Slipped capital femoral epiphysis: Difference between revisions
No edit summary |
No edit summary |
||
| Line 1: | Line 1: | ||
==Background== | ==Background== | ||
*head of femur displaces from epiphysis due to loss of mechanical integrity at the growth plate | |||
*head of femur remains in acetabulum & femoral neck rotates anter | |||
*may be seen in under 9, although uncommon (must investigate endocrinopathies in this subset) | |||
*d/t slip of proximal femoral epiphysis post & inf on the metaphysis thru physeal plate during growth spurt | |||
*20% - 25% rate of opp hip involvement - 2/3 present at same time | |||
*(33% - mild, 34-50 % mod. )50%-sev | |||
===Risk Factors=== | |||
#obesity | |||
#African American | |||
#male - female (2:1) | |||
#during growth spurt (m=13y f=11y) | |||
- | |||
== | |||
==Diagnosis== | ==Diagnosis== | ||
Age - 9 to 16 yrs | Age - 9 to 16 yrs | ||
| Line 20: | Line 20: | ||
Labs - normal | Labs - normal | ||
==Workup== | |||
Xray - Anterior displacement of femoral neck to head | Xray - Anterior displacement of femoral neck to head | ||
*Loenstein (frog leg) view & AP views | |||
*Kleines Line - line from sup cortex of femoral neck parallel to greater trochanter, nl= should cross thru 1/3 of fem head, scfe does'nt. | |||
*X - ray - early - widened physis (B4 actual slip) if not sure do bone scan | |||
Presentation | ===Presentation=== | ||
# acute, chronic or acute on chronic slippage. | |||
# pts tend to be overweight | |||
# limited range of motion on int rot Xrays | |||
# widened epiphyseal plate & displacement of femoral neck to head. | |||
# complications include jt space narrowing, arthritis & avascular necrosis of hip. | |||
- | ===PE=== | ||
rest - foot ext rotated, hip abducted & sl flexed to decr press. hip= decr int. Rotation, abduction, flexion on PE, waddling gate. Whitman's sign= get abduction & ext. Rotation of hip w/ flexion of knee. | |||
==DDx== | ==DDx== | ||
See [[Hip Pain]] | |||
See | |||
==Treatment== | ==Treatment== | ||
#Internal fixation | |||
#non wt bearing | |||
==Disposition== | |||
Admit for Ortho to pin b/c of risk of avascular necrosis w/o rx | |||
[[Category:Peds]] | |||
[[Category:Ortho]] | |||
[[Category:Peds]] [[Category:Ortho]] | |||
Revision as of 02:20, 9 June 2011
Background
- head of femur displaces from epiphysis due to loss of mechanical integrity at the growth plate
- head of femur remains in acetabulum & femoral neck rotates anter
- may be seen in under 9, although uncommon (must investigate endocrinopathies in this subset)
- d/t slip of proximal femoral epiphysis post & inf on the metaphysis thru physeal plate during growth spurt
- 20% - 25% rate of opp hip involvement - 2/3 present at same time
- (33% - mild, 34-50 % mod. )50%-sev
Risk Factors
- obesity
- African American
- male - female (2:1)
- during growth spurt (m=13y f=11y)
Diagnosis
Age - 9 to 16 yrs
Present - mild to severe pain, limp
Labs - normal
Workup
Xray - Anterior displacement of femoral neck to head
- Loenstein (frog leg) view & AP views
- Kleines Line - line from sup cortex of femoral neck parallel to greater trochanter, nl= should cross thru 1/3 of fem head, scfe does'nt.
- X - ray - early - widened physis (B4 actual slip) if not sure do bone scan
Presentation
- acute, chronic or acute on chronic slippage.
- pts tend to be overweight
- limited range of motion on int rot Xrays
- widened epiphyseal plate & displacement of femoral neck to head.
- complications include jt space narrowing, arthritis & avascular necrosis of hip.
PE
rest - foot ext rotated, hip abducted & sl flexed to decr press. hip= decr int. Rotation, abduction, flexion on PE, waddling gate. Whitman's sign= get abduction & ext. Rotation of hip w/ flexion of knee.
DDx
See Hip Pain
Treatment
- Internal fixation
- non wt bearing
Disposition
Admit for Ortho to pin b/c of risk of avascular necrosis w/o rx
