What is Condylectomy?
A condylectomy is the preferred method for treating dysmorphology in temporomandibular joint (TMJ) defects. This procedure is indicated for a unilateral mandible condylar hyperplasia, in which the patient has bone irregularities or impingements.
What causes condylar resorption?
Systemic connective tissue or autoimmune diseases that can cause condylar resorption include rheumatoid arthritis, psoriatic arthritis, scleroderma, systemic lupus erythematosus, Sjögren syndrome, ankylosing spondylitis, and others. ICR is a specific disease entity different from these other disease processes.
How do you fix mandibular hyperplasia?
Treatment usually includes condylectomy during the period of active growth. If growth has stopped, orthodontics and surgical mandibular repositioning are indicated. If the height of the mandibular body is greatly increased, facial symmetry can be further improved by reducing the inferior border of the mandible.
What is Kaban’s protocol?
Modified Kaban’s protocol (2009) uses autogenous reconstruction of ramus condyle unit (RCU) with costochondral graft (CCG) and transport disc distraction osteogenesis (TDDO) in children with TMJ ankylosis.
What is a modified Condylotomy?
The modified condylotomy is an extra-articular surgical procedure used to manage patients with temporomandibular joint dysfunction. The primary purpose of the procedure is to increase joint space by allowing the mandibular condyle to move inferiorly with respect to both the articular disc and eminence (Figs 1 and 2).
What causes condylar hyperplasia?
Condylar hyperplasia (CH) is a generic term describing conditions that cause excessive growth and enlargement of the mandibular condyle. There are many suggested etiologies of CH, including neoplasia, trauma, infection, abnormal condylar loading,1 and aberrant growth factors.
What is mandibular resorption?
Specialty. Orthopedic. Condylar resorption, also called idiopathic condylar resorption, ICR, and condylysis, is a temporomandibular joint disorder in which one or both of the mandibular condyles are broken down in a bone resorption process.
How do I know if I have idiopathic condylar resorption?
The signs of condylar resorption are: Facial imbalance (receding chin), Smaller airway (snoring, apnea) and. Bite disturbances (anterior open bite, posterior tooth wear and muscle pain).
What is mandibular hypoplasia?
Micrognathia is a condition in which the lower jaw is undersized. It is a symptom of a variety of craniofacial conditions. Sometimes called mandibular hypoplasia, micrognathia may interfere with your child’s feeding and breathing.
How is condylar hyperplasia treated?
What is Coronoidectomy?
Coronoidectomy is a procedure where the bone attachment is cut and removed (J Oral Maxillofac Surg 75:1263-1273, 2017). That is a more involved procedure, but is generally felt to be a “better” “more complete” procedure.
What is TMJ ankylosis?
Temporomandibular joint (TMJ) ankylosis is a pathologic condition where the mandible is fused to the fossa by bony or fibrotic tissues. This interferes with mastication, speech, oral hygiene, and normal life activities, and can be potentially life threatening when struggling to acquire an airway in an emergency.
What is mandibular condylectomy?
Mandibular condylectomy is may be undertaken when the jaw regularly locks open or closed. Removing the condyle allows a new fibrous joint to form which makes for a better range of movement.
How is a condylectomy performed for the removal of a condyle?
The condylectomy is performed as planned. Osteotomies may be necessary to remove any parts of the condyle still attached to the remaining condylar process. The remaining condylar stump is re-contoured with a burr to resemble a condyle.
What is subperiosteal dissection of mandibular condyle?
Subperiosteal dissection along the condylar neck and head is carried out until the mandibular condyle is fully exposed. The condylectomy cut is completed, and the capsule and lateral pterygoid muscle are dissected off the condylar head and neck.
How do you remove a condylar process from the temporomandibular joint?
A preauricular approach is used to gain access to the temporomandibular joint and expose the parts of the condyle that need to be removed. 3. Condylectomy The condylectomy is performed as planned. Osteotomies may be necessary to remove any parts of the condyle still attached to the remaining condylar process.