Ostéotomies en rhinoplastie

Duron, J.-B.; Jallut, Y.; Nguyen, P.S.; Aiach, Gilbert; Bardot, J.

doi:10.1016/j.anplas.2014.07.013

Cited by 7 publications

(4 citation statements)

References 2 publications

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“…Incomplete fractures are sometimes preferable in older patients to avoid uncontrolled cracks, which can cause a collapse of the nasal vault, leading to an inverted V deformity (5,9,11). All these phenomena may be particularly difficult to detect, especially for young surgeons (12), and additional information on the properties of the osteotomy site could provide an interesting insight and potentially reduce the failure risks of these procedures.…”

Section: Introductionmentioning

confidence: 99%

Using an impact hammer to perform biomechanical measurements during osteotomies: Study of an animal model

Lamassoure

Giunta

Rosi

et al. 2021

Proc Inst Mech Eng H

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Osteotomies are common surgical procedures used for instance in rhinoplasty and usually performed using an osteotome impacted by a mallet. Visual control being difficult, osteotomies are often based on the surgeon proprioception to determine the number and energy of each impact. The aim of this study is to determine whether a hammer instrumented with a piezoelectric force sensor can be used to (i) follow the displacement of the osteotome and (ii) determine when the tip of the osteotome arrives in frontal bone, which corresponds to the end of the osteotomy pathway. Seven New Zealand White rabbit heads were collected, and two osteotomies were performed on their left and right nasal bones using the instrumented hammer to record the variation of the force as a function of time during each impact. The second peak time τ was derived from each signal while the displacement of the osteotome tip D was determined using video motion tracking. The results showed a significant correlation between τ and D ( ρ2 = 0.74), allowing to estimate the displacement of the osteotome through the measurement of τ. The values of τ measured in the frontal bone were significantly lower than in the nasal bone ( p<10−10), which allows to determine the transition between the nasal and frontal bones when τ becomes lower than 0.78 its initial averaged value. Although results should be validated clinically, this technology could be used by surgeons in the future as a decision support system to help assessing the osteotome environment.

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Section: Introductionmentioning

confidence: 99%

Using an impact hammer to perform biomechanical measurements during osteotomies: Study of an animal model

Lamassoure

Giunta

Rosi

et al. 2021

Proc Inst Mech Eng H

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“…Another example where complete fracture is not desired is to preserve the attachments between the nasal bones and upper lateral cartilages. An uncontrolled crack propagation may be associated to nasal vault collapse when these attachments become disrupted, leading to an inverted V deformity [5,11,9]. The surgeon has little sense of the mechanical properties of the bone tissue being osteotomized, thus making the apparition of adverse cracks, fractures or disruptions difficult to detect.…”

Section: Introductionmentioning

confidence: 99%

Using an Impact Hammer to Estimate Elastic Modulus and Thickness of a Sample During an Osteotomy

Hubert

Rosi

Bosc

et al. 2020

Journal of Biomechanical Engineering

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Performing an osteotomy with a surgical mallet and an osteotome is a delicate intervention mostly based on the surgeon proprioception. It remains difficult to assess the properties of bone tissue being osteotomized. Mispositioning of the osteotome or too strong impacts may lead to bone fractures which may have dramatic consequences. The objective of this study is to determine whether an instrumented hammer may be used to retrieve information on the material properties around the osteotome tip. A hammer equipped with a piezo-electric force sensor was used to impact 100 samples of different composite materials and thicknesses. A model-based inversion technique was developed based on the analysis of two indicators derived from the analysis of the variation of the force as a function of time in order to (i) classify the samples depending on their material types, (ii) determine the materials stiffness, and (iii) estimate the samples thicknesses. The model resulting from the classification using support vector machines (SVM) learning techniques can efficiently predict the material of a new sample, with an estimated 89% prediction performance. A good agreement between the forward analytical model and the experimental data was obtained, leading to an average error lower than 10% in the samples thickness estimation. Based on these results, navigation and decision-support tools could be developed and allows surgeons to adapt their surgical strategy in a patient-specific manner.

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“…Nazal dorsumun aşırı rezeksiyonu semer burun, açık çatı gibi deformitelere yol açabileceği gibi ters V deformitesi ve burun cildi düzensizlikleri gibi istenmeyen sonuçlara yol açabilir. [1,9,13,17]…”

Section: Discussionunclassified

“…Osteotomilerin temel endikasyonu burundaki eğriliklerin düzeltilmesi olmakla birlikte, nazal çatının daraltılması gereken durumlarda, hump rezeksiyonu sonrası açık kalan kemik çatının kapatılmasında da osteotomi yöntemi kullanılmaktadır. [1,2] Endonazal veya transkütanöz yapılabilen osteotomi işlemlerinde, klasik olarak standart osteomlar kullanılırken; son yıllarda bu amaçla testere, mikromotor veya piezo elektrik cerrahi yöntemleri de kullanılmaktadır. [2][3][4][5] Estetik burun ameliyatlarının sonuçlarının değerlendirildiği çalışmaların çoğunun konusu, ameliyat sonrası erken dönemde ödem, ağrı ve ekimozun azaltılmasına yönelik cerrahi yöntemler ve tedavi uygulamalarıdır.…”

Section: Methodsunclassified

Comparison of the efficacy of the use of an osteotome versus concave saw blade in lateral osteotomy during septorhinoplasty surgeries

Demirbilek¹

2020

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Ostéotomies en rhinoplastie

Cited by 7 publications

References 2 publications

Using an impact hammer to perform biomechanical measurements during osteotomies: Study of an animal model

Using an impact hammer to perform biomechanical measurements during osteotomies: Study of an animal model

Using an Impact Hammer to Estimate Elastic Modulus and Thickness of a Sample During an Osteotomy

Comparison of the efficacy of the use of an osteotome versus concave saw blade in lateral osteotomy during septorhinoplasty surgeries

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