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Kazarian GS, Lovecchio F, Merrill R, Clohisy J, Zhang B, Du J, Jordan Y, Pajak A, Knopp R, Kim D, Samuel J, Elysee J, Akosman I, Shahi P, Johnson M, Schwab FJ, Lafage V, Kim HJ. Why Didn't You Walk Yesterday? Factors Associated With Slow Early Recovery After Adult Spinal Deformity Surgery. Global Spine J 2023:21925682231197976. [PMID: 37614144 DOI: 10.1177/21925682231197976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/25/2023] Open
Abstract
STUDY DESIGN This is a retrospective case-control study. OBJECTIVES The objectives of this study are to identify (1) risk factors for delayed ambulation following adult spinal deformity (ASD) surgery and (2) complications associated with delayed ambulation. METHODS One-hundred and ninety-one patients with ASD who underwent posterior-only fusion (≥5 levels, LIV pelvis) were reviewed. Patients who ambulated with physical therapy (PT) on POD2 or later (LateAmb, n = 49) were propensity matched 1:1 to patients who ambulated on POD0-1 (NmlAmb, n = 49) based on the extent of fusion and surgical invasiveness score (ASD-S). Risk factors, as well as inpatient medical complications were compared. Logistic regressions were used to identify risk factors for late ambulation. RESULTS Of the patients who did not ambulate on POD0-1, 32% declined participation secondary to pain or dizziness/fatigue, while 68% were restricted from participation by PT/nursing due to fatigue, inability to follow commands, nausea/dizziness, pain, or hypotension. Logistic regression showed that intraoperative estimated blood loss (EBL) >2L (OR = 5.57 [1.51-20.55], P = .010) was independently associated with an increased risk of delayed ambulation, with a 1.25 times higher risk for every 250 mL increase in EBL (P = .014). Modified 5-Item Frailty Index (mFI-5) was also independently associated with delayed ambulation (OR = 2.53 [1.14-5.63], P = .023). LateAmb demonstrated a higher hospital LOS (8.4 ± 4.0 vs 6.2 ± 2.6, P < .001). The LateAmb group trended toward an increase in medical complications on POD3+ (14.3% vs 26.5%, P = .210). CONCLUSIONS EBL demonstrates a dose-response relationship with risk for delayed ambulation. Delayed ambulation increases LOS and may impact medical complications.
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Affiliation(s)
- Gregory S Kazarian
- Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY, USA
| | - Francis Lovecchio
- Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY, USA
| | - Robert Merrill
- Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY, USA
| | - John Clohisy
- Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY, USA
| | - Bo Zhang
- Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY, USA
| | - Jerry Du
- Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY, USA
| | - Yusef Jordan
- Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY, USA
| | - Anthony Pajak
- Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY, USA
| | - Rachel Knopp
- Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY, USA
| | - David Kim
- Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY, USA
| | - Justin Samuel
- Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY, USA
| | - Jonathan Elysee
- Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY, USA
| | - Izzet Akosman
- Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY, USA
| | - Pratyush Shahi
- Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY, USA
| | - Mitchell Johnson
- Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY, USA
| | - Frank J Schwab
- Department of Orthopedic Surgery, Lenox Hill Hospital, New York, NY, USA
| | - Virginie Lafage
- Department of Orthopedic Surgery, Lenox Hill Hospital, New York, NY, USA
| | - Han Jo Kim
- Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, NY, USA
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Arora A, Demb J, Cummins DD, Callahan M, Clark AJ, Theologis AA. Predictive models to assess risk of extended length of stay in adults with spinal deformity and lumbar degenerative pathology: development and internal validation. Spine J 2023; 23:457-466. [PMID: 36892060 DOI: 10.1016/j.spinee.2022.10.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 10/13/2022] [Accepted: 10/24/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND CONTEXT Postoperative recovery after adult spinal deformity (ASD) operations is arduous, fraught with complications, and often requires extended hospital stays. A need exists for a method to rapidly predict patients at risk for extended length of stay (eLOS) in the preoperative setting. PURPOSE To develop a machine learning model to preoperatively estimate the likelihood of eLOS following elective multi-level lumbar/thoracolumbar spinal instrumented fusions (≥3 segments) for ASD. STUDY DESIGN/SETTING Retrospectively from a state-level inpatient database hosted by the Health care cost and Utilization Project. PATIENT SAMPLE Of 8,866 patients of age ≥50 with ASD undergoing elective lumbar or thoracolumbar multilevel instrumented fusions. OUTCOME MEASURES The primary outcome was eLOS (>7 days). METHODS Predictive variables consisted of demographics, comorbidities, and operative information. Significant variables from univariate and multivariate analyses were used to develop a logistic regression-based predictive model that use six predictors. Model accuracy was assessed through area under the curve (AUC), sensitivity, and specificity. RESULTS Of 8,866 patients met inclusion criteria. A saturated logistic model with all significant variables from multivariate analysis was developed (AUC=0.77), followed by generation of a simplified logistic model through stepwise logistic regression (AUC=0.76). Peak AUC was reached with inclusion of six selected predictors (combined anterior and posterior approach, surgery to both lumbar and thoracic regions, ≥8 level fusion, malnutrition, congestive heart failure, and academic institution). A cutoff of 0.18 for eLOS yielded a sensitivity of 77% and specificity of 68%. CONCLUSIONS This predictive model can facilitate identification of adults at risk for eLOS following elective multilevel lumbar/thoracolumbar spinal instrumented fusions for ASD. With a fair diagnostic accuracy, the predictive calculator will ideally enable clinicians to improve preoperative planning, guide patient expectations, enable optimization of modifiable risk factors, facilitate appropriate discharge planning, stratify financial risk, and accurately identify patients who may represent high-cost outliers. Future prospective studies that validate this risk assessment tool on external datasets would be valuable.
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Affiliation(s)
- Ayush Arora
- Department of Orthopedic Surgery, University of California - San Francisco (UCSF), 500 Parnassus Ave, MUW 3rd Floor, San Francisco, CA 94143, USA
| | - Joshua Demb
- Division of Gastroenterology, Department of Medicine, University of California - San Diego, La Jolla, 9500 Gilman Drive, La Jolla, CA 92093, CA, USA
| | - Daniel D Cummins
- Department of Orthopedic Surgery, University of California - San Francisco (UCSF), 500 Parnassus Ave, MUW 3rd Floor, San Francisco, CA 94143, USA
| | - Matt Callahan
- Department of Orthopedic Surgery, University of California - San Francisco (UCSF), 500 Parnassus Ave, MUW 3rd Floor, San Francisco, CA 94143, USA
| | - Aaron J Clark
- Department of Neurological Surgery, UCSF, 400 Parnassus Ave, San Francisco, CA 94143, San Francisco, CA, USA
| | - Alekos A Theologis
- Department of Orthopedic Surgery, University of California - San Francisco (UCSF), 500 Parnassus Ave, MUW 3rd Floor, San Francisco, CA 94143, USA.
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Tucker AM, Madsen PJ, Rahman RK, Lang SS, Storm PB. Transdiscal instrumentation in single-level lumbosacral fusion for high-grade isthmic pediatric spondylolisthesis: Technical note and review of the literature. Neurochirurgie 2023; 69:101416. [PMID: 36750163 DOI: 10.1016/j.neuchi.2023.101416] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 01/23/2023] [Accepted: 01/25/2023] [Indexed: 02/07/2023]
Abstract
Pediatric spondylolisthesis is a common cause of back pain in children, typically managed conservatively with bracing and non-steroidal anti-inflammatory drugs. When posterolateral fusion is performed for refractory pain, pseudarthrosis and implant failure may occur, necessitating reoperation. To improve patient outcomes, there is a need for alternative surgical techniques to effectively manage high-grade isthmic slips. Here, the authors report the case of a child with Meyerding grade III anterolisthesis of L5 on S1 who was treated with a single-level, instrumented fusion using bilateral S1-L5 transdiscal screws, supported with L5-S1 posterolateral instrumentation and arthrodesis. Postoperatively, there was improvement in the patient's symptoms with good clinical and radiographic outcomes. The patient continues to be symptom free with radiographic evidence of hardware stability and bony fusion across the segment. The authors detail a novel surgical technique in children as well as a review of lumbosacral transdiscal screw fixation. Further evidence is required to definitively establish the safety, outcomes, and biomechanical strength of this technique.
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Affiliation(s)
- A M Tucker
- Division of Neurosurgery, Children's Hospital of Philadelphia, Philadelphia, PA, United States; Department of Neurosurgery, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, United States.
| | - P J Madsen
- Division of Neurosurgery, Children's Hospital of Philadelphia, Philadelphia, PA, United States; Department of Neurosurgery, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, United States
| | - R K Rahman
- Division of Neurosurgery, Children's Hospital of Philadelphia, Philadelphia, PA, United States; Rowan University School of Osteopathic Medicine, Stratford, NJ, United States
| | - S-S Lang
- Division of Neurosurgery, Children's Hospital of Philadelphia, Philadelphia, PA, United States; Department of Neurosurgery, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, United States
| | - P B Storm
- Division of Neurosurgery, Children's Hospital of Philadelphia, Philadelphia, PA, United States; Department of Neurosurgery, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, United States
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Luxenburg D, Bondar K, Syros A, Mohile N, Lee D, Rasoulinejad P, Saifi C, Donnally C. Clinical Outcomes of Bariatric Surgery Before Spinal Fusion: A Systematic Review. World Neurosurg 2023; 170:107-113.e1. [PMID: 36396053 DOI: 10.1016/j.wneu.2022.11.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 11/10/2022] [Accepted: 11/11/2022] [Indexed: 11/16/2022]
Abstract
INTRODUCTION Morbidly obese patients are at increased risk for intraoperative and postoperative complications following spinal fusion. Preoperative weight loss can improve clinical outcomes. The present systematic literature review is aimed to evaluate the hypothesis that bariatric surgery before spinal fusion surgery is associated with higher rates of complications and revisions. METHODS Three databases were queried for literature pertaining to bariatric surgery prior to spinal fusion. A 2-author screening process was conducted in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses. Methodologic index for non-randomized studies criteria was used to objectively assess the methodologic quality of the studies reviewed. Retrospective cohort studies in which the patients underwent bariatric surgery were included. RESULTS Four retrospective cohort studies consisting of a total of 180,090 patients were included. Length of stay was significantly shorter for the bariatric surgery (BS) group patients than the control (C) groups patients (P = 0.009). There were no significant differences in 1-year mortality rate (P = 1.0), readmission rate (P = 0.86), overall postoperative complications (P = 0.83), and postoperative infections (P = 0.97) between the BS and C groups. CONCLUSIONS There were no consistent differences in rates of postoperative complications, infections, hospital readmission, and mortality between obese patients with bariatric surgery prior to spinal fusion and control group patients. The present study does not support the hypothesis that bariatric surgery before spinal fusion contributes to a higher rate of postoperative complications in patients undergoing spinal fusion.
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Affiliation(s)
- Dylan Luxenburg
- Department of Orthopaedic Surgery and Department of Education, University of Miami, Miami, Florida, USA
| | - Kevin Bondar
- Department of Orthopedic Surgery and Sports Medicine, Houston Methodist Hospital, Houston, Texas, USA.
| | - Alina Syros
- Department of Orthopaedic Surgery and Department of Education, University of Miami, Miami, Florida, USA
| | - Neil Mohile
- Department of Orthopaedic Surgery and Department of Education, University of Miami, Miami, Florida, USA
| | - Danny Lee
- Department of Orthopaedic Surgery and Department of Education, University of Miami, Miami, Florida, USA
| | - Parham Rasoulinejad
- London Health Sciences Centre, London, Ontario, Canada; Schulich School of Medicine, Western University, London, Ontario, Canada
| | - Comron Saifi
- Department of Orthopedic Surgery and Sports Medicine, Houston Methodist Hospital, Houston, Texas, USA
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Improvements in Outcomes and Cost After Adult Spinal Deformity Corrective Surgery Between 2008 and 2019. Spine (Phila Pa 1976) 2023; 48:189-195. [PMID: 36191021 DOI: 10.1097/brs.0000000000004474] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Accepted: 06/09/2022] [Indexed: 11/07/2022]
Abstract
STUDY DESIGN A retrospective cohort study. OBJECTIVE To assess whether patient outcomes and cost-effectiveness of adult spinal deformity (ASD) surgery have improved over the past decade. BACKGROUND Surgery for ASD is an effective intervention, but one that is also associated with large initial healthcare expenditures. Changes in the cost profile for ASD surgery over the last decade has not been evaluated previously. MATERIALS AND METHODS ASD patients who received surgery between 2008 and 2019 were included. Analysis of covariance was used to establish estimated marginal means for outcome measures [complication rates, reoperations, health-related quality of life, total cost, utility gained, quality adjusted life years (QALYs), cost-efficiency (cost per QALY)] by year of initial surgery. Cost was calculated using the PearlDiver database and represented national averages of Medicare reimbursement for services within a 30-day window including length of stay and death differentiated by complication/comorbidity, revision, and surgical approach. Internal cost data was based on individual patient diagnosis-related group codes, limiting revisions to those within two years (2Y) of the initial surgery. Cost per QALY over the course of 2008-2019 were then calculated. RESULTS There were 1236 patients included. There was an overall decrease in rates of any complication (0.78 vs . 0.61), any reoperation (0.25 vs . 0.10), and minor complication (0.54 vs . 0.37) between 2009 and 2018 (all P <0.05). National average 2Y cost decreased at an annual rate of $3194 ( R2 =0.6602), 2Y utility gained increased at an annual rate of 0.0041 ( R2 =0.57), 2Y QALYs gained increased annually by 0.008 ( R2 =0.57), and 2Y cost per QALY decreased per year by $39,953 ( R2 =0.6778). CONCLUSION Between 2008 and 2019, rates of complications have decreased concurrently with improvements in patient reported outcomes, resulting in improved cost effectiveness according to national Medicare average and individual patient cost data. The value of ASD surgery has improved substantially over the course of the last decade.
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Timing of inpatient medical complications after adult spinal deformity surgery: early ambulation matters. Spine J 2023; 23:219-226. [PMID: 36152773 DOI: 10.1016/j.spinee.2022.09.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 09/07/2022] [Accepted: 09/15/2022] [Indexed: 02/03/2023]
Abstract
BACKGROUND The substantial risk for medical complication after adult spinal deformity (ASD) surgery is well known. However, the timing of medical complications during the inpatient stay have not been previously described. Accurate anticipation of complications and adverse events may improve patient counseling and postoperative management. PURPOSE (1) Describe the rate of medical complication and adverse events by postoperative day after ASD surgery and (2) determine whether early ambulation is protective for complications. STUDY DESIGN/SETTING Single institution retrospective cohort study. PATIENT SAMPLE Two hundred thirty-five patients with ASD who underwent posterior-only fusion of the lumbar spine (≥5 levels to the pelvis) between 2013 and 2020. OUTCOME MEASURES Medical complications, categorized per the International Spine Study Group-AO system (cardiopulmonary [CP], gastrointestinal [GI], central nervous system [CNS], infectious [nonsurgical site], and renal) and adverse events (postoperative blood transfusion, urinary retention, and electrolyte abnormalities). METHODS Patients were identified from an institutional ASD database. Outcome measures were classified by the first postoperative day the event was recognized. Demographics, year of surgery, surgical factors, radiographic parameters, surgical invasiveness (ASD-S Index), frailty (Modified Frailty Index-5 [mFI-5]), Charlson Comorbidity Index (CCI), obstructive sleep apnea (OSA), smoking, preoperative opioid use, depression, and post-operative day of ambulation were assessed as risk factors for inpatient medical complications. RESULTS After exclusions of patients with incomplete medical chart data, 191 patients were available for analysis, mean age 66±10 y, BMI 28±5 kg/m2, PI-LL 24±20°, T1PA 28±13°. Inpatient medical complications occurred in 55 (28.8%) patients; adverse events occurred in 137 (71.7%). Length of stay was higher in patients with medical complications (mean 8.5±3.8 vs. 5.8±2.3 days, p<.001). However, for patients who had an adverse event, but no medical complication, LOS was comparable (p>.05). Most medical complications occurred by POD3 (58% of all complications). Risk (defined as the proportion of patients with that complication out of all inpatients that day) of CNS, CP, and GI complication peaked early in the postoperative course (CNS on POD1 [2.1% risk]; GI on POD2 [3.7%]; CP on POD3 [2.7%]). Risk for infectious and renal complications (infectious POD8 [2.7%]; renal POD7 [0.9%]) peaked later (Figure 1). On univariate analysis, patients with medical complications had higher rates of OSA (9.1% vs. 2.2%, p=.045), ASD-S (45.9 vs. 40.8, p=.04), max coronal cobb (46.9 vs. 36.7°, p=.003), ASA class (2.5 vs. 2.3, p=.01), and POD of ambulation (1.9 vs. 1.3, p=.01). On multivariate logistic regression (c-statistic 0.78), larger coronal cobb and later POD of ambulation were independent risk factors for complications (OR 1.04, 95% CI 1.01-1.07 and OR 2.3, 95% CI 1.2-4.7, respectively). CONCLUSIONS Our data may inform peri-operative management and patient expectations for hospitalization after ASD surgery. Early ambulation may reduce the risk of complications.
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Yuan Y, Wang SK, Chai XY, Wang P, Li XY, Kong C, Lu SB. The implementation of enhanced recovery after surgery pathway in patients undergoing posterior thoracolumbar fusion for degenerative spinal deformity. BMC Musculoskelet Disord 2023; 24:29. [PMID: 36639811 PMCID: PMC9837952 DOI: 10.1186/s12891-023-06146-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 01/09/2023] [Indexed: 01/15/2023] Open
Abstract
PURPOSE The prevalence of degenerative spinal deformity (DSD) and the increased cost of correction surgery impose substantial burdens on the health care and insurance system. The aim of our study was to investigate the effects of the implementation of Enhanced Recovery After Surgery (ERAS) protocol on postoperative outcomes after complex spinal surgery. METHODS A retrospective analysis of prospectively established database of DSD was performed. The consecutive patients who underwent open correction surgery for degenerative spinal deformity between August 2016 and February 2022 were reviewed. We extracted demographic data, preoperative radiographic parameters, and surgery-related variables. The ERAS patients were 1:1 propensity-score matched to a historical cohort by the same surgical team based on age, gender, BMI, and number of levels fused. We then compared the length of hospital stay (LOS), physiological functional recovery, and the rates of complications and readmissions within 90 days after surgery between the groups. RESULTS There were 108 patients included, 54 patients in the ERAS cohort, and 54 patients matched control patients in the historical cohort. The historical and ERAS cohorts were not significantly different regarding demographic characteristics, comorbidities, preoperative parameters, operative time, and reoperation rate (P > 0.05). Patients in the ERAS group had significantly shorter postoperative LOS (12.0 days vs. 15.1 days, P = 0.001), average days of drain and urinary catheters placement (3.5 days vs. 4.4 days and 1.9 days vs 4.8 days, respectively), and lower 90-day readmission rate (1.8% vs. 12.9%, P = 0.027). The first day of assisted-walking and bowel movement occurred on average 1.9 days (2.5 days vs. 4.4 days, P = 0.001) and 1.7 days (1.9 days vs. 3.6 days, P = 0.001) earlier respectively in the ERAS group. Moreover, the rate of postoperative urinary retention (3.7% vs. 16.7%, P = 0.026) and surgical site infection (0% vs. 7.4%, P = 0.046) were significantly lower with ERAS protocol applied. CONCLUSIONS Our study confirmed that the ERAS protocol was safe and essential for patients undergoing thoracolumbar deformity surgery for DSD. The ERAS protocol was associated with a shorter postoperative LOS, a lower rate of 90-day readmission, less rehabilitation discharge, and less postoperative complications.
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Affiliation(s)
- Yi Yuan
- Department of Orthopedics, No.6 Hospital, Beijing, 100007 China
| | - Shuai-Kang Wang
- grid.413259.80000 0004 0632 3337Department of Orthopedics, Xuanwu Hospital, Capital Medical University, No.45 Changchun Street, Xicheng District, Beijing, 10053 China ,National Clinical Research Center for Geriatric Diseases, Beijing, 10053 China
| | - Xin-Yi Chai
- grid.24696.3f0000 0004 0369 153XCapital Medical University, Beijing, 10053 China
| | - Peng Wang
- grid.413259.80000 0004 0632 3337Department of Orthopedics, Xuanwu Hospital, Capital Medical University, No.45 Changchun Street, Xicheng District, Beijing, 10053 China ,National Clinical Research Center for Geriatric Diseases, Beijing, 10053 China
| | - Xiang-Yu Li
- grid.413259.80000 0004 0632 3337Department of Orthopedics, Xuanwu Hospital, Capital Medical University, No.45 Changchun Street, Xicheng District, Beijing, 10053 China ,National Clinical Research Center for Geriatric Diseases, Beijing, 10053 China
| | - Chao Kong
- grid.413259.80000 0004 0632 3337Department of Orthopedics, Xuanwu Hospital, Capital Medical University, No.45 Changchun Street, Xicheng District, Beijing, 10053 China ,National Clinical Research Center for Geriatric Diseases, Beijing, 10053 China
| | - Shi-Bao Lu
- grid.413259.80000 0004 0632 3337Department of Orthopedics, Xuanwu Hospital, Capital Medical University, No.45 Changchun Street, Xicheng District, Beijing, 10053 China ,National Clinical Research Center for Geriatric Diseases, Beijing, 10053 China
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Arora A, Lituiev D, Jain D, Hadley D, Butte AJ, Berven S, Peterson TA. Predictive Models for Length of Stay and Discharge Disposition in Elective Spine Surgery: Development, Validation, and Comparison to the ACS NSQIP Risk Calculator. Spine (Phila Pa 1976) 2023; 48:E1-E13. [PMID: 36398784 PMCID: PMC9772082 DOI: 10.1097/brs.0000000000004490] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 09/12/2022] [Indexed: 11/19/2022]
Abstract
STUDY DESIGN A retrospective study at a single academic institution. OBJECTIVE The purpose of this study is to utilize machine learning to predict hospital length of stay (LOS) and discharge disposition following adult elective spine surgery, and to compare performance metrics of machine learning models to the American College of Surgeon's National Surgical Quality Improvement Program's (ACS NSQIP) prediction calculator. SUMMARY OF BACKGROUND DATA A total of 3678 adult patients undergoing elective spine surgery between 2014 and 2019, acquired from the electronic health record. METHODS Patients were divided into three stratified cohorts: cervical degenerative, lumbar degenerative, and adult spinal deformity groups. Predictive variables included demographics, body mass index, surgical region, surgical invasiveness, surgical approach, and comorbidities. Regression, classification trees, and least absolute shrinkage and selection operator (LASSO) were used to build predictive models. Validation of the models was conducted on 16% of patients (N=587), using area under the receiver operator curve (AUROC), sensitivity, specificity, and correlation. Patient data were manually entered into the ACS NSQIP online risk calculator to compare performance. Outcome variables were discharge disposition (home vs. rehabilitation) and LOS (days). RESULTS Of 3678 patients analyzed, 51.4% were male (n=1890) and 48.6% were female (n=1788). The average LOS was 3.66 days. In all, 78% were discharged home and 22% discharged to rehabilitation. Compared with NSQIP (Pearson R2 =0.16), the predictions of poisson regression ( R2 =0.29) and LASSO ( R2 =0.29) models were significantly more correlated with observed LOS ( P =0.025 and 0.004, respectively). Of the models generated to predict discharge location, logistic regression yielded an AUROC of 0.79, which was statistically equivalent to the AUROC of 0.75 for NSQIP ( P =0.135). CONCLUSION The predictive models developed in this study can enable accurate preoperative estimation of LOS and risk of rehabilitation discharge for adult patients undergoing elective spine surgery. The demonstrated models exhibited better performance than NSQIP for prediction of LOS and equivalent performance to NSQIP for prediction of discharge location.
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Affiliation(s)
- Ayush Arora
- Department of Orthopaedic Surgery, University of California, San Francisco, San Francisco, CA, USA
| | - Dmytro Lituiev
- Bakar Computational Health Sciences Institute, University of California, San Francisco, San Francisco, CA, USA
| | - Deeptee Jain
- Department of Orthopaedic Surgery, Washington University in St. Louis, St. Louis, MO
| | - Dexter Hadley
- Department of Pathology, University of Central Florida, FL, USA
| | - Atul J. Butte
- Bakar Computational Health Sciences Institute, University of California, San Francisco, San Francisco, CA, USA
- Department of Pediatrics, University of California, San Francisco, San Francisco, CA, USA
- Center for Data-driven Insights and Innovation, University of California Health, Oakland, USA
| | - Sigurd Berven
- Department of Orthopaedic Surgery, University of California, San Francisco, San Francisco, CA, USA
| | - Thomas A. Peterson
- Department of Orthopaedic Surgery, University of California, San Francisco, San Francisco, CA, USA
- Bakar Computational Health Sciences Institute, University of California, San Francisco, San Francisco, CA, USA
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Schmerler J, Mo KC, Olson J, Kurian SJ, Skolasky RL, Kebaish KM, Neuman BJ. Preoperative characteristics are associated with increased likelihood of low early postoperative mobility after adult spinal deformity surgery. Spine J 2022; 23:746-753. [PMID: 36509380 DOI: 10.1016/j.spinee.2022.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 11/12/2022] [Accepted: 12/05/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND CONTEXT Low early postoperative mobility (LEPOM) has been shown to be associated with increased length of hospital stay, complication rates, and likelihood of nonhome discharge. However, few studies have examined preoperative characteristics associated with LEPOM in adult spinal deformity (ASD) patients. PURPOSE To investigate which preoperative patient characteristics may be associated with LEPOM after ASD surgery. DESIGN Retrospective review. PATIENT SAMPLE Included were 86 ASD patients with fusion of ≥5 levels for whom immediate-postoperative AM-PAC Basic Mobility Inpatient Short Form (6-Clicks) scores had been obtained. OUTCOME MEASURES The primary outcome of this study was the likelihood of LEPOM, defined as an AM-PAC score ≤15, which is associated with inability to stand for more than 1 minute. METHODS Significant cutoffs for preoperative characteristics associated with LEPOM were determined via threshold linear regression. Multivariable logistic regression was used to assess the impact of preoperative characteristics on the likelihood of LEPOM. RESULTS LEPOM was recorded in 38 patients (44.2%). Threshold regression identified the following cutoffs to be associated with LEPOM: preoperative Patient Reported Outcomes Measurement Information System (PROMIS) scores of ≥68 for Pain, <28.3 for Physical Function, and ≥63.4 for Anxiety; preoperative Oswestry disability index (ODI) score of ≥60; and body mass index (BMI) of ≥35.2. On multivariate analysis, preoperative PROMIS scores of ≥68 for Pain (odds ratio [OR] 5.3, confidence interval [CI] 1.2-22.8, p=.03), <28.3 for Physical Function (OR 10.1, CI 1.8-58.2, p=.01), and ≥63.4 for Anxiety (OR 4.7, CI 1.1-20.8, p=.04); preoperative ODI score ≥60 (OR 38.8, CI 4.0-373.6, p=.002); BMI ≥35.2 (OR 14.2, CI 1.3-160.0, p=.03), and male sex (OR 5.4, CI 1.2-23.7, p=.03) were associated with increased odds of LEPOM. CONCLUSIONS Preoperative PROMIS Pain, Physical Function, and Anxiety scores; ODI score; BMI; and male sex were associated with LEPOM. Several of these characteristics are modifiable risk factors and thus may be candidates for optimization before surgery. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Jessica Schmerler
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Kevin C Mo
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Jarod Olson
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Shyam J Kurian
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Richard L Skolasky
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Khaled M Kebaish
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Brian J Neuman
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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10
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Charlotte D, Mathew NH, Tamir A, Michael B, Raphaële CM, Nicolas D, Marcel D, Charles F, Brian KK, Scott P, John S. Variations in LOS and its main determinants overtime at an academic spinal care center from 2006-2019. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2022; 31:702-709. [PMID: 35013829 PMCID: PMC8747860 DOI: 10.1007/s00586-021-07086-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 11/16/2021] [Accepted: 12/03/2021] [Indexed: 01/14/2023]
Abstract
Objectives Efforts to safely reduce hospital LOS while maintaining quality outcomes and patient satisfaction are paramount. The primary goal of this study was to assess trends in LOS at a high-volume quaternary care spine center. Secondary goals were to assess trends in factors most associated with prolonged LOS. Methods This is a prospective study of all consecutive patients admitted from January 2006 to December 2019. Data included demographics, diagnostic category (degenerative, oncology, deformity, trauma, other), LOS (mean, median, interquartile range, standard deviation, defined as days from admission to discharge), and in-hospital adverse events. Results A total of 13,493 patients were included. Overall LOS has not changed over time with an overall median of 6.3 days (p = 0.451). Median LOS significantly increased for patients treated for degenerative pathology from 2.2 days in 2006 to 3.2 days in 2019 (p = 0.019). LOS has not changed for patients treated for deformity (overall median 6.8 days, p = 0.411), oncology (overall median 11.0 days, p = 0.051), or trauma (overall median 11.8 days, p = 0.582). Emergency admissions increased 3.2%/year for degenerative pathologies (p = < 0.001). Mean age has increased from 48.4 years in 2006 to 58.1 years in 2019 (p = < 0.001). This trend was observed in the deformity, degenerative and trauma group, not for patients treated for oncological disease. More adverse events were significantly associated with increasing age. Conclusion This is the first North American study to comprehensively analyze trends in LOS for spinal surgery overtime in an academic center. Overall, LOS has not changed from 2006–2019. Various factors that influence LOS appear to have balanced each other. It may also be explained by the changing epidemiology of both elective and emergency surgeries. These findings provide opportunities for intervention and improvement, targeted at the geriatric population, to reduce length of hospitalization.
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Affiliation(s)
- Dandurand Charlotte
- Combined Neurosurgical and Orthopedic Spine Program, Blusson Spinal Cord Center, University of British Columbia, 6th Floor, 818 West 10th Avenue, Vancouver, BC, V5Z 1M9, Canada.
| | - N Hindi Mathew
- Combined Neurosurgical and Orthopedic Spine Program, Blusson Spinal Cord Center, University of British Columbia, 6th Floor, 818 West 10th Avenue, Vancouver, BC, V5Z 1M9, Canada
| | - Ailon Tamir
- Combined Neurosurgical and Orthopedic Spine Program, Blusson Spinal Cord Center, University of British Columbia, 6th Floor, 818 West 10th Avenue, Vancouver, BC, V5Z 1M9, Canada
| | - Boyd Michael
- Combined Neurosurgical and Orthopedic Spine Program, Blusson Spinal Cord Center, University of British Columbia, 6th Floor, 818 West 10th Avenue, Vancouver, BC, V5Z 1M9, Canada
| | - Charest-Morin Raphaële
- Combined Neurosurgical and Orthopedic Spine Program, Blusson Spinal Cord Center, University of British Columbia, 6th Floor, 818 West 10th Avenue, Vancouver, BC, V5Z 1M9, Canada
| | - Dea Nicolas
- Combined Neurosurgical and Orthopedic Spine Program, Blusson Spinal Cord Center, University of British Columbia, 6th Floor, 818 West 10th Avenue, Vancouver, BC, V5Z 1M9, Canada
| | - Dvorak Marcel
- Combined Neurosurgical and Orthopedic Spine Program, Blusson Spinal Cord Center, University of British Columbia, 6th Floor, 818 West 10th Avenue, Vancouver, BC, V5Z 1M9, Canada
| | - Fisher Charles
- Combined Neurosurgical and Orthopedic Spine Program, Blusson Spinal Cord Center, University of British Columbia, 6th Floor, 818 West 10th Avenue, Vancouver, BC, V5Z 1M9, Canada
| | - K Kwon Brian
- Combined Neurosurgical and Orthopedic Spine Program, Blusson Spinal Cord Center, University of British Columbia, 6th Floor, 818 West 10th Avenue, Vancouver, BC, V5Z 1M9, Canada
| | - Paquette Scott
- Combined Neurosurgical and Orthopedic Spine Program, Blusson Spinal Cord Center, University of British Columbia, 6th Floor, 818 West 10th Avenue, Vancouver, BC, V5Z 1M9, Canada
| | - Street John
- Combined Neurosurgical and Orthopedic Spine Program, Blusson Spinal Cord Center, University of British Columbia, 6th Floor, 818 West 10th Avenue, Vancouver, BC, V5Z 1M9, Canada.
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11
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Wang KY, McNeely EL, Dhanjani SA, Raad M, Puvanesarajah V, Neuman BJ, Cohen D, Khanna AJ, Kebaish F, Hassanzadeh H, Kebaish KM. COVID-19 Significantly Impacted Hospital Length of Stay and Discharge Patterns for Adult Spinal Deformity Patients. Spine (Phila Pa 1976) 2021; 46:1551-1556. [PMID: 34431833 PMCID: PMC8552912 DOI: 10.1097/brs.0000000000004204] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 07/03/2021] [Accepted: 07/21/2021] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN Retrospective review. OBJECTIVE The primary aim was to compare length of stay (LOS) and discharge disposition of adult spinal deformity (ASD) patients undergoing surgery before and during the pandemic. Secondary aims were to compare the rates of 30-day complications, reoperations, readmissions, and unplanned emergency department (ED) visits. SUMMARY OF BACKGROUND DATA ASD patients often require extended LOS and non-routine discharge. Given resource limitations during the Coronavirus Disease 2019 (COVID-19) pandemic and caution regarding hospital stays, surgeons modified standard postoperative protocols to minimize patient exposure. METHODS We identified all patients who underwent elective thoracolumbar ASD surgery with more than or equal to five levels fusion at a tertiary care center during two distinct time intervals: July to December 2019 (Pre-COVID, N = 60) and July to December 2020 (During-COVID, N = 57). Outcome measures included LOS and discharge disposition (home vs. non-home), as well as 30-day major complications, reoperations, readmissions, and ED visits. Regression analyses controlled for demographic and surgical factors. RESULTS Patients who underwent ASD surgery during the pandemic were younger (61 vs. 67 yrs) and had longer fusion constructs (nine vs. eight levels) compared with before the pandemic (P < 0.05 for both). On bivariate analysis, patients undergoing surgery during the pandemic had shorter LOS (6 vs. 9 days) and were more likely to be discharged home (70% vs. 28%) (P < 0.05 for both). After controlling for age and levels fused on multivariable regression, patients who had surgery during the pandemic had shorter LOS (IRR = 0.83, P = 0.015) and greater odds of home discharge (odds ratios [OR] = 7.2, P < 0.001). Notably, there were no differences in major complications, reoperations, readmissions, or ED visits between the two groups. CONCLUSION During the COVID-19 pandemic, LOS for patients undergoing thoracolumbar ASD surgery decreased, and more patients were discharged home without adversely affecting complication or readmission rates. Lessons learned during the pandemic may help improve resource utilization without negatively influencing short-term outcomes.Level of Evidence: 3.
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Affiliation(s)
- Kevin Y Wang
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD
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12
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Kim HJ, Steinhaus M, Punyala A, Shah S, Elysee JC, Lafage R, Riviera T, Mendez G, Ojadi A, Tuohy S, Qureshi S, Urban M, Craig C, Lafage V, Lovecchio F. Enhanced recovery pathway in adult patients undergoing thoracolumbar deformity surgery. Spine J 2021; 21:753-764. [PMID: 33434650 DOI: 10.1016/j.spinee.2021.01.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 12/18/2020] [Accepted: 01/04/2021] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT Enhanced recovery (ERAS) pathways can help hospitals maximize the incentives of bundled payment models while maintaining high-quality patient care. A key component of an enhanced recovery pathway is the ability to predictably reduce inpatient length of stay, as this is a critical component of the cost equation. PURPOSE To determine the efficacy of an enhanced recovery pathway on reducing length of stay after thoracolumbar adult deformity surgery. STUDY DESIGN Single surgeon retrospective review of prospectively-collected data. PATIENT SAMPLE Forty adult deformity patients who underwent ≥5 levels of fusion to the pelvis (two to L5) with a single surgeon before and after implementation of an ERAS pathway. METHODS The pathway involved participation by anesthesiology, hospital medicine, and physical therapy, and was designed to achieve goals previously associated with decreased LOS (eg, EBL<1200 mL, procedure time <4.5 hours, avoidance of ICU postoperatively, and mobilization POD0-1). Patients were propensity-score matched 1:1 to a historical cohort (enhanced recovery [ER] and historical [H] cohorts), based on demographics, medical comorbidities, radiographic alignment parameters, and surgical factors. Outcomes were compared to determine the effect of the enhanced recovery pathway. Primary outcomes included LOS and 90-day complications and readmissions. RESULTS After matching, gender, BMI, ASA class, preoperative opioid dependence, day of surgery, sagittal alignment parameters, rate of revision surgery, three-column osteotomies, and interbody fusions were comparable between the cohorts (p>.05). In the ER cohort, there was reduced EBL (920±640 vs. 1437±555, p=.004) and no ER patient went to the ICU immediately following surgery, compared with 30% of H patients (p=.022). The ER cohort also had a greater number of patients ambulating by POD1 compared to the H cohort (100% vs. 55%, p=.010). ER patients had a shorter LOS (4.5±1.3 vs. 7.3±4.4 days, p=.010). A 90-day readmission and complications were comparable between the cohorts (p>.05). CONCLUSIONS The creation of an ERAS pathway for patients undergoing thoracolumbar adult deformity surgery reduced length of stay without negatively affecting short-term morbidity and complications. Given the specificity of this pathway to a single surgeon and hospital, the resources and staffing changes that were instrumental in creating the pathway may not be generalizable to other centers.
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Affiliation(s)
- Han Jo Kim
- Hospital for Special Surgery, Spine Service, 535 East 70th St., New York, NY 10021, USA.
| | - Michael Steinhaus
- Hospital for Special Surgery, Spine Service, 535 East 70th St., New York, NY 10021, USA
| | - Ananth Punyala
- Hospital for Special Surgery, Spine Service, 535 East 70th St., New York, NY 10021, USA
| | - Sachin Shah
- Hospital for Special Surgery, Spine Service, 535 East 70th St., New York, NY 10021, USA
| | | | - Renaud Lafage
- Hospital for Special Surgery, Spine Service, 535 East 70th St., New York, NY 10021, USA
| | - Tom Riviera
- Hospital for Special Surgery, Department of Nursing, 535 East 70th St., New York, NY 10021, USA
| | - Guillermo Mendez
- Hospital for Special Surgery, Department of Nursing, 535 East 70th St., New York, NY 10021, USA
| | - Ajiri Ojadi
- Hospital for Special Surgery, Department of Nursing, 535 East 70th St., New York, NY 10021, USA
| | - Sharlynn Tuohy
- Hospital for Special Surgery, Department of Physical Therapy, 535 East 70th St., New York, NY 10021, USA
| | - Sheeraz Qureshi
- Hospital for Special Surgery, Spine Service, 535 East 70th St., New York, NY 10021, USA
| | - Michael Urban
- Hospital for Special Surgery, Department of Anesthesiology, 535 East 70th St., New York, NY 10021, USA
| | - Chad Craig
- Hospital for Special Surgery, Spine Service, 535 East 70th St., New York, NY 10021, USA
| | - Virginie Lafage
- Hospital for Special Surgery, Spine Service, 535 East 70th St., New York, NY 10021, USA
| | - Francis Lovecchio
- Hospital for Special Surgery, Spine Service, 535 East 70th St., New York, NY 10021, USA
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