Perthes Disease Flashcards
Typical Presentation of Perthes Disease
Male Primary School Short Limp Knee Pain on exercise stiff hip generally well
Aetiology of DDH
Avascular Necrosis of Hip
Presentation on x-ray of DDH/Perthes
Small Sclerotic Epiphysis
Prognosis for Perthes
The nearer the head is to round, the better the outlook (Stulberg)
Treatment for Perthes
Splint
Physio
Analgesia
SUFE Presentation
Groin Pain Short External Rotate Painful to Weight Bear More in Boys Overweight
Prognosis is good in SUFE when able to
weight bear
SUFE Detection
Pain in Hip or knee
external rotate posture and gait
reduced internal rotation esp flexion
x rays in sufe best seen in
lateral view
SUFE on X-Ray
Mild
<1/3
SUFE on x ray Moderate
1/3-1/2
SUFE on x ray Severe
> 1/2
SUFE on pathology shows
displacement through hypertrophic zone
metaphysis moves ant and proximal
what happens to identify SUFE on AP film
Klein Line
Trethowan sign
SUFE can lead to
Impingement Limb Length Discrepancy Early Osteoarthritis Chondrolysis AVN