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3. History of present illness-
No history of ear infections.
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The patients attenders elicits History of delivery in a public
bus where the child had a fall to the floor of bus, the point
of impact is not known. There was a partial mouth opening
at birth which gradually decreased to the present condition.
4. Medical history-
No relevant personal dental and family history
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On her 4th day after birth Underwent treatment to
right eye after she had trauma due to accidental
hit of her grandmother’s nail while bathing,
during the treatment period there was infection
and resulted in loss of vision within 7 days.
7. Local examinationExtra oral- On InspectionFacial asymmetry detected with soft tissue
fullness on left side.
Chin deviated to left-1cm
Mouth opening restricted-1mm
No lateral and antero-posterior extrusive
movements of lower jaw.
Chin receeded with hypoplastic mandible.
Condylar movements severly restricted.
Thyro- mental angle reduced.
Shortening of ramus is observed on the left
side.
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Lips incompetent
8. Extra oral examinationPalpationOn palpation the inspectory finding are
confirmed.
Prominent gonial angle on left side.
Steep mandibular angle on left.
Short body of mandible on the left side.
Foreshortening of Ramus on left side.
Condyle movement is severely
restricted.
On clenching masseter muscle is tensed
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Lower border of mandible is concave on
left side with Accentuated antegonial
notch on both sides with more severity on
left.
9. Intra oral examinationOn inspection anterior open bite
present.
Class – 2 malocclusion
Midline shift-7mm
Malpositioning of teeth.
Tongue thrust is positive.
Right side scissor bite and left side
cross bite.
Poor oral hygiene.
Mild difficulty in deglutition.
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Overjet-9mm
20. DEFINITIONS
True ankylosis
Pseudo-ankylosis
Mechanical interference - joint hypomobility
and the joint is normal.
Fibrous ankylosis, coronoid hyperplasia or
fusion of coronoid process with the tuberosity of
maxilla or zygoma are examples of pseudoankylosis
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Intra-capsular condition - fusion of the bony
surfaces of the joint - the condyle and glenoid fossa.
23. Sawhney’s classification (1986):
CLASSIFICATIONS
TYPE-2
Deformed
condylar head
with lost
function,decreased joint space
and dense
fibrous adhesion
.TYPE-3
Bony block from
asc ramus to
zygomatic arch,
condyle
deformed .
Ant or post bony
fusion of
misshaped
condyle with
articular
surface,lateral
lipping .
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TYPE -1
TYPE-4
Totally deformed
anatomy, bony
mass,with
complete fusion
24. CLASSIFICATIONS
Based on etiology:
Traumatic
Congenital (Forcep delivery)
Childhood trauma
Adulthood trauma
Can also be
i. Osseous
ii. Fibro-osseous
iii. Fibrous
iv. Cartilaginous or osteocartilaginous
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26. Classification on CT findings-Sashi aggarwal(1989)
Type
II-joint architecture completely
disrupted
large mass of bone
midline shifted to the affected side
3.5 cm in maximum thickness
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Type
I-condyle could be identified
mild to moderate bone formation
lateral part of articular fossa
2.5 cm in max thickness
27. CLASSIFICATIONS
Modified classification based on CT-scan: El-Hakim, S A
Metwalli (2003)
Class I- includes uni &bil fibrous ankylosis
Class II-uni or bil bony fusion
Class III- distance b/n maxillary artery & the medial pole
of the mandible is less on the ankylosed side
Class IV-ankylosed mass appeared fused to the base of
skull
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28. CLASSIFICATIONS
Topazian three-stage classification
I, ankylotic bone limited to the condylar
process;
stage
II, ankylotic bone extending to the sigmoid
notch;
stage III, ankylotic bone extending to the
coronoid process.
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stage
30. PSEUDOANKYLOSIS
1.DEPRESSED ZM ARCH #
3.ADHESIONS OF CORONOID PROCESS
4.HYPERTROPHY OF CORONOID PROCESS
5.FIBROSIS OF TEMPORALIS MUSCLE
6.MYOSITIS OSSIFICANS
7.SCAR CONTRACTURE
8.TUMOUR OF CONDYLE OR CORONOID
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2.FRACTURE DISLOCATION OF CONDYLE
33. ETIOLOGIES
Organisms may reach the joint by instrumentation
Lacerated wound.
2.
Through bloodstream
3.
Direct extension from infection of neighboring
structures.
4.
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1.
Blunt trauma.
Staphylococci, streptococci and occasionally gonococci.
34. TOPAZIAN LISTS THREE MECHANISMS
1.
Primary Otitis media causing secondary joint
2.
Suppurative arthritis of TMJ involving the middle
ear secondarily
3.
Suppurative arthritis of the joint draining into the
cartilaginous canal.
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involvement.
35. Infection from mastoiditis in 3 ways
1.
2.
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3.
Direct extension
Thrombophlebitis
Hematogenous dissemination
Dried skull > 10 years of age - tiny opening or perforation
in the central part of the tympanic plate - incomplete
ossification.
Infection can spread through
1.
Opened sutures
2.
Incomplete ossification
3.
Delayed ossification
38. DIAGNOSIS
History, Clinical, Radiographic examination.
Norman Rowe
2. Inability to open mouth or marked limitation.
3. Slight motion of the condyle of the non-involved side.
4. Slight motion from springing of the fibro-osseous tissue on the
involved side;
in the bilateral case, movement may be impossible.
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1. H/O injury to, or infection of the jaws.
39. 5. Asymmetry of the face
6. Flattening of face
7. Shift of symphysis
9. Shortness of vertical and horizontal ramus of the
mandible.
10. Deep antegonial notch on the involved side.
11. Decreased or almost absent joint space
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8. Normal occlusion of the teeth on uninvolved
side
40. CLINICAL MANIFESTATIONS
Vary according to
Severity of onset
2.
Time of onset
3.
Duration
Early-below 15 years, severe facial deformity and loss of
function
Late– after 15 yrs.. Facial deformity nil, function loss
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1.
41. UNILATERAL ANKYLOSIS
Obvious
deformity
Chin
to affected side
receded with hypoplastic
mandible on affected side
Lower
border - concavity
Cross
bite
Class
II
Condylar
movements absent
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Deviation
42. BILATERAL ANKYLOSIS
MIO
decreases
- micro
but symmetrical
Bird
face deformity
Neck
chin angle - absent
Multiple
Less
carious tooth
than 5 mm
Upper
incisors often protrusive
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Mandible
45. PANORAMIC VIEWS
Joint deformity
Loss of the joint space
Abnormal bone formation in and around the joint,
These details are clearly apparent - CORONAL CT - illustrate
whether the ankylotic mass is fibrous or bony.
POST-CONTRAST CT demonstrate
the relation to surrounding vital structures, especially the maxillary
artery.
These findings ASSIST in
Better surgical planning and therefore reduced operating time
and surgical complications.
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Do not reveal the nature and the extent of the pathology, in particular the medial
and lateral extension of the ankylosed bony mass, and its relation to surrounding
vital structures.
46. ANESTHETIC CONSIDERATIONS
Limited protrusion, diminished lateral excursion, as well as
trismus.
Failure to properly manage the airway - life threatening
Conventional tracheal intubation cannot be performed if the
MIO < 25mm
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47. TECHNIQUES
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If the mouth opens less than 25 mm,
Transoral fibreoptic bronchoscopy-assisted intubation,
Transnasal fibreoptic bronchoscopy-assisted intubation,
Tracheostomy, or
Blind nasal intubation should be performed under
sedation or using general inhalation anaesthesia with the
patient breathing spontaneously
48.
Incidence of laryngospasm - 8.6 : 1000 in adults and
27.6 : 1000 in children
Topical lidocaine, succinylcholine, and positive pressure
Bilateral superior laryngeal nerve block -severe repeated
postoperative laryngospasm
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ventilation - standard management of laryngospasm
49. ANKYLOSIS IN CHILDREN
REASONS:
1. Articulating surfaces highly vascular
3. Vascular articulating disc
4. Thick and stout condylar neck
5. Hemoarthrosis and CO2 tension
6. Greater osteoblastic activity
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2. Flat and broad glenoid fossa
50. SURGICAL TREATMENT IN CHILDREN
Two objectives
1. To improve mandibular function
1. Type 1&2 high condylar shave. 3-4mm of gap. Disc to be
mobilized
2. Destroyed condyle to be replaced by grafts
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2. Normal growth and development
51. SURGICAL ACCESS TO TMJ
Potential problems
Facial nerve
Terminal branches of ECA
Serious morbidity from facial nerve overshadows the mechanical improvements in
joint function
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Access to temporomandibular joint - important
for surgical success.
57. ADVANTAGES
Excellent access to the lateral and posterior
aspects of the joint
Esthetically acceptable
Scar hidden
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Disadvantage
potential for perichondritis
59.
Following advantages,
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Minimal bleeding and less sensory loss.
Facial planes arc easily identified.
Excellent visibility.
Potential complications of muscle herniation and
fibrosis are avoided.
Remarkably little post-operative discomfort or
swelling.
Good cosmetic result is achieved except in the very
bald.
Technique is easily teachable and speedily executed.
62. ADVANTAGES
Excellent exposure of the entire joint
Ability to camouflage the scar in patients –
keloids.
should not be used – joint infection
chronic otitis externa
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Disadvantage
Auricular stenosis
64. RHYTIDECTOMY
Face-Lift approach
Variant of the retromandibular approach.
Difference - placement of the incision.
Provide greater exposure to the superior joint
cavity
However, it requires additional time for closure.
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69. ADVANTAGES
Simplicity
Short
operating time
Pseudo-articulation
Short
ramus height
Failure to remove all bony disease
Development of open bite {bilat cases}
Suboptimal range of motion
Recurrent ankylosis (60%)
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DISADVANTAGEs
73. ADVANTAGES
Simplicity
Short operating time
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DISADVANTAGES
Donor site morbidity if auto….
Risk of foregin body reaction if allop….
Failure to remove all the bony pathology
74. KABAN’S PROTOCOL (1990)
Aggressive resection
2.
Ipsilateral coronoidectomy
3.
Contralateral cronoidectomy (if necessary)
4.
Lining of TMJ with temporalis fascia or cartilage
5.
Reconstruction of ramus using costochondral
graft
6.
Rigid fixation
7.
Early immobilization and aggressive
physiotherapy
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1.
75. SALIN’S PROTOCOLThe ankylotic mass itself is not resected
Bone is not removed to create a gap
Functional pseudoarthrosis is created between
the normal bone surface.
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76. OTHER TECHNIQUES PROPOSED
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Nitzan et al.- in type 3 ankylosis involving TMJ
preservation of existing articular elements to form a
joint after selective elimination of the bony bridge,
JOMS-1998:56:1133-8
Chossegross et.al- used full thickness skin graft from
groin region as inter-positional material and acquired
92% success with 3years follow-up, IJOMS1999:28:330-4
Gunaseelan R. condylar resection in extensive
ankylosis in adults followed by usage of resected
segment as autograft. IJOMS-1997:26:405-7
Herbosa and Rotskoff –used composite temporalis
pedicle flap as an interpositional graft- 18 months of
follow-up showed significant improvement in
mandibular range of motion due to compensatory
rotational movement.-JOMS-1990:48:1049-1056.
79. GOALS FOR TMJ RECONSTRUCTION
of joint and muscle pain.
Restoration
of normal joint function
Restoration
normal posterior vertical dimensions and
length.
Stable
skeletal occlusal relationship
Maintenance
Lifetime
of facial symmetry
maintenance of restored function, comfort
and esthetics
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Elimination
81.
Purpose of using costochondral grafts for reconstruction
of TMJ ankylosis is twofold:
ankylosis,
2) To restore the joint’s form and function.
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1) To ensure a wide gap arthroplasty for release of the
82. ADVANTAGES
Biologic acceptability and remodeling by
oppositional growth, especially in children
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DISVANTAGES
Increased operating time
Additional surgical site
83. COMPLICATIONS
Donor site morbidity,
such as
Pneumothorax & pleuritic pain
Potential overgrowth of the graft
Suboptimal postoperative range of motion
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84. intra-articular adhesions,
prevent soft tissue contraction
stretch maturing fibrous tissue,
redevelop normal
muscle function.
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Early movement will prevent--
87. INDICATIONS
Ankylosed, degenerated or resorbed joints with severe
Failed autogenous bone grafts
Destruction of autogenous bone due to preexisting
foreign body reaction.
Recurrent ankylosis.
Severe polyarticular inflammatory joint disease of TMJs
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anatomic discrepancies
88. RELATIVE CONTRAINDICATIONS
Insufficient patient age
Lack of understanding of the patient
Uncontrolled systemic disease
Allergic to materials used in devices
Active infection at implantation site.
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89. ADVANTAGES
Physical therapy can begin immediately
No need for second donor site
Reduced surgical time
Alloplasts – mimic normal anatomic contours, better adapted to
the bony surfaces.
Stable occlusion post-operatively
Decreased hospital stay
Opportunity to manipulate prosthesis design to discourage
heterotrophic bone formation
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90. DISADVANTAGES
Cost of prosthesis
Material wear and failure
Long term stability
Inability to follow patients growth
Potential for severe giant cell reactions
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94. COMPLICATIONS
Foreign-body reaction to some materials
Erosion of metal condylar prosthesis into the
glenoid fossa
Suboptimal postoperative range of motion
Loosening of screws and loss of stability
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96. DIAGNOSIS OF FAILED ALLOPLASTIC IMPLANTS
Swelling
with or without visual confirmation and
ed tightness in and around joints
ed hearing or fullness in the ears without
abnormal otologic findings
ed pain in the joint with function with or without
headaches in temple area
ing ability to masticate food
ing range of motion
ing sound in the joint
Posterior
open bite
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97. ON THE WORK OF GHELMAN - RADIOGRAPH OF ANY
ALLOPLASTIC TMJ REPLACEMENT:
1. The position of the components,
3. The presence of metal fractures,
4. Areas of ectopic bone formation.
5. Metal fragments in and/or around the joint.
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2. The position of the fixation screws.
6. Host bone osteolysis around major components and/or fixation
screws.
7. Infection.
99. COMPLICATIONS
Prevention of re-ankylosis
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8. Reankylosis
10-15% of cases
Within 6 months
Especially in children of 6-8yrs of age
Physio therapy
The post-operative follow-ups should be weekly for the first 1
month, followed by monthly for the next 5 months. Successive
follow-up recalls should be made till 2 years post op to ensure
that the patient does not develop a re-ankylosed joint.
100. POST-OP REHABILITATIONDISTRACTION OSTEOGENESIS- of body of
mandible- one stage vs two stage2011 American
Association of Oral and Maxillofacial Surgeons
J Oral Maxillofac Surg 69:e565-e572, 2011
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102. REFERENCES
*A TEXTBOOK & COLOUR ATLAS OF TMJ DISEASES,
DISORDER, SURGERY - J. E. DeBURGH NORMAN
*MAXILLOFACIAL TRAUMA – ROBERT H. MATHOG
*SURGERY OF THE TMJ – DAVID ALEXANDER KEITH
DIAGNOSIS, MANAGEMENT - WELDEN E. BELL
*ORAL AND MAXILOFACIAL INFECTIONS – TOPAZIAN
*TEXT BOOK OF ORAL MEDICINE – BURKETT.
*TEMPOROMANDIBULAR DISORDERS – KAPLAN
*MANAGEMENT OF TMJ DISORDERS AND OCLUSION –
JEFFREY OKESON
*MAXILLOFACIAL SURGERY – PETER WARDBOOTH
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*TEMPOROMANDIBUALR DISORDERS CLASSIFICATION,
103. REFERENCES
*A Protocol for Management Of TMJ Ankylosis
Leonard B Kaban, David H Perrott, Keith Fisher JOMS; 48; 1990:
1145-51
*New Perspectives In The Management Of Cranio-Mandibular
*Bone Ankylosis of the TMJ. A CT study Sashi Aggarwal, Sima
Mukhopadhyaya, Manorama berry, OOO; 1990; 69: 128-32
*Imaging of TMJ; A New Radiographic Classification. IE El-Hakim,
S A Metwalli Dentomaxillofacial Radiology 2002; 31; 19-23.
*A Clinical Study on TMJ Ankylosis - Behcet Erol, Rezzzan
Tanrikulu, Belgin Gorgun J Craniomaxillafacial Surg; 2006; 34
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Ankylosis. P C Salins, IJOMS, 2000; 29; 337-40
104. REFERENCES
*The Effect Of Intra-Articular Bone Fragments In Genesis of
TMJ Ankylosis - H Miyomoto, K Kurith, N Ogi,
*Development of human TMJ - David A Keith
BJOMS 1982; 20; 217-20
*TMJ Ankylosis - Henk Tideman
ADJ; 1987; 32(3); 171-77
*TMJ Ankylosis following mastoiditis - Thomas H Faerber,
Robert Ennis
JOMS, 1990; 866-70
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IJOMS 2000; 29; 290-95
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