *[[Septic Arthritis (Peds)]] | ||
*[[ | *[[Limp (peds)]] | ||
==References== | |||
<references/> | |||
[[Category:Pediatrics]] | [[Category:Pediatrics]] | ||
[[Category:Orthopedics]] | [[Category:Orthopedics]] | ||
[[Category:ID]] |
Latest revision as of 20:34, 6 October 2019
Background
- Age - 6 mo to 8 yrs
- Hematogenous spread or local infection
- Staph, S. Pneumo, group A strep
- Neonates: also Group B strep and gram negatives
Clinical Features
- Pain, pseudoparalysis
- May present with referred knee or thigh pain
- Usually hold joint in flexion, external rotation and slight abduction
Differential Diagnosis
Pediatric hip pain
- Acute rheumatic fever
- Developmental dysplasia of hip
- Femur fracture
- Juvenile idiopathic arthritis
- Legg-Calve-Perthes disease
- Septic arthritis of the hip (peds)
- Lyme disease arthritis
- Slipped capital femoral epiphysis
- Transient (toxic) synovitis
- Osteosarcoma
Evaluation
Workup
- Labs - ESR >20, WBC >12
- Blood cultures (40-50% grow out)
- Xrays
- useful to exclude other cause of joint pain (AP & Frog leg)
- possible effusion
- Consider:
- Ultrasound to evaluate for effusion
- CT to evaluate for abscess
Kocher Criteria for septic arthritis of the hip
- ESR > 40 mm/hr
- WBC > 12,000/microliter
- Refusal or inability to weight bear on affected joint
- Fever 38.5° C or greater
Number of Kocher Criteria | Chance of Septic Joint |
1 | 3% |
2 | 40% |
3 | 93% |
4 | 99% |
Management
- OR drainage
- IV antibiotics x 10-14 days (before po)
- Oxacillin, Nafcillin or Clindamycin in penicillin allergic
- Cover Haemophilus influenzae as needed with 3rd generation cephalosporin
Disposition
- Admit