Hands on temporal Bone dissection workshop-1

Hands-on Temporal Bone Dissection Workshop-1
The 1st Hands-on Temporal Bone Dissection Workshop was an intensive surgical skill-building program conducted on March 31, 2025. Jointly organized by the Department of ENT and the Department of Anatomy, this hands-on workshop provided structured cadaveric temporal bone dissection training tailored specifically for postgraduate ENT trainees.

Capped at 15 postgraduate students, the workshop ensured dedicated surgical workstation access, individual microscope setups, and direct one-on-one mentorship from senior ENT faculty and clinical anatomists.

Key Highlights & Dissection Goals
Delegates executed precision micro-drilling and sequential anatomical exposures on high-grade human temporal bone specimens, translating radiological and microscopic anatomy into surgical mastery.

  • Individual Stations – Dedicated micro-drill consoles, suction-irrigators, and operating microscopes
  • Step-by-Step Corridors – Cortical mastoidectomy, facial nerve identification, and posterior tympanotomy
  • ENT & Anatomy Collaboration – Seamless integration of surgical technique and regional microanatomy
  • Focused Cohort – Limited to 15 PG students for personalized, step-by-step faculty guidance
  • Otologic Safety – Emphasis on safeguarding the facial nerve, tegmen, and sigmoid sinus plate
All dissections were performed adhering strictly to ethical guidelines and institutional cadaveric protocols, providing young otologists with tactile feedback critical for live otologic and neurotologic procedures.
Structured 1-Day Intensive Dissection Modules
Held on 31/03/2025, the single-day schedule was packed with focused operative demonstrations, safety drills, and continuous wet-lab microdissections.
The morning sessions began with anatomical orientation of temporal bone landmarks and cortical mastoidectomy techniques. Afternoon sessions progressed into advanced drilling: facial canal skeletonization, opening the facial recess (posterior tympanotomy), ossicular chain exploration, and labyrinthine dissection.

Dissection Steps & Skill Matrix

Session 1: Cortical Mastoidectomy | Session 2: Facial Recess & Middle Ear | Session 3: Deep Otologic Structures
Macewen’s triangle & spine of Henle | Posterior tympanotomy (facial recess approach) | Labyrinthectomy (semicircular canals)
Delineation of tegmen tympani & mastoideum | Skeletonization of mastoid segment of facial nerve | Internal auditory canal (IAC) exposure
Skeletonization of sigmoid sinus plate | Round window niche & stapes visualization | Endolymphatic sac & jugular bulb identification
Dural plate thinning & antrum opening | Cochleostomy marker identification | Live troubleshooting & burr control training

Procedural Dissection Curriculum
Under direct proctoring, delegates navigated each crucial anatomical landmark to develop muscle memory and surgical confidence.

Identification of surgical landmarks (spine of Henle, suprameatal crest, temporal line). Drilling boundaries defined by the tegmen plate superiorly, sinus plate posteriorly, and posterior canal wall anteriorly, followed by complete unroofing of the mastoid antrum.

Refining micro-drill technique using diamond burrs and continuous irrigation to skeletonize the sinus plate and dural tegmen plates down to eggshell bone thickness without dural tear.

Precise dissection of the facial recess bounded by the mastoid segment of the facial nerve, chorda tympani, and fossa incudis. Key access for round window visualization and cochlear implant electrode insertion.

Systematic inspection of the malleus, incus, stapes suprastructure, footplate, sinus tympani, pyramidal eminence, and promontory under high-power magnification.

Dissection of horizontal, superior, and posterior semicircular canals. Exposure of the vestibule, identification of the subarcuate artery, and tracking towards the internal auditory canal.
Faculty from the Department of Anatomy correlated micro-dissected views with embryological boundaries and cross-sectional radiological images.
Eligibility & Registration Guidelines
This hands-on wet-lab workshop was crafted explicitly to fast-track otologic drilling skills for early-career ENT trainees.

Target Audience

Postgraduate residents pursuing MS (ENT) or DNB (ENT) seeking hands-on micro-drilling experience.
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Lab Infrastructure

High-speed micro-motor systems, tungsten/diamond burr sets, continuous irrigation-suction, and Zeiss optics.
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Certification

Official certificate issued jointly by the Department of ENT and Department of Anatomy with CME credit points.
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Prior to table allocations, all postgraduates received comprehensive instruction on temporal bone orientation, suction-irrigation coordination, and drill safety to prevent specimen burn and burr runaways.

WORKSHOP FACULTY & ORGANIZERS

DEPARTMENT OF ENT
DEPARTMENT OF ENTLead Otology Faculty
Senior ENT Surgeon guiding postgraduate trainees on mastoidectomy and surgical corridors.
DEPARTMENT OF ANATOMY
DEPARTMENT OF ANATOMYAnatomical Lead
Supervising temporal bone preservation, anatomical orientation, and structural dissection.
ORGANIZING COMMITTEE
ORGANIZING COMMITTEEWet-Lab Coordinator
Overseeing surgical station setup, micro-motor instrumentation, and session coordination.

Workshop-1: 15 PG Students Trained • Hands-On Cadaveric Training

Conducted on 31/03/2025 | Jointly organized by the Department of ENT and Department of Anatomy.

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PG Students Trained
0 Day
Intensive Wet-Lab
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Cadaveric Bone Dissection

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