Costochondral graft

March 24, 2012 | By | Reply More

Costochondral graft

Definition: it is an autogenous graft and used to restore the function of TMJ.

1)to replicate structurally normal joint anatomy
2)to provide functional articulation to establish an area where the active growth can occur

1)it is harvest from 5th,6th,7th rib
2)if the 2nd rib required,anintevening rib should be left
3)the costochondral junction in the site of which along with some amount of length of rib
4)the length of rib depends on the height of the ramaus become restricted
5)a minimum length of the costocondral junction(1.5cm)should bee included in the graft
6)the bone graft is curved to stimulate the head of the condyle
7)it is fixed with the lateral border of the ramus by screw or transosseous wiring
8)there should be a gap of .5-1cm between the graft and glenoid fossa to encourage movement of mandible without friction

-increase open bite
-additional operating field
-graft may cause reankylosis


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Category: Dental, Oral Surgery

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