The International Spine Study Group works to consistently put forward high quality, meaningful research. The findings are shared via podium presentations, posters, and published manuscripts. Explore all publications from the ISSG here.
Grabel ZJ, Hart RA, Clark AP, et al. Adult Spinal Deformity Knowledge in Orthopedic Spine Surgeons: Impact of Fellowship Training, Experience, and Practice Characteristics. Spine Deform 2018;6:60–6. Read more...
Yagi M, Ames CP, Keefe M, et al. A cost-effectiveness comparisons of adult spinal deformity surgery in the United States and Japan. Eur Spine J 2018;27:678–84. Read more...
Kim HJ, Iyer S, Diebo BG, et al. Clinically Significant Thromboembolic Disease in Adult Spinal Deformity Surgery: Incidence and Risk Factors in 737 Patients. Glob Spine J 2018;8:224–30. Read more...
Passias PG, Horn SR, Poorman GW, et al. Clinical and radiographic presentation and treatment of patients with cervical deformity secondary to thoracolumbar proximal junctional kyphosis are distinct despite achieving similar outcomes: Analysis of 123 prospective CD cases. J Clin Neurosci 2018;56:121–6. Read more...
Challier V, Henry JK, Liu S, et al. Complication Rates and Maintenance of Correction after 3- Column Osteotomy in the Elderly: Report of 55 Patients with 2-Year Follow-up. Clin Neurosurg 2018;83:973–80. Read more...
Poorman GW, Passias PG, Qureshi R, et al. Cost-utility analysis of cervical deformity surgeries using 1-year outcome. Spine J 2018;18:1552–7. Read more...
Goldschmidt E, Angriman F, Ferreyro B, et al. Design and Testing of 2 Novel Scores That Predict Global Sagittal Alignment Utilizing Cervical or Lumbar Plain Radiographs. Clin Neurosurg 2018;82:163–71. Read more...
Neuman BJ, Ailon T, Scheer JK, et al. Development and validation of a novel adult spinal deformity surgical invasiveness score: Analysis of 464 patients. Neurosurgery 2018;82:847–52. Read more...
Scheer JK, Osorio JA, Smith JS, et al. Development of a Preoperative Predictive Model for Reaching the Oswestry Disability Index Minimal Clinically Important Difference for Adult Spinal Deformity Patients. Spine Deform 2018;6:593–9. Read more...
Scheer JK, Oh T, Smith JS, et al. Development of a validated computer-based preoperative predictive model for pseudarthrosis with 91% accuracy in 336 adult spinal deformity patients. Neurosurg Focus;45. Epub ahead of print 2018. DOI: 10.3171/2018.8.FOCUS18246. Read more...
Passias PG, Jalai CM, Worley N, et al. Development of new-onset cervical deformity in nonoperative adult spinal deformity patients with 2-year follow-up. Int J Spine Surg 2018;12:725–34. Read more...
Kang J, Hosogane N, Ames C, et al. Diversity in surgical decision strategies for adult spine deformity treatment: The effects of neurosurgery or orthopedic training background and surgical experience. Neurospine 2018;15:353–61. Read more...
Diebo BG, Lafage V, Varghese JJ, et al. After 9 Years of 3-Column Osteotomies, Are We Doing Better? Performance Curve Analysis of 573 Surgeries with 2-Year Follow-up. Clin Neurosurg 2018;83:69–75. Read more...
Iyer S, Klineberg EO, Zebala LP, et al. Dural Tears in Adult Deformity Surgery: Incidence, Risk Factors, and Outcomes. Glob Spine J 2018;8:25–31. Read more...
Passias PG, Bortz C, Horn S, et al. Drivers of Cervical Deformity Have a Strong Influence on Achieving Optimal Radiographic and Clinical Outcomes at 1 Year After Cervical Deformity Surgery. World Neurosurg 2018;112:e61–8. Read more...
Hosogane N, Ames C, Matsumoto M, et al. Ethnic variations in radiographic parameters and SRS22 scores in adult spinal deformity. Clin Spine Surg 2018;31:216–21. Read more...
Passias PG, Horn SR, Oh C, et al. Evaluating cervical deformity corrective surgery outcomes at 1-year using current patient-derived and functional measures: are they adequate? J spine Surg (Hong Kong) 2018;4:295–303. Read more...
Miller EK, Vila-Casademunt A, Neuman BJ, et al. External validation of the adult spinal deformity (ASD) frailty index (ASD-FI). Eur Spine J 2018;27:2331–8. Read more...
Miller EK, Lenke LG, Neuman BJ, et al. External validation of the adult spinal deformity (asd) frailty index (asd-fi) in the scoli-risk-1 patient database. Spine (Phila Pa 1976) 2018;43:1426–31. Read more...
Reid DBC, Daniels AH, Ailon T, et al. Frailty and Health-Related Quality of Life Improvement Following Adult Spinal Deformity Surgery. World Neurosurg 2018;112:e548–54. Read more...
Eastlack RK, Ledesma JB, Tran S, et al. Home Versus Rehabilitation: Factors that Influence Disposition After Minimally Invasive Surgery in Adult Spinal Deformity Surgery. World Neurosurg 2018;118:e610–5. Read more...
Protopsaltis TS, Diebo BG, Lafage R, et al. Identifying thoracic compensation and predicting reciprocal thoracic kyphosis and proximal junctional kyphosis in adult spinal deformity surgery. Spine (Phila Pa 1976) 2018;43:1479–86. Read more...
Hart RA, Rastegar F, Contag A, et al. Inter-and intra-rater reliability of the hart-ISSG proximal junctional failure severity scale. Spine (Phila Pa 1976) 2018;43:E461–7. Read more...
Protopsaltis TS, Ramchandran S, Hamilton DK, et al. Analysis of Successful Versus Failed Radiographic Outcomes After Cervical Deformity Surgery. Spine (Phila Pa 1976) 2018;43:E733–81. Read more...
Kelly MP, Kim HJ, Ames CP, et al. Minimum Detectable Measurement Difference for HealthRelated Quality of Life Measures Varies With Age and Disability in Adult Spinal Deformity: Implications for Calculating Minimal Clinically Important Difference. Spine (Phila Pa 1976) 2018;43:E790–5. Read more...
Scheer JK, Hostin R, Robinson C, et al. Operative Management of Adult Spinal Deformity Results in Significant Increases in QALYs Gained Compared to Nonoperative Management. Spine (Phila Pa 1976) 2018;43:339–47. Read more...
Ailon T, Smith JS, Shaffrey CI, et al. Patients with Adult Spinal Deformity with Previous Fusions Have an Equal Chance of Reaching Substantial Clinical Benefit Thresholds in Health-Related Quality of Life Measures but Do Not Reach the Same Absolute Level of Improvement. World Neurosurg 2018;116:e354–61. Read more...
Ailon T, Smith JS, Shaffrey CI, et al. Outcomes of Operative Treatment for Adult Cervical Deformity: A Prospective Multicenter Assessment with 1-Year Follow-up. Clin Neurosurg 2018;83:1031–9. Read more...
Passias PG, Jalai CM, Line BG, et al. Patient profiling can identify patients with adult spinal deformity (ASD) at risk for conversion from nonoperative to surgical treatment: initial steps to reduce ineffective ASD management. Spine J 2018;18:234–44. Read more...
Uribe JS, Januszewski J, Wang M, et al. Patients with high pelvic tilt achieve the same clinical success as those with low pelvic tilt after minimally invasive adult deformity surgery. Clin Neurosurg 2018;83:270–6. Read more...
Daniels AH, Bess S, Line B, et al. Peak Timing for Complications After Adult Spinal Deformity Surgery. World Neurosurg 2018;115:e509–15. Read more...
Passias PG, Vasquez-Montes D, Poorman GW, et al. Predictive model for distal junctional kyphosis after cervical deformity surgery. Spine J 2018;18:2187–94. Read more...
Safaee MM, Scheer JK, Ailon T, et al. Predictive Modeling of Length of Hospital Stay Following Adult Spinal Deformity Correction: Analysis of 653 Patients with an Accuracy of 75% within 2 Days. World Neurosurg 2018;115:e422–7. Read more...
Passias PG, Jalai CM, Lafage V, et al. Primary drivers of adult cervical deformity: Prevalence, variations in presentation, and effect of surgical treatment strategies on early postoperative alignment. Clin Neurosurg 2018;83:651–9. Read more...
Smith JS, Shaffrey CI, Kim HJ, et al. Prospective multicenter assessment of all-cause mortality following surgery for adult cervical deformity. Clin Neurosurg 2018;83:1277–85. Read more...
Miller EK, Ailon T, Neuman BJ, et al. Assessment of a Novel Adult Cervical Deformity Frailty Index as a Component of Preoperative Risk Stratification. World Neurosurg 2018;109:e800–6. Read more...
Ramchandran S, Protopsaltis TS, Sciubba D, et al. Prospective multi-centric evaluation of upper cervical and infra-cervical sagittal compensatory alignment in patients with adult cervical deformity. Eur Spine J 2018;27:416–25. Read more...
Ailon T, Hamilton DK, Klineberg E, et al. Radiographic Fusion Grade Does Not Impact HealthRelated Quality of Life in the Absence of Instrumentation Failure for Patients Undergoing Posterior Instrumented Fusion for Adult Spinal Deformity. World Neurosurg 2018;117:e1–7. Read more...
Passias PG, Jalai CM, Lafage V, et al. Recovery Kinetics of Radiographic and Implant-Related Revision Patients Following Adult Spinal Deformity Surgery. Neurosurgery 2018;83:700–8. Read more...
Witiw CD, Fessler RG, Nguyen S, et al. Re-operation after Long-Segment Fusions for Adult Spinal Deformity: The Impact of Extending the Construct below the Lumbar Spine. Clin Neurosurg 2018;82:211–8. Read more...
Daniels AH, DePasse JM, Durand W, et al. Rod Fracture After Apparently Solid Radiographic Fusion in Adult Spinal Deformity Patients. World Neurosurg 2018;117:e530–7. Read more...
Protopsaltis T, Terran J, Soroceanu A, et al. T1 slope minus cervical lordosis (TS-CL), the cervical answer to PI-LL, defines cervical sagittal deformity in patients undergoing thoracolumbar osteotomy. Int J Spine Surg 2018;12:362–70. Read more...
Pellisé F, Vila-Casademunt A, Núñez-Pereira S, et al. The Adult Deformity Surgery Complexity Index (ADSCI): a valid tool to quantify the complexity of posterior adult spinal deformity surgery and predict postoperative complications. Spine J 2018;18:216–25. Read more...
Protopsaltis TS, Lafage R, Smith JS, et al. The Lumbar Pelvic Angle, the Lumbar Component of the T1 Pelvic Angle, Correlates with HRQOL, PI-LL Mismatch, and it Predicts Global Alignment. Spine (Phila Pa 1976) 2018;43:681–7. Read more...
Park P, Fu K-M, Mummaneni PV, et al. The impact of age on surgical goals for spinopelvic alignment in minimally invasive surgery for adult spinal deformity. J Neurosurg Spine 2018;29:560–4. Read more...
Raad M, Jain A, Neuman BJ, et al. Association of patient-reported narcotic use with short- and long-term outcomes after adult spinal deformity surgery: Multicenter study of 425 patients with 2-year follow-up. Spine (Phila Pa 1976) 2018;43:1340–6. Read more...
Iyer S, Kim HJ, Bao H, et al. The Posterior Use of BMP-2 in Cervical Deformity Surgery Does Not Result in Increased Early Complications: A Prospective Multicenter Study. Glob Spine J 2018;8:622–8. Read more...
Passias PG, Horn SR, Bortz CA, et al. The relationship between improvements in myelopathy and sagittal realignment in cervical deformity surgery outcomes. Spine (Phila Pa 1976) 2018;43:1117–24. Read more...
Raad M, Neuman BJ, Jain A, et al. The use of patient-reported preoperative activity levels as a stratification tool for short-term and long-term outcomes in patients with adult spinal deformity. J Neurosurg Spine 2018;29:68–74. Read more...
Chou D, Mummaneni P, Anand N, et al. Treatment of the Fractional Curve of Adult Scoliosis With Circumferential Minimally Invasive Surgery Versus Traditional, Open Surgery: An Analysis of Surgical Outcomes. Glob Spine J 2018;8:827–33. Read more...
Scheer JK, Lafage R, Schwab FJ, et al. Under Correction of Sagittal Deformities Based on Ageadjusted Alignment Thresholds Leads to Worse Health-related Quality of Life whereas over Correction Provides No Additional Benefit. Spine (Phila Pa 1976) 2018;43:388–93. Read more...
Khalsa AS, Mundis GM, Yagi M, et al. Variability in Assessing Spinopelvic Parameters with Lumbosacral Transitional Vertebrae. Spine (Phila Pa 1976) 2018;43:813–6. Read more...
Langella F, Villafañe JH, Lafage V, et al. Xipho-pubic angle (XPA) correlates with patient’s reported outcomes in a population of adult spinal deformity: results from a multi-center cohort study. Eur Spine J 2018;27:670–7. Read more...
Yeramaneni S, Ames CP, Bess S, et al. Center variation in episode-of-care costs for adult spinal deformity surgery: results from a prospective, multicenter database. Spine J 2018;18:1829–36. Read more...
Passias PG, Horn SR, Jalai CM, et al. Cervical alignment changes in patients developing proximal junctional kyphosis following surgical correction of adult spinal deformity. Clin Neurosurg 2018;83:675–82. Read more...
Passias PG, Poorman GW, Lafage V, et al. Cervical Versus Thoracolumbar Spinal Deformities A Comparison of Baseline Quality-of-Life Burden. Clin Spine Surg 2018;31:413–9. Read more...
Passias PG, Jalai CM, Smith JS, et al. Characterizing Adult Cervical Deformity and Disability Based on Existing Cervical and Adult Deformity Classification Schemes at Presentation and Following Correction. Clin Neurosurg 2018;82:192–201. Read more...