Publications by authors named "Andrew Sama"

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Biomarkers for Preoperative Bone Quality Assessment: A Prospective Investigation of Dermal Ultrasound and Advanced Glycation End-products in Lumbar Fusion Patients.
Erika Chiapparelli, Ali E Guven, Quinton Wright, Paul Köhli, Ranqing Lan, Andrew A Sama

Ultrasound Med Biol· January 2026

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Alcohol Abuse and Collagen Disruption: Effects on Skin Ultrasound Parameters in Lumbar Fusion Patients.
Erika A Chiapparelli, Ali E Guven, Krizia Amoroso, Ranqing Lan, Gisberto Evangelisti, Andrew A Sama

Spine (Phila Pa 1976)· December 2025

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10-Year trend of lateral lumbar interbody fusion and the impact of 3D-printed titanium in a high-volume academic center.
Marco D Burkhard, Ali E Guven, Anna-Maria Mielke, Paul Köhli, Jan Hambrecht, Andrew A Sama

Eur Spine J· December 2025

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Accuracy of Augmented Reality Navigation Versus Freehand Pedicle Screw Placement.
Giuseppe Loggia, Aron Alakmeh, Fedan Avrumova, Franziska C S Altorfer, Jiaqi Zhu, Andrew Sama

Spine (Phila Pa 1976)· December 2025

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The Association Between Preoperative Cannabis Use and Anxiety, Pain Scores and Opioid Consumption in Patients Undergoing Spinal Fusion: A Retrospective Cohort Study.
Krizia Amoroso, Erika Chiapparelli, Jiaqi Zhu, Ali E Guven, Jennifer Shue, Andrew A Sama

Global Spine J· November 2025

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Abdominal aortic calcification is associated with impaired fusion after elective spinal fusion.
Marco D Burkhard, Thomas Caffard, Lukas Schönnagel, Samuel Medina, Ali E Guven, Andrew A Sama

Spine J· November 2025

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Postoperative Decrease in Volumetric Bone Mineral Density in Patients Undergoing Anterior or Lateral Lumbar Interbody Fusion: Stand-Alone Versus 360° Constructs.
Koki Tsuchiya, Ichiro Okano, Ali E Guven, Erika Chiapparelli, Paul Kohli, Andrew A Sama

HSS J· November 2025

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Concordance Between Patients' and Surgeons' Expectations of Cervical Spine Surgery.
Carol A Mancuso, Roland Duculan, Frank P Cammisa, Andrew A Sama, Alexander P Hughes

Spine (Phila Pa 1976)· November 2025

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Risk Factors for Postoperative Non-Satisfaction Despite ODI Improvement in Patients Undergoing Elective Lumbar Surgery.
Jan Hambrecht, Paul Köhli, Erika Chiapparelli, Ranqing Lan, Marco D Burkhard, Andrew A Sama

Spine (Phila Pa 1976)· October 2025

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Cervical Muscle Composition in Degenerative Dropped Head Syndrome: A Propensity Score Matching Study.
Thomas Caffard, Bruno Verna, Lukas Schönnagel, Ali E Guven, Artine Arzani, Andrew A Sama

Spine (Phila Pa 1976)· October 2025

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Greater collagen alignment is associated with accumulation of advanced glycation endproducts in iliac trabecular bone in men and women undergoing spine fusion surgery.
Quinton Wright, Erika Chiapparelli, Jennifer Shue, Kobby Adu, Yi Xin Han, Andrew A Sama

JBMR Plus· September 2025

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Behavioral Intervention to Foster Healthy Lifestyle Physical Activity After Complex Lumbar Surgery: A Randomized Controlled Trial.
Carol A Mancuso, Roland Duculan, Manuela C Lafage, Frank P Cammisa, Andrew A Sama

J Bone Joint Surg Am· September 2025

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The symbiosis of robotics, enabling technology and minimally invasive surgery.
Katherine M Bunch, Garret P Greeneway, Darius S Ansari, Chetan Patel, Eric W Nottmeier, Andrew A Sama

N Am Spine Soc J· September 2025

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3D-Printed Titanium: Game-Changer for Standalone Lateral Lumbar Interbody Fusion? An Analysis of Risk Factors for Revision Surgery.
Marco D Burkhard, Ali E Guven, Bryce Demopoulos, Simon Ortiz, Torben Stepan, Andrew A Sama

Global Spine J· September 2025

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Associated Factors for Increased Fat Infiltration in the Erector Spinae in Patients Undergoing Lumbar Surgery for Degenerative Conditions.
Jan Hambrecht, Paul Köhli, Roland Duculan, Ranqing Lan, Erika Chiapparelli, Andrew A Sama

Spine (Phila Pa 1976)· August 2025

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Relationship between posterior paraspinal muscle fat infiltration and early conversion to lumbar spinal fusion following decompression surgery.
Erika Chiapparelli, Thomas Caffard, Samuel J Medina, Krizia Amoroso, Jiaqi Zhu, Andrew Sama

Eur Spine J· July 2025

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Standalone lateral lumbar interbody fusion reduces the risk of adjacent segment surgery.
Marco D Burkhard, Torben Stepan, Charlotte Jones, John Lama, Nicolas Mjaess, Andrew A Sama

Spine J· July 2025

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Endplate Degeneration and Intervertebral Vacuum Phenomenon Are Positively Correlated: A Retrospective Study in Patients Undergoing Lumbar Fusion Surgery.
Gaston Camino-Willhuber, Lukas Schönnagel, Erika Chiapparelli, Paul Kohli, Krizia Amoroso, Andrew A Sama

Clin Spine Surg· June 2025

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Association between subaxial paraspinal muscle parameters and cervical vertebral bone quality in preoperative patients.
Artine Arzani, Bruno Verna, Thomas Caffard, Vidushi Tripathi, Erika Chiapparelli, Andrew A Sama

J Neurosurg Spine· June 2025

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How the Reputation of Orthopaedic Residency Programs Influences the Spine Surgery Fellowship Match Results.
Andrew J Sama, Joshua T Kaiser, Chester J Donnally, Lisa K Cannada, Alan S Hilibrand

J Surg Orthop Adv· June 2025

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Analysis of "Local Guide" Google Reviews for Orthopaedic Spine Surgeons.
Griffin B Harris, Andrew J Sama, Nicholas C Schiller, Alina Syros, Ronald Swonger

J Surg Orthop Adv· May 2025

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Introducing the Paraspinal Muscle Quality (PMQ) Score: A Novel T2 MRI-Based Intensity Parameter for Lean Muscle Assessment in Spine Patients.
Ali E Guven, Kyle Finos, Isaac Nathoo, Paul Köhli, Marco D Burkhard, Andrew A Sama

Spine (Phila Pa 1976)· May 2025

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Is Intraoperative Neuromonitoring with SSEPs and EMG Predictable for Postoperative Neurologic Deficit in Posterior Lumbar Fusion Surgery? A Retrospective Cohort Analysis.
Marco D Burkhard, Gisberto Evangelisti, Franziska C S Altorfer, Philip K Paschal, Chukwuebuka C Achebe, Andrew A Sama

Global Spine J· May 2025

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Incidence of and Risk Factors for Ileus Following Spine Surgery.
Yusef J Jordan, Gregory S Kazarian, Kyle W Morse, Jung Kee Mok, Izzet Akosman, Andrew A Sama

J Bone Joint Surg Am· April 2025

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Undetected low bone mineral density in patients undergoing lumbar fusion surgery-prevalence and risk factors.
Paul C Köhli, Jan Hambrecht, Jiaqi Zhu, Erika Chiapparelli, Lukas Schönnagel, Andrew A Sama

N Am Spine Soc J· March 2025

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