scholarly journals Endaural Endoscopic Atticoantrotomy (Retrograde Mastoidectomy) using a Constant Suction Bone-drilling Technique

10.3791/62450 ◽  
2021 ◽  
Author(s):  
Zhen Gao ◽  
Xian-hao Jia ◽  
Ya-sheng Yuan
Keyword(s):  
Bone Drilling ◽  
Drilling Technique ◽  
Constant Suction

Parametric effect of vibrational drilling on osteonecrosis and comparative histopathology study with conventional drilling of cortical bone

2018 ◽  
Vol 232 (10) ◽  
pp. 975-986 ◽  
Author(s):  
Gurmeet Singh ◽  
Vivek Jain ◽  
Dheeraj Gupta ◽  
Abhimanyu Sharma
Keyword(s):  
Healing Process ◽  
Optimization Technique ◽  
Optimal Solution ◽  
Influential Factor ◽  
Bone Drilling ◽  
Taguchi Optimization ◽  
Morphological Comparison ◽  
Drilling Parameters ◽  
Drilling Technique ◽  
Conventional Drilling

Drilling to the bones is required to re-fix them at their appropriate location using the implants. During drilling some thermal and mechanical losses may be faced by the bone and surrounding tissues which may lead to the serious issue in terms of osteonecrosis. Osteonecrosis is one of the reasons for impaired healing process for the fractured bone and causes further complications like low pullout strength of cortical screws and bone crush. In order to maintain the low temperature during bone drilling, this study focused the thermal damages observed by the bone and its surrounding during bone drilling and compared the results of conventional and vibrational drilling techniques. Parametric optimization under the influence of vibrations was also studied. Drilling has been done with the both drilling technique, and results were recorded in terms of temperature raise. Optimal solution for drilling the bone has been accessed using Taguchi optimization technique. The morphological comparison has been done for conventional and vibrational drilled holes using histopathology of drilled bones sections. From Taguchi optimization, it was observed that R1F1A1 is the parametric combination which gives minimum thermal injury to the bone in case of vibrational bone drilling. Analysis of variance cleared that the all parameters involved significantly affect the results (P ≤ 0.05). Rotational speed was found to be the most influential factor among the all with 80.53%. Histopathology studies of bone specimens help to understand how heat generation affects the bone morphology during drilling. The specimens drilled with vibrational drilling show less damage in terms of osteonecrosis near the drill site which shows the significance of vibrational drilling in case of orthopedic surgeries. The raise in temperature during drilling is collective result of different drilling parameters. Vibrational drilling was observed a helping tool to control the thermal damage in bone drilling.

Towards Defining Dental Drilling Competence, Part 1: A Study of Bone Drilling Technique

2010 ◽  
Vol 74 (9) ◽  
pp. 931-940 ◽  
Author(s):  
Ioanna Ioannou ◽  
Edmund Kazmierczak ◽  
Linda Stern ◽  
Andrew C. Smith ◽  
Lisa Z. Wise ◽  
...  
Keyword(s):  
Bone Drilling ◽  
Drilling Technique

Evaluation of a temporal bone prototype by experts in otology

2014 ◽  
Vol 128 (7) ◽  
pp. 586-590 ◽  
Author(s):  
M Chenebaux ◽  
E Lescanne ◽  
A Robier ◽  
S Kim ◽  
D Bakhos
Keyword(s):  
Temporal Bone ◽  
Drilling Process ◽  
Bone Drilling ◽  
Posterior Semicircular Canal ◽  
Satisfaction Rate ◽  
Computed Tomography Images ◽  
Item Questionnaire ◽  
Drilling Technique ◽  
Temporal Bones

AbstractBackground:Inexperienced otologists require training on the temporal bone drilling process, prior to any surgical activity. The shortage of cadaveric temporal bones exerts pressure to create realistic physical prototypes. This paper describes the evaluation by otology experts of a specially developed temporal bone resin model.Methods:Computed tomography images were transformed into digital files, and anatomically identical right temporal bone models were created using stereolithography. These hand-painted resin prototypes were sent to 25 otologists, accompanied by a 20-item questionnaire.Results:Satisfaction rate was 92 per cent. The overall prototype score was 48.87 out of 60. Average scores were: 12.63 out of 15 for anatomy-morphology, 6.98 out of 9 for quality of drilling, 16.74 out of 21 for identification of anatomical elements and 7.41 out of 9 for stages of drilling. Limitations of the model included an excessively vivid facial nerve colour and difficulty in identifying the posterior semicircular canal. Disadvantages related to the thickness of the resin and its residues were identified.Conclusion:The prototype appears to provide an attractive solution to the shortage of cadaveric temporal bones. However, interest in the model for drilling technique training for inexperienced otologists has not yet been assessed.

No Wait-On-Cement (NO WOC) Successfully Applied in Pertamina Hulu Mahakam (PHM) and Creating Significant Well Rig Time Saving

2020 ◽  
Author(s):  
H., A. Sinaga
Keyword(s):  
Hard Work ◽  
Time Saving ◽  
Drilling Technique ◽  
Single Well ◽  
No Wait

As the new operator of the Mahakam Block started in 2017, Pertamina Hulu Mahakam (PHM) were challenged to ramp up operations in order to combat massive production decline. At the same time, reducing well cost was also a paramount importance to ensure that the economic targets of the wells were achieved following the reduction of well stakes. One of the remaining unsolved enigmas is how to achieve No Wait-on-Cement (NO WOC) on surface diverter section as this will create a lot of rig time saving both on single well and batch operations. The project begins with several different kinds of proposal until the best solutions were identified fulfilling safety, simplicity of operations and acceptable cost and finally were put in place with very satisfying results. The main key principle is conversion wellhead stages following well architecture while there were several modifications of casing hanger, adapter, additional materials & modified procedure. Rig time saving, additional operational gain and a promising new “breakthrough” of drilling technique become a significant impact of the successful effort. Now the method has become a standard in PHM operations and has already been integrated to SDI (Standard Drilling Instruction). The merit of this endless hard work could possibly be gained by other operators as it will create more added values both tangible and intangible.

Deep Hole Drilling Technique (DHD)

2019 ◽  
Vol 88 (6) ◽  
pp. 485-488
Author(s):  
Shinji KAWAI ◽  
Takuya NAGAI ◽  
Shigetaka OKANO
Keyword(s):  
Hole Drilling ◽  
Deep Hole ◽  
Deep Hole Drilling ◽  
Drilling Technique

Maximising the efficiency of Menard pressuremeter testing in cohesive materials by a cookie-cutter drilling technique

2021 ◽  
Vol 287 ◽  
pp. 106096
Author(s):  
Ali Tolooiyan ◽  
Ashley P. Dyson ◽  
Mojtaba Karami ◽  
Tahereh Shaghaghi ◽  
Mohsen Ghadrdan ◽  
...  
Keyword(s):  
Drilling Technique ◽  
Cohesive Materials

Cortical bone drilling: A time series experimental analysis of thermal characteristics

2021 ◽  
Vol 64 ◽  
pp. 606-619
Author(s):  
Shihao Li ◽  
Liming Shu ◽  
Toru Kizaki ◽  
Wei Bai ◽  
Makoto Terashima ◽  
...  
Keyword(s):  
Time Series ◽  
Cortical Bone ◽  
Experimental Analysis ◽  
Thermal Characteristics ◽  
Bone Drilling

Temperature and force generation in surgical bone drilling

2021 ◽  
Author(s):  
Chandana Samarasinghe ◽  
Mohammad Uddin ◽  
Saiful Bari ◽  
Cory Xian
Keyword(s):  
Force Generation ◽  
Bone Drilling
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