scholarly journals Evolution in long bone deformity correction in the post-Ilizarov era: External to internal devices

2016 ◽  
Vol 2 (2) ◽  
pp. 61 ◽  
Author(s):  
ReggieC Hamdy
Keyword(s):  
Deformity Correction ◽  
Long Bone ◽  
Bone Deformity

scholarly journals Analysis of long-bone deformity correction in adolescents using osteosynthesis by intramedullary interlocking nails: a preliminary report

2016 ◽  
Vol 4 (3) ◽  
pp. 5-15
Author(s):  
Viktor A Vilensky ◽  
Edgar V Bukharev ◽  
Timur F Zubairov ◽  
Andrey A Pozdeev ◽  
Aleksander P Pozdeev ◽  
...  
Keyword(s):  
Preliminary Report ◽  
Deformity Correction ◽  
Functional Results ◽  
Lower Leg ◽  
Long Bone ◽  
Residual Deformity ◽  
Bone Deformity ◽  
Functional Scale ◽  
Fixation Frame ◽  
Bone Deformities

Aims. The purpose of this study was to analyze the initial experience with adolescents treated for long-bone deformities of the lower extremities of different etiologies using osteotomies and fixation by interlocking nails.Materials and methods. We analyzed the accuracy of long-bone deformity correction using referent lines and angles, the time of consolidation, number of complications, and functional result.Results. We found that the accuracy of femur deformity correction (dependent on the complicity of the deformity), as estimated by different parameters, varied from 77.8% to 91.7%. Simple deformities and deformities of moderate complicity had the most accurate correction; the group of complex multiplanar deformities of the femur had the least accurate correction. This group included five cases of residual deformity, in which three of these had an angle of residual deformity <10°. The accuracy of leg deformity correction was 90%. Evaluation of the functional results using the Lower Extremity Functional Scale indicated the high functionality of the method used.Conclusions. Correction of long-bone deformities using intramedullary osteosynthesis by interlocking nails is an effective treatment of all types of femur and lower leg deformities. When treating complex deformities of the femur, the path to operative treatment should be complex and in most cases the nailing should be accompanied by intraoperative external fixation frame assistance.

scholarly journals The results of bone deformity correction using a spider frame with web-based software for lower extremity long bone deformities

SICOT-J ◽  
2016 ◽  
Vol 2 ◽  
pp. 11
Author(s):  
Ali Çağrı Tekin ◽  
Haluk Çabuk ◽  
Süleyman Semih Dedeoğlu ◽  
Mehmet Selçuk Saygılı ◽  
Müjdat Adaş ◽  
...  
Keyword(s):  
Lower Extremity ◽  
Deformity Correction ◽  
Long Bone ◽  
Bone Deformity ◽  
Web Based ◽  
Bone Deformities

Mathematical analysis of single-cut osteotomy for complex long bone deformity

1989 ◽  
Vol 22 (11-12) ◽  
pp. 1271-1278 ◽  
Author(s):  
Brian P. Sangeorzan ◽  
Robert P. Judd ◽  
Bruce J. Sangeorzan
Keyword(s):  
Mathematical Analysis ◽  
Long Bone ◽  
Bone Deformity

A Method to Determine the True Angulation of Long Bone Deformity

1987 ◽  
Vol &NA; (218) ◽  
pp. 191???194 ◽  
Author(s):  
MICHAEL RIES ◽  
DONALD ONEILL
Keyword(s):  
Long Bone ◽  
Bone Deformity

scholarly journals Orthopedic hexapods: history, present and prospects

2015 ◽  
Vol 3 (1) ◽  
pp. 61-69 ◽  
Author(s):  
Viktor Aleksandrovich Vilensky ◽  
Aleksander Pavlovich Pozdeev ◽  
Edgar Valentinovich Bukharev ◽  
Andrey Aleksandrovich Pozdeev ◽  
Timur Faizovich Zubairov ◽  
...  
Keyword(s):  
Degrees Of Freedom ◽  
Deformity Correction ◽  
Long Bone ◽  
Computer Assisted ◽  
Software Application ◽  
Six Degrees Of Freedom ◽  
Fixation Devices ◽  
Special Software ◽  
History Of ◽  
Bone Fragments

The article is dedicated to computer-assisted external fixation devices, so-called hexapods. The main advantage of these frames is capability to make mathematically precise correction of bone fragments in three planes and six degrees of freedom on the base of calculations made in special software application. Recently these devices are mostly applied in long bone deformity correction but the sphere of its effective useis not limited by only this direction. The article presents the history of investigation of these devices, their development, implemented comparative analysis of the basic hexapods: TSF (Taylor Spatial Frame), IHA (Ilizarov Hexapod Apparatus) and Ortho-SUV Frame.

scholarly journals Long bone fracture reduction and deformity correction using the hexapod external fixator with a new method: a feasible study and preliminary results

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Yanshi Liu ◽  
Hong Li ◽  
Jialin Liu ◽  
Xingpeng Zhang ◽  
Maimaiaili Yushan ◽  
...  
Keyword(s):  
Soft Tissue ◽  
External Fixator ◽  
Bone Fracture ◽  
Three Dimensional ◽  
Deformity Correction ◽  
Fracture Reduction ◽  
Long Bone ◽  
Computer Assisted ◽  
Electronic Prescription ◽  
Long Bone Fracture

Abstract Background The hexapod external fixator (HEF), such as the Taylor spatial frame (TSF), offering the ability of multidirectional deformities correction without changing the structure, whereas there are so many parameters for surgeons to measure and subjective errors will occur inevitably. The purpose of this study was to evaluate the effectiveness of a new method based on computer-assisted three-dimensional (3D) reconstruction and hexapod external fixator for long bone fracture reduction and deformity correction without calculating the parameters needed by the traditional usage. Methods This retrospective study consists of 25 patients with high-energy tibial diaphyseal fractures treated by the HEF at our institution from January 2016 to June 2018, including 22 males and 3 females with a mean age of 42 years (range 14–63 years). Hexapod external fixator treatments were conducted to manage the multiplanar posttraumatic deformities with/without poor soft-tissue that were not suitable for internal fixation. Computer-assisted 3D reconstruction and trajectory planning of the reduction by Mimics were applied to perform virtual fracture reduction and deformity correction. The electronic prescription derived from the length changes of the six struts were calculated by SolidWorks. Fracture reduction was conducted by adjusting the lengths of the six struts according to the electronic prescription. Effectiveness was evaluated by the standard anteroposterior (AP) and lateral X-rays after reduction. Results All patients acquired excellent functional reduction and achieved bone union in our study. After correction, the mean translation (1.0 ± 1.1 mm) and angulation (0.8 ± 1.2°) on the coronal plane, mean translation (0.8 ± 1.0 mm) and angulation (0.3 ± 0.8°) on the sagittal plane were all less than those (6.1 ± 4.9 mm, 5.2 ± 3.2°, 4.2 ± 3.5 mm, 4.0 ± 2.5°) before correction (P < 0.05). Conclusions The computer-assisted three-dimensional reconstruction and hexapod external fixator-based method allows surgeons to conduct long bone fracture reduction and deformity correction without calculating the parameters needed by the traditional usage. This method is suggested to apply in those unusually complex cases with extensive soft tissue damage and where internal fixation is impossible or inadvisable.

scholarly journals Staged correction trajectory with hexapod external fixator for the satisfactory reduction of acute long bone shaft fracture

2021 ◽  
Author(s):  
Yanshi Liu ◽  
Fei Wang ◽  
Kai Liu ◽  
Feiyu Cai ◽  
Xingpeng Zhang ◽  
...  
Keyword(s):  
External Fixation ◽  
Clinical Outcomes ◽  
External Fixator ◽  
Demographic Data ◽  
Deformity Correction ◽  
Shaft Fracture ◽  
Long Bone ◽  
Fixation Time ◽  
Before And After ◽  
One Step

Abstract Backgroud: When deformity correction and fracture reduction are conducted in acute long bone shaft fracture using the hexapod external fixator, the collision and interference between the irregular bony end in the reduction process often result in an incomplete reduction and a time-consuming procedure. The purpose of this study was to present and determine the clinical effectiveness of staged correction trajectory with hexapod external fixator for the satisfactory reduction of acute long bone shaft fracture. Methods A total of 57 patients with acute tibial shaft fractures consented to hexapod external fixator treatment in our institution were retrospectively analyzed from June 2016 to February 2020. Thirty-one cases (Group Ⅰ) underwent a conventional one-step reduction trajectory from June 2016 to July 2018. Starting in September 2018, the other twenty-six patients (Group Ⅱ) all underwent staged correction trajectory (three key points reduction trajectory of “extension-rotation-reduction”). The demographic data, residual deformities before and after correction, number of repeated radiographs after the first postoperative radiograph, duration of deformity correction, and external fixation time were documented and analyzed. At the last clinical visit, the Johner-Wruhs criteria were used to evaluate the final clinical outcomes. Results All the 57 patients achieved satisfactory fracture reduction and bone union. There were no statistically significant differences between the two groups in demographic data, residual deformities before and after correction, external fixation time, and final clinical outcomes (P > 0.05). The average number of repeated radiographs after the first postoperative radiograph and mean duration of deformity correction in Group Ⅱ (1.3 times, 2.9 days) were all less than those in Group Ⅰ (2.3 times, 5.1 days) (P < 0.05). Conclusion Compared with the conventional one-step reduction trajectory, there are no statistically significant differences in the final clinical outcomes, but the staged correction trajectory is a superior method with the advantages of less repeated radiographs and reduction duration.

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