publications | Siril Teja Dukkipati

2024

ORS 2024

Temporal Variation in Artificial Composite Spinal Surrogates through Inter-laboratory Spine Biomechanics Testing

Emma C Coltoff, Jeremy G Loss, Siril Teja Dukkipati , and 13 more authors

Orthopaedic Research Society (ORS) Annual Meeting, Feb 2024

@article{ORS2024a,
  author = {Coltoff, Emma C and Loss, Jeremy G and Dukkipati, Siril Teja and Driscoll, Mark and Wahbeh, Jenna M and Chastain, Kalle L and Pelletier, Matthew H and Wang, Tian and Brown, Philip J and Sangiorgio, Sophia and Ebramzadeh, Edward and Meyers, Kathleen and Walsh, William R and Cornwall, Bryan G and Kelly, Brian and Colbrunn, Robb W},
  city = {Long Beach, California, USA},
  journal = {Orthopaedic Research Society (ORS) Annual Meeting},
  month = feb,
  title = {Temporal Variation in Artificial Composite Spinal Surrogates through Inter-laboratory Spine Biomechanics Testing},
  year = {2024},
  dimensions = {true}
}

ORS 2024

Composite Lumbar Spine Surrogate Biomechanical Variability During Multi-Laboratory Collaborative Testing

Emma C Coltoff, Jeremy G Loss, Siril Teja Dukkipati , and 13 more authors

Orthopaedic Research Society (ORS) Annual Meeting, Feb 2024

Bib

@article{ORS2024b,
  author = {Coltoff, Emma C and Loss, Jeremy G and Dukkipati, Siril Teja and Driscoll, Mark and Wahbeh, Jenna M and Chastain, Kalle L and Pelletier, Matthew H and Wang, Tian and Brown, Philip J and Sangiorgio, Sophia and Ebramzadeh, Edward and Meyers, Kathleen and Walsh, William R and Cornwall, Bryan G and Kelly, Brian and Colbrunn, Robb W},
  city = {Long Beach, California, USA},
  journal = {Orthopaedic Research Society (ORS) Annual Meeting},
  month = feb,
  title = {Composite Lumbar Spine Surrogate Biomechanical Variability During Multi-Laboratory Collaborative Testing},
  year = {2024},
  dimensions = {true}
}

CSS 2024

Ligament damage models in the lumbar spine: Modeling using a novel 3D printable analogue model

Siril Teja Dukkipati, and Mark Driscoll

24rd Annual Scientific Conference of The Canadian Spine Society, Feb 2024

Bib

@article{CSS2024,
  author = {Dukkipati, Siril Teja and Driscoll, Mark},
  city = {Whistler, British Columbia},
  journal = {24rd Annual Scientific Conference of The Canadian Spine Society},
  month = feb,
  title = {Ligament damage models in the lumbar spine: Modeling using a novel 3D printable analogue model},
  year = {2024},
  dimensions = {true}
}

SB3C 2024

Temporal Variability in Composite Lumbar Spine Surrogates During Multi-Laboratory Collaborative Testing

Emma C Coltoff, Jeremy G Loss, Siril Teja Dukkipati , and 13 more authors

Summer Biomechanics, Bioengineering, and Biotransport Conference (SB3C), Jul 2024

Bib

@article{SB3C2024a,
  author = {Coltoff, Emma C and Loss, Jeremy G and Dukkipati, Siril Teja and Driscoll, Mark and Wahbeh, Jenna M and Chastain, Kalle L and Pelletier, Matthew H and Wang, Tian and Brown, Philip J and Sangiorgio, Sophia and Ebramzadeh, Edward and Meyers, Kathleen and Walsh, William R and Cornwall, Bryan G and Kelly, Brian and Colbrunn, Robb W},
  city = {Lake Geneva, Wisconsin, USA},
  journal = {Summer Biomechanics, Bioengineering, and Biotransport Conference (SB3C)},
  month = jul,
  title = {Temporal Variability in Composite Lumbar Spine Surrogates During Multi-Laboratory Collaborative Testing},
  year = {2024},
  dimensions = {true}
}

SB3C 2024

Biomechanical Variability in Composite Lumbar Spine Surrogates During Multi-Laboratory Collaborative Testing

Emma C Coltoff, Jeremy G Loss, Siril Teja Dukkipati , and 13 more authors

Summer Biomechanics, Bioengineering, and Biotransport Conference (SB3C), Jul 2024

Bib

@article{SB3C2024b,
  author = {Coltoff, Emma C and Loss, Jeremy G and Dukkipati, Siril Teja and Driscoll, Mark and Wahbeh, Jenna M and Chastain, Kalle L and Pelletier, Matthew H and Wang, Tian and Brown, Philip J and Sangiorgio, Sophia and Ebramzadeh, Edward and Meyers, Kathleen and Walsh, William R and Cornwall, Bryan G and Kelly, Brian and Colbrunn, Robb W},
  city = {Lake Geneva, Wisconsin, USA},
  journal = {Summer Biomechanics, Bioengineering, and Biotransport Conference (SB3C)},
  month = jul,
  title = {Biomechanical Variability in Composite Lumbar Spine Surrogates During Multi-Laboratory Collaborative Testing},
  year = {2024},
  dimensions = {true}
}

IMAC-XLII 2024

Effect of Ligaments on Lumbar Spinal Stiffness: A Systematic Investigation Using Novel 3D-Printed Analogue Spine Models

Siril Teja Dukkipati, and Mark Driscoll

IMAC-XLII, Society of Experimental Mechanics, Jan 2024

Bib

@article{IMAC2024a,
  author = {Dukkipati, Siril Teja and Driscoll, Mark},
  city = {Orlando, Florida, USA},
  journal = {IMAC-XLII, Society of Experimental Mechanics},
  month = jan,
  title = {Effect of Ligaments on Lumbar Spinal Stiffness: A Systematic Investigation Using Novel 3D-Printed Analogue Spine Models},
  year = {2024},
  dimensions = {true}
}

IMAC-XLII 2024

3D Printable Analogue Spine Models: Towards Cost and Time Effective Spinal Biomechanical Research

Siril Teja Dukkipati, and Mark Driscoll

IMAC-XLII, Society of Experimental Mechanics, Jan 2024

Bib

@article{IMAC2024b,
  author = {Dukkipati, Siril Teja and Driscoll, Mark},
  city = {Orlando, Florida, USA},
  journal = {IMAC-XLII, Society of Experimental Mechanics},
  month = jan,
  title = {3D Printable Analogue Spine Models: Towards Cost and Time Effective Spinal Biomechanical Research},
  year = {2024},
  dimensions = {true}
}

EUROSPINE 2024

Quantifying the effect of ligament tears on lumbar spine stiffness: A systematic construction and deconstruction study using novel 3D printable analogue spine models (upcoming)

Siril Teja Dukkipati, and Mark Driscoll

EUROSPINE Annual Meeting, Oct 2024

Bib

@article{EUROSPINE2024,
  author = {Dukkipati, Siril Teja and Driscoll, Mark},
  city = {Vienna, Austria},
  journal = {EUROSPINE Annual Meeting},
  month = oct,
  title = {Quantifying the effect of ligament tears on lumbar spine stiffness: A systematic construction and deconstruction study using novel 3D printable analogue spine models (upcoming)},
  year = {2024},
  dimensions = {true}
}

ISTA 2024

Temporal Variation in Artificial Composite Spinal Surrogates Through Inter-Laboratory Spine Biomechanics Testing (upcoming)

Jeremy G Loss, Emma C Coltoff, Siril Teja Dukkipati , and 13 more authors

International Society for Technology in Arthroplasty (ISTA), Aug 2024

Bib

@article{Loss2024,
  author = {Loss, Jeremy G and Coltoff, Emma C and Dukkipati, Siril Teja and Driscoll, Mark and Wahbeh, Jenna M and Chastain, Kalle L and Pelletier, Matthew H and Wang, Tian and Brown, Philip J and Sangiorgio, Sophia and Ebramzadeh, Edward and Meyers, Kathleen and Walsh, William R and Cornwall, Bryan G and Kelly, Brian and Colbrunn, Robb W},
  city = {Nashville, Tennessee},
  journal = {International Society for Technology in Arthroplasty (ISTA)},
  month = aug,
  title = {Temporal Variation in Artificial Composite Spinal Surrogates Through Inter-Laboratory Spine Biomechanics Testing (upcoming)},
  year = {2024},
  dimensions = {true}
}

ISTA 2024

Composite Lumbar Spine Surrogate Biomechanical Variability During Multi-Laboratory Collaborative Testing (upcoming)

Jeremy G Loss, Emma C Coltoff, Siril Teja Dukkipati , and 13 more authors

International Society for Technology in Arthroplasty (ISTA), Aug 2024

Bib

@article{ISTA2024b,
  author = {Loss, Jeremy G and Coltoff, Emma C and Dukkipati, Siril Teja and Driscoll, Mark and Wahbeh, Jenna M and Chastain, Kalle L and Pelletier, Matthew H and Wang, Tian and Brown, Philip J and Sangiorgio, Sophia and Ebramzadeh, Edward and Meyers, Kathleen and Walsh, William R and Cornwall, Bryan G and Kelly, Brian and Colbrunn, Robb W},
  city = {Nashville, Tennessee},
  journal = {International Society for Technology in Arthroplasty (ISTA)},
  month = aug,
  title = {Composite Lumbar Spine Surrogate Biomechanical Variability During Multi-Laboratory Collaborative Testing (upcoming)},
  year = {2024},
  dimensions = {true}
}

ISTA 2024

A Systematic Benchtop Construction and Deconstruction Study of Spinal Ligaments Using Novel 3D Printable Analogue Spine Models (upcoming)

Siril Teja Dukkipati, and Mark Driscoll

International Society for Technology in Arthroplasty (ISTA), Aug 2024

Bib

@article{ISTA2024c,
  author = {Dukkipati, Siril Teja and Driscoll, Mark},
  city = {Nashville, Tennessee},
  journal = {International Society for Technology in Arthroplasty (ISTA)},
  month = aug,
  title = {A Systematic Benchtop Construction and Deconstruction Study of Spinal Ligaments Using Novel 3D Printable Analogue Spine Models (upcoming)},
  year = {2024},
  dimensions = {true}
}

Preprint
Evaluation of a High Fidelity Rigid Body Spine Model for Muscle Recruitment and Intra-Abdominal Pressure Simulations

Siril Teja Dukkipati, and Mark Driscoll

Aug 2024

Abs Bib HTML

A rigid body musculoskeletal model of the lumbar spine along with intra-abdominal pressure (IAP) was presented in this research. Traditional spinal biomechanical models in literature often neglect the load-sharing effect of IAP on the spine and can be computationally intensive. These limitations limit them to be effectively used for computationally intensive applications like muscle recruitment simulations. As such, there remains a need for high-fidelity validated musculoskeletal spine models, hence developed herein. The skeletal components were adapted from 3D MRI scans and the intervertebral discs were modeled as 3 degrees-of-freedom (DOF) gimbal joints with a custom joint torque feedback for their control. Supraspinous, interspinous, and intertransverse ligaments were modeled as tension-only springs. Further, two methods of modeling IAP were discussed and implemented. The resultant model consisted a total of 15 DOFs, constrained by 279 independent force-generating elements. The lumbar segmental stiffness profiles in all three directions were found to be within one standard deviation of the literature data. A linear increase in the extensor torque about L3 was observed with an increase in IAP emphasizing the IAP’s load-sharing effect during flexion. The 6 sec compilation and 1.4 sec run times suggest that this model is suitable for muscle recruitment optimization problems. This MATLAB based simulation platform offers a quick and intuitive tool to visualize physiological loading for the biomechanics community.
@article{3Manu2024, author = {Dukkipati, Siril Teja and Driscoll, Mark}, doi = {}, issn = {}, journal = {}, title = {Evaluation of a High Fidelity Rigid Body Spine Model for Muscle Recruitment and Intra-Abdominal Pressure Simulations}, url = {}, year = {2024}, dimensions = {true}, google_scholar_id = {}, }
J. Bionic Eng.
Design Improvements and Validation of a Novel Fully 3D Printed Analogue Lumbar Spine Motion Segment

Siril Teja Dukkipati, and Mark Driscoll

Journal of Bionic Engineering, May 2024

Abs Bib HTML

Spine biomechanical testing methods in the past few decades have not evolved beyond employing either cadaveric studies or finite element modeling techniques. However, both these approaches may have inherent cost and time limitations. Cadaveric studies are the present gold standard for spinal implant design and regulatory approval, but they introduce significant variability in measurements across patients, often requiring large sample sizes. Finite element modeling demands considerable expertise and can be computationally expensive when complex geometry and material nonlinearity are introduced. Validated analogue spine models could complement these traditional methods as a low-cost and high-fidelity alternative. A fully 3D printable L-S1 analogue spine model with ligaments is developed and validated in this research. Rotational stiffness of the model under pure bending loading in flexion-extension, Lateral Bending (LB) and Axial Rotation (AR) is evaluated and compared against historical ex vivo and in silico models. Additionally, the effect of interspinous, intertransverse ligaments and the Thoracolumbar Fascia (TLF) on spinal stiffness is evaluated by systematic construction of the model. In flexion, model Range of Motion (ROM) was 12.92 ± 0.11° (ex vivo: 16.58°, in silico: 12.96°) at 7.5Nm. In LB, average ROM was 13.67 ± 0.12° at 7.5 Nm (ex vivo: 15.21 ± 1.89°, in silico: 15.49 ± 0.23°). Similarly, in AR, average ROM was 17.69 ± 2.12° at 7.5Nm (ex vivo: 14.12 ± 0.31°, in silico: 15.91 ± 0.28°). The addition of interspinous and intertransverse ligaments increased both flexion and LB stiffnesses by approximately 5%. Addition of TLF showed increase in flexion and AR stiffnesses by 29% and 24%, respectively. This novel model can reproduce physiological ROMs with high repeatability and could be a useful open-source tool in spine biomechanics.
@article{2Manu2024, author = {Dukkipati, Siril Teja and Driscoll, Mark}, doi = {10.1007/s42235-024-00512-8}, issn = {1672-6529}, issue = {3}, journal = {Journal of Bionic Engineering}, keywords = {Artificial Intelligence,Biochemical Engineering,Bioinformatics,Biomaterials,Biomedical Engineering and Bioengineering,Biomedical Engineering/Biotechnology}, month = may, pages = {1388-1396}, publisher = {Springer}, title = {Design Improvements and Validation of a Novel Fully 3D Printed Analogue Lumbar Spine Motion Segment}, volume = {21}, url = {https://link.springer.com/10.1007/s42235-024-00512-8}, year = {2024}, dimensions = {true}, google_scholar_id = {zYLM7Y9cAGgC}, }

2023

Fascia. 2023

Analogue models of the Thoracolumbar Fascia

Siril Teja Dukkipati, and Mark Driscoll

Summer school on Fascial Anatomy, McGill University, Jul 2023

Bib

@article{SSFA2023,
  author = {Dukkipati, Siril Teja and Driscoll, Mark},
  city = {Montreal, Canada},
  journal = {Summer school on Fascial Anatomy, McGill University},
  month = jul,
  title = {Analogue models of the Thoracolumbar Fascia},
  year = {2023},
  dimensions = {true}
}

Spine L. D. 2023

Pure bending stiffness in a fully 3D printed L1-S1 lumbar spine model

Siril Teja Dukkipati, and Mark Driscoll

4th International workshop on spinal loading and deformation, Jul 2023

Bib

@article{SLD2023,
  author = {Dukkipati, Siril Teja and Driscoll, Mark},
  city = {Berlin, Germany},
  journal = {4th International workshop on spinal loading and deformation},
  month = jul,
  pages = {102-103},
  title = {Pure bending stiffness in a fully 3D printed L1-S1 lumbar spine model},
  year = {2023},
}

GSC 2023

On the effect of Thoracolumbar Fascia on lumbar spine stiffness under loading in an analogue spine setup

Siril Teja Dukkipati, and Mark Driscoll

Global Spine Congress, May 2023

Bib HTML

@article{GSC2023a,
  author = {Dukkipati, Siril Teja and Driscoll, Mark},
  city = {Prague, Czech Republic},
  doi = {10.1177/21925682231166109},
  issn = {2192-5682},
  journal = {Global Spine Congress},
  month = may,
  pages = {237S-238S},
  title = {On the effect of Thoracolumbar Fascia on lumbar spine stiffness under loading in an analogue spine setup},
  year = {2023},
  url = {https://doi.org/10.1177/21925682231166109},
  dimensions = {true}
}

GSC 2023

Estimating the effect of ligaments on spinal stiffness by systematic construction of an L1 S1 analogue spine model

Siril Teja Dukkipati, and Mark Driscoll

Global Spine Congress, May 2023

Bib HTML

@article{GSC2023b,
  author = {Dukkipati, Siril Teja and Driscoll, Mark},
  city = {Prague, Czech Republic},
  doi = {10.1177/21925682231166109},
  issn = {2192-5682},
  journal = {Global Spine Congress},
  month = may,
  pages = {237S},
  title = {Estimating the effect of ligaments on spinal stiffness by systematic construction of an L1 S1 analogue spine model},
  year = {2023},
  url = {https://doi.org/10.1177/21925682231166109},
  dimensions = {true}
}

GSC 2023

Rotational stiffness in a fully 3D printed biomechanical analogue of the lumbar spine

Siril Teja Dukkipati, and Mark Driscoll

Global Spine Congress, May 2023

Bib HTML

@article{GSC2023c,
  author = {Dukkipati, Siril Teja and Driscoll, Mark},
  city = {Prague, Czech Republic},
  doi = {10.1177/21925682231166109},
  issn = {2192-5682},
  journal = {Global Spine Congress},
  month = may,
  pages = {233S},
  title = {Rotational stiffness in a fully 3D printed biomechanical analogue of the lumbar spine},
  year = {2023},
  url = {https://doi.org/10.1177/21925682231166109},
  dimensions = {true}
}

2022

Preprint
Development and Biomechanical Evaluation of a 3D Printed Analogue Lumbar Spine Motion Segment

Siril Teja Dukkipati, and Mark Driscoll

SSRN Electronic Journal, May 2022

Abs Bib HTML

There exists a need for validated lumbar spine models in spine biomechanics research. Although cadaveric testing is the current gold standard for spinal implant development, it poses significant issues related to reliability, repeatability, and ethics. Analogue or synthetic models can act as cost saving alternatives to human tissue. This study presents a first reproducible 3D printable L1-S1 lumbar spine motion segment and validated it in flexion-extension (F-E), lateral bending (LB), and axial rotation (AR) in the range of 15° against in vitro data and in silico models. The model consisted of L1 to S1 vertebrae, corresponding intervertebral discs, intertransverse, interspinous, anterior and posterior longitudinal ligaments, and facet joints. Displacement controlled pure moments were applied in the range of 15° in all three bending modes and the resisting moment was recorded. Rotational stiffness was calculated by plotting the resisting moment against rotation. The model reached a maximum of 5.66Nm and 3.53Nm at 15° flexion and rotation, 3.84Nm and 3.93Nm at 15° right and left lateral bending, and 2.45Nm and 2.59Nm at 15° right and left axial rotations respectively. Scaling factors b=1.6 and g=3.0 were applied in LB and AR to calibrate the model response. Post scaling, the model response in all axes correlated well with in vitro and in silico literature data. An RMS error of 1.57°, 1.64°, 0.82° in F-E, LB and AR respectively was estimated in the model when compared to in vitro human response. The reproduceable 3D printed analogue model described herein can be a valid substitute for cadaveric lumbar motion segments within the explored context of use.
@article{1Manu2022, author = {Dukkipati, Siril Teja and Driscoll, Mark}, doi = {10.2139/ssrn.4154354}, issn = {1556-5068}, journal = {SSRN Electronic Journal}, title = {Development and Biomechanical Evaluation of a 3D Printed Analogue Lumbar Spine Motion Segment}, url = {https://www.ssrn.com/abstract=4154354}, year = {2022}, dimensions = {true}, google_scholar_id = {9yKSN-GCB0IC}, }

FRC 2022

Viscoelastic Properties of a 3D Printed Analogue of Thoracolumbar Fascia

Siril Teja Dukkipati, and Mark Driscoll

6th International Fascia Research Congress, Sep 2022

Bib

@article{FRS2022,
  author = {Dukkipati, Siril Teja and Driscoll, Mark},
  city = {Montreal, Canada},
  journal = {6th International Fascia Research Congress},
  month = sep,
  title = {Viscoelastic Properties of a 3D Printed Analogue of Thoracolumbar Fascia},
  year = {2022},
  dimensions = {true}
}

ESMC 2022

Design and validation of 3D printed analogous lumbar model for use in a robotic benchtop spine model

Siril Teja Dukkipati, and Mark Driscoll

11th European Solid Mechanics Conference, Jul 2022

GREAT Award Bib

Secured a travel grant from McGill University.

@article{ESMC2022,
  author = {Dukkipati, Siril Teja and Driscoll, Mark},
  city = {Galway, Ireland},
  journal = {11th European Solid Mechanics Conference},
  month = jul,
  title = {Design and validation of 3D printed analogous lumbar model for use in a robotic benchtop spine model},
  year = {2022},
  dimensions = {true},
}

2020

Bachelors Thesis

Self-Healing Soft Robotics: Design & Prototyping of a Self-Healing Soft Gripper

Siril Teja Dikkipati

Jun 2020

Bib

@article{Bthesis2020,
  author = {Dikkipati, Siril Teja},
  city = {Brussels, Belgium},
  institution = {Manipal Institute of Technology, Vrije Universiteit Brussel},
  month = jun,
  title = {Self-Healing Soft Robotics: Design & Prototyping of a Self-Healing Soft Gripper},
  year = {2020},
  dimensions = {true}
}

2019

SURE 2019

Implementation of the control system on a robotic spine & Validation of the benchtop model

Siril Teja Dukkipati, and Mark Driscoll

Summer Undergraduate Research in Engineering, McGill University, Jun 2019

Bib

@article{SURE2019,
  author = {Dukkipati, Siril Teja and Driscoll, Mark},
  city = {Montreal, Canada},
  journal = {Summer Undergraduate Research in Engineering, McGill University},
  month = jun,
  title = {Implementation of the control system on a robotic spine & Validation of the benchtop model},
  year = {2019},
  dimensions = {true}
}

2018

ICAARS 2018

Design and analysis of underactuated gripper using Chebyshev lambda mechanism with slip preventive strategy for fragile objects

Siril Teja Dukkipati, Mohammed Sulaiman, and Kulpreet Singh Dhankar

2nd International Conference on Advancements in Automation, Robotics and Sensing, Oct 2018

Bib

@article{ICAARS2018,
  author = {Dukkipati, Siril Teja and Sulaiman, Mohammed and Dhankar, Kulpreet Singh},
  city = {Coimbatore, India},
  journal = {2nd International Conference on Advancements in Automation, Robotics and Sensing},
  month = oct,
  title = {Design and analysis of underactuated gripper using Chebyshev lambda mechanism with slip preventive strategy for fragile objects},
  year = {2018},
  dimensions = {true}
}