Anatomy and Surgical Approach of the Ear and Temporal Bone

Isaacson, Brandon

doi:10.1007/s12105-018-0926-2

Cited by 27 publications

(24 citation statements)

References 23 publications

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“…To avoid iatrogenic injury to the adjacent structures, the MA must be open superiorly toward TT. The tympano-mastoid suture at the posterior wall of the MA is surface marking of the course of the vertical portion of the facial nerve (FN) [9,16,18]. Peris-Celda et al reported that the parietal notch corresponds to the posterior petrosal point and the SS (the transverse-SS junction) in 66 and 34% of the cases, respectively [9].…”

Section: Surgical Landmarks and Ossification Of The Mastoid Portionmentioning

confidence: 99%

“…Laterally, external surface is bounded by the cartilaginous part of the EAC which extends from the auricle to the tympanic membrane. The EAC is an S-shaped tube, about 2.5 cm in long, that is composed of the lateral third cartilaginous part and the medial two-thirds osseous part [14,15,18]. The tympanic part constructs the anterior wall and floor and the lower part of posterior wall of the EAM, whereas the squamous part forms the superior and upper part of the posterior wall of it (Figure 1).…”

Section: Borders and Surfaces Of The Tympanic Portionmentioning

confidence: 99%

“…Its opening is an oblique slit behind the IAM (Figure 3). The endolymphatic sac is located at the lateral part of the posterior surface medial to the posterior SSC [2,18].…”

Section: Surgical Landmarks On the Posterior Surface Of The Petrous Pmentioning

confidence: 99%

“…The external opening of the CC, which shows an inverted L-shape course, forms the entrance for the ICA, which is surrounded by a plexus of sympathetic nerves (Figure 4). The anterior margin of the horizontal segment of the CC is separated from the musculotubal canal by a thin layer of bone laterally [1,5,18].…”

Section: Surgical Landmarks On the Inferior Surface Of The Petrous Pomentioning

confidence: 99%

“…Posterior wall consists of the pyramidal eminence, epitympanum, and facial recess. The stapedius muscle passes through the pyramidal eminence and inserts to the head of the stapes [2,5,7,14,18].…”

Section: Internal Anatomy and Ossification Of The Petrous Portionmentioning

confidence: 99%

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Surgical Anatomy of the Temporal Bone

Açar¹,

Çiçekcibaşı²

2021

Oral and Maxillofacial Surgery

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Numerous neurological lesions and tumors of the paranasal sinuses and oral cavity may spread into the middle and posterior cranial fossae through the anatomical apertures. For the appropriate management of these pathologies, many extensive surgical approaches with a comprehensive overview of the anatomical landmarks are required from the maxillofacial surgery's point of view. The surgical significance lies in the fact that iatrogenic injury to the petrous segment of the temporal bone including the carotid artery, sigmoid sinus, and internal jugular vein, can lead to surgical morbidity and postoperative pseudoaneurysm, vasospasm, or carotidcavernous fistula. To simplify understanding complex anatomy of the temporal bone, we aimed to review the surgical anatomy of the temporal bone focusing on the associations between the surface landmarks and inner structures. Also, breaking down an intricate bony structure into smaller parts by compartmental approach could ease a deep concentration and navigation. To identify the anatomic architecture of the temporal bone by using reference points, lines and compartments can be used to supplement anatomy knowledge of maxillofacial surgeons and may improve confidence by surgical trainees. Especially, this systematic method may provide an easier way to teach and learn surgical spatial structure of the petrous pyramid in clinical applications.

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Section: Surgical Landmarks and Ossification Of The Mastoid Portionmentioning

confidence: 99%

Section: Borders and Surfaces Of The Tympanic Portionmentioning

confidence: 99%

“…Its opening is an oblique slit behind the IAM (Figure 3). The endolymphatic sac is located at the lateral part of the posterior surface medial to the posterior SSC [2,18].…”

Section: Surgical Landmarks On the Posterior Surface Of The Petrous Pmentioning

confidence: 99%

Section: Surgical Landmarks On the Inferior Surface Of The Petrous Pomentioning

confidence: 99%

Section: Internal Anatomy and Ossification Of The Petrous Portionmentioning

confidence: 99%

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Surgical Anatomy of the Temporal Bone

Açar¹,

Çiçekcibaşı²

2021

Oral and Maxillofacial Surgery

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Preoperative simulation using three‐dimensional printer in four temporal bone surgeries

Fukumoto

Mita

Shimmi

et al. 2023

Clinical Case Reports

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Squamous cell carcinoma of ear and temporal bone: A retrospective study on clinicopathological predictors

Li,

Tucker,

et al. 2024

Head & Neck

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BackgroundEar and temporal bone squamous cell carcinoma (ETBSCC) is a rare and aggressive malignant tumor with minimal clinicopathological studies. The object of this study was to retrospectively evaluate the predictive effect of clinicopathological variables on the 5‐year overall survival (OS) rate of ETBSCC patients in a single tertiary medical center in Tianjin, China.MethodsA cohort of 44 patients with diagnosed ETBSCC from December 2012 to August 2022 were retrospectively studied. Univariate and multivariate analysis were, respectively, performed for the assessment of clinicopathological predictors, including sex, age, history of chronic suppurative otitis media (CSOM), lesion side, diameter, the choice of surgical approach, parotidectomy, neck dissection, adjuvant therapies, T stage, lymph node metastasis, tumor grade, margin, perineural invasion (PNI), and Ki‐67 index.ResultsSeventeen females and 27 males were included, with the mean age of 65 years old, ranging from 36 to 89 years. The 5‐year OS rate was 43% (mean 51 months, 95% confidence interval [CI] = 39–64). Significant prediction of a worse prognosis for 5‐year OS rate was observed under univariate analysis for advanced T stage, positive margin, identified PNI, and higher Ki‐67 index, respectively. Advanced T stage was confirmed to be an independent prognostic factor strongly affecting 5‐year OS rate among this cohort of patients using a multivariate cox proportional hazard model.ConclusionWe found that clinicopathological parameters, especially postoperative pathological parameters, play a critical role in predicting the prognosis of ETBSCC patients.

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Anatomy and Surgical Approach of the Ear and Temporal Bone

Cited by 27 publications

References 23 publications

Surgical Anatomy of the Temporal Bone

Surgical Anatomy of the Temporal Bone

Preoperative simulation using three‐dimensional printer in four temporal bone surgeries

Squamous cell carcinoma of ear and temporal bone: A retrospective study on clinicopathological predictors

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