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2. Utility of the Modified 5-Items Frailty Index to Predict Complications and Mortality After Elective Cervical, Thoracic and Lumbar Posterior Spine Fusion Surgery: Multicentric Analysis From ACS-NSQIP Database.

Author

Camino-Willhuber, Gaston, Choi, Jeffrey, Holc, Fernando, Oyadomari, Sarah, Guiroy, Alfredo, Bow, Hansen, Hashmi, Sohaib, Oh, Michael, Bhatia, Nitin, and Lee, Yu-Po

Subjects
complications, modified frailty index, readmission, spine surgery
Abstract

STUDY DESIGN: Retrospective review of multicentric data. OBJECTIVES: The modified 5-item frailty index is a relatively new tool to assess the post-operative complication risks. It has been recently shown a good predictive value after posterior lumbar fusion. We aimed to compare the predictive value of the modified 5-item frailty index in cervical, thoracic and lumbar surgery. METHODS: The American College of Surgeons - National Surgical Quality Improvement Program (ACS-NSQIP) Database 2015-2020 was used to identify patients who underwent elective posterior cervical, thoracic, or lumbar fusion surgeries for degenerative conditions. The mFI-5 score was calculated based on the presence of 5 co-morbidities: congestive heart failure within 30 days prior to surgery, insulin-dependent or noninsulin-dependent diabetes mellitus, chronic obstructive pulmonary disease or pneumonia, partially dependent or totally dependent functional health status at time of surgery, and hypertension requiring medication. Multivariate analysis was used to assess the independent impact of increasing mFI-5 score on the postoperative morbidity while controlling for baseline clinical characteristics. RESULTS: 53 252 patients were included with the mean age of 64.2 ± 7.2. 7946 suffered medical complications (14.9%), 1565 had surgical complications (2.9%), and 3385 were readmitted (6.3%), 363 died (.68%) within 30 days postoperative (6.3%). The mFI-5 items score was significantly associated with higher rates of complications, readmission, and mortality in cervical, thoracic, and lumbar posterior fusion surgery. CONCLUSION: The modified 5-item frailty score is a reliable tool to predict complications, readmission, and mortality in patients planned for elective posterior spinal fusion surgery.

Published
2024

3. Georg Schmorl Prize of the German Spine Society (DWG) 2023: the influence of sarcopenia and paraspinal muscle composition on patient-reported outcomes: a prospective investigation of lumbar spinal fusion patients with 12-month follow-up

Author

Haffer, Henryk, Muellner, Maximilian, Chiapparelli, Erika, Dodo, Yusuke, Camino-Willhuber, Gaston, Zhu, Jiaqi, Tan, Ek T., Pumberger, Matthias, Shue, Jennifer, Sama, Andrew A., Cammisa, Frank P., Girardi, Federico P., and Hughes, Alexander P.

Published
2024
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6. Postoperative Spinal Infections

Author

Camino-Willhuber, Gaston, Franklin, Austin, Lee, Yu-Po, Bhatia, Nitin, Slullitel, Pablo, editor, Rossi, Luciano, editor, and Camino-Willhuber, Gastón, editor

Published
2024
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7. Association between lumbar intervertebral vacuum phenomenon severity and posterior paraspinal muscle atrophy in patients undergoing spine surgery

Author

Camino-Willhuber, Gaston, Schönnagel, Lukas, Chiapparelli, Erika, Amoroso, Krizia, Tani, Soji, Caffard, Thomas, Arzani, Artine, Guven, Ali E., Verna, Bruno, Zhu, Jiaqi, Shue, Jennifer, Zelenty, William D., Sokunbi, Gbolabo, Bendersky, Mariana, Girardi, Federico P., Sama, Andrew A., Cammisa, Frank P., and Hughes, Alexander P.

Published
2024
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8. Biomechanical Analysis of Percutaneous Cement Discoplasty Based on Cement Distribution

Author

Basiuk, Lucas, Camino-Willhuber, Gaston, Bendersky, Mariana, Meyra, Ariel G., Irastorza, Ramiro M., Manuel Carlevaro, C., Magjarević, Ratko, Series Editor, Ładyżyński, Piotr, Associate Editor, Ibrahim, Fatimah, Associate Editor, Lackovic, Igor, Associate Editor, Rock, Emilio Sacristan, Associate Editor, Ballina, Fernando Emilio, editor, Armentano, Ricardo, editor, Acevedo, Rubén Carlos, editor, and Meschino, Gustavo Javier, editor

Published
2024
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10. Examining the Role of Paraspinal Musculature in Postoperative Disability After Lumbar Fusion Surgery for Degenerative Spondylolisthesis

Author

Schönnagel, Lukas, Guven, Ali E., Camino-Willhuber, Gaston, Caffard, Thomas, Tani, Soji, Zhu, Jiaqi, Haffer, Henryk, Muellner, Maximilian, Zadeh, Arman, Sanchez, Leonardo A., Shue, Jennifer, Duculan, Roland, Schömig, Friederike, Sama, Andrew A., Cammisa, Frank P., Girardi, Federico P., Mancuso, Carol A., and Hughes, Alexander P.

Published
2024
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11. Pyogenic spinal infections in patients with chronic liver disease: illustrative case and systematic review.

Author

Camino-Willhuber, Gaston, Beyer, Ryan S, Hatter, Matthew J, Franklin, Austin J, Brown, Nolan J, Hashmi, Sohaib, Oh, Michael, Bhatia, Nitin, and Lee, Yu-Po

Subjects
CRP = C-reactive protein, PSI = pyogenic spinal infection, VO = vertebral osteomyelitis, cirrhosis, liver disease, pyogenic spinal infection, spondylodiscitis, vertebral osteomyelitis, Infectious Diseases, Emerging Infectious Diseases, Digestive Diseases, Neurosciences, Liver Disease, Evaluation of treatments and therapeutic interventions, 6.4 Surgery, Infection, Good Health and Well Being
Abstract

BackgroundPyogenic spinal infections (PSIs) are a group of uncommon but serious infectious diseases that are characterized by inflammation of the endplate-disc unit. PSIs are considered more prevalent and aggressive among patients with chronic immunocompromised states. Association between PSIs and liver disease has not been systematically analyzed. The authors performed a systematic review to study baseline characteristics, clinical presentation, and mortality of patients with PSI in the setting of chronic liver disease.ObservationsThe authors presented the case of a 72-year-old female patient with chronic liver disease who presented with severe low back pain and bilateral lower weakness. Imaging studies showed T10-11 spondylodiscitis. The patient received decompression and fusion surgery with partial neurological improvement. The authors performed a systematic literature search of spondylodiscitis and liver disease, and eight published articles met the studies inclusion and exclusion criteria. These studies featured a total of 144 patients, of whom 129 met inclusion criteria (mean age, 60.5 years, range 40 to 83 years; 62% males). Lumbar infection was the most common report (67%), with Staphylococcus aureus (48%) as the main causative microorganism. Neurological compromise was present in 69% of patients. Surgical intervention occurred in 70.5% of patients, and the average duration of antibiotic treatment was 69.4 days. Postoperative complication rate was 28.5%, with a 30- and 90-day mortality of 17.2% and 24.8%, respectively.LessonsPyogenic spondylodiscitis in patients with liver disease was associated with a high rate of neurological compromise, postoperative complications, and mortality.

Published
2022

12. Surgical treatment in primary spinal infections in a pediatric population: illustrative case

Author

Beyer, Ryan S, Franklin, Austin J, Hatter, Matthew J, Nguyen, Andrew, Brown, Nolan J, Camino-Willhuber, Gaston, Davies, Nestor R, Hashmi, Sohaib, Oh, Michael, Bhatia, Nitin, and Lee, Yu-Po

Subjects
Biomedical and Clinical Sciences, Clinical Sciences, Emerging Infectious Diseases, Tuberculosis, Pain Research, Infectious Diseases, Pediatric, Chronic Pain, Rare Diseases, Neurosciences, Aetiology, 2.1 Biological and endogenous factors, Infection, Good Health and Well Being, CRP = C-reactive protein, PSI = primary spinal infection, WBC = white blood cell, operative, pediatric, spondylodiscitis, surgical management, vertebral osteomyelitis
Abstract

BackgroundPrimary spinal infections (PSIs) are a group of uncommon but serious infectious diseases that are characterized by inflammation of the endplate-disc unit. Pediatric spinal infection is rare and challenging to diagnose due to vague presenting symptoms. Most cases are conservatively managed with surgery rarely indicated. The authors performed a systematic review to study the baseline characteristics, clinical presentation, and outcomes of pediatric patients with PSIs who underwent surgical treatment.ObservationsPSI in pediatric patients might behave differently in terms of epidemiology, clinical presentation, and outcomes when compared with nonpediatric patients. Overall, PSI ultimately managed surgically in pediatric patients is associated with a high rate of localized pain, neurological compromise, and treatment failure when compared with nonsurgically managed pediatric spinal infections.LessonsPSIs managed surgically in the pediatric population were found to be caused by Mycobacterium tuberculosis in 74.4% of cases and were associated with higher rates of localized pain, neurological compromise, and treatment failure than nonsurgically managed pediatric spinal infections. Thoracic involvement (71.8%) in the spinal infection was reported most commonly in our review. When omitting the cases involving M. tuberculosis infection, it was revealed that 50% of the pediatric cases involved infection in the cervical region, suggesting increased severity and disease course of cervical spinal infections in the pediatric population. Surgical treatment is indicated only in cases of severe neurological compromise and treatment failure.

Published
2022

13. Primary spinal infections in patients with solid organ transplant: a systematic literature review and illustrative case

Author

Hatter, Matthew J, Beyer, Ryan S, Camino-Willhuber, Gaston, Franklin, Austin, Brown, Nolan J, Hashmi, Sohaib, Oh, Michael, Bhatia, Nitin, and Lee, Yu-Po

Subjects
Biomedical and Clinical Sciences, Clinical Sciences, Rare Diseases, Organ Transplantation, Transplantation, Emerging Infectious Diseases, Infectious Diseases, Infection, Good Health and Well Being, CRP = C-reactive protein, IFI = invasive fungal infection, PSI = primary spinal infection, WBC = white blood cell, complications, solid organ transplant, spondylodiscitis, vertebral osteomyelitis
Abstract

BackgroundPrimary spinal infections (PSIs) are a group of uncommon but serious infectious diseases considered more prevalent and aggressive among patients with chronic immunocompromised states. Association of PSI and solid organ transplant has not been systematically analyzed. The authors performed a systematic review analyzing clinical presentation and mortality of patients with PSI in the setting of solid organ transplant.ObservationsPSIs in patients with immunosuppressive therapy, such as those with solid organ transplant, may behave differently in terms of epidemiology, clinical presentation, and outcomes compared with nonimmunosuppressed patients. Overall PSI in solid organ transplant patients is associated with a high rate of neurological compromise, postoperative complications, and mortality.LessonsAccurate diagnosis and appropriate treatment of PSI require a multidisciplinary effort. Localized pain is the most frequently reported symptom associated with PSI. As opposed to PSI in patients without transplant, inflammatory and infectious markers such as white blood cells and C-reactive protein are often not elevated. Furthermore, the causative microorganism profile varies significantly when compared to pyogenic spinal infection in patients without transplant. Aspergillus species was responsible for spondylodiscitis in transplant patients in more than 50% of cases, and the incidence of Aspergillus infection is projected to rise in the coming years.

Published
2022

16. Abdominal aortic calcification is independently associated with increased atrophy and fatty infiltration of the lumbar paraspinal muscles: a retrospective cross-sectional study

Author

Schönnagel, Lukas, Muellner, Maximilian, Caffard, Thomas, Tani, Soji, Camino-Willhuber, Gaston, Zhu, Jiaqi, Haffer, Henryk, Suwalski, Phillip, Arzani, Artine, Chiapparelli, Erika, Amoroso, Krizia, Moser, Manuel, Shue, Jennifer, Tan, Ek Tsoon, Carrino, John A., Sama, Andrew A., Cammisa, Frank P., Girardi, Federico P., and Hughes, Alexander P.

Published
2023
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18. Relationship between lumbar spinal stenosis and axial muscle wasting

Author

Schönnagel, Lukas, Zhu, Jiaqi, Camino-Willhuber, Gaston, Guven, Ali E., Tani, Soji, Caffard, Thomas, Haffer, Henryk, Muellner, Maximilian, Chiapparelli, Erika, Arzani, Artine, Amoroso, Krizia, Moser, Manuel, Shue, Jennifer, Tan, Ek T., Carrino, John A., Sama, Andrew A., Cammisa, Frank P., Girardi, Federico P., and Hughes, Alexander P.

Published
2024
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19. Predicting postoperative outcomes in lumbar spinal fusion: development of a machine learning model

Author

Schönnagel, Lukas, Caffard, Thomas, Vu-Han, Tu-Lan, Zhu, Jiaqi, Nathoo, Isaac, Finos, Kyle, Camino-Willhuber, Gaston, Tani, Soji, Guven, Ali. E., Haffer, Henryk, Muellner, Maximilian, Arzani, Artine, Chiapparelli, Erika, Amoroso, Krizia, Shue, Jennifer, Duculan, Roland, Pumberger, Matthias, Zippelius, Timo, Sama, Andrew A., Cammisa, Frank P., Girardi, Federico P., Mancuso, Carol A., and Hughes, Alexander P.

Published
2024
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21. The impact of stratified hypoalbuminemia and dialysis on morbidity/mortality after posterior spinal fusion surgery: An ACS-NSQIP study

Author

Camino-Willhuber, Gaston, Oyadomari, Sarah, Ochoa, Jonathan, Holc, Fernando, Guiroy, Alfredo, Bow, Hansen, Hashmi, Sohaib, Oh, Michael, Bhatia, Nitin, and Lee, Yu-po

Subjects
Biomedical and Clinical Sciences, Clinical Sciences, Clinical Research, Patient Safety, Good Health and Well Being, Adverse events, Complications, Dialysis, Fusion surgery, Hypoalbuminemia, Mortality, Readmission, Severe hypoalbuminemia, Neurosciences, Clinical sciences, Biological psychology
Abstract

BackgroundPreoperative optimization in patients undergoing posterior spinal fusion is essential to limit the number and severity of postoperative complications. Here, we, additionally, evaluated the impact of hypoalbuminemia on morbidity and mortality after posterior spinal fusion surgery.MethodsThis retrospective analysis was performed using data from a prospective multicentric database (ACSNSQIP:2015-2020) regarding patients undergoing posterior spinal fusions. Factors studied included; baseline demographics and 30-day postoperative complications (i.e., reoperations, readmissions, and mortality rates).ResultsThere were 6805 patients who met the inclusion criteria. They averaged 62 years of age and had an average BMI of 30.2. Within the 30-day postoperative period, 634 (9.3%) sustained complications; 467 (6.9%) were readmitted, 263 (3.9%) required reoperations, and 37 (0.5%) expired. Although multiple preoperative risk factors were analyzed, hypoalbuminemia, severe hypoalbuminemia, and dialysis were the strongest independent risk factors associated with complications (i.e., reoperations, readmissions, and mortality).ConclusionHypoalbuminemia, severe hypoalbuminemia, and dialysis were significant predictors for morbidity and mortality after posterior spinal fusion surgery.

Published
2022

22. Preoperative hypoalbuminemia and dialysis increase morbidity/mortality after spine surgery for primary pyogenic spinal infections (ACS-NSQIP Study).

Author

Camino-Willhuber, Gaston, Franklin, Austin, Rosecrance, Katherine, Oyadomari, Sarah, Chan, Justin, Holc, Fernando, Hashmi, Sohaib, Oh, Michael, Bhatia, Nitin, Emmerich, Juan, and Lee, Yu-Po

Subjects
Dialysis, Hypoalbuminemia, Readmission, Reoperation, Spondylodiscitis, Patient Safety, 6.4 Surgery, Evaluation of treatments and therapeutic interventions, Infection, Good Health and Well Being, Clinical Sciences, Neurosciences
Abstract

BackgroundWe analyzed the role of hypoalbuminemia, dialysis, and other risk factors that increase morbidity/ mortality following surgery for primary pyogenic spinal infections (PSIs). The American College of Surgeons' National Surgical Quality Improvement Program (ACS-NSQIP) that included 627 patients was utilized as our database.MethodsPrimary spinal surgery for spondylodiscitis was evaluated in a ACS-NSQIP database involving 627 patients between 2010 and 2019. Outcome assessment included evaluation of 30-day postoperative morbidity, and mortality rates.ResultsWithin 30 postoperative days, complications occurred in 14.6% (92/627) of patients; 59 (9.4%) required readmission, and 39 (6.2%) required additional surgery. The most common complications were: wound infections, pneumonia, septic shock, and death (1.8%). Hypoalbuminemia (i.e., significantly associated with unplanned readmission and reoperation), and dialysis were the two major risk factors contributing to increased perioperative morbidity and mortality.ConclusionAmong 627 ACS-NSQIP patients undergoing primary surgery for PSIs, hypoalbuminemia and dialysis were associated with higher risks of major perioperative morbidity (i.e., within 30 postoperative days - mostly readmissions and reoperations) and mortality.

Published
2022

23. Decision-making Algorithm for the Surgical Treatment of Degenerative Lumbar Spondylolisthesis of L4/L5

Author

Schönnagel, Lukas, Caffard, Thomas, Zhu, Jiaqi, Tani, Soji, Camino-Willhuber, Gaston, Amini, Dominik A., Haffer, Henryk, Muellner, Maximilian, Guven, Ali E., Chiapparelli, Erika, Arzani, Artine, Amoroso, Krizia, Shue, Jennifer, Duculan, Roland, Zippelius, Timo, Sama, Andrew A., Cammisa, Frank P., Girardi, Federico P., Mancuso, Carol A., and Hughes, Alexander P.

Published
2024
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24. Severe Intervertebral Vacuum Phenomenon is Associated With Higher Preoperative Low Back Pain, ODI, and Indication for Fusion in Patients With Degenerative Lumbar Spondylolisthesis

Author

Camino-Willhuber, Gaston, Schönnagel, Lukas, Caffard, Thomas, Zhu, Jiaqi, Tani, Soji, Chiapparelli, Erika, Arzani, Artine, Shue, Jennifer, Duculan, Roland, Bendersky, Mariana, Zelenty, William D., Sokunbi, Gbolabo, Lebl, Darren R., Cammisa, Frank P., Girardi, Federico P., Mancuso, Carol A., Hughes, Alexander P., and Sama, Andrew A.

Published
2024
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25. The Surgical Algorithm for the AO Spine Sacral Injury Classification System

Author

Lee, Yunsoo, Lambrechts, Mark, Narayanan, Rajkishen, Bransford, Richard, Benneker, Lorin, Schnake, Klaus, Öner, Cumhur, Canseco, Jose A., Kepler, Christopher K., Schroeder, Gregory D., Vaccaro, Alexander R., Hockley, Aaron, Zubairi, Akbar J., Barcelos, Alecio, del Arco, Alex, Weening, Alexander, Guiroy, Alfredo, Guiroy, Alfredo, Wael, Alsammak, Bhandutia, Amit, Nishanth, Ampar, Joaquim, Andrei, Joaquim, Andrei, Persin, Andrew, Gupta, Anuj, El Naga, Ashraf, El Naga, Ashraf, Ullrich, Bernhard, Saciloto, Bruno, Cheng, Christina, Bernucci, Claudio, Kleweno, Conor, Cruz, Daniel, Dizon, Dave A., Aponso, Dihan, Patronis, Dimitrios, Martinez, Elias E.J., Pola, Enrico, Gercek, Erol, Lyons, Frank, Camino-Willhuber, Gaston, Tipper, Geoffrey, Okano, Ichiro, Bances, Ignacio F., Paredes, Igor, Parampalli, Janardhana A., Matta, Javier, Subbiah, Jayakumar, Kitzen, Joep, Alves, Jorge, Montoya, Juan E.M., Lourido, Juan, Scherer, Julian, Zhang, Jun, Nitin, Kimmatkar, Margetis, Konstantinos, Rakesh, Kumar, Vineet, Kumar, Lozano, Lady C, Badalassi, Leandro, Rodríguez, Luis M.D., Kollintzas, Lykourgos, Ito, Manabu, Ganau, Mario, Estefan, Martin, Holas, Martin, Federico, Martinelli, Duarte, Matias P., Pumberger, Matthias, Scholz, Matti, Diez-Ulloa, Maximo-Alberto, Triffaux, Michel, Khattab, Mohamed, El-Sharkawi, Mohammad, Abdelhafez, Mostafa, Sathish, Muthu, Khan, Nasser, Nicola, Nicassio, Brown, Nolan, Neves, Nuno, Morillo, Olga, Alarcon, Olger, Bazán, Pedro, Loughenbury, Peter, Bancel, Philippe, Cezar, Popescu E., Rabindra, Pradhan, Moraes, Psmar, Banerjee, Purnajyoti, Lakhey, Rajesh B., Alessamdro, Ramieri, Yurac, Ratko, Vieira, Rian, Bransford, Richard, Kanna, Rishi M., Alakkad, Salah, Samy, Samer, Bigdon, Sebastian, Zylbersztejn, Sergio, Lang, Siegmund, Hashmi, Sohaib, Darwish, Stacey, Corluka, Stipe, haribabu, Subramaniam M., Karimjee, Taha, Elhewala, Tarek, Martin, Tejeda, Benzakour, Thami, Moore, Tim, Adetunji, Toluse, Torres, Valencia H., Loya, Vijay K., Hamouda, Waeel, Söyüncü, Yetkin, Silk, Zacharia, Slavisa, Zagorac, and Klezl, Zdenek

Published
2024
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26. The Surgical Algorithm for the AO Spine Sacral Injury Classification System

Author

Lee, Yunsoo, Lambrechts, Mark, Narayanan, Rajkishen, Bransford, Richard, Benneker, Lorin, Schnake, Klaus, Öner, Cumhur, Canseco, Jose A., Kepler, Christopher K., Schroeder, Gregory D., Vaccaro, Alexander R., Hockley, Aaron, Zubairi, Akbar Jaleel, Barcelos, Alecio, del Arco, Alex, Weening, Alexander, Guiroy, Alfredo, Guiroy, Alfredo, Wael, Alsammak, Bhandutia, Amit, Nishanth, Ampar, Joaquim, Andrei, Joaquim, Andrei, Persin, Andrew, Gupta, Anuj, El Naga, Ashraf, El Naga, Ashraf, Ullrich, Bernhard, Saciloto, Bruno, Cheng, Christina, Bernucci, Claudio, Kleweno, Conor, Cruz, Daniel, Dizon, Dave Anthony, Aponso, Dihan, Patronis, Dimitrios, Martinez, Elias Enmanuel Javier, Pola, Enrico, Gercek, Erol, Lyons, Frank, Camino-Willhuber, Gaston, Tipper, Geoffrey, Okano, Ichiro, Bances, Ignacio Fernández, Paredes, Igor, Parampalli, Janardhana Aithala, Matta, Javier, Subbiah, Jayakumar, Kitzen, Joep, Alves, Jorge, Montoya, Juan Esteban Muñoz, Lourido, Juan, Scherer, Julian, Zhang, Jun, Nitin, Kimmatkar, Margetis, Konstantinos, Rakesh, Kumar, Vineet, Kumar, Lozano, Lady C, Badalassi, Leandro, Rodríguez, Luis Miguel Duchén, Kollintzas, Lykourgos, Ito, Manabu, Ganau, Mario, Estefan, Martin, Holas, Martin, Federico, Martinelli, Duarte, Matias Pereira, Pumberger, Matthias, Scholz, Matti, Diez-Ulloa, Maximo-Alberto, Triffaux, Michel, Khattab, Mohamed, El-Sharkawi, Mohammad, Abdelhafez, Mostafa, Sathish, Muthu, Khan, Nasser, Nicola, Nicassio, Brown, Nolan, Neves, Nuno, Morillo, Olga, Alarcon, Olger, Bazán, Pedro, Loughenbury, Peter, Bancel, Philippe, Cezar, Popescu Eugen, Rabindra, Pradhan, Moraes, Psmar, Banerjee, Purnajyoti, Lakhey, Rajesh Bahadur, Alessamdro, Ramieri, Yurac, Ratko, Vieira, Rian, Bransford, Richard, Kanna, Rishi M, Alakkad, Salah, Samy, Samer, Bigdon, Sebastian, Zylbersztejn, Sergio, Lang, Siegmund, Hashmi, Sohaib, Darwish, Stacey, Corluka, Stipe, haribabu, Subramaniam Macherla, Karimjee, Taha, Elhewala, Tarek, Martin, Tejeda, Benzakour, Thami, Moore, Tim, Adetunji, Toluse, Torres, Valencia Heiller, Loya, Vijay Kumar, Hamouda, Waeel, Söyüncü, Yetkin, Silk, Zacharia, Slavisa, Zagorac, and Klezl, Zdenek

Published
2023
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32. Understanding the Interplay Between Paraspinal Muscle Atrophy and Lumbar Endplate Degeneration: A 3-Year Longitudinal Study

Author

Schönnagel, Lukas, Zhu, Jiaqi, Guven, Ali E., Camino-Willhuber, Gaston, Tani, Soji, Caffard, Thomas, Haffer, Henryk, Muellner, Maximilian, Chiapparelli, Erika, Amoroso, Krizia, Arzani, Artine, Moser, Manuel, Shue, Jennifer, Tan, Ek T., Carrino, John A., Jöns, Thomas, Sama, Andrew A., Girardi, Federico P., Cammisa, Frank P., and Hughes, Alexander P.

Published
2023
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33. Severe Intervertebral Vacuum Phenomenon is Associated With Higher Preoperative Low Back Pain, ODI, and Indication for Fusion in Patients With Degenerative Lumbar Spondylolisthesis

Author

Camino-Willhuber, Gaston, Schönnagel, Lukas, Caffard, Thomas, Zhu, Jiaqi, Tani, Soji, Chiapparelli, Erika, Arzani, Artine, Shue, Jennifer, Duculan, Roland, Bendersky, Mariana, Zelenty, William D., Sokunbi, Gbolabo, Lebl, Darren R., Cammisa, Frank P., Girardi, Federico P., Mancuso, Carol A., Hughes, Alexander P., and Sama, Andrew A.

Published
2023
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38. Risk Factors for Unexpected Conversion from Ambulatory to Inpatient Admission Among One- or Two-level ACDF Patients

Author

Tani, Soji, Okano, Ichiro, Dodo, Yusuke, Camino-Willhuber, Gaston, Caffard, Thomas, Schönnagel, Lukas, Chiapparelli, Erika, Amoroso, Krizia, Tripathi, Vidushi, Arzani, Artine, Oezel, Lisa, Shue, Jennifer, Zelenty, William D., Lebl, Darren R., Cammisa, Frank P., Girardi, Federico P., Hughes, Alexander P., Sokunbi, Gbolabo, and Sama, Andrew A.

Published
2023
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39. Decision-making Algorithm for the Surgical Treatment of Degenerative Lumbar Spondylolisthesis of L4/L5

Author

Schönnagel, Lukas, Caffard, Thomas, Zhu, Jiaqi, Tani, Soji, Camino-Willhuber, Gaston, Amini, Dominik A., Haffer, Henryk, Muellner, Maximilian, Guven, Ali E., Chiapparelli, Erika, Arzani, Artine, Amoroso, Krizia, Shue, Jennifer, Duculan, Roland, Zippelius, Timo, Sama, Andrew A., Cammisa, Frank P., Girardi, Federico P., Mancuso, Carol A., and Hughes, Alexander P.

Published
2023
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40. Risk Factors for Unexpected Conversion From Ambulatory to Inpatient Admission Among One-level or Two-level ACDF Patients

Author

Tani, Soji, Okano, Ichiro, Dodo, Yusuke, Camino-Willhuber, Gaston, Caffard, Thomas, Schönnagel, Lukas, Chiapparelli, Erika, Amoroso, Krizia, Tripathi, Vidushi, Arzani, Artine, Oezel, Lisa, Shue, Jennifer, Zelenty, William D., Lebl, Darren R., Cammisa, Frank P., Girardi, Federico P., Hughes, Alexander P., Sokunbi, Gbolabo, and Sama, Andrew A.

Published
2023
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41. Importance of the lumbar paraspinal muscles on the maintenance of global sagittal alignment after lumbar pedicle subtraction osteotomy

Author

Caffard, Thomas, primary, Arzani, Artine, additional, Amoroso, Krizia, additional, Chiapparelli, Erika, additional, Medina, Samuel J., additional, Schönnagel, Lukas, additional, Zhu, Jiaqi, additional, Verna, Bruno, additional, Finos, Kyle, additional, Nathoo, Isaac, additional, Tani, Soji, additional, Camino-Willhuber, Gaston, additional, Guven, Ali E., additional, Zadeh, Arman, additional, Tan, Ek Tsoon, additional, Carrino, John A., additional, Shue, Jennifer, additional, Dobrindt, Oliver, additional, Zippelius, Timo, additional, Dalton, David, additional, Sama, Andrew A., additional, Girardi, Federico P., additional, Cammisa, Frank P., additional, and Hughes, Alexander P., additional

Published
2024
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44. Assessing paraspinal muscle atrophy with electrical impedance myography: Limitations and insights.

Author

Guven, Ali E., Chiapparelli, Erika, Camino‐Willhuber, Gaston, Zhu, Jiaqi, Schönnagel, Lukas, Amoroso, Krizia, Caffard, Thomas, Erduran, Ada, Shue, Jennifer, Sama, Andrew A., Girardi, Federico P., Cammisa, Frank P., and Hughes, Alexander P.

Abstract

Paraspinal muscle atrophy is gaining attention in spine surgery due to its link to back pain, spinal degeneration and worse postoperative outcomes. Electrical impedance myography (EIM) is a noninvasive diagnostic tool for muscle quality assessment, primarily utilized for patients with neuromuscular diseases. However, EIM's accuracy for paraspinal muscle assessment remains understudied. In this study, we investigated the correlation between EIM readings and MRI‐derived muscle parameters, as well as the influence of dermal and subcutaneous parameters on these readings. We retrospectively analyzed patients with lumbar spinal degeneration who underwent paraspinal EIM assessment between May 2023 to July 2023. Paraspinal muscle fatty infiltration (FI) and functional cross‐sectional area (fCSA), as well as the subcutaneous thickness were assessed on MRI scans. Skin ultrasound imaging was assessed for dermal thickness and the echogenicities of the dermal and subcutaneous layers. All measurements were performed on the bilaterally. The correlation between EIM readings were compared with ultrasound and MRI parameters using Spearman's correlation analyses. A total of 20 patients (65.0% female) with a median age of 69.5 years (IQR, 61.3–73.8) were analyzed. The fCSA and FI did not significantly correlate with the EIM readings, regardless of frequency. All EIM readings across frequencies correlated with subcutaneous thickness, echogenicity, or dermal thickness. With the current methodology, paraspinal EIM is not a valid alternative to MRI assessment of muscle quality, as it is strongly influenced by the dermal and subcutaneous layers. Further studies are required for refining the methodology and confirming our results. [ABSTRACT FROM AUTHOR]

Published
2024
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46. Importance of the cervical paraspinal muscles in postoperative patient-reported outcomes and maintenance of sagittal alignment after anterior cervical discectomy and fusion.

Author

Caffard, Thomas, Arzani, Artine, Verna, Bruno, Tripathi, Vidushi, Chiapparelli, Erika, Schönnagel, Lukas, Jiaqi Zhu, Medina, Samuel J., Soji Tani, Camino-Willhuber, Gaston, Guven, Ali E., Amoroso, Krizia, Ek Tsoon Tan, Carrino, John A., Shue, Jennifer, Dobrindt, Oliver, Zippelius, Timo, Dalton, David, Sama, Andrew A., and Girardi, Federico P.

Published
2024
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47. Expert Opinion, Real-World Classification, and Decision-Making in Thoracolumbar Burst Fractures Without Neurologic Deficits?

Author

Camino-Willhuber, Gaston, primary, Bigdon, Sebastian, additional, Dandurand, Charlotte, additional, Dvorak, Marcel F., additional, Öner, Cumhur F., additional, Schnake, Klaus, additional, Muijs, Sander, additional, Benneker, Lorin M., additional, Vialle, Emiliano, additional, Tee, Jin W., additional, Keynan, Ory, additional, Chhabra, Harvinder S., additional, Joaquim, Andrei F., additional, Popescu, Eugen C., additional, Canseco, Jose A., additional, Holas, Martin, additional, Kanna, Rishi M., additional, Aly, Mohamed M., additional, Fallah, Nader, additional, Schroeder, Gregory D., additional, Spiegl, Ulrich, additional, El-Skarkawi, Mohammad, additional, Bransford, Richard J., additional, Rajasekaran, Shanmuganathan, additional, and Vaccaro, Alexander R., additional

Published
2024
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48. Understanding Decision Making as It Influences Treatment in Thoracolumbar Burst Fractures Without Neurological Deficit: Conceptual Framework and Methodology

Author

Dandurand, Charlotte, primary, Öner, Cumhur F., additional, Hazenbiller, Olesja, additional, Bransford, Richard J., additional, Schnake, Klaus, additional, Vaccaro, Alexander R., additional, Benneker, Lorin M., additional, Vialle, Emiliano, additional, Schroeder, Gregory D., additional, Rajasekaran, Shanmuganathan, additional, El-Skarkawi, Mohammad, additional, Kanna, Rishi M., additional, Aly, Mohamed, additional, Holas, Martin, additional, Canseco, Jose A., additional, Muijs, Sander, additional, Popescu, Eugen Cezar, additional, Tee, Jin Wee, additional, Camino-Willhuber, Gaston, additional, Joaquim, Andrei Fernandes, additional, Keynan, Ory, additional, Chhabra, Harvinder Singh, additional, Bigdon, Sebastian, additional, Spiegel, Ulrich, additional, and Dvorak, Marcel F., additional

Published
2024
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49. The AO Spine Thoracolumbar Injury Classification System and Treatment Algorithm in Decision Making for Thoracolumbar Burst Fractures Without Neurologic Deficit

Author

Kweh, Barry T. S., primary, Tee, Jin Wee, additional, Dandurand, Charlotte, additional, Vaccaro, Alexander R., additional, Lorin, Benneker M., additional, Schnake, Klaus, additional, Vialle, Emiliano, additional, Rajasekaran, Shanmuganathan, additional, El-Skarkawi, Mohammad, additional, Bransford, Richard J., additional, Kanna, Rishi M., additional, Aly, Mohamed M., additional, Holas, Martin, additional, Canseco, Jose A., additional, Muijs, Sander, additional, Popescu, Eugen C., additional, Camino-Willhuber, Gaston, additional, Joaquim, Andrei F., additional, Chhabra, Harvinder S., additional, Bigdon, Sebastian Frederick, additional, Spiegel, Ulrich, additional, Dvorak, Marcel, additional, Öner, Cumhur F., additional, and Schroeder, Gregory, additional

Published
2024
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50. Interobserver Reliability in the Classification of Thoracolumbar Fractures Using the AO Spine TL Injury Classification System Among 22 Clinical Experts in Spine Trauma Care

Author

Canseco, Jose A., primary, Paziuk, Taylor, additional, Schroeder, Gregory D., additional, Dvorak, Marcel F., additional, Öner, Cumhur F., additional, Benneker, Lorin M., additional, Vialle, Emiliano, additional, Rajasekaran, Shanmuganathan, additional, El-Sharkawi, Mohammad, additional, Bransford, Richard J., additional, Kanna, Rishi M., additional, Holas, Martin, additional, Muijs, Sander, additional, Popescu, Eugen Cezar, additional, Dandurand, Charlotte, additional, Tee, Jin W., additional, Camino-Willhuber, Gaston, additional, Aly, Mohamed M., additional, Joaquim, Andrei Fernandes, additional, Keynan, Ory, additional, Chhabra, Harvinder Singh, additional, Bigdon, Sebastian, additional, Spiegl, Ulrich J., additional, Schnake, Klaus, additional, and Vaccaro, Alexander R., additional

Published
2024
Full Text
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