Lateral dislocation of the intact mandibular condyle is a relatively uncommon clinical

condition. Since the first description and classification of these dislocations given by

Allen and Young, few classification systems have been proposed in literature with

incorporation of different patterns of dislocations identified over the years. We share

our clinical experience of nine cases of such dislocations with 14 dislocated condyles,

and on the basis of clinical and radiological findings coupled with the review of existing

classification systems, we propose a new classification system which includes all the

possible patterns of such dislocations overcoming the major shortcomings of preexisting

classification systems identified by the authors.

Management of temporomandibular joint (TMJ) ankylosis is mainly through surgical intervention. Interpositional materials

are a necessity when it comes to prevention of TMJ re-ankylosis after arthroplasty. Early aggressive postoperative physiotherapy

is essential for the prevention or treatment of TMJ hypomobility or ankyloses. Recently, it has been shown that

abdominal dermis fat helps promote smooth, pain-free joint function and it is stable after interposition and less prone to

fragmentation. The purpose of this study was to assess that whether dermal fat is a good choice of interpositional material

when it comes to decreased pain perception during aggressive physiotherapy after release of ankyloses thus ensuring good

compliance by the patient. We also assessed the fate of the graft material on computed tomography to evaluate any

volume changes if occurred after interposition.