scholarly journals 326 The Impact of Surgeon Experience on Outcomes Following 3-Column Osteotomy for Adult Spinal Deformity: Overcoming the Learning Curve and Implementing Better Practices

Neurosurgery ◽  
2018 ◽  
Vol 65 (CN_suppl_1) ◽  
pp. 131-131 ◽  
Author(s):  
Darryl Lau ◽  
Cecilia Dalle ore ◽  
Vedat Deviren ◽  
Christopher P Ames
Keyword(s):  
Learning Curve ◽  
Spinal Deformity ◽  
Adult Spinal Deformity ◽  
Surgeon Experience ◽  
The Impact

scholarly journals Body Mass Index Greater Than 35 Is Associated With Increased Major and Radiographic Complications After Minimally Invasive Adult Spinal Deformity Surgery

Neurosurgery ◽  
2019 ◽  
Vol 66 (Supplement_1) ◽  
Author(s):  
Khoi D Than ◽  
Stacie Tran ◽  
Dean Chou ◽  
Kai-Ming G Fu ◽  
Paul Park ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Minimally Invasive ◽  
Clinical Outcomes ◽  
Body Mass ◽  
Spinal Deformity ◽  
Adult Spinal Deformity ◽  
Surgical Site Infections ◽  
Neurological Complications ◽  
Obese Patients ◽  
The Impact

Abstract INTRODUCTION As the obesity epidemic continues and the recognition of adult spinal deformity (ASD) increases, a growing number of obese patients are undergoing surgery to correct ASD. Minimally invasive techniques may be advantageous for obese patients to minimize blood loss. To date, the literature examining the impact of obesity on complications after minimally invasive ASD surgery has been scarce. METHODS A multicenter database of ASD patients was reviewed. Patients who had at least 2 yr of follow-up were analyzed. Demographic, radiographic, clinical outcomes, and postoperative complications were assessed. A body mass index (BMI) threshold of 35 was selected to more accurately reflect real-world practices. RESULTS A total of 220 patients were included: 196 had a BMI <35 and 24 had a BMI >35 (26.3 vs 38.4, P < .001). When comparing patients with a BMI threshold of 35, there was no difference in baseline age, levels instrumented, and most pre- and postoperative radiographic parameters and clinical outcomes. Patients with BMI >35 did have higher preopearative back pain than BMI <35 (visual analog scale 7.9 vs 6.8, P = .013) and postoperative Cobb angle (17.8 vs 12.6, P = .031). There was no difference between groups in overall complications, reoperations, infections, implant failures, surgical site infections, or minor, cardiopulmonary, gastrointestinal, and operative complications. Patients with BMI >35 had more major (45.8% vs 23.0%, P = .015) and radiographic (37.5% vs 19.9%, P = .049) complications than patients with BMI <35. Patients with BMI <35 had more neurological complications (17.3% vs 0%, P = .026). CONCLUSION In this retrospective review of a large database of patients undergoing minimally invasive surgery for ASD, patients with BMI > 35 suffered from more major and radiographic complications but fewer neurological complications than patients with BMI <35.

Does MIS Surgery Allow for Shorter Constructs in the Surgical Treatment of Adult Spinal Deformity?

Neurosurgery ◽  
2017 ◽  
Vol 80 (3) ◽  
pp. 489-497 ◽  
Author(s):  
Juan S. Uribe ◽  
Joshua Beckman ◽  
Praveen V. Mummaneni ◽  
David Okonkwo ◽  
Pierce Nunley ◽  
...  
Keyword(s):  
Length Of Stay ◽  
Blood Loss ◽  
Clinical Outcomes ◽  
Spinal Deformity ◽  
Lumbar Lordosis ◽  
Adult Spinal Deformity ◽  
Radiographic Parameters ◽  
Estimated Blood Loss ◽  
Significant Difference ◽  
The Impact

Abstract BACKGROUND: The length of construct can potentially influence perioperative risks in adult spinal deformity (ASD) surgery. A head-to-head comparison between open and minimally invasive surgery (MIS) techniques for treatment of ASD has yet to be performed. OBJECTIVE: To examine the impact of MIS approaches on construct length and clinical outcomes in comparison to traditional open approaches when treating similar ASD profiles. METHODS: Two multicenter databases for ASD, 1 involving MIS procedures and the other open procedures, were propensity matched for clinical and radiographic parameters in this observational study. Inclusion criteria were ASD and minimum 2-year follow-up. Independent t-test and chi-square test were used to evaluate and compare outcomes. RESULTS: A total of 1215 patients were identified, with 84 patients matched in each group. Statistical significance was found for mean levels fused (4.8 for circumferential MIS [cMIS] and 10.1 for open), mean interbody fusion levels (3.6 cMIS and 2.4 open), blood loss (estimated blood loss 488 mL cMIS and 1762 mL open), and hospital length of stay (6.7 days cMIS and 9.7 days open). There was no significant difference in preoperative radiographic parameters or postoperative clinical outcomes (Owestry Disability Index and visual analog scale) between groups. There was a significant difference in postoperative lumbar lordosis (43.3° cMIS and 49.8° open) and pelvic incidence-lumbar lordosis correction (10.6° cMIS and 5.2° open) in the open group. There was no significant difference in reoperation rate between the 2 groups. CONCLUSION: MIS techniques for ASD may reduce construct length, reoperation rates, blood loss, and length of stay without affecting clinical and radiographic outcomes when compared to a similar group of patients treated with open techniques.

The Impact of Positive Sagittal Balance in Adult Spinal Deformity

Spine ◽  
2005 ◽  
Vol 30 (18) ◽  
pp. 2024-2029 ◽  
Author(s):  
Steven D. Glassman ◽  
Keith Bridwell ◽  
John R. Dimar ◽  
William Horton ◽  
Sigurd Berven ◽  
...  
Keyword(s):  
Spinal Deformity ◽  
Sagittal Balance ◽  
Adult Spinal Deformity ◽  
The Impact

scholarly journals Less invasive spinal deformity surgery: the impact of the learning curve at tertiary spine care centers

2019 ◽  
Vol 31 (6) ◽  
pp. 865-872 ◽  
Author(s):  
Michael Y. Wang ◽  
Stacie Tran ◽  
G. Damian Brusko ◽  
Robert Eastlack ◽  
Paul Park ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Learning Curve ◽  
Clinical Outcomes ◽  
Spinal Deformity ◽  
Adult Spinal Deformity ◽  
Perioperative Outcomes ◽  
Less Invasive ◽  
The Past ◽  
Spinal Deformity Surgery ◽  
Spine Care

OBJECTIVEThe past decade has seen major advances in techniques for treating more complex spinal disorders using minimally invasive surgery (MIS). While appealing from the standpoint of patient perioperative outcomes, a major impediment to adoption has been the significant learning curve in utilizing MIS techniques.METHODSData were retrospectively analyzed from a multicenter series of adult spinal deformity surgeries treated at eight tertiary spine care centers in the period from 2008 to 2015. All patients had undergone a less invasive or hybrid approach for a deformity correction satisfying the following inclusion criteria at baseline: coronal Cobb angle ≥ 20°, sagittal vertical axis (SVA) > 5 cm, or pelvic tilt > 20°. Analyzed data included baseline demographic details, severity of deformity, surgical metrics, clinical outcomes (numeric rating scale [NRS] score and Oswestry Disability Index [ODI]), radiographic outcomes, and complications. A minimum follow-up of 2 years was required for study inclusion.RESULTSAcross the 8-year study period, among 222 patients, there was a trend toward treating increasingly morbid patients, with the mean age increasing from 50.7 to 62.4 years (p = 0.013) and the BMI increasing from 25.5 to 31.4 kg/m2 (p = 0.12). There was no statistical difference in the severity of coronal and sagittal deformity treated over the study period. With regard to radiographic changes following surgery, there was an increasing emphasis on sagittal correction and, conversely, less coronal correction. There was no statistically significant difference in clinical outcomes over the 8-year period, and meaningful improvements were seen in all years (ODI range of improvement: 15.0–26.9). Neither were there statistically significant differences in major complications; however, minor complications were seen less often as the surgeons gained experience (p = 0.064). Operative time was decreased on average by 47% over the 8-year period.Trends in surgical practice were seen as well. Total fusion construct length was unchanged until the last year when there was a marked decrease in conjunction with a decrease in interbody levels treated (p = 0.004) while obtaining a higher degree of sagittal correction, suggesting more selective but powerful interbody reduction methods as reflected by an increase in the lateral and anterior column resection techniques being utilized.CONCLUSIONSThe use of minimally invasive methods for adult spinal deformity surgery has evolved over the past decade. Experienced surgeons are treating older and more morbid patients with similar outcomes. A reliance on selective, more powerful interbody approaches is increasing as well.

The impact of preoperative supine radiographs on surgical strategy in adult spinal deformity

2021 ◽  
pp. 1-7
Author(s):  
Francis Lovecchio ◽  
Jonathan Charles Elysee ◽  
Renaud Lafage ◽  
Jeff Varghese ◽  
Mathieu Bannwarth ◽  
...  
Keyword(s):  
Spinal Deformity ◽  
Lumbar Lordosis ◽  
Adult Spinal Deformity ◽  
Surgical Decision ◽  
Spinal Flexibility ◽  
Grade 3 ◽  
Upper Instrumented Vertebra ◽  
Invasive Techniques ◽  
The Impact ◽  
Surgical Decision Making

OBJECTIVE Preoperative planning for adult spinal deformity (ASD) surgery is essential to prepare the surgical team and consistently obtain postoperative alignment goals. Positional imaging may allow the surgeon to evaluate spinal flexibility and anticipate the need for more invasive techniques. The purpose of this study was to determine whether spine flexibility, defined by the change in alignment between supine and standing imaging, is associated with the need for an osteotomy in ASD surgery. METHODS A single-center, dual-surgeon retrospective analysis was performed of adult patients with ASD who underwent correction of a thoracolumbar deformity between 2014 and 2018 (pelvis to upper instrumented vertebra between L1 and T9). Patients were stratified into osteotomy (Ost) and no-osteotomy (NOst) cohorts according to whether an osteotomy was performed (Schwab grade 2 or higher). Demographic, surgical, and radiographic parameters were compared. The sagittal correction from intraoperative prone positioning alone (sagittal flexibility percentage [Sflex%]) was assessed by comparing the change in lumbar lordosis (LL) between preoperative supine to standing radiographs and preoperative to postoperative alignment. RESULTS Demographics and preoperative and postoperative sagittal alignment were similar between the Ost (n = 60, 65.9%) and NOst (n = 31, 34.1%) cohorts (p > 0.05). Of all Ost patients, 71.7% had a grade 2 osteotomy (mean 3 per patient), 21.7% had a grade 3 osteotomy, and 12.5% underwent both grade 3 and grade 2 osteotomies. Postoperatively, the NOst and Ost cohorts had similar pelvic incidence minus lumbar lordosis (PI-LL) mismatch (mean PI-LL 5.2° vs 1.2°; p = 0.205). Correction obtained through positioning (Sflex%) was significantly lower for in the osteotomy cohort (38.0% vs 76.3%, p = 0.004). A threshold of Sflex% < 70% predicted the need for osteotomy at a sensitivity of 78%, specificity of 56%, and positive predictive value of 77%. CONCLUSIONS The flexibility of the spine is quantitatively related to the use of an osteotomy. Prospective studies are needed to determine thresholds that may be used to standardize surgical decision-making in ASD surgery.

Global coronal decompensation and adult spinal deformity surgery: comparison of upper-thoracic versus lower-thoracic proximal fixation for long fusions

2021 ◽  
pp. 1-13
Author(s):  
Thomas J. Buell ◽  
Christopher I. Shaffrey ◽  
Han Jo Kim ◽  
Eric O. Klineberg ◽  
Virginie Lafage ◽  
...  
Keyword(s):  
Thoracic Spine ◽  
Spinal Deformity ◽  
Rating Scale ◽  
Numerical Rating Scale ◽  
Adult Spinal Deformity ◽  
Leg Pain ◽  
Sagittal Vertical Axis ◽  
Upper Thoracic ◽  
The Impact

OBJECTIVE Deterioration of global coronal alignment (GCA) may be associated with worse outcomes after adult spinal deformity (ASD) surgery. The impact of fusion length and upper instrumented vertebra (UIV) selection on patients with this complication is unclear. The authors’ objective was to compare outcomes between long sacropelvic fusion with upper-thoracic (UT) UIV and those with lower-thoracic (LT) UIV in patients with worsening GCA ≥ 1 cm. METHODS This was a retrospective analysis of a prospective multicenter database of consecutive ASD patients. Index operations involved instrumented fusion from sacropelvis to thoracic spine. Global coronal deterioration was defined as worsening GCA ≥ 1 cm from preoperation to 2-year follow-up. RESULTS Of 875 potentially eligible patients, 560 (64%) had complete 2-year follow-up data, of which 144 (25.7%) demonstrated worse GCA at 2-year postoperative follow-up (35.4% of UT patients vs 64.6% of LT patients). At baseline, UT patients were younger (61.6 ± 9.9 vs 64.5 ± 8.6 years, p = 0.008), a greater percentage of UT patients had osteoporosis (35.3% vs 16.1%, p = 0.009), and UT patients had worse scoliosis (51.9° ± 22.5° vs 32.5° ± 16.3°, p < 0.001). Index operations were comparable, except UT patients had longer fusions (16.4 ± 0.9 vs 9.7 ± 1.2 levels, p < 0.001) and operative duration (8.6 ± 3.2 vs 7.6 ± 3.0 hours, p = 0.023). At 2-year follow-up, global coronal deterioration averaged 2.7 ± 1.4 cm (1.9 to 4.6 cm, p < 0.001), scoliosis improved (39.3° ± 20.8° to 18.0° ± 14.8°, p < 0.001), and sagittal spinopelvic alignment improved significantly in all patients. UT patients maintained smaller positive C7 sagittal vertical axis (2.7 ± 5.7 vs 4.7 ± 5.7 cm, p = 0.014). Postoperative 2-year health-related quality of life (HRQL) significantly improved from baseline for all patients. HRQL comparisons demonstrated that UT patients had worse Scoliosis Research Society–22r (SRS-22r) Activity (3.2 ± 1.0 vs 3.6 ± 0.8, p = 0.040) and SRS-22r Satisfaction (3.9 ± 1.1 vs 4.3 ± 0.8, p = 0.021) scores. Also, fewer UT patients improved by ≥ 1 minimal clinically important difference in numerical rating scale scores for leg pain (41.3% vs 62.7%, p = 0.020). Comparable percentages of UT and LT patients had complications (208 total, including 53 reoperations, 77 major complications, and 78 minor complications), but the percentage of reoperated patients was higher among UT patients (35.3% vs 18.3%, p = 0.023). UT patients had higher reoperation rates of rod fracture (13.7% vs 2.2%, p = 0.006) and pseudarthrosis (7.8% vs 1.1%, p = 0.006) but not proximal junctional kyphosis (9.8% vs 8.6%, p = 0.810). CONCLUSIONS In ASD patients with worse 2-year GCA after long sacropelvic fusion, UT UIV was associated with worse 2-year HRQL compared with LT UIV. This may suggest that residual global coronal malalignment is clinically less tolerated in ASD patients with longer fusion to the proximal thoracic spine. These results may inform operative planning and improve patient counseling.

P102. Determining the impact of proximal junctional kyphosis on cost utility in adult spinal deformity patients

2021 ◽  
Vol 21 (9) ◽  
pp. S190
Author(s):  
Peter G. Passias ◽  
Oscar Krol ◽  
Lara Passfall ◽  
Nicholas Kummer ◽  
Katherine E. Pierce ◽  
...  
Keyword(s):  
Spinal Deformity ◽  
Adult Spinal Deformity ◽  
Cost Utility ◽  
Proximal Junctional Kyphosis ◽  
The Impact ◽  
Junctional Kyphosis

scholarly journals Classifying Complications: Assessing Adult Spinal Deformity 2-Year Surgical Outcomes

2020 ◽  
Vol 10 (7) ◽  
pp. 896-907
Author(s):  
Eric O. Klineberg ◽  
Peter G. Passias ◽  
Gregory W. Poorman ◽  
Cyrus M. Jalai ◽  
Abiola Atanda ◽  
...  
Keyword(s):  
Postoperative Complications ◽  
Postoperative Complication ◽  
Spinal Deformity ◽  
Surgical Outcomes ◽  
Perioperative Complications ◽  
Adult Spinal Deformity ◽  
Complication Rates ◽  
Estimated Blood Loss ◽  
Patient Reported ◽  
The Impact

Study Design: Retrospective review of prospective database. Objective: Complication rates for adult spinal deformity (ASD) surgery vary widely because there is no accepted system for categorization. Our objective was to identify the impact of complication occurrence, minor-major complication, and Clavien-Dindo complication classification (Cc) on clinical variables and patient-reported outcomes. Methods: Complications in surgical ASD patients with complete baseline and 2-year data were considered intraoperatively, perioperatively (<6 weeks), and postoperatively (>6 weeks). Primary outcome measures were complication timing and severity according to 3 scales: complication presence (yes/no), minor-major, and Cc score. Secondary outcomes were surgical outcomes (estimated blood loss [EBL], length of stay [LOS], reoperation) and health-related quality of life (HRQL) scores. Univariate analyses determined complication presence, type, and Cc grade impact on operative variables and on HRQL scores. Results: Of 167 patients, 30.5% (n = 51) had intraoperative, 48.5% (n = 81) had perioperative, and 58.7% (n = 98) had postoperative complications. Major intraoperative complications were associated with increased EBL ( P < .001) and LOS ( P = .0092). Postoperative complication presence and major postoperative complication were associated with reoperation ( P < .001). At 2 years, major perioperative complications were associated with worse ODI, SF-36, and SRS activity and appearance scores ( P < .02). Increasing perioperative Cc score and postoperative complication presence were the best predictors of worse HRQL outcomes ( P < .05). Conclusion: The Cc Scale was most useful in predicting changes in patient outcomes; at 2 years, patients with raised perioperative Cc scores and postoperative complications saw reduced HRQL improvement. Intraoperative and perioperative complications were associated with worse short-term surgical and inpatient outcomes.

scholarly journals The Impact of Global Alignment and Proportion Score and Bracing on Proximal Junctional Kyphosis in Adult Spinal Deformity

2021 ◽  
pp. 219256822110018
Author(s):  
Elizabeth L. Lord ◽  
Ethan Ayres ◽  
Dainn Woo ◽  
Dennis Vasquez-Montes ◽  
Yesha Parekh ◽  
...  
Keyword(s):  
Spinal Deformity ◽  
Chart Review ◽  
Adult Spinal Deformity ◽  
Retrospective Chart Review ◽  
Global Alignment ◽  
X Rays ◽  
Proximal Junctional Kyphosis ◽  
Upper Instrumented Vertebra ◽  
The Impact ◽  
Junctional Kyphosis

Study Design: Retrospective chart review. Objective: The goal of this study is to examine the relationship between global alignment and proportion (GAP) score and postoperative orthoses with likelihood of developing proximal junctional kyphosis (PJK). Methods: Patients who underwent thoracic or lumbar fusions of ≥4 levels for adult spinal deformity (ASD) with 1-year post-operative alignment x-rays were included. Chart review was conducted to determine spinopelvic alignment parameters, PJK, and reoperation. Results: A total of 81 patients were included; baseline and 1-year postoperative alignment did not differ between patients with and without PJK. There was no PJK in 53.1%, 29.6% had PJK from 10-20°, and 17.3% had severe PJK over 20° (sPJK). At baseline, 80% of patients had severely disproportioned GAP, 13.75% moderate, 6.25% proportioned. GAP improved across the population, but improved GAP was not associated with sPJK. Greater correction of the upper instrumented vertebra to pelvic angle (UIV-PA) was associated with a larger PJK angle (PJKA) change (R = -0.28) as was the 1 year T1-upper instrumented vertebra (T1-UIV) angle (R = 0.30), both P < .05. GAP change was not correlated with PJKA change. Postoperative orthoses were used in 46% of patients and did not impact sPJK. Conclusions: There was no correlation between PJK and GAP or change in GAP. Greater correction of UIV-PA and larger postop T1-UIV was associated with greater PJKA change; suggesting that the greater alignment correction led to greater likelihood of failure. Postoperative orthoses had no impact on PJK.

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