Morphometry of the Thyroid and Cricoid Cartilages in Adults on C.T. Scan

Jain, Monica; Dhall, Usha

doi:10.1016/s0003-2778(10)80005-x

Cited by 32 publications

(58 citation statements)

References 8 publications

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“…Few studies on Indian population do exist which have described this variability in the North & Western Indian people. 4,8,12 Inter-specimen variability in the dimensions was noted in the current study as well. The results of the present work, except for a few parameters, are by and large in concurrence with those described by other workers who conducted similar studies.…”

Section: -11supporting

confidence: 77%

Morphometric analysis of human cricoid cartilage: a cadaveric study

Anand

Sharma

Sethi

et al. 2017

Int J Otorhinolaryngol Head Neck Surg

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Background: Cricoid cartilage is the only complete ring that surrounds the airway completely. Although it is smaller than thyroid cartilage and does not house any important structures like the thyroid cartilage (vocal folds), it forms an important cog in the upper airway. Renewed interest in subglottic stenosis recently has underscored the importance of detailed knowledge of cricoid cartilage. This study aims to augment the meagre information available on this important part of upper airway. Methods: Study design was on morphometric analysis and the setting was at tertiary health care centre. Thirty one adult human cadaveric larynges were obtained for this study. Using an electronic vernier caliper, different morphometric parameters of all the cricoid cartilages were noted down in a predesigned proforma in standard computer office software. The data thus obtained was collated and compared with existing literature. Results: The average inner transverse diameter (F: 15.05±1.02 mm; M: 17.52±2.64 mm) is greater than the average inner antero-posterior diameter (F: 12.71±0.45 mm; M: 14.11±2.55 mm). The average height of cricoid arch was F: 6.50±0.68 mm; M: 7.69±0.63 mm and the average height of cricoid lamina was F: 18.38±0.61 mm; M: 21.17±2.31 mm. Conclusions: Inter specimen disparity was noted in the various dimensions measured in the cricoid cartilages. The average transverse diameter was greater than the average antero-posterior diameter giving the cartilage an ovoid shape in nearly all specimens. Morphometrical data of the cricoid cartilage may be very useful in endotracheal intubation, laryngeal microsurgery and laryngeal framework surgery. These parameters can be helpful in evaluation of subglottic stenosis and its surgical repair.

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Section: -11supporting

confidence: 77%

Morphometric analysis of human cricoid cartilage: a cadaveric study

Anand

Sharma

Sethi

et al. 2017

Int J Otorhinolaryngol Head Neck Surg

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“…In a morphometric study that was conducted on CT images of the larynx of adult humans, it was observed that there was a statistically significant difference between males and females in regard to thyroid cartilage. In humans again, the measurements belonging to cricoid cartilage were found to be statistically significant between the genders except for antero-posterior diameter (Jain and Dhall 2010). Kotian et al (2014) conducted on the larynges of adult humans, found that measurements for males were greater.…”

Section: Discussionmentioning

confidence: 91%

“…In laryngology, the precise anatomical information about laryngeal cartilages is essential for the process of diagnosis and treatment (Breatnach et al 1984, Jain and Dhall 2010, Joshi et al 2011. This information is especially needed in some interventions including bronchoscope and endoscopes (Echel andSittel 1995, Kotian et al 2014).…”

Section: Introductionmentioning

confidence: 99%

“…The morphological development of fetal larynx in fetal life was investigated (Cicekcibasi et al 2008). Furthermore, morphometric properties of thyroid and cricoid cartilages were also revealed through CT images of adults (Jain and Dhall 2010). Dimensions of larynges belonging to adult men and women were measured using a digital caliper and differences between sexes were identified (Jotz et al 2014, Kotian et al 2014.…”

Section: Introductionmentioning

confidence: 99%

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Morphometric properties of larynx and trachea in the New Zealand rabbit

Özkadif¹,

Dayan²,

Demiraslan³

et al. 2016

EurasianJVetSci

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Yeni Zelanda tavşanında larynx ve tracheanın morfometrik özellikleri Eurasian Journal of Veterinary SciencesEurasian J Vet Sci, 2016, 32, 4, 208-213 208 Öz Amaç: Bu çalışma Yeni Zelanda tavşanlarında larynx kıkır-dakları ile trachea'nın morfometrik özelliklerini araştırarak, cinsiyetler arasındaki farklılıkları ortaya koymak amacıyla gerçekleştirildi.Gereç ve Yöntem: Çalışmada 6 erkek, 6 dişi olmak üzere toplam 12 adet sağlıklı erişkin Yeni Zelanda tavşanı kullanıldı. Baş ve boyun bölgesinin diseksiyonu sonucunda çıkartılan larynx kıkırdakları ve trachea'dan bazı ölçümler alınarak, istatistiki analiz yapıldı. İstatistiki önem P<0.05 düzeyinde belirlendi. Bulgular:Yapılan çalışma sonucunda Yeni Zelanda tavşanla-rında trachea ve larynx'in cinsiyetler arasında istatistiki olarak farklı olmadığı, sadece cartilago thyroidea'nın bazı ölçüm değerlerinde erkek ve dişiler arasında anlamlı fark olduğu tespit edildi.Öneri: Elde edilen bu morfometrik bilgilerin veteriner anatomi bilgi birikimine katkı sağlamasının yanısıra, oluşturula-bilecek olan model ve klinikte teşhis ve tedavi noktasında da bir ışık tutabileceği öngörülmektedir. Anahtar kelimeler: Larynx, trachea, morfometri, tavşan AbstractAim: This study was conducted to investigate the morphometric features of the larynx cartilages and trachea in New Zealand rabbits and reveal the differences between sexes. Material and Methods:In the study, the larynx cartilages belonging to a total of 12 healthy and adult New Zealand rabbits of both sexes (6 males, 6 females) were used. Some measurements were taken on the larynx cartilages and trachea, which had been taken out as a result of dissection of the head and neck, and statistical analyses were made. The statistical significance level was established at P<0.05. Results:Although the trachea and laynx related-measurements have no statistical difference between sexes, there was a statistical significance between sexes only in some values concerning the thyroid cartilage. Conclusion:In conclusion, it has been suggested that the results from this study will contribute to the present morphological knowledge on respiratory system and may shed light on the reconstructive anatomy and clinical procedures concerning this system.

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“…Even though the literature reveals number of studies on the laryngeal morphometry, the values vary considerably 4,6,7 . Most of the studies in the literature have focused on the individual cartilages of the larynx 2,5,8 . Very few studies have concentrated on the laryngeal morphometry as a whole.…”

Section: Discussionmentioning

confidence: 99%

Hemoglobinopati Hastalarında Hepatit B, Hepatit C ve HIV Seroprevalansı

İlhan¹,

Ekız²,

Acıpayam³

et al. 2014

Cukurova Medical Journal

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Purpose: The anatomy of the larynx and the knowledge of the possible variations in the laryngeal cartilages is important while interpreting head and neck radiographs of patients who exhibit anatomical or functional deviations. Morphometric data of the larynx may be useful in various otorhinolaryngology procedures and may also help in selecting the right dimensions of operational tools. Various studied have focused on the measurements of individual laryngeal cartilages. Very few authors have provided a holistic approach to the larynx and their values vary considerably. Therefore this study aims at providing appropriate information regarding the various laryngeal measurements thereby contributing to the field of advanced medicine. Methods:The study was performed on 25 sagittal sections of adult larynges (14 males, 11 females) in the department of Anatomy, Kasturba Medical College, Manipal. The different parameters of the larynx were measured using digital calipers. Appropriate statistical tests were applied. Results: The morphometric measurements of the larynx were more in males as compared to females. However females had a larger cricoid diameter. Conclusion:The study therefore opines that there is a significant difference in dimensions of larynges in males and females. The dimensions of larynx and internal cricoid diameter may act as a reliable guide for various interventions involving the upper respiratory passages. Key Words: larynx, morphometry, cricoid, cartilages ÖZET Amaç: Yapısal veya fonksiyonel deviyasyon gösteren hastaların baş ve boyun radyograflarını değerlendirirken, larinksin anatomik yapısı ve laringeal kıkırdakların muhtemel çeşitlerinin bilinmesi önemlidir. Larinksin morfometrik bilgisinin bilinmesi, çeşitli otorinolaringoloji prosedürlerinde faydalı olabilir ve operasyonda kullanılacak araçların boyutunun doğru seçimine de yardım edebilir. Çeşitli çalışmalar bireysel laringeal kıkırdak ölçümüne odaklanmıştır. Çok az yazar larinkse bütünsel bir yaklaşım göstermektedir ve değerleri önemli ölçüde farklılık göstermektedir. Bu yüzden bu çalışma, çeşitli laringeal ölçümlere ilişkin uygun bilgi sağlamayı böylece ileri tıp alanına katkı sağlamayı amaçlamaktadır. Materyal ve Metod: Bu çalışma Manipal, Kasturba Tıp Fakültesi, Anatomi Bölümünde yetişkin (14 erkek 11 kadın) larinkslerinde 25 sagital bölme üzerinde uygulandı. Larinkste farklı parametreler dijital kumpas kullanılarak ölçüldü. Uygun istatistiksel testler yapıldı. Bulgular: Kadınlara nazaran erkeklerde larinksin morfometrik ölçümleri daha fazlaydı. Ancak kadınlar daha geniş bir krikoid çapına sahiplerdi. Sonuç: Dolayısıyla bu çalışmaya göre kadınlar ve erkekler arasında larinks boyutu bakımından anlamlı bir farklılık vardır. Larinksin ve iç krikoid çapının boyutları, üst solunum yollarınıda içeren müdahaleler için güvenilir bir rehber olarak kullanılabilir.

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Morphometry of the Thyroid and Cricoid Cartilages in Adults on C.T. Scan

Cited by 32 publications

References 8 publications

Morphometric analysis of human cricoid cartilage: a cadaveric study

Morphometric analysis of human cricoid cartilage: a cadaveric study

Morphometric properties of larynx and trachea in the New Zealand rabbit

Hemoglobinopati Hastalarında Hepatit B, Hepatit C ve HIV Seroprevalansı

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