Validation of a novel, low-fidelity virtual reality simulator and an artificial intelligence assessment approach for peg transfer laparoscopic training.

Simulators are widely used in medical education, but objective and automatic assessment is not feasible with low-fidelity simulators, which can be solved with artificial intelligence (AI) and virtual reality (VR) solutions. The effectiveness of a custom-made VR simulator and an AI-based evaluator of a laparoscopic peg transfer exercise was investigated. Sixty medical students were involved in a single-blinded randomised controlled study to compare the VR simulator with the traditional box trainer.

Neck-shaft angle measurement in children: accuracy of the conventional radiography-based (2D) methods compared to 3D reconstructions.

Aim of this study was to examine the accuracy of widely used conventional radiography-based (2D) neck-shaft angle measurements compared to 3D reconstruction. In our retrospective study, EOS 2D/3D images of 156 patients (312 limbs) were selected from our database (4-16 years old: 6 girls and 6 boys/year), where no pathology was revealed. Using the 2D modality of the EOS method neck-shaft angle was measured using the "biggest diameter" and "circle fitting" techniques to define the femoral neck axis and 1/3, 1/2 and full femur to determine the femoral shaft axis.

Evaluation and Comparison of Traditional Plaster and Fiberglass Casts with 3D-Printed PLA and PLA-CaCO Composite Splints for Bone-Fracture Management.

Bone fractures pose a serious challenge for the healthcare system worldwide. A total of 17.5% of these fractures occur in the distal radius.

Alternative methods for skeletal maturity estimation with the EOS scanner-Experience from 934 patients.

Background: Hand-wrist bone age assessment methods are not possible on typical EOS 2D/3D images without body position modifications that may affect spinal position. We aimed to identify and assess lesser known bone age assessment alternatives that may be applied retrospectively and without the need for extra imaging.

Materials And Methods: After review of 2857 articles, nine bone age methods were selected and applied retrospectively in pilot study (thirteen individuals), followed by evaluation of EOS images of 934 4-24-year-olds.

[Three-dimensional efficacy of correction surgeries in adolescent idiopathic scoliosis].

Unlabelled: Összefoglaló. Bevezetés: Nincs egységesen elfogadott álláspont, hogy a serdülőkori idiopathiás gerincferdülés sebészi korrekcióját melyik életkorban optimális elvégezni. Világszerte 11 éves kortól akár (kezeletlen esetben) 50-60 éves korig végeznek fúziós műtétet a betegségben, 63-83%-os átlagos koronális síkú korrekciós hatékonysággal.

Effectivity of near-peer teaching in training of basic surgical skills - a randomized controlled trial.

Background: Near-peer teaching (NPT) is a special way of teaching where the tutor is one or more academic years ahead of the person being tutored. The literature agrees on the benefits of the method, but there are only a few publications examining its effectiveness using objective methods. The aim of our study was to examine the effectiveness of NPT in the training of basic surgical skills.

Maximal Axial Vertebral Rotation in Adolescent Idiopathic Scoliosis: Is the Apical Vertebra the Most Rotated?

Study Design: Retrospective cross-sectional study.

Objectives: It is generally believed that the apical vertebra has the largest axial rotation in adolescent idiopathic scoliosis. We investigated the relationship between apical axial vertebral rotation (apicalAVR) and maximal axial vertebral rotation (maxAVR) in both major and minor curves using biplanar stereo-imaging.

Analysis of Proximal Femoral Parameters in Adolescent Idiopathic Scoliosis.

Background: Assessment of the proximal femoral parameters in adolescent idiopathic scoliosis using three-dimensional radiological image reconstructions may allow better characterization than conventional techniques.

Methods: EOS 3D reconstructions of spines and femurs of 320 scoliotic patients (10-18 years old) and 350 control children lacking spinal abnormality were performed and 6 proximal femoral parameters measured.

Results: Individuals with adolescent idiopathic scoliosis showed a small but statistically significant decrease in neck shaft angle (average difference=2.

[Bone age - alternatives for skeletal maturity assessment for the EOS scanner].

Introduction: Hand and wrist bone age assessment methods cannot be performed when using the recommended patient position within the EOS scanner.

Aim: We aimed to assess alternative methods for use with the EOS.

Method: After investigating 9 alternatives, five methods were selected - cervical vertebra (Hassel-Farman), iliac crest (Risser 'plus'), hip (Oxford), knee (O'Connor), calcaneus (Nicholson) - and applied to EOS scans of 114, 2-21-year-old normal individuals.

Sagittal plane assessment of spino-pelvic complex in a Central European population with adolescent idiopathic scoliosis: a case control study.

Background: Scoliosis is a complex three-dimensional deformity. While the frontal profile is well understood, increasing attention has turned to balance in the sagittal plane. The present study evaluated changes in sagittal spino-pelvic parameters in a large Hungarian population with adolescent idiopathic scoliosis.

The effect of coronal decompensation on the biomechanical parameters in lower limbs in adolescent idiopathic scoliosis.

Study Hypothesis: We hypothesized that altered coronal balance in adolescent scoliosis leads to asymmetric stress on the lower limbs, with subsequent effects on bone maturation and later morphology. We aimed to assess the correlation between the biomechanical parameters of the lower limbs and coronal balance in idiopathic scoliosis.

Materials And Methods: In this study, EOS images of 280 patients and 56 controls were randomly selected from our clinics' database.

Determination and correlation of lower limb anatomical parameters and bone age during skeletal growth (based on 1005 cases).

The aim of this study was to evaluate bone age and its correlation with the lower limbs' developing skeletal anatomy during growth. 1005 children and young adults were evaluated for bone age and 14 different parameters measured on lower-limb reconstructions from radiological examinations carried out with an EOS 2D/3D system in the course of routine orthopedic indicated diagnostic practice. Cervical vertebral morphology evaluation for bone age using the Hassel-Farman method, which describes six stages of maturity, was selected.

Three dimensional radiological imaging of normal lower-limb alignment in children.

Purpose: Our study aimed at evaluating age- and gender-specific references describing lower-limb alignment in a large population of children using an accurate and reliable method (EOS 2D/3D).

Methods: From our database, we selected 523 EOS records suitable for 3D modelling representing age groups between two and 16 years in which no relevant deviation influencing lower-limb biomechanics could be observed (the majority of the examined population had mild scoliosis). We performed reconstruction of both lower limbs, thus obtaining the value of the mechanical tibiofemoral angle (mTFA) and the femoral mechanical axis-femoral shaft angle (FM-FS) and calculated the anatomical tibiofemoral angle (aTFA) from previous parameters.

[Evaluation of the usefulness of the EOS 2D/3D system for the measurement of lower limbs anatomical and biomechanical parameters in children].

Introduction: Lower limbs anatomical and biomechanical parameters are essential in several paediatric orthopaedic disease, which makes their exact measurement necessary.

Aim: The aim of the author was to evaluate the reliability of the EOS 2D/3D System, a 3D reconstruction capable imaging device in children.

Method: 3D reconstructions were performed in 523 cases aged between 2 and 16 years in whom no abnormality influencing lower limbs biomechanics was observed.

Three-dimensional quantitative analysis of the proximal femur and the pelvis in children and adolescents using an upright biplanar slot-scanning X-ray system.

Background: The anatomy and biomechanics of the pelvis and lower limbs play a key role in the development of orthopaedic disorders.

Objective: This study aimed to establish normal reference standards for the measurement of gender-specific pelvic and femoral parameters in children and adolescents with the EOS 2-D/3-D system.

Materials And Methods: EOS 2-D images of 508 individuals (ages 4-16 years) were obtained as part of routine diagnostics.