A gap arthroplasty was performed to a separate the bony fusion between the condyle and lateral glenoid fossa [Figure 4]b.
Multiple surgical techniques are available, including gap arthroplasty, interpositional arthroplasty, and total joint reconstruction.
On the contrary,a study by Elgazzar et al18 has reported least satisfactory results with gap arthroplasty when compared with other techniques.
With temporalis muscle interpositional arthroplasty the recurrence rate is very low as compared with gap arthroplasty.
9) the advantages of gap arthroplasty
are its simplicity and short operating time and the disadvantages include:
combined with distraction osteogenesis in the treatment of unilateral ankylosis of the temporomandibular joint and micrognathia.
Topazian's1 review of gap arthroplasty
without interposition reported a recurrence rate as high as 5% pertaining to condylectomy as method of treat- ment.
Comparion of gap arthroplasty
and interpositional gap arthroplasty
on the temporomandibular joint ankylosis.
Topazian reviewed gap arthroplasty
without interposition and reported a recurrence rate of 53%.
Key Words: TMJ ankylosis, Condylar fracture, Disc repositioning, Gap arthroplasty
versus interpositional arthroplasty in the management of tem- poromandibular joint ankylosis.
with disc interpositioning was instituted in all the patients with established TMJ ankylosis.