Tallooksmaxxer
Kraken
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With modified sagittal split osteotomy you can cut the bone from more central parts of clavicle so the bone will be cut from most thick part of clavicles. Therefore the cutten bone will be able support greater lengthening because the thickness of its connector parts.
"The second type of clavicle lengthening osteotomy is the modified sagittal split pattern. In his technique partial thickness perpendicular bone cuts are made on opposite sides of the clavicle 4 cms apart. They are then connected by a midline cut that goes down the center of the bone. (this is very similar to the sagittal split osteotomy of the mandibular ramus) This creates thicker bone ends on each side of the cuts that when put together after lengthening has a normal central bone diameter. The missing half diameter of the bone is on opposite sides of the bone which are filled with bone putty after plate application."
Because of the thicker bone segments some greater shoulder widening may be possible. By lengthening the location of the two half thickness bone cuts (greater than 4cms) some greater lengthening can be achieved with more central bone contact.
In shoulder widening surgery two different osteotomy patterns are possible, each with their own advantages and disadvantages. The oblique osteotomy is simpler to perform but leaves a thinner bone stock to heal and has limitations in its shoulder widening effect. The sagittal split osteotomy requires greater technical precision to perform but leaves a thicker central bone stock and can offer a bit more shoulder widening effect. More clinical experience is needed to determine whether these osteotomy patterns have substantial clinical differences in outcomes and bone healing.