What Do You Know Wednesday graphic

Temporomandibular Joint Diagnostic Arthroscopy

Learning objectives:

  • Identify the indications and contraindications for temporomandibular joint (TMJ) arthroscopy, with emphasis on internal derangement and patient selection.
  • Evaluate diagnostic and imaging approaches, particularly the role of MRI in assessing TMJ disc position and pathology prior to arthroscopy.
  • Describe key surgical techniques and intraoperative considerations, including portal placement, instrumentation, lysis and lavage, and joint distension.
  • Recognize potential complications and postoperative outcomes, including nerve injury risks and common long-term patient-reported issues.

Instructions:

Please select the single best answer for each question. This quiz has 20 multiple choice questions. Answering 17 or more questions correctly will generate a certificate of completion for this quiz that we invite you to share on social media. Tag @iaomscommunications on Instagram.

Everyone who completes the quiz and submits their email will receive an email with their answer summary (correct and incorrect answers) and a specialized listing of IJOMS articles and IAOMS webinars to brush up on related skills. Most IAOMS webinars in our e-Learning Library are FREE for IAOMS Members. Not a member? Find out more!

Thank you and good luck!

What is the primary purpose of temporomandibular joint arthroscopy?
Diagnose and treat intracapsular disorders
Remove impacted teeth
Realign mandibular fractures
Perform orthognathic repositioning
Which condition is the most common indication for TMJ arthroscopy?
Internal derangement refractory to conservative therapy
Mandibular hypoplasia
Facial asymmetry
Congenital TMJ ankylosis
Which imaging modality best evaluates disc position before TMJ arthroscopy?
Panoramic radiograph
Computed tomography (CT)
Magnetic resonance imaging (MRI)
Ultrasound
Which anesthesia technique is most commonly used for TMJ arthroscopy?
General anesthesia alone
Local anesthesia alone
Nerve block without sedation
Conscious sedation with local anesthesia
Which portal is used for arthroscope insertion in TMJ arthroscopy?
Anterolateral portal
Posterior portal
Transoral portal
Superior portal
What is the typical diameter of an arthroscope used for TMJ procedures?
1.9 mm
2.7 mm
3.5 mm
4.0 mm
Which solution is most commonly used for joint distension and lavage during TMJ arthroscopy?
Lactated Ringer’s solution
Sterile distilled water
Normal saline
Dextrose 5%
What is the purpose of lysis and lavage in TMJ arthroscopy?
Suture a torn disc
Break adhesions and remove inflammatory mediators
Place bone grafts
Fixate the articular eminence
Which nerve is at highest risk of injury during TMJ arthroscopy?
Facial nerve
Auriculotemporal nerve
Lingual nerve
Mental nerve
What is the most common complication following TMJ arthroscopy?
Hematoma
Joint ankylosis
Persistent infection
Mandibular nerve paresthesia
Which of the following is a contraindication to TMJ arthroscopy?
Mild internal derangement
Active septic arthritis of the TMJ
Chronic myofascial pain
Early disc displacement without reduction
What is the recommended postoperative diet following TMJ arthroscopy?
Liquid diet for 2 weeks
    • Soft diet for 1 week
Regular diet immediately
Puree diet for 1 month
Which substance is commonly injected intra-articularly at the end of TMJ arthroscopy to improve lubrication?
Hyaluronic acid
Methylprednisolone acetate
Bupivacaine
Platelet-rich plasma
Which surgical advantage does arthroscopy have over open TMJ surgery?
Improved orthognathic correction
Direct bone graft placement
Minimally invasive approach with faster recovery
Enhanced facial nerve visualization
What is the typical duration of a TMJ arthroscopy procedure?
10–20 minutes
30–60 minutes
90–120 minutes
Over 3 hours
Approximately how much saline is used for lavage during TMJ arthroscopy?
100 mL
500 mL
1,000 mL
2,000 mL
What is the main therapeutic benefit of lavage in TMJ arthroscopy?
Disc repositioning
Removal of inflammatory mediators and debris
Bone remodeling
Muscle relaxation
Which corticosteroid is commonly injected intra-articularly during TMJ arthroscopy?
Dexamethasone
Triamcinolone acetonide
Hydrocortisone
Prednisone
Which suture technique is most commonly used to close arthroscopy portal incisions?
Simple interrupted sutures
Running subcuticular sutures
Vertical mattress sutures
Purse-string sutures
What is the most common long-term outcome or persistent issue after TMJ arthroscopy?
Joint ankylosis
Persistent joint pain
Disc perforation
Osteonecrosis
Name (First and Last name as you would like it to appear on your certificate, if you get 17 out of 20 correct answers):
{"name":"Management of CraniosynostosisLearning objectives:Differentiate Cranial Deformities: Identify the clinical presentations of various types of craniosynostosis, specifically distinguishing between scaphocephaly, trigonocephaly, and plagiocephaly based on th", "url":"https://www.quiz-maker.com/Q7F4C2PCG","emurl":1,"txt":"What is the primary purpose of temporomandibular joint arthroscopy?, Which condition is the most common indication for TMJ arthroscopy?, Which imaging modality best evaluates disc position before TMJ arthroscopy?","img":"https://www.quiz-maker.com/3012/images/ogquiz.png","accounts":"@iaomscommunications","hash":"#IAOMS, #OMFS #OralSurgery #Craniofacial #Maxollofacial #HeadandKneck"}