Use of an interlocking nail-hybrid fixator construct for distal femoral deformity correction in three dogs

2011 ◽  
Vol 24 (03) ◽  
pp. 236-245 ◽  
Author(s):  
K. M. Wendelburg ◽  
C. W. Sereda ◽  
D. J. Reese ◽  
J. L. Wheeler ◽  
D. D. Lewis
Keyword(s):  
Three Dimensional ◽  
Deformity Correction ◽  
Functional Results ◽  
Three Dimensional Model ◽  
Interlocking Nail ◽  
Hybrid External Fixator ◽  
Femoral Deformity ◽  
Locking Nail ◽  
Centre Of Rotation ◽  
Hybrid Fixator

SummaryOur purpose was to report the use of an inter-locking nail-hybrid external fixator construct to correct distal femoral deformities in three dogs. Radiographs, computed tomography and a three-dimensional model were used to plan the surgical procedure. A femoral osteotomy or ostectomy was performed at the level of the centre of rotation of angulation in all three dogs. Angular and rotational deformities were corrected acutely. Distraction osteo-genesis was performed to lengthen each femur postoperatively. All three dogs had additional anatomic abnormalities of the affected hindlimb complicating the correction of the distal femoral deformity. While the interlocking nail-hybrid fixator construct allowed for stable distraction of the femur, all three dogs developed complications during the postoperative convalescent period, and each had some degree of residual lameness. Lengthening the femur following acute deformity correction is problematic and additional experimental and clinical studies are warranted to decrease postoperative morbidity and improve functional results.

scholarly journals 3D-print in the planning of surgical treatment in the case of extraarticular deformity of lower limbs

2021 ◽  
pp. 45-50
Author(s):  
Kostiantyn Romanenko ◽  
Dmytro Prozorovskiy ◽  
Yaroslav Doluda
Keyword(s):  
3D Modeling ◽  
Three Dimensional ◽  
Ct Scanning ◽  
Functional Results ◽  
Lower Limbs ◽  
Three Dimensional Model ◽  
Technical Problems ◽  
3D Print ◽  
Sf 36 ◽  
Post Traumatic

An adequate planning of the curative measures is an important factor providing good functional results in the treatment of consequences of long bones injuries, in particular, malunions (post traumatic deformities). 3D-modeling in the preoperative planing gives an opportunity to assess both deformity itself and joint status. Visua­lization of injured segment with three-dimensional model manufactured using 3D-print in actual size (1:1 scale) provides additional capacities. Objective. To analyze the capacity provided by the usage of three-dimensional models of damaged segments in scale 1:1 while the planning of corrective surgery. Methods. Practicability of the usage of 3D-models, that was  worked out on the base of CT-scanning, was studied in the treatment of 52 patients with different post traumatic extraarticular deformities of femur and tibia, after the fractures with intraarticular extension. Clinical results were evaluated using SF-36 and AOFAS scales. Results. Calculation for 3D-modeling was performed mostly virtually using standard computer programs with 3D-reconstruction, but 3D-print technology was used for 5 patients with the most severe and sophisticated deformities of the lower extremities. Changes in functional outcomes, according to SF-36 and AOFAS, for the patients undergone opera- tive treatment, were positive at 12 month of follow-up. Fore­ign colleagues expose analogous results of the investigations and suggest that the modeling with 3D-print provides mostly more safe, reliable and standardized clinical decisions for every particular patient. Conclusions. Preoperative usage of 3D-print on the stage of preoperative planing allows the surgeons to simulate different stages of operative intervention on the physical model, thus, help him to realize possible technical problems, choose adequate fixation device and proper instrumentation. It facilitates the shortening of surgery time, elimination of possible complications rate and achievement, in sum, good functional results in the treatment of this kind of patients.

Three-Dimensional Model for Virtual Surgical Simulation, during Complex Skull Base Surgery and Aneurysm Surgery

Skull Base ◽  
2008 ◽  
Vol 18 (S 01) ◽  
Author(s):  
Akio Morita ◽  
Toshikazu Kimura ◽  
Shigeo Sora ◽  
Kengo Nishimura ◽  
Hisayuki Sugiyama ◽  
...  
Keyword(s):  
Skull Base ◽  
Surgical Simulation ◽  
Skull Base Surgery ◽  
Three Dimensional ◽  
Aneurysm Surgery ◽  
Dimensional Model ◽  
Three Dimensional Model

Digitalization system of ancient architecture decoration art based on neural network and image features

2020 ◽  
pp. 1-12
Author(s):  
Wu Xin ◽  
Qiu Daping
Keyword(s):  
Neural Network ◽  
Construction Industry ◽  
Three Dimensional ◽  
Performance Testing ◽  
Image Features ◽  
Three Dimensional Model ◽  
Performance Effect ◽  
Data Process ◽  
And Performance ◽  
Construction Mode

The inheritance and innovation of ancient architecture decoration art is an important way for the development of the construction industry. The data process of traditional ancient architecture decoration art is relatively backward, which leads to the obvious distortion of the digitalization of ancient architecture decoration art. In order to improve the digital effect of ancient architecture decoration art, based on neural network, this paper combines the image features to construct a neural network-based ancient architecture decoration art data system model, and graphically expresses the static construction mode and dynamic construction process of the architecture group. Based on this, three-dimensional model reconstruction and scene simulation experiments of architecture groups are realized. In order to verify the performance effect of the system proposed in this paper, it is verified through simulation and performance testing, and data visualization is performed through statistical methods. The result of the study shows that the digitalization effect of the ancient architecture decoration art proposed in this paper is good.

Phonetic iconicity in the evaluative morphology of a sample of Indo-European, Niger-Congo and Austronesian languages

2010 ◽  
Vol 3 (2) ◽  
pp. 156-180 ◽  
Author(s):  
Renáta Gregová ◽  
Lívia Körtvélyessy ◽  
Július Zimmermann
Keyword(s):  
Three Dimensional ◽  
Sound Symbolism ◽  
Three Dimensional Model ◽  
Austronesian Languages ◽  
Place Of Articulation ◽  
European Languages ◽  
Phonetic Symbolism ◽  
The Individual ◽  
Core Vocabulary

Universals Archive (Universal #1926) indicates a universal tendency for sound symbolism in reference to the expression of diminutives and augmentatives. The research ( Štekauer et al. 2009 ) carried out on European languages has not proved the tendency at all. Therefore, our research was extended to cover three language families – Indo-European, Niger-Congo and Austronesian. A three-step analysis examining different aspects of phonetic symbolism was carried out on a core vocabulary of 35 lexical items. A research sample was selected out of 60 languages. The evaluative markers were analyzed according to both phonetic classification of vowels and consonants and Ultan's and Niewenhuis' conclusions on the dominance of palatal and post-alveolar consonants in diminutive markers. Finally, the data obtained in our sample languages was evaluated by means of a three-dimensional model illustrating the place of articulation of the individual segments.

3D reconstruction and calculation of surface area and volume of bell pepper

2007 ◽  
Vol 3 (1) ◽  
pp. 89-113
Author(s):  
Zoltán Gillay ◽  
László Fenyvesi
Keyword(s):  
3D Reconstruction ◽  
Surface Area ◽  
Three Dimensional ◽  
Reference Method ◽  
Bell Pepper ◽  
Three Dimensional Model ◽  
Acceptable Error ◽  
Volume Calculation ◽  
Bell Peppers ◽  
Area And Volume

There was a method developed that generates the three-dimensional model of not axisymmetric produce, based on an arbitrary number of photos. The model can serve as a basis for calculating the surface area and the volume of produce. The efficiency of the reconstruction was tested on bell peppers and artificial shapes. In case of bell peppers 3-dimensional reconstruction was created from 4 images rotated in 45° angle intervals. The surface area and the volume were estimated on the basis of the reconstructed area. Furthermore, a new and simple reference method was devised to give precise results for the surface area of bell pepper. The results show that this 3D reconstruction-based surface area and volume calculation method is suitable to determine the surface area and volume of definite bell peppers with an acceptable error.

Sign in / Sign up

Export Citation Format

Share Document