POP
BY Dr.TSEDALE M(MI)
MODULATOR DR.TADESSE (ORTHOPEDIC
SURGEON)

OUT LINE
 HISTORICAL BACK GROUND
 USES OF POP
 CLASIFICATION
 STEPS IN APLICATION
 AFTERCARE
 COMPLICATION

INTRODUCTION
History of plaster of Paris
• The name derived from an accident to a house built with
adeposit of gypsum ,near Paris .
• Frist used by duchy military surgeon in1852
• What is pop? hemihydrate calcium
sulphate(Caso41/2H2O)
• What is setting it is the process by which pop irreversible
changed its structure setting starts at 3-10 minute of
mixing and complete in 45

Use of cast
To support fracture bone
To stabilize joint and ligament injury
To correct deformity
To support immobilized joint and limb after post op

Classification
Based on application
Slap -partial circumfrance
Cast-full circumference
Spica-trunk and limb

Steps in application
Examination
Surgeon should examine the fractursite and evalute neuro
vascular status an review x-ray
 Prepare the requred layer 8-12 uppr extemity
12-16 lower extrimity
One joint above and one joint below
Not to lose and not tonight

• Consolidate the layer of the swab
• Cotton wool interposed b/n skin and plaster
• Use plaster
• Apply bandage
Reduction
• Final manipulation done until the plaster harden

Common slab
Short arm slab
• indication
• Wrist
• Metacarpal and colles fracture
Long arm slab
• Fracture of bothe bones
• Supracondaylar fracture

short leg slab
• Long leg slab
• Tibial shaft fracture

AFTER CARE
• Cast or split tight
• Fingers or toes swollen
• Numbness
• Can not move fingers
• Burning on the cast
• Keep the cast dry
• Keep clean
• Don’t heat the cast

COMPLICATION
• Joint stiffness
• Presure sore
• Contact dermatites
• Nerve palsy
• Compartment syndrome
• dvt

REMOVING THE CAST

REFERENCE
• UPTODATE 2018
• McRae’sORTHOPAEDICTRAUMA
and Emergency Fracture Management

•THANK YOU