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Statistical model-based segmentation of the proximal femur in digital antero-posterior (AP) pelvic radiographs

Weiguo Xie, Jochen Franke, Cheng Chen, Paul A. Grützner, Steffen Schumann, Lutz-P. Nolte, Guoyan Zheng
2013 International Journal of Computer Assisted Radiology and Surgery  
Purpose Segmentation of the proximal femur in digital antero-posterior (AP) pelvic radiographs is required to create a three-dimensional model of the hip joint for use in planning and treatment.  ...  Methods Using manual annotations on 100 AP pelvic radiographs, a statistical shape model (SSM) and a statistical appearance model (SAM) of the femur contour were constructed.  ...  Acknowledgments This works was partially supported by the Swiss National Science foundation via project No. 205321_138009. Conflict of interest Weiguo Xie, Jochen Franke, Cheng Chen, Paul A.  ... 
doi:10.1007/s11548-013-0932-5 pmid:23900851 fatcat:cvfvu45bynbiffs3rvdvjylqke

Advances in FAI Imaging: a Focused Review

Vasco V. Mascarenhas, António Caetano, Pedro Dantas, Paulo Rego
2020 Current Reviews in Musculoskeletal Medicine  
Diagnostic hip imaging has dramatically changed in the past years, with the arrival of new imaging techniques and the development of magnetic resonance imaging (MRI).  ...  Femoroacetabular impingement (FAI) is one of the main causes of hip pain in young adults and poses clinical challenges which have placed it at the forefront of imaging and orthopedics.  ...  Human and Animal Rights and Informed Consent This article does not contain any studies with human or animal subjects performed by any of the authors.  ... 
doi:10.1007/s12178-020-09663-7 pmid:32845416 fatcat:ncmmjkvghzh6vartjbwbw3tgmq

Comparison of two metaphyseal-fitting (short) femoral stems in primary total hip arthroplasty: study protocol for a prospective randomized clinical trial with additional biomechanical testing and finite element analysis

I. Tatani, A. Panagopoulos, I. Diamantakos, G. Sakellaropoulos, Sp Pantelakis, P. Megas
2019 Trials  
In the experimental study, the transmission of forces as measured by cortical surface-strain distribution in the proximal femur will be evaluated using digital image correlation (DIC), first on the non-implanted  ...  Based on both experimental testing and finite element modeling, the proposed study has been designed to compare the biomechanical properties and clinical performance of the newly introduced short-stem  ...  Acknowledgements We thank everyone who has contributed and will contribute to the study; the funders, sponsors, and in particular the patients who consent to be randomized and participate in the study.  ... 
doi:10.1186/s13063-019-3445-x pmid:31208433 pmcid:PMC6580512 fatcat:5vlk4vryfvdarhy2v3sw7w4a7y

Artificial Intelligence for diagnosis of fractures on plain radiographs: a scoping review of current literature

Clare Rainey, Jonathan McConnell, Ciara Hughes, Raymond Bond, Sonyia McFadden
2021 Intelligence-Based Medicine  
Aim: To complete a scoping review of the literature investigating the performance of artificial intelligence (AI) systems currently in development for their ability to detect fractures on plain radiographic  ...  A standardisation of the reporting metrics and methods would permit comparison of proposed models and training methods which may accelerate the testing of AI systems in the clinical setting.  ...  Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper  ... 
doi:10.1016/j.ibmed.2021.100033 fatcat:sxblupopdjd67knggqwgbvlewi

EPOS 33rd Annual Meeting

2014 Journal of Children's Orthopaedics  
Fractures united well in 6 weeks. Age, sex, fracture side, Gartland type, number of pins, and days to pins removal were comparable between the two groups.  ...  The methods of pin care are variable and controversial. This study is to compare the infection rate between daily pin care and no pin care.  ...  Radiographic angles of antero-posterior (AP) radiographs and lateral radiographs in maximum dorsiflexion and in standing position were measured.  ... 
doi:10.1007/s11832-014-0573-4 pmid:24634289 pmcid:PMC3955429 fatcat:xbvbzwzd7jggbnd5nkrxbbasoe

Robusticity versus Shape: The Functional Interpretation of Neandertal Appendicular Morphology

Erik TRINKAUS, Steven E. CHURCHILL, Isabelle VILLEMEUR, Kathy G. RILEY, Julie A. HELLER, Christopher B. RUFF
1991 The Journal of Anthropological Society of Nippon  
The interpretation of the evolution of human manipulative and locomotor behavior from hominid fossil remains during the Pleistocene requires a clear distinction between changes in relative musculo-skeletal  ...  A review of ongoing research on Neandertal appendicular morphology with respect to the scapulo-humeral articulation, the pollical and mid-carpal carpo-metacarpal articulations, proximal femoral trabecular  ...  , predominantly medio-lateral in the proximal shaft and antero-posterior in the midshaft.  ... 
doi:10.1537/ase1911.99.257 fatcat:plevzt5dorecxa23ah4xs5p5ha

The Subadult Virtual Anthropology Database (SVAD): An Accessible Repository of Contemporary Subadult Reference Data

Kyra E. Stull, Louise K. Corron
2022 Forensic Sciences  
in Brazil (panoramic radiographs).  ...  in France, The Netherlands, Taiwan (region-specific CT scans), and South Africa (full-body Lodox Statscans), a private clinic in Angola (region-specific conventional radiographs), and a dental practice  ...  Conflicts of Interest: The authors declare no conflict of interest. The sponsors had no role in the design, execution, interpretation, or writing of the study.  ... 
doi:10.3390/forensicsci2010003 fatcat:3j25e642yrgntmirteqtfumauq

EPOS 34th Annual Meeting

2015 Journal of Children's Orthopaedics  
LEVEL-II/Tumours Materials and Methods: In 12 patients operated on for bone sarcoma resection, a postoperative magnetic resonance imaging of the resection specimens was obtained in order to assess the  ...  Discussion: MRI should be considered as a tool to give quick information about the adequacy of margins and to help the pathologist to focus on doubtful areas and to spare time in specimen analysis.  ...  A statistical shape model built from the femurs of 54 patients with cerebral palsy was used for modeling shape deformation.  ... 
doi:10.1007/s11832-015-0640-5 pmid:25716893 pmcid:PMC4353813 fatcat:e2phrdnu75ej5foia46d24x6vq

EPOS 35th Congress Meeting

2016 Journal of Children's Orthopaedics  
We propose a radiological tool to calculate the probability of a less invasive pelvic osteotomy in the residual dysplastic hip, which can be used on antero-posterior pelvis lateral hip radiographs.  ...  Cervical kyphosis correction was significantly better in the antero-posterior (82 %) than in the posterior only (54 %) fusion group (p = 0.046).  ...  The change of IMA was related to the change of AP-PMAA. There was a tendency for improvement of the HVA, but this was not statistically significant.  ... 
doi:10.1007/s11832-016-0715-y pmid:26984676 pmcid:PMC4794449 fatcat:vrbpd3gd6jfljlm4ieoo5q5clm

Reconstruction of knee anatomy from single-plane fluoroscopic x-ray based on a nonlinear statistical shape model

Jing Wu, Mohamed R. Mahfouz
2021 Journal of Medical Imaging  
Approach: We present a three-dimensional (3D) reconstruction scheme that automatically and accurately reconstructs the 3D knee anatomy from single-plane fluoroscopic x-ray based on a nonlinear statistical  ...  Conclusions: The proposed method demonstrates reliable 3D bone model reconstruction accuracy with successful elimination of prior 3D imaging and reduction of manual labor and radiation dose on patient  ...  Acknowledgments The authors would like to thank Dr. Joseph Michael Johnson, Dr. Emam E. Abdel Fatah, Dr. H. El Dakhakhni, and Jayne Dadmun for their help in preparing this paper.  ... 
doi:10.1117/1.jmi.8.1.016001 pmid:33457444 pmcid:PMC7797787 fatcat:ydq67gtuxvbmnkx2o5uy5atd6a

EPOS 34th Annual Meeting

2015 Journal of Children's Orthopaedics  
The remaining 3 of the 9 relapsed feet required surgery. 2 feet in a noncompliant patient had posterior releases and 1 noncompliant patient had PMR.Two more feet in brace-compliant patients, which were  ...  Compliance decreased over time as seen in the intervals: (1) 83 %, (2) 78 %, (3) 64 %, and (4) 50 %. 75 of the 78 feet (96 %) were rated good when bracing was discontinued.  ...  3D models based on biplanar radiographs (BPR).  ... 
doi:10.1007/s11832-015-0637-0 pmid:25754189 pmcid:PMC4353816 fatcat:xas6nlm73nhm5gik6dgkfietky

Abstract Book - 93rd National Congress of the Italian Society of Orthopaedics and Traumatology

2008 Journal of Orthopaedics and Traumatology  
Repair process of in vivo rabbit model showed improved cartilage healing of treated defects, compared to scaffold alone, and presence of collagen type II in the treated defects.  ...  non-culture based repair of full-thickness articular cartilage defects.  ...  pelvic fractures as determined by Orthopaedic Surgeons from pelvis antero-posterior plain radiograph.  ... 
doi:10.1007/s10195-008-0030-6 pmid:19384627 pmcid:PMC2657346 fatcat:ttw3od7s4rhyfncny4ielexzv4


2019 Global Spine Journal  
Statistically significant (P < .05) improvements in the trend of IDH and LL were noted at the follow-up.  ...  Adjacent segment degeneration assessed by radiographic evidence was found in 4 patients. Conclusion: Lumbar disk replacement showed significant improvement in clinical outcomes at 5 years.  ...  All LLIFs implants used were of a fixed AP width and lordosis (6 ) . Digital Cobb technique was used for measuring segmental and regional angles.  ... 
doi:10.1177/2192568219839731 pmid:31211024 pmcid:PMC6555104 fatcat:j5xjlgvjrjfddlzbwcwfoqseze

Supplementum 236: swiss orthopaedics, 79th annual meeting

2019 Swiss Medical Weekly  
At each follow-up, an AP pelvic view radiograph and a false-profile view was obtained.  ...  The statistical analysis of the patients with anterior instability with the control group showed a statistically significant difference in the index "lower" glenoid ap/Humerus ap.  ...  P101 Extra-Articular PAO Resection in one Piece with the Proximal Femur and Reconstruction with a Pelvic Prosthesis Methods: The 21 year old man experienced a sharp pain while playing squash during  ... 
doi:10.4414/smw.2019.20438 fatcat:fruhdz3hwre5td4osxvycvey5a

Robotic Assistance in Orthopaedic Surgery

1993 Clinical Orthopaedics and Related Research  
In het heffen van ecotaks op groene stroom zit een dusdanige tegenstrijdigheid, dat het wel zo moet zijn dat òf de naamgeving òf de regelgeving niet klopt. 12.  ...  Stellingen behorende bij het proefontwerp Computer assistance in orthopaedic surgery door Raymond J.E. Habets 1. Achter een goede chirurg staat steeds vaker een goede ingenieur.  ...  The most posterior position that can be reached without breaking through the back wall of the femur is just inside the antero-medial bundle.  ... 
doi:10.1097/00003086-199311000-00031 fatcat:rwl4kzywfrbzxjc66v53yqgjxm
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