Computer‐assisted distraction osteogenesis by Ilizarov's method

Simpson, Amber L.; Ma, Burton; Slagel, B.; Borschneck, Dan; Ellis, Randy E.

doi:10.1002/rcs.211

Cited by 19 publications

(11 citation statements)

References 17 publications

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“…The approach is simpler than that of Simpson et al, and involves mounting the fixator on a deformed artificial bone and performing CT scans in combination with navigation of fixator parameters using a tracking system for evaluation. 40 Our setup, therefore, enables engineers to improve the construction and software if any dysfunction or inaccuracies are detected, which wein line with Tang and colleaguesbelieve to be a paramount objective. 41 It further provides valuable insight for orthopedic surgeons, helping them to choose the best available fixator option for a given patient.…”

Section: Discussionsupporting

confidence: 53%

Accuracy of a hexapod parallel robot kinematics based external fixator

Faschingbauer

Heuer

Seide

et al. 2014

Robotics Computer Surgery

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Section: Discussionsupporting

confidence: 53%

Accuracy of a hexapod parallel robot kinematics based external fixator

Faschingbauer

Heuer

Seide

et al. 2014

Robotics Computer Surgery

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“…Other orthopedic surgeons had done a lot of research in these areas. Simpson et al used CT images for 3D reconstruction to perform virtual surgery [14]. He introduced a tracking stylus to digitize the connection holes as reference points on the TSF ring, or used the information of the bone surface for registration.…”

Section: Discussionmentioning

confidence: 99%

“…Radiographs cannot obtain accurate information about the limb's axial view: deformity parameters related to the rotation has to be estimated by physical examinations [13]. The measurement of the parameters is greatly disturbed by the subjective error of the measurer [14]. The above drawbacks often lead to poor alignment of the fracture after reduction.…”

mentioning

confidence: 99%

Comparing of the reduction accuracy of marker-3D measurement method and traditional radiograph measurement method in the treatment of patients with tibia fracture treated with Taylor Spatial Frame: a retrospective study

Liu

Li²,

Liu

et al. 2020

Preprint

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Background The Taylor Spatial Frame (TSF) has been widely used on tibia fractures. However, traditional radiograph measurement method is complicated and the reduction accuracy is not high enough for correcting residual deformities. We proposed the marker-3D measurement method to solve these problems. This study aimed to compare the reduction accuracy of the traditional radiograph measurement method and the marker-3D measurement method in tibia fracture treated with TSF. Methods From January 2016 to June 2019, A retrospective analysis was performed based on the patients with tibia fracture treated with TSF in Tianjin Hospital. Forty-one patients were qualified for this study, including 21 patients in the marker-3D measurement group (experimental group) and 20 patients in the traditional radiograph measurement group (control group). In the experimental group, CT scan was performed for 3D reconstruction with 6 markers installed on the TSF, to determine the adjusting plan; in the control group, the Anteroposterior (AP) and Lateral radiographs were performed for the deformity parameters. All fractures were corrected after TSF adjusting, and then X-rays were taken to measure the residual deformities. Results All patients reached functional reduction. The residual displacement deformity (RDD) in AP radiograph was 0.5 (0, 1.72) mm in experimental group and 1.74 (0.43, 3.67) mm in control group; the residual angle deformity (RAD) in AP radiograph was 0 (0, 1.25) ° in experimental group and 1.25 (0.62, 1.95) °in control group. As to the Lateral radiograph, the RDD was 0 (0, 1.22) mm in experimental group and 2.02 (0, 3.74) mm in control group; the RAD was 0 (0, 0) ° in experimental group and 1.42 (0, 1.93) ° in control group. Significant differences in all above comparisons were found between the groups (AP radiograph RDD: P = 0.024, RAD: P = 0.020; Lateral radiograph RDD: P = 0.016, RAD: P = 0.004). Conclusion Both groups achieved satisfactory fracture reduction. However, the residual deformities in the experimental group were significantly smaller. This study proved that the marker-3D measurement method could further improve the accuracy of the reduction.

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“…The development of 3D-CT has revolutionized the field of imaging in a variety of orthopedic surgeries. Reconstructed 3D-CT images have been widely used for preoperative planning [13][14][15][16][17][18]. Here we conducted a 3D-CT assessment of alignment for lower limb deformities using such images.…”

Section: Discussionmentioning

confidence: 99%

Three-Dimensional Computed Tomography Assessment and Planning for Severe Lower Limb Deformities: A Case Report of Bilateral Fibular Hemimelia

Kawasaki¹,

Takahashi²,

Yasui³

2013

OJO

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To correct a lower limb deformity, orthopedic surgeons must have an exact understanding of the deformity. In general, preoperative planning is carried out using anterior-posterior (AP) and lateral radiographs. However, for severe cases with a combination of angular and rotational deformities of the lower limb, obtaining true AP and lateral radiographs is difficult and accurate calculation of the rotational deformity from radiographs is impossible. In this report, we propose to focus on preoperative assessment using three-dimensional (3D) reconstruction images of computed tomography (CT) scans for severe lower limb deformity in a patient with bilateral fibular hemimelia type II according to the Achterman-Kalamchi classification. She underwent bifocal deformity corrections of the bilateral tibiae using Taylor spatial frames in combination with the Ilizarov external fixator. Complete bony union was achieved, without angular deformity or limb length discrepancy.

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Computer‐assisted distraction osteogenesis by Ilizarov's method

Abstract: Our method achieved high accuracy and precision in a laboratory setting, and produced acceptable outcomes in a pilot clinical study.

Cited by 19 publications

References 17 publications

Accuracy of a hexapod parallel robot kinematics based external fixator

Accuracy of a hexapod parallel robot kinematics based external fixator

Comparing of the reduction accuracy of marker-3D measurement method and traditional radiograph measurement method in the treatment of patients with tibia fracture treated with Taylor Spatial Frame: a retrospective study

Three-Dimensional Computed Tomography Assessment and Planning for Severe Lower Limb Deformities: A Case Report of Bilateral Fibular Hemimelia

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