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C O R T I C O T O M Y

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C O R T I C O T O M Y

  1. 1. CORTICOTOMY
  2. 2. TECHNIQUES OF CORTICOTOMY <ul><li>METHODS </li></ul><ul><li>1) PERCUTANEOUS CORTICOTOMY </li></ul>
  3. 3. TECHNIQUES OF CORTICOTOMY <ul><li>2) DRILLING OF POSTERIOR CORTEX </li></ul><ul><li>3) GIGLI SAW METHOD </li></ul><ul><li>4) OBLIQUE OSTEOTOMY </li></ul>
  4. 4. PERCUTANEOUS CORTICOTOMY <ul><li>PRESERVES INTRAMEDULLARY AND ENDOSTEAL CIRCULATION </li></ul>
  5. 5. PERCUTANEOUS CORTICOTOMY <ul><li>5-10 MM. INCISION OVER THE TIBIAL CREST </li></ul><ul><li>LOW ENERGY OSTEOTOMY DONE USING OSTEOTOME AND HAMMER AFTER PERIOSTEAL ELEVATION </li></ul>
  6. 6. PERCUTANEOUS CORTICOTOMY <ul><li>FIRST ANTERIOR THEN MEDIAL AND LATERAL CORTICES CUT WITH OSTEOTOME </li></ul><ul><li>SIMILARLY POSTEROMEDIAL AND POSTERO LATERAL CORNERS CUT </li></ul>
  7. 7. PERCUTANEOUS CORTICOTOMY <ul><li>OSTEOTOME TWISTED TO CUT POSTERIOR CORTEX </li></ul><ul><li>COMPLETED BY ROTATIONAL OSTEOCLASIS </li></ul>
  8. 12. DRILLING OF POSTERIOR CORTEX <ul><li>ROTATIONAL OSTEOCLASIS DONE </li></ul><ul><li>POSTERIOR CORTEX PERFORATED BY FOUR TO FIVE 4MM DRILL HOLES </li></ul>
  9. 17. GIGLI SAW METHOD <ul><li>SECOND INCISION MADE AT POSTEROMEDIAL BORDER </li></ul><ul><li>PERIOSTEUM ELEVATED </li></ul>
  10. 18. GIGLI SAW METHOD <ul><li>NEEDLE OR TAPE PASSED FROM POSTEROMEDIAL INCISION AROUND POST. CORTEX AND BROUGHT OUT THROUGH ANT. INCISION </li></ul><ul><li>CUT BY GIGLI SAW </li></ul>
  11. 21. OBLIQUE OSTEOTOMY <ul><li>HAS SOME CORTICAL SUPPORT </li></ul><ul><li>DECREASES TENDENCY FOR AXIAL DEVIATION </li></ul><ul><li>SPIRAL OSTEOTOMIES CAN ALSO BE DONE </li></ul>

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