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2. Consumer Information in Higher Education

Author

Institute for College Access & Success, Robertson, Brett, and Stein, Beth

Abstract

College choices are among the most consequential decisions individuals make in their lifetimes. Students are entitled to information that meets five principles: simple, salient, comparable, timely, and trusted. "Consumer Information in Higher Education" describes how research informs these five key principles and recommends improvements to three key consumer information tools in higher education: financial aid offer communications, the gainful employment disclosure template, and the College Scorecard website. [This report was written with the assistance of Lindsay Ahlman, Debbie Cochrane, Neha Dalal, and Veronica Gonzalez.]

Published
2019

4. Return to Work Following Tibial Tubercle Osteotomy for Patellofemoral Osteoarthritis and Pain.

Author

Agarwalla, Avinesh, Liu, Joseph, Kalbian, Irene, Garcia, Grant, Shubin Stein, Beth, and Wu, Hao-Hua

Subjects
Fulkerson osteotomy, diagnosis, osteoarthritis, tibial tubercle osteotomy, Adult, Humans, Osteoarthritis, Knee, Osteotomy, Pain, Retrospective Studies, Return to Work, Young Adult
Abstract

PURPOSE: To evaluate the ability of patients to return to work following anteromedialization (AMZ) tibial tubercle osteotomy (TTO) due to isolated patellofemoral osteoarthritis or pain. METHODS: Consecutive patients undergoing AMZ TTO were reviewed retrospectively at a minimum of 1 year postoperatively. Patients completed a subjective work questionnaire, a visual analog scale for pain, as well as a Kujala questionnaire and satisfaction questionnaire. RESULTS: Fifty-seven patients (61 knees; average age: 32.7 ± 9.6 years) were contacted at an average follow-up of 4.86 ± 2.84 years postoperatively. The preoperative Kujala score improved from 55.7 ± 17.8 to 84.6 ± 15.8 at final follow-up (P < 0.001). Thirty-seven patients (64.9%) were employed within 3 years prior to surgery and 34 patients (91.9%) were able to return to work by 2.8 ± 2.6 months postoperatively. However, only 27 patients (73.0%) of patients were able to return to the same level of occupational intensity. Patients who held sedentary, light-, medium-, or high-intensity occupations were able to return to work at a rate of 100.0%, 93.8%, 77.8%, and 100.0% by 2.2 months, 3.0 months, 3.1 months, and 4.0 months, postoperatively. No patients underwent revision TTO or conversion to arthroplasty by the time of final follow-up. CONCLUSION: In patients with focal patellofemoral osteoarthritis or pain, AMZ TTO provides a high rate of return to work (91.9%) by 2.8 ± 2.6 months postoperatively. Patients with higher intensity occupations may take longer to return to work than those with less physically demanding occupations. LEVEL OF EVIDENCE: III.

Published
2021

6. Of Metrics and Markets: Measuring Post-College Employment Success

Author

Institute for College Access & Success, Dalal, Neha, Stein, Beth, and Thompson, Jessica

Abstract

This new TICAS (The Institute for College Access & Success) report details existing requirements that govern the calculation and provision of post-college employment metrics, documents weaknesses in existing data, and recommends federal and state policy changes to support comparable, accurate, accessible information for measuring post-college employment outcomes.

Published
2018

8. Many Radiographic and Magnetic Resonance Imaging Assessments for Surgical Decision Making in Pediatric Patellofemoral Instability Patients Demonstrate Poor Interrater Reliability

Author

Brady, Jacqueline M., Chambers, Caitlin C., Ellis, Henry B., Farr, Jack, Heyworth, Benton E., Koh, Jason L., Kramer, Dennis E., Magnussen, Robert A., Redler, Lauren H., Sherman, Seth L., Tompkins, Marc A., Wilson, Philip L., Fabricant, Peter D., Heath, Madison R., Mintz, Douglas N., Emery, Kathleen, Veerkamp, Matthew, Gruber, Simone, Green, Daniel W., Strickland, Sabrina M., Wall, Eric J., Shubin Stein, Beth E., and Parikh, Shital N.

Published
2022
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9. Variation in Surgical Technique for Medial Patellofemoral Ligament Reconstruction in Skeletally Immature Patients: Data From the JUPITER Prospective Multicenter Study Group.

Author

Heyworth, Benton E., Hidalgo Perea, Sofia, Green, Daniel W., Veerkamp, Matthew W., Wall, Eric J., Wilson, Philip L., Ellis, Henry B., Chipman, Danielle E., Shubin Stein, Beth E., Parikh, Shital N., Brady, Jacqueline, Fabricant, Peter, Farr, Jack, Koh, Jason, Kramer, Dennis, Magnussen, Robert, Milewski, Matthew, Redler, Lauren, Strickland, Sabrina, and Tompkins, Marc

Published
2025
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10. Electrodiagnosis of Guillain-Barre syndrome in the International GBS Outcome Study: Differences in methods and reference values

Author

Addington, J.M., Ajroud-Driss, S., Andersen, H., Antonini, G., Attarian, S., Badrising, U.A., Balloy, G., Barroso, F.A., Bateman, K., Bella, I.R., Benedetti, L., van den Bergh, P., Bertorini, T.E., Bhavaraju-Sanka, R., Bianco, M., Brannagan, T.H., Briani, C., Buerrmann, Busby, M., Butterworth, S., Casasnovas, C., Cavaletti, G., Chao, C.C., Chavada, G., Chen, S., Claeys, K.G., Conti, M.E., Cornblath, D.R., Cosgrove, J.S., Dalakas, M.C., van Damme, P., Dardiotis, E., Davidson, A., Derejko, M.A., van Dijk, G.W., Dimachkie, M.M., van Doorn, P.A., Dornonville de la Cour, C., Echaniz-Laguna, A., Eftimov, F., Faber, C.G., Fazio, R., Feasby, T.E., Fokke, C., Fujioka, T., Fulgenzi, E.A., Galassi, G., Garcia-Sobrino, T., Garssen, M.P.J., Gijsbers, C.J., Gilchrist, J.M., Gilhuis, H.J., Goldstein, J.M., Gorson, K.C., Goyal, N.A., Granit, V., Grisanti, S.T.E., Gutiérrez-Gutiérrez, Gutmann, L., Hadden, R.D.M., Harbo, T., Hartung, H.P., Holbech, J.V., Holt, J.K.L., Hsieh, S.T., Htut, M., Hughes, R.A.C., Illa, I., Islam, B., Islam, Z., Jacobs, B.C., Fehmi, J., Jellema, K., Jerico Pascual, I., Kaida, K., Karafiath, S., Katzberg, H.D., Khoshnoodi, M.A., Kiers, L., Kimpinski, K., Kleyweg, R.P., Kokubun, N., Kolb, N.A., van Koningsveld, R., van der Kooi, A.J., Kramers, J.C.H.M., Kuitwaard, K., Kusunoki, S., Kuwabara, S., Kwan, J.Y., Ladha, S.S., Landschoff Lassen, L., Lawson, V., Lehmann, H.C., Lee Pan, E., Lunn, M.P.T., Manji, H., Marfia, G.A., Márquez Infante, C., Martin-Aguilar, L., Martinez Hernandez, E., Mataluni, G., Mattiazi, M., McDermott, C.J., Meekins, G.D., Miller, J.A.L., Mohammad, Q.D., Monges, M.S., Moris de la Tassa, G., Nascimbene, C., Navacerrada-Barrero, F.J., Nobile-Orazio, E., Nowak, R.J., Orizaola, P.J., Osei-Bonsu, M., Pardal, A.M., Pardo, J., Pascuzzi, R.M., Péréon, Y., Pulley, M.T., Querol, L., Reddel, S.W., van der Ree, T., Reisin, R.C., Rinaldi, S., Roberts, R.C., Rojas-Marcos, I., Rudnicki, Sachs, G.M., Samijn, J.P.A., Santoro, L., Schenone, A., Sedano Tous, M.J., Shahrizaila, N., Sheikh, K.A., Silvestri, N.J., Sindrup, S.H., Sommer, C.L., Stein, B., Song, Y., Stino, A.M., Tankisi, H., Tannemaat, M.R., Twydell, P., Vélez-Santamaria, P.V., Varrato, J.D., Vermeij, F.H., Visser, L.H., Vytopil, M.V., Waheed, W., Walgaard, C., Wang, Y.Z., Willison, H.J., Wirtz, P.W., Yamagishi, Y., Zhou, L., Zivkovic, S.A., Arends, Samuel, Drenthen, Judith, van den Bergh, Peter, Franssen, Hessel, Hadden, Robert D.M., Islam, Badrul, Kuwabara, Satoshi, Reisin, Ricardo C., Shahrizaila, Nortina, Amino, Hiroshi, Antonini, Giovanni, Attarian, Shahram, Balducci, Claudia, Barroso, Fabio, Bertorini, Tulio, Binda, Davide, Brannagan, Thomas H., Buermann, Jan, Casasnovas, Carlos, Cavaletti, Guido, Chao, Chi-Chao, Dimachkie, Mazen M., Fulgenzi, Ernesto A., Galassi, Giuliana, Gutiérrez Gutiérrez, Gerardo, Harbo, Thomas, Hartung, Hans-Peter, Hsieh, Sung-Tsang, Kiers, Lynette, Lehmann, Helmar C., Manganelli, Fiore, Marfia, Girolama A., Mataluni, Giorgia, Pardo, Julio, Péréon, Yann, Rajabally, Yusuf A., Santoro, Lucio, Sekiguchi, Yukari, Stein, Beth, Stettner, Mark, Uncini, Antonino, Verboon, Christine, Verhamme, Camiel, Vytopil, Michal, Waheed, Waqar, Wang, Min, Zivkovic, Sasha, Jacobs, Bart C., and Cornblath, David R.

Published
2022
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12. Patellofemoral Arthritis

Author

Wang, Dean, Strickland, Sabrina M., Shubin Stein, Beth E., Shubin Stein, Beth E., editor, and Strickland, Sabrina M., editor

Published
2019
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14. List of Contributors

Author

Algan, Sheila M., primary, Andrews, Kelsey, additional, Ballantine-Talmadge, Sherrie, additional, Beck, Jennifer J., additional, Birkelo, Jamie R., additional, Bogunovic, Ljiljana, additional, Bradsell, Hannah L., additional, Brady, Jacqueline M., additional, Branche, Katherine C., additional, Buzin, Scott, additional, Casey, Ellen K., additional, Chambers, Caitlin C., additional, Cheney, Sarah M., additional, Chu, Stephanie, additional, Cichanowski, Heather R., additional, Cline, Kelly E., additional, Edwards, Sara, additional, Eliasberg, Claire D., additional, Fierro, Elizabeth A., additional, Dittmer Flemig, Alison, additional, Frank, Rachel M., additional, Friel, Nicole A., additional, Garvey, Kirsten D., additional, Gianakos, Arianna L., additional, Golan, Elan, additional, Hagen, Mia S., additional, Jimenez, Megan Lisset, additional, Lang, Pamela J., additional, Law, Jody, additional, Liu, Tiffany, additional, Lopez, Matthew T., additional, Lowenstein, Natalie A., additional, Matzkin, Elizabeth G., additional, Mayer, Stephanie W., additional, Moore, Laura, additional, Mulcahey, Mary K., additional, Nielsen, Warren, additional, Parker, Kate M., additional, Pearce, Stephanie S., additional, Raney, Elise B.E., additional, Shubin Stein, Beth E., additional, Soliz, Luis J., additional, Spiker, Andrea M., additional, Sprouse, Katherine, additional, Strickland, Sabrina M., additional, Sutton, Karen M., additional, Valentine, Erika L., additional, Vidal, Leslie B., additional, Weber, Kathleen, additional, Weinstein, Sarah, additional, Wright, Vonda, additional, and Yurek, John W., additional

Published
2022
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18. Patient-Reported Outcomes and Factors Associated with Achieving the Minimal Clinically Important Difference After ACL Reconstruction: Results at a Mean 7.7-Year Follow-up

Author

Nwachukwu, Benedict U., Sullivan, Spencer W., Rauck, Ryan C., James, Evan W., Burger, Joost A., Altchek, David W., Allen, Answorth A., Williams, Riley J., III, Coleman, Struan H., Cordasco, Frank A., Fealy, Stephen, Hannafin, Jo A., MacGillivray, John D., Marx, Robert G., Maynard, Michael J., O’Brien, Stephen J., Pearle, Andrew D., Ranawat, Anil S., Rodeo, Scott A., Rose, Howard A., Shubin Stein, Beth E., Strickland, Sabrina M., Warren, Russell F., and Wickiewicz, Thomas L.

Published
2021
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21. The Number of Patellar Dislocation Events Is Associated With Increased Chondral Damage of the Trochlea.

Author

Bram, Joshua T., Lijesen, Emilie, Green, Daniel W., Heyworth, Benton E., Veerkamp, Matthew W., Chipman, Danielle E., Propp, Bennett E., Brady, Jacqueline M., Parikh, Shital N., and Shubin Stein, Beth E.

Subjects
PATELLA injuries, ARTICULAR cartilage injuries, FEMUR injuries, CROSS-sectional method, EYE, NERVES, LOGISTIC regression analysis, MAGNETIC resonance imaging, DESCRIPTIVE statistics, CHI-squared test, JOINT dislocations, KNEE joint, LONGITUDINAL method, ODDS ratio, RESEARCH, COMPARATIVE studies, CONFIDENCE intervals, DATA analysis software, JOINT instability
Abstract

Background: Patellofemoral instability is associated with chondral injuries to the patella, trochlea, and lateral femoral condyle. Although studies have demonstrated an association between patellar dislocations and chondral injuries, the influence of the number of dislocations on chondrosis is not established. Purpose: To elucidate the precise association between the number of patellar dislocation events and the severity of chondral injuries in a multicenter cohort study at the time of patellar stabilization procedures. Study Design: Cross-sectional study; Level of evidence, 2. Methods: A prospective multicenter cohort study (JUPITER [Justifying Patellar Instability Treatment by Early Results]) database was queried for cases of primary patellofemoral instability procedures from December 2016 to September 2022. Cartilage lesions were classified using the International Cartilage Repair Society (ICRS) classification system during an arthroscopic or open evaluation (direct visualization), with grades 2 to 4 considered abnormal. The number of dislocations was categorized as 1, 2-5, and >5. Categorical variables were compared with the chi-square test, and binary logistic regression was performed to identify predictors of the presence of chondral lesions. Results: A total of 938 knees (mean age, 16.2 ± 3.8 years; 61.4% female) were included, with 580 (61.8%) demonstrating a chondral injury. The most affected region was the patella (n = 498 [53.1%]), followed by the lateral femoral condyle (n = 117 [12.5%]) and trochlea (n = 109 [11.6%]). There were no differences in the presence (P =.17) or grade (P =.63) of patellar lesions by the number of dislocations. Patients with >5 dislocations more frequently had trochlear chondral lesions (19.8%) compared with those with fewer dislocations (1, 7.6%; 2-5, 11.0%; P <.001). More dislocations were also associated with a higher proportion of ICRS grade 2 to 4 trochlear lesions (>5, 15.3%; 2-5, 10.0%; 1, 6.9%; P =.015). Combined patellar and trochlear lesions were also more common in those with >5 dislocations (P =.001). In multivariable regression, >5 dislocations was the only variable predictive of a trochlear lesion (odds ratio, 3.03 [95% CI, 1.65-5.58]; P <.001). Conclusion: This large prospective cohort study demonstrated that recurrent patellar dislocations can lead to more severe chondral damage in specific locations in the knee. More than 5 dislocations was associated with a >3-fold increase in the incidence and severity of trochlear chondral injuries. There were no differences in the presence or grade of patellar lesions by the number of dislocations. These findings should caution surgeons regarding prolonged nonoperative treatment. [ABSTRACT FROM AUTHOR]

Published
2024
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22. Isolated Medial Patellofemoral Ligament Reconstruction for Recurrent Patellar Instability Regardless of Tibial Tubercle–Trochlear Groove Distance and Patellar Height: Minimum 5-Year Outcomes.

Author

Dennis, Elizabeth R., Marmor, William A., Propp, Bennett E., Erickson, Brandon J., Gruber, Simone, Brady, Jacqueline M., Nguyen, Joseph T., and Shubin Stein, Beth E.

Subjects
SURGERY, PATIENTS, DATA analysis, QUESTIONNAIRES, TREATMENT effectiveness, MAGNETIC resonance imaging, DESCRIPTIVE statistics, KNEE joint, LONGITUDINAL method, SPORTS re-entry, STATISTICS, DISEASE relapse, PLASTIC surgery, CASE studies, HEALTH outcome assessment, DATA analysis software, JOINT instability, PATELLAR tendon, KNEE surgery
Abstract

Background: It remains unclear which subset of patients with recurrent patellofemoral instability would benefit from a concomitant bony realignment procedure in addition to a medial patellofemoral ligament (MPFL) reconstruction. Purpose: To provide midterm results for patients who underwent an isolated MPFL reconstruction as part of an ongoing prospective trial. Study Design: Case series; Level of evidence, 4. Methods: Patients with recurrent patellar instability were prospectively enrolled in an institutional registry beginning in March 2014. Exclusion criteria included history of a previous surgery for patellar instability, an off-loadable (inferior/lateral) chondral defect, anterior knee pain ≥50% of their chief complaint, and a "jumping J" sign. All patients underwent primary, unilateral, isolated MPFL reconstruction regardless of their bony anatomic characteristics. Patient-reported outcome measures (PROMs), episodes of recurrent instability, and ability to return to sport were obtained annually. Radiographic measurements of baseline radiographs and MRI were obtained at baseline. Results: A total of 138 patients underwent isolated MPFL reconstruction between March 2014 and December 2019. The mean radiographic measurements were tibial tubercle–trochlear groove, 15.1 ± 4.9 mm; Caton-Deschamps index, 1.14 ± 0.16; patellar trochlear index, 46.9% ± 15.1%; trochlear depth index, 2.5 ± 1.2 mm; tibial tubercle to lateral trochlear ridge, −8.4 ± 5.7 mm; and patellar tendon to lateral trochlear ridge, 5.7 ± 6.2 mm. Trochlear dysplasia, defined as a trochlear depth index <3 mm, was present in 79/125 (63%) patients. A total of 50 patients reached ≥5 years, of whom 40 (80%) completed follow-up PROMs. A total of 119 patients reached ≥2 years, of whom 89 (75%) completed follow-up PROMs. Six patients (5%) reported recurrent instability with a mean time of 2.97 years after surgery. All PROMs improved over time except for the Pediatric Functional Activity Brief Scale (Pedi-FABS), which had no change. At 2 years, the mean changes from baseline for Knee injury and Osteoarthritis Outcome Score (KOOS) Quality of Life subscale (QOL), Pedi-FABS, International Knee Documentation Committee (IKDC) score, KOOS Physical Function Short Form (PS), and Kujala score were 42.1, 0.6, 35.1, –23.5, and 32.3, respectively. All changes had P values <.001 except for Pedi-FABS, which showed no change and had P >.999. At 5 years, the mean changes from baseline for KOOS-QOL, Pedi-FABS, IKDC, KOOS-PS, and Kujala score were 42.6, –2.8, 32.6, –21.5, and 31.6, respectively. All changes had P values <.001 except for Pedi-FABS, which showed no change and had P >.453. In total, 89% of patients returned to sport with a mean of 9.1 months. Conclusion: Midterm outcomes for patients who underwent isolated MPFL reconstruction were favorable and were maintained at 5 years. Outcomes for the expanded cohort of patients with a minimum 2-year follow-up support previously published results. [ABSTRACT FROM AUTHOR]

Published
2024
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26. CSF Findings in Relation to Clinical Characteristics, Subtype, and Disease Course in Patients With Guillain-Barré Syndrome

Author

Al-Hakem, Helle, Doets, Alex Y, Stino, Amro Maher, Zivkovic, Sasha A, Andersen, Henning, Willison, Hugh J, Cornblath, David R, Gorson, Kenneth C, Islam, Zhahirul, Mohammad, Quazi Deen, Sindrup, Søren Hein, Kusunoki, Susumu, Davidson, Amy, Casasnovas, Carlos, Bateman, Kathleen, Miller, James A L, van den Berg, Bianca, Verboon, Christine, Roodbol, Joyce, Leonhard, Sonja E, Arends, Samuel, Luijten, Linda W G, Benedetti, Luana, Kuwabara, Satoshi, Van den Bergh, Peter, Monges, Soledad, Marfia, Girolama A, Shahrizaila, Nortina, Galassi, Giuliana, Pereon, Yann, Bürmann, Jan, Kuitwaard, Krista, Kleyweg, Ruud P, Marchesoni, Cintia, Sedano Tous, María J, Querol, Luis, Martín-Aguilar, Lorena, Wang, Yuzhong, Nobile-Orazio, Eduardo, Rinaldi, Simon, Schenone, Angelo, Pardo, Julio, Vermeij, Frederique H, Waheed, Waqar, Lehmann, Helmar C, Granit, Volkan, Stein, Beth, Samijn, Johnny P A, van Dijk, Gert W, Jacobs, Bart C, Neurology, Medical Microbiology & Infectious Diseases, Public Health, and Immunology

Subjects
Neurology (clinical)
Abstract

BACKGROUND AND OBJECTIVES: To investigate CSF findings in relation to clinical and electrodiagnostic subtypes, severity, and outcome of Guillain-Barré syndrome (GBS) based on 1,500 patients in the International GBS Outcome Study. METHODS: Albuminocytologic dissociation (ACD) was defined as an increased protein level (>0.45 g/L) in the absence of elevated white cell count (4 days 84%. High CSF protein levels were associated with a demyelinating subtype, proximal or global muscle weakness, and a reduced likelihood of being able to run at week 2 (odds ratio [OR] 0.42, 95% CI 0.25-0.70; p = 0.001) and week 4 (OR 0.44, 95% CI 0.27-0.72; p = 0.001). Patients with the Miller Fisher syndrome, distal predominant weakness, and normal or equivocal nerve conduction studies were more likely to have lower CSF protein levels. CSF cell count was

Published
2023

41. Cerebrospinal Fluid Findings in Relation to Clinical Characteristics, Subtype, and Disease Course in Patients With Guillain-Barré Syndrome

Author

Al-Hakem, Helle, primary, Doets, Alex Y, additional, Stino, Amro Maher, additional, Zivkovic, Sasha A., additional, Andersen, Henning, additional, Willison, Hugh J, additional, Cornblath, David R, additional, Gorson, Kenneth C, additional, Islam, Zhahirul, additional, Mohammad, Quazi Deen, additional, Sindrup, Søren Hein, additional, Kusunoki, Susumu, additional, Davidson, Amy, additional, Casasnovas, Carlos, additional, Bateman, Kathleen, additional, Miller, James AL, additional, van den Berg, Bianca, additional, Verboon, Christine, additional, Roodbol, Joyce, additional, Leonhard, Sonja E, additional, Arends, Samuel, additional, Luijten, Linda W G, additional, Benedetti, Luana, additional, Kuwabara, Satoshi, additional, Van den Bergh, Peter, additional, Monges, Soledad, additional, Marfia, Girolama A, additional, Shahrizaila, Nortina, additional, Galassi, Giuliana, additional, Pereon, Yann, additional, Bürmann, Jan, additional, Kuitwaard, Krista, additional, Kleyweg, Ruud P, additional, Marchesoni, Cintia, additional, Sedano Tous, María J, additional, Querol, Luis, additional, Martín-Aguilar, Lorena, additional, Wang, Yuzhong, additional, Nobile-Orazio, Eduardo, additional, Rinaldi, Simon, additional, Schenone, Angelo, additional, Pardo, Julio, additional, Vermeij, Frederique H, additional, Waheed, Waqar, additional, Lehmann, Helmar C, additional, Granit, Volkan, additional, Stein, Beth, additional, Cavaletti, Guido, additional, Gutiérrez-Gutiérrez, Gerardo, additional, Barroso, Fabio A, additional, Visser, Leo H, additional, Katzberg, Hans D, additional, Dardiotis, Efthimios, additional, Attarian, Shahram, additional, van der Kooi, Anneke J, additional, Eftimov, Filip, additional, Wirtz, Paul W, additional, PA Samijn, Johnny, additional, Gilhuis, H Jacobus, additional, DM Hadden, Robert, additional, Holt, James KL, additional, Sheikh, Kazim A, additional, Kolb, Noah, additional, Karafiath, Summer, additional, Vytopil, Michal, additional, Antonini, Giovanni, additional, Feasby, Thomas E, additional, Faber, Catharina, additional, Kramers, Hans, additional, Busby, Mark, additional, Roberts, Rhys C, additional, Silvestri, Nicholas J, additional, Fazio, Raffaella, additional, van Dijk, Gert W, additional, Garssen, Marcel PJ, additional, Verschuuren, Jan, additional, Harbo, Thomas, additional, and Jacobs, Bart C, additional

Published
2023
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47. Many Radiographic and Magnetic Resonance Imaging Assessments for Surgical Decision Making in Pediatric Patellofemoral Instability Patients Demonstrate Poor Interrater Reliability

Author

Fabricant, Peter D., primary, Heath, Madison R., additional, Mintz, Douglas N., additional, Emery, Kathleen, additional, Veerkamp, Matthew, additional, Gruber, Simone, additional, Green, Daniel W., additional, Strickland, Sabrina M., additional, Wall, Eric J., additional, Shubin Stein, Beth E., additional, Parikh, Shital N., additional, Brady, Jacqueline M., additional, Chambers, Caitlin C., additional, Ellis, Henry B., additional, Farr, Jack, additional, Heyworth, Benton E., additional, Koh, Jason L., additional, Kramer, Dennis E., additional, Magnussen, Robert A., additional, Redler, Lauren H., additional, Sherman, Seth L., additional, Tompkins, Marc A., additional, and Wilson, Philip L., additional

Published
2022
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50. Electrodiagnosis of Guillain-Barre syndrome in the International GBS Outcome Study: Differences in methods and reference values.

Author

UCL - (SLuc) Centre de référence neuromusculaire, UCL - (SLuc) Service de neurologie, Arends, Samuel, Drenthen, Judith, van den Bergh, Peter, Franssen, Hessel, Hadden, Robert D M, Islam, Badrul, Kuwabara, Satoshi, Reisin, Ricardo C, Shahrizaila, Nortina, Amino, Hiroshi, Antonini, Giovanni, Attarian, Shahram, Balducci, Claudia, Barroso, Fabio, Bertorini, Tulio, Binda, Davide, Brannagan, Thomas H, Buermann, Jan, Casasnovas, Carlos, Cavaletti, Guido, Chao, Chi-Chao, Dimachkie, Mazen M, Fulgenzi, Ernesto A, Galassi, Giuliana, Gutiérrez Gutiérrez, Gerardo, Harbo, Thomas, Hartung, Hans-Peter, Hsieh, Sung-Tsang, Kiers, Lynette, Lehmann, Helmar C, Manganelli, Fiore, Marfia, Girolama A, Mataluni, Giorgia, Pardo, Julio, Péréon, Yann, Rajabally, Yusuf A, Santoro, Lucio, Sekiguchi, Yukari, Stein, Beth, Stettner, Mark, Uncini, Antonino, Verboon, Christine, Verhamme, Camiel, Vytopil, Michal, Waheed, Waqar, Wang, Min, Zivkovic, Sasha, Jacobs, Bart C, Cornblath, David R, IGOS consortium, UCL - (SLuc) Centre de référence neuromusculaire, UCL - (SLuc) Service de neurologie, Arends, Samuel, Drenthen, Judith, van den Bergh, Peter, Franssen, Hessel, Hadden, Robert D M, Islam, Badrul, Kuwabara, Satoshi, Reisin, Ricardo C, Shahrizaila, Nortina, Amino, Hiroshi, Antonini, Giovanni, Attarian, Shahram, Balducci, Claudia, Barroso, Fabio, Bertorini, Tulio, Binda, Davide, Brannagan, Thomas H, Buermann, Jan, Casasnovas, Carlos, Cavaletti, Guido, Chao, Chi-Chao, Dimachkie, Mazen M, Fulgenzi, Ernesto A, Galassi, Giuliana, Gutiérrez Gutiérrez, Gerardo, Harbo, Thomas, Hartung, Hans-Peter, Hsieh, Sung-Tsang, Kiers, Lynette, Lehmann, Helmar C, Manganelli, Fiore, Marfia, Girolama A, Mataluni, Giorgia, Pardo, Julio, Péréon, Yann, Rajabally, Yusuf A, Santoro, Lucio, Sekiguchi, Yukari, Stein, Beth, Stettner, Mark, Uncini, Antonino, Verboon, Christine, Verhamme, Camiel, Vytopil, Michal, Waheed, Waqar, Wang, Min, Zivkovic, Sasha, Jacobs, Bart C, Cornblath, David R, and IGOS consortium

Abstract

To describe the heterogeneity of electrodiagnostic (EDx) studies in Guillain-Barré syndrome (GBS) patients collected as part of the International GBS Outcome Study (IGOS). Prospectively collected clinical and EDx data were available in 957 IGOS patients from 115 centers. Only the first EDx study was included in the current analysis. Median timing of the EDx study was 7 days (interquartile range 4-11) from symptom onset. Methodology varied between centers, countries and regions. Reference values from the responding 103 centers were derived locally in 49%, from publications in 37% and from a combination of these in the remaining 15%. Amplitude measurement in the EDx studies (baseline-to-peak or peak-to-peak) differed from the way this was done in the reference values, in 22% of motor and 39% of sensory conduction. There was marked variability in both motor and sensory reference values, although only a few outliers accounted for this. Our study showed extensive variation in the clinical practice of EDx in GBS patients among IGOS centers across the regions. Besides EDx variation in GBS patients participating in IGOS, this diversity is likely to be present in other neuromuscular disorders and centers. This underlines the need for standardization of EDx in future multinational GBS studies.

Published
2022

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