Computer-Based Periaxial Rotation Measurement for Aligning Fractured Femur Fragments: Method and Preliminary Results

Ron, Ofer; Joskowicz, Leo; Simkin, Ariel; Milgrom, Charles

doi:10.1007/3-540-45468-3_3

Cited by 7 publications

(5 citation statements)

References 10 publications

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“…[7][8][9][10] Ron et al reported a computerized bone reconstruction system, but it was restricted to simple two-fragment fractures. 11 This paper extends recently developed techniques from the computer vision and computer graphics community for reconstructing broken archaeological artifacts [12][13][14] for application to reconstructing highly fragmented bone fractures. While some of these techniques are directly applicable to bone reconstruction, there are many new challenges.…”

Section: Purposementioning

confidence: 88%

3D reconstruction of highly fragmented bone fractures

et al. 2007

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A system for the semi-automatic reconstruction of highly fragmented bone fractures, developed to aid in treatment planning, is presented. The system aligns bone fragment surfaces derived from segmentation of volumetric CT scan data. Each fragment surface is partitioned into intact-and fracture-surfaces, corresponding more or less to cortical and cancellous bone, respectively. A user then interactively selects fracture-surface patches in pairs that coarsely correspond. A final optimization step is performed automatically to solve the N-body rigid alignment problem. The work represents the first example of a 3D bone fracture reconstruction system and addresses two new problems unique to the reconstruction of fractured bones : (1) non-stationary noise inherent in surfaces generated from a difficult segmentation problem and (2) the possibility that a single fracture surface on a fragment may correspond to many other fragments.Keywords: 3D reconstruction, bone segmentation, surface registration, CT Figure 1. Radiographs of a range of comminuted tibial pilon factures, varying in the number of bone fragments, the amount of fragment dispersal and the degree of intra-articular extension into the ankle.

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Section: Purposementioning

confidence: 88%

3D reconstruction of highly fragmented bone fractures

et al. 2007

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“…Yet, these methods are designed to work with materials such as pottery and stone, which have different fracture mechanics than bone, they rely on highly-accurate laser-scan data, and they restrict their matching assumptions to have a 1-to-1 correspondence, i.e., solutions for these systems require that each fragment fracture surface matches with only one other fragment fracture surface. Early efforts toward computer-aided bone fracture reconstruction included a system for reconstructing a simple two-fragment bone fracture [4]. Completely interactive approaches for bone fragment manipulation and alignment have since been proposed by Scheuering et al [5] and by Harders et al [6].…”

Section: Contribution Of This Workmentioning

confidence: 99%

Virtual 3D bone fracture reconstruction via inter-fragmentary surface alignment

Zhou

Willis

Sui

et al. 2009

2009 IEEE 12th International Conference on Computer Vision Workshops, ICCV Workshops

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This paper presents a system for virtual reconstruction of comminuted bone fractures. The system takes as input a collection of bone fragment models represented as surface meshes, typically segmented from CT data. Users interact with fragment models in a virtual environment to reconstruct the fracture. In contrast to other approaches that are either completely automatic or completely interactive, the system attempts to strike a balance between interaction and automation. There are two key fracture reconstruction interactions: (1) specifying matching surface regions between fragment pairs and (2) initiating pairwise and global fragment alignment optimizations. Each match includes two fragment surface patches hypothesized to correspond in the reconstruction. Each alignment optimization initialized by the user triggers a 3D surface registration which takes as input: (1) the specified matches and (2) the current position of the fragments. The proposed system leverages domain knowledge via user interaction, and incorporates recent advancements in surface registration, to generate fragment reconstructions that are more accurate than manual methods and more reliable than completely automatic methods.

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“…Research on bone reconstruction is generally limited to simple fractures from a small number of fragments [ 11 ]. The recent emergence of 3D technologies has increased the potential to investigate personalized treatment of fractures [ 12 , 13 ], to propose preoperative plans [ 14 ], but also to develop customized treatment solutions in cases of simple fractures [ 15 ] or complex ones [ 16 , 17 ], specific instrumentation, osteointegrated implants for traumatology and orthopedics [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

Structured Integration and Alignment Algorithm: A Tool for Personalized Surgical Treatment of Tibial Plateau Fractures

Moldovan

Gligor

Bățagă

2021

JPM

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The planning of the surgical treatment in orthopedics, with the help of three-dimensional (3D) technologies, arouses an increasing scientific interest. Scientific literature describes some semi-automatic reconstructive attempts at fragmented bone fractures, but the matching algorithms presented are likely to improve. The aim of this paper is to develop a new method of aligning fragments of comminutive fractures. We have created a structured integration process and an alignment algorithm integrated in a clinical workflow for personalized surgical treatment of fractures. The provided solution is able to align the surfaces of bone fragments derived from the segmentation process of volumetric tomographic data. Positional uncertainties are eliminated interactively by the user, who selects the corresponding pairs of fracture surfaces. The final matching and the right alignment are performed automatically by the innovative alignment algorithm. The paper solves a challenging problem for the reconstruction of fractured bones, namely the choice of the optimal matching option from the situation in which surface portions of a fracture fragment correspond to multiple high fragments. The method is validated in practice for preoperative planning of a 49-year-old male patient who had a tibial plateau fracture of Schatzker type VI.

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Computer-Based Periaxial Rotation Measurement for Aligning Fractured Femur Fragments: Method and Preliminary Results

Cited by 7 publications

References 10 publications

3D reconstruction of highly fragmented bone fractures

3D reconstruction of highly fragmented bone fractures

Virtual 3D bone fracture reconstruction via inter-fragmentary surface alignment

Structured Integration and Alignment Algorithm: A Tool for Personalized Surgical Treatment of Tibial Plateau Fractures

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