This document discusses different types of bone plates used in orthopedic surgery. It describes plates classified by shape, width, thickness, hole shape, and anatomy. Key plate types include neutralization plates, compression plates, buttress plates, tension band plates, and condylar plates. Neutralization plates are used with lag screws to counter forces. Compression plates apply compression parallel to the plate for benefits like increased stability and healing. Buttress and antiglide plates apply forces perpendicular to the plate. Condylar plates combine features of buttress and neutralization plates.

1. BONE PLATES
DR. SHANU SAURABH
DR RONGALI PRASHANTH TEJA
MAULANA AZAD MEDICAL COLLEGE

2. CLASSIFICATION
 SHAPE eg one third tubular plate
 WIDTH eg broad plate
 THICKNESS eg low contact plate
 SHAPE OF HOLE eg round hole plate
 ANATOMY eg condylar plate
 FUNCTION :
 NEUTRALIZATION PLATES
 COMPRESSION PLATES
 BUTTRESS PLATES
 TENSION BAND PLATES
 CONDYLAR PLATES

3. NEUTRALIZATION/PROTECTION PLATE
 A plate used in combination with a lag screw is called neutralization plate
counteracting torsional, bending and shearing forces that tend to disrupt
the screw
 Eg of use in oblique , long spiral or a butterfly fracture

4. COMPRESSION PLATE
 Direction of compression force is parallel to the plate
 Advantages of compression:
 Immediate increase in mechanical stability
 Less callus bridging distance
 Blood supply protection
 Friction reduction
 Increased primary bone healing
 TYPES OF COMPRESSION : STATIC VS DYNAMIC( tension band principle)

5. Methods of achieving compression
 SELF COMPRESSION PLATE: Spherical Gliding Principle
 TENSIONING DEVICE:
 Verbrugge forceps,
 Articulated Tension Device (Synthes)
 ECCENTRIC SCREW PLACEMENT
 LAG SCREW

6. TENSION BAND PLATE

7. BUTTRESS PLATE AND ANTIGLIDE PLATE
 Fractures of epiphysio-metaphyseal ends are unstable during joint loading
and therefore needs a large surface area plate which applies reaction force
perpendicular to plate and keeps fracture segments in place
Eg T plate of distal radius,
tibial plateau , tibial plafond
ANTIGLIDING PLATE Eg distal end of fibula

8. CONDYLAR PLATE
 Combines the benefits of buttress plate plus neutralizing plate
95* CONDYLAR PLATE- proximal femoral osteotomy, 4 fragment proximal
femoral fracture, intercondylar fracture femur
Condylar Compression Screw