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Issa TZ, Lee Y, Heard J, Henry TW, McCurdy MA, Siegel N, Zaworksi C, Dambly J, Canseco JA, Hilibrand AS, Vaccaro AR, Schroeder GD, Mangan J, Lambrechts M, Kepler CK. An evaluation of fusion status following lumbar fusion surgery utilizing multi-planar computed tomography. 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 2024:10.1007/s00586-024-08408-1. [PMID: 39095491 DOI: 10.1007/s00586-024-08408-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 03/11/2024] [Accepted: 07/09/2024] [Indexed: 08/04/2024]
Abstract
PURPOSE To report the rate of fusion in a sample of patients undergoing lumbar fusion surgery and assess interrater reliability of computed tomography (CT)-based parameters for the assessment of fusion. METHODS All adult patients who underwent lumbar fusion surgery from 2017 to 2021 were retrospectively identified. Patient demographics and surgical characteristics were collected through chart review of the electronic medical records. CT scans were reviewed independently by two attending spine surgeons and two spine fellows. Fusion was defined as evidence of bone bridging in any one of (1) posterolateral gutters, (2) facets, or (3) interbody (when applicable) on any CT views. Evidence of screw haloing was indicative of nonunion. Interrater reliability was determined using cohen's kappa. Afterwards, a consensus agreement for each component of fusion was reached between participants. RESULTS The overall fusion rate among all procedures was 63/69 (91.3%). Overall 22/25 (88.0%) TLIF, 16/19 (84.2%) PLDF, 3/3 (100%) LLIF, and 22/22 (100%) circumferential fusions experienced a successful fusion. Interrater reliability was good for interbody fusion (k = 0.734) and moderate for all other measures (k = 0.561 for posterolateral fusion; k = 0.471 for facet fusion; k = 0.458 for screw haloing). Overall, interrater reliability as to whether a patient had a fusion or nonunion was moderate (k = 0.510). CONCLUSION There was only moderate interrater reliability across most radiographic measures used in assessing lumbar fusion status. Reliability was highest when evaluating the presence of interbody fusion. The majority of fusions occurred across the facet joints.
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Affiliation(s)
- Tariq Z Issa
- Department of Orthopaedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University Hospital, Philadelphia, PA, USA.
- Department of Orthopaedic Surgery, Mount Sinai Hospital, New York, NY, USA.
| | - Yunsoo Lee
- Department of Orthopaedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University Hospital, Philadelphia, PA, USA
| | - Jeremy Heard
- Department of Orthopaedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University Hospital, Philadelphia, PA, USA
| | - Tyler W Henry
- Department of Orthopaedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University Hospital, Philadelphia, PA, USA
| | - Michael A McCurdy
- Department of Orthopaedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University Hospital, Philadelphia, PA, USA
| | - Nicholas Siegel
- Department of Orthopaedic Surgery, Johns Hopkins University, Baltimore, MD, USA
| | - Caroline Zaworksi
- Department of Orthopaedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University Hospital, Philadelphia, PA, USA
| | - Julia Dambly
- Department of Orthopaedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University Hospital, Philadelphia, PA, USA
| | - Jose A Canseco
- Department of Orthopaedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University Hospital, Philadelphia, PA, USA
| | - Alan S Hilibrand
- Department of Orthopaedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University Hospital, Philadelphia, PA, USA
| | - Alexander R Vaccaro
- Department of Orthopaedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University Hospital, Philadelphia, PA, USA
| | - Gregory D Schroeder
- Department of Orthopaedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University Hospital, Philadelphia, PA, USA
| | - John Mangan
- Department of Orthopaedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University Hospital, Philadelphia, PA, USA
| | - Mark Lambrechts
- Department of Orthopaedic Surgery, Washington University Hospital, St. Louis, MO, USA
| | - Christopher K Kepler
- Department of Orthopaedic Surgery, Rothman Orthopaedic Institute at Thomas Jefferson University Hospital, Philadelphia, PA, USA
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Boonsirikamchai W, Wilartratsami S, Ruangchainikom M, Korwutthikulrangsri E, Tongsai S, Luksanapruksa P. Pseudarthrosis risk factors in lumbar fusion: a systematic review and meta-analysis. BMC Musculoskelet Disord 2024; 25:433. [PMID: 38831392 PMCID: PMC11149252 DOI: 10.1186/s12891-024-07531-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 05/21/2024] [Indexed: 06/05/2024] Open
Abstract
This study presents a systematic literature review and meta-analysis of pseudarthrosis risk factors following lumbar fusion procedures. The odds ratio (OR) and 95% confidence interval (95% CI) were used for outcome measurements. The objective of this study was to identify the independent risk factors for pseudarthrosis after lumbar spinal fusion, which is crucial for mitigating morbidity and reoperation. Systematic searches in PubMed, Embase, and Scopus (1990-July 2021) were conducted using specific terms. The inclusion criteria included prospective and retrospective cohorts and case‒control series reporting ORs with 95% CIs from multivariate analysis. The quality assessment utilized the Newcastle-Ottawa scale. Meta-analysis, employing OR and 95% CI, assessed pseudarthrosis risk factors in lumbar fusion surgery, depicted in a forest plot. Of the 568 abstracts identified, 12 met the inclusion criteria (9 retrospective, 2006-2021). The 17 risk factors were categorized into clinical, radiographic, surgical, and bone turnover marker factors. The meta-analysis highlighted two significant clinical risk factors: age (95% CI 1.02-1.11; p = 0.005) and smoking (95% CI 1.68-5.44; p = 0.0002). The sole significant surgical risk factor was the number of fused levels (pooled OR 1.35; 95% CI 1.17-1.55; p < 0.0001). This study identified 17 risk factors for pseudarthrosis after lumbar fusion surgery, emphasizing age, smoking status, and the number of fusion levels. Prospective studies are warranted to explore additional risk factors and assess the impact of surgery and graft type.
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Affiliation(s)
- Win Boonsirikamchai
- Department of Orthopaedics Surgery, Faculty of Medicine, Siriraj Hospital, Mahidol University, Wang Lang Rd., Bangkok, 10700, Thailand
- Department of Orthopaedics, Bhumibol Adulyadej Hospital, Phahon Yothin Rd., Bangkok, 10220, Thailand
| | - Sirichai Wilartratsami
- Department of Orthopaedics Surgery, Faculty of Medicine, Siriraj Hospital, Mahidol University, Wang Lang Rd., Bangkok, 10700, Thailand
| | - Monchai Ruangchainikom
- Department of Orthopaedics Surgery, Faculty of Medicine, Siriraj Hospital, Mahidol University, Wang Lang Rd., Bangkok, 10700, Thailand
| | - Ekkapoj Korwutthikulrangsri
- Department of Orthopaedics Surgery, Faculty of Medicine, Siriraj Hospital, Mahidol University, Wang Lang Rd., Bangkok, 10700, Thailand
| | - Sasima Tongsai
- Office for Research and Development, Faculty of Medicine, Siriraj Hospital, Mahidol University, Wang Lang Rd., Bangkok, 10700, Thailand
| | - Panya Luksanapruksa
- Department of Orthopaedics Surgery, Faculty of Medicine, Siriraj Hospital, Mahidol University, Wang Lang Rd., Bangkok, 10700, Thailand.
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Ruggiero N, Soliman MAR, Kuo CC, Aguirre AO, Quiceno E, Saleh J, Yeung K, Khan A, Hess RM, Lim J, Smolar DE, Pollina J, Mullin JP. The Effect of Diabetes on Complications after Spinal Fusion: A Systematic Review and Meta-Analysis. World Neurosurg 2024; 185:e976-e994. [PMID: 38460815 DOI: 10.1016/j.wneu.2024.03.008] [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: 02/24/2024] [Accepted: 03/03/2024] [Indexed: 03/11/2024]
Abstract
OBJECTIVE Spinal fusion procedures are used to treat a wide variety of spinal pathologies. Diabetes mellitus (DM) has been shown to be a significant risk factor for several complications following these procedures in previous studies. To the authors' knowledge, this is the first systematic review and meta-analysis elucidating the relationship between DM and complications occurring after spinal fusion procedures. METHODS Systematic literature searches of PubMed and EMBASE were performed from their inception to October 1, 2022, to identify studies that directly compared postfusion complications in patients with and without DM. Studies met the prespecified inclusion criteria if they reported the following data for patients with and without DM: (1) demographics; (2) postspinal fusion complication rates; and (3) postoperative clinical outcomes. The included studies were then pooled and analyzed. RESULTS Twenty-eight studies, with a cumulative total of 18,853 patients (2695 diabetic patients), were identified that met the inclusion criteria. Analysis showed that diabetic patients had significantly higher rates of total number of postoperative complications (odds ratio [OR] = 1.33; 95% confidence interval [CI] = 1.12-1.58; P = 0.001), postoperative pulmonary complications (OR=2.01; 95%CI=1.31-3.08; P = 0.001), postoperative renal complications (OR=2.20; 95%CI=1.27-3.80; P = 0.005), surgical site infection (OR=2.65; 95%CI=2.19-3.20; P < 0.001), and prolonged hospital stay (OR=1.67; 95%CI=1.47-1.90; P < 0.001). CONCLUSIONS Patients with DM had a significantly higher risk of developing complications after spinal fusion, particularly pulmonary and renal complications, in addition to surgical site infections and had a longer length of stay. These findings are important for informed discussions of surgical risks with patients and families before surgery.
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Affiliation(s)
- Nicco Ruggiero
- Jacobs School of Medicine and Biomedical Sciences at University at Buffalo, Buffalo, New York, USA
| | - Mohamed A R Soliman
- Department of Neurosurgery, Jacobs School of Medicine and Biomedical Sciences at University at Buffalo, Buffalo, New York, USA; Department of Neurosurgery, Buffalo General Medical Center, Kaleida Health, Buffalo, New York, USA; Department of Neurosurgery, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Cathleen C Kuo
- Jacobs School of Medicine and Biomedical Sciences at University at Buffalo, Buffalo, New York, USA
| | - Alexander O Aguirre
- Jacobs School of Medicine and Biomedical Sciences at University at Buffalo, Buffalo, New York, USA
| | - Esteban Quiceno
- Department of Neurosurgery, Jacobs School of Medicine and Biomedical Sciences at University at Buffalo, Buffalo, New York, USA; Department of Neurosurgery, Buffalo General Medical Center, Kaleida Health, Buffalo, New York, USA
| | - Julian Saleh
- Jacobs School of Medicine and Biomedical Sciences at University at Buffalo, Buffalo, New York, USA
| | | | - Asham Khan
- Department of Neurosurgery, Jacobs School of Medicine and Biomedical Sciences at University at Buffalo, Buffalo, New York, USA; Department of Neurosurgery, Buffalo General Medical Center, Kaleida Health, Buffalo, New York, USA
| | - Ryan M Hess
- Department of Neurosurgery, Jacobs School of Medicine and Biomedical Sciences at University at Buffalo, Buffalo, New York, USA; Department of Neurosurgery, Buffalo General Medical Center, Kaleida Health, Buffalo, New York, USA
| | - Jaims Lim
- Department of Neurosurgery, Jacobs School of Medicine and Biomedical Sciences at University at Buffalo, Buffalo, New York, USA; Department of Neurosurgery, Buffalo General Medical Center, Kaleida Health, Buffalo, New York, USA
| | - David E Smolar
- Department of Neurosurgery, Jacobs School of Medicine and Biomedical Sciences at University at Buffalo, Buffalo, New York, USA; Department of Neurosurgery, Buffalo General Medical Center, Kaleida Health, Buffalo, New York, USA
| | - John Pollina
- Department of Neurosurgery, Jacobs School of Medicine and Biomedical Sciences at University at Buffalo, Buffalo, New York, USA; Department of Neurosurgery, Buffalo General Medical Center, Kaleida Health, Buffalo, New York, USA
| | - Jeffrey P Mullin
- Department of Neurosurgery, Jacobs School of Medicine and Biomedical Sciences at University at Buffalo, Buffalo, New York, USA; Department of Neurosurgery, Buffalo General Medical Center, Kaleida Health, Buffalo, New York, USA.
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Singh V, Oppermann M, Evaniew N, Soroceanu A, Nicholls F, Jacobs WB, Thomas K, Swamy G. Lateral Lumbar Interbody Fusion With rhBMP-2 can Achieve High Fusion Rates in Adult Spine Deformity Surgeries. Global Spine J 2024; 14:244-256. [PMID: 35586905 PMCID: PMC10676168 DOI: 10.1177/21925682221103512] [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: 11/16/2022] Open
Abstract
STUDY DESIGN An ambispective, observational study of the prospective, institutional adult spine deformity (ASD) database. OBJECTIVES The study investigates the clinical and radiographic fusion rates with lateral interbody approach and rhBMP-2 in multiple-level lumbar fusion in the ASD population. Previous studies have reported over 10% pseudoarthrosis rate with multiple segment fusions. Lateral lumbar interbody fusion (LLIF) allows multiple-level, less-invasive access to the anterior lumbar spine. We hypothesized that fusion rates with lateral approach with rhBMP-2 use are superior to the published data on lumbar fusion in ASD patients. METHODS The institutional ASD database was searched to identify eligible patients with two or more levels of LLIF (T12-L5), >4 levels of posterior instrumentations and >2 years of follow-up between the years 2010 and 2018. Antero-posterior and lateral 36-inch standing radiographs for each patient and computed tomography scans in select patients were studied to ascertain fusion status and patients were divided into two groups based on fusion status. RESULTS The study included 179 patients with a mean age of 65.3 years and 74% female patients. The median number of interbody fusions was performed at 3 (IQR 3-4) levels. The mean follow-up duration was 4.4 years (SD = 1.9). 169 patients (94.5%) had successful arthrodesis, while 10 patients (5.5%) had radiological pseudoarthrosis at one level. Of the 10 patients, 8 (4.4%) were either clinically asymptomatic or had manageable back pain. Two patients (1.1%) required revision surgery for symptomatic pseudoarthrosis. CONCLUSION This is the largest known series of ASD patients investigating the fusion rates with multiple-level LLIFs. LLIF along with rhBMP-2 can achieve high fusion success across interbody fusion levels in multi-segmental ASD surgeries.
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Affiliation(s)
- Vishwajeet Singh
- Division of Orthopedic Surgery Spine Program, Department of Surgery, University of Calgary, Calgary, Alberta, Canada
| | - Marcelo Oppermann
- Division of Orthopedic Surgery Spine Program, Department of Surgery, University of Alberta, Edmonton, Alberta, Canada
| | - Nathan Evaniew
- Division of Orthopedic Surgery Spine Program, Department of Surgery, University of Calgary, Calgary, Alberta, Canada
| | - Alex Soroceanu
- Division of Orthopedic Surgery Spine Program, Department of Surgery, University of Calgary, Calgary, Alberta, Canada
| | - Fred Nicholls
- Division of Orthopedic Surgery Spine Program, Department of Surgery, University of Calgary, Calgary, Alberta, Canada
| | - W. Bradley Jacobs
- Division of Neurosurgery Spine Program, Department of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada
| | - Ken Thomas
- Division of Orthopedic Surgery Spine Program, Department of Surgery, University of Calgary, Calgary, Alberta, Canada
| | - Ganesh Swamy
- Division of Orthopedic Surgery Spine Program, Department of Surgery, University of Calgary, Calgary, Alberta, Canada
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Buckland AJ, Huynh NV, Menezes CM, Cheng I, Kwon B, Protopsaltis T, Braly BA, Thomas JA. Lateral lumbar interbody fusion at L4-L5 has a low rate of complications in appropriately selected patients when using a standardized surgical technique. Bone Joint J 2024; 106-B:53-61. [PMID: 38164083 DOI: 10.1302/0301-620x.106b1.bjj-2023-0693.r2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Aims The aim of this study was to reassess the rate of neurological, psoas-related, and abdominal complications associated with L4-L5 lateral lumbar interbody fusion (LLIF) undertaken using a standardized preoperative assessment and surgical technique. Methods This was a multicentre retrospective study involving consecutively enrolled patients who underwent L4-L5 LLIF by seven surgeons at seven institutions in three countries over a five-year period. The demographic details of the patients and the details of the surgery, reoperations and complications, including femoral and non-femoral neuropraxia, thigh pain, weakness of hip flexion, and abdominal complications, were analyzed. Neurological and psoas-related complications attributed to LLIF or posterior instrumentation and persistent symptoms were recorded at one year postoperatively. Results A total of 517 patients were included in the study. Their mean age was 65.0 years (SD 10.3) and their mean BMI was 29.2 kg/m2 (SD 5.5). A mean of 1.2 levels (SD 0.6) were fused with LLIF, and a mean of 1.6 (SD 0.9) posterior levels were fused. Femoral neuropraxia occurred in six patients (1.2%), of which four (0.8%) were LLIF-related and two (0.4%) had persistent symptoms one year postoperatively. Non-femoral neuropraxia occurred in nine patients (1.8%), one (0.2%) was LLIF-related and five (1.0%) were persistent at one year. All LLIF-related neuropraxias resolved by one year. A total of 32 patients (6.2%) had thigh pain, 31 (6.0%) were LLIF-related and three (0.6%) were persistent at one year. Weakness of hip flexion occurred in 14 patients (2.7%), of which eight (1.6%) were LLIF-related and three (0.6%) were persistent at one year. No patients had bowel injury, three (0.6%) had an intraoperative vascular injury (not LLIF-related), and five (1.0%) had ileus. Reoperations occurred in five patients (1.0%) within 30 days, 37 (7.2%) within 90 days, and 41 (7.9%) within one year postoperatively. Conclusion LLIF involving the L4-L5 disc level has a low rate of persistent neurological, psoas-related, and abdominal complications in patients with the appropriate indications and using a standardized surgical technique.
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Affiliation(s)
- Aaron J Buckland
- Melbourne Orthopaedic Group, Melbourne, Australia
- Spine and Scoliosis Research Associates Australia, Melbourne, Australia
- Department of Orthopaedics, NYU Langone Health, New York, New York, USA
| | - Nam V Huynh
- Spine and Scoliosis Research Associates Australia, Melbourne, Australia
| | | | - Ivan Cheng
- Austin Spine Surgery, Austin, Texas, USA
| | - Brian Kwon
- Division of Spine Surgery, New England Baptist Hospital, Boston, Massachusetts, USA
| | | | | | - J A Thomas
- Atlantic Neurosurgical and Spine Specialists, Wilmington, Delaware, USA
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Lee HJ, Lee SJ, Jung JM, Lee TH, Jeong C, Lee TJ, Jang JE, Lee JW. Biomechanical Evaluation of Lateral Lumbar Interbody Fusion with Various Fixation Options for Adjacent Segment Degeneration: A Finite Element Analysis. World Neurosurg 2023; 173:e156-e167. [PMID: 36775239 DOI: 10.1016/j.wneu.2023.02.023] [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: 01/15/2023] [Accepted: 02/04/2023] [Indexed: 02/12/2023]
Abstract
OBJECTIVE Adjacent segment degeneration (ASD) is a common phenomenon after lumbar fusion. Lateral lumbar interbody fusion (LLIF) may provide an alternative treatment method for ASD. This study used finite element analysis to evaluate the biomechanical effects of LLIF with various fixation options and identify an optimal surgical strategy for ASD. METHODS A validated L1-S1 finite element model was modified for simulation. Six finite element models of the lumbar spine were created and were divided into group 1 (L4-5 posterior lumbar interbody fusion [PLIF] + L3-4 LLIF) and group 2 (L5-S1 PLIF + L4-5 LLIF). Each group consisted of 1) cage-alone, 2) cage + lateral screw fixation (LSF), and 3) cage + bilateral pedicle screw fixation (BPSF) models. The range of motion, intradiscal pressure, and facet loads of adjacent segments as well as interbody cage stress were analyzed. RESULTS The stress on the LLIF cage-superior endplate interface was highest in the cage-alone model followed by the cage + LSF model and cage + BPSF model. The increase in range of motion, intradiscal pressure, and facet loads at the adjacent segment was highest in the cage + BPSF model followed by the cage + LSF model and cage-alone model. However, the biomechanical effect on the adjacent segment seemed similar in the cage-alone and cage + LSF models. CONCLUSIONS LLIF with BPSF is recommended when performing LLIF surgery for ASD after L4-5 and L5-S1 PLIF. Considering cage subsidence and biomechanical effects on the adjacent segment, LLIF with LSF may be a suboptimal option for ASD surgery.
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Affiliation(s)
- Hyun Ji Lee
- Department of Biomedical Engineering, Inje University, Gimhae, Republic of Korea
| | - Sung-Jae Lee
- Department of Biomedical Engineering, Inje University, Gimhae, Republic of Korea
| | - Jong-Myung Jung
- Department of Neurosurgery, 9988 Joint & Spine Hospital, Seoul, Republic of Korea.
| | - Tae Hoon Lee
- Department of Orthopedic Surgery, 9988 Joint & Spine Hospital, Seoul, Republic of Korea
| | - Chandong Jeong
- Department of Orthopedic Surgery, 9988 Joint & Spine Hospital, Seoul, Republic of Korea
| | - Tae Jin Lee
- Department of Orthopedic Surgery, 9988 Joint & Spine Hospital, Seoul, Republic of Korea
| | - Ji-Eun Jang
- R&D Center, GS Medical Co., Ltd., Cheongju, Republic of Korea
| | - Jae-Won Lee
- R&D Center, GS Medical Co., Ltd., Cheongju, Republic of Korea
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Jung JM, Chung CK, Kim CH, Yang SH, Ko YS. The Modified 11-Item Frailty Index and Postoperative Outcomes in Patients Undergoing Lateral Lumbar Interbody Fusion. Spine (Phila Pa 1976) 2022; 47:396-404. [PMID: 34669672 DOI: 10.1097/brs.0000000000004260] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN Retrospective cohort study. OBJECTIVE The aim of this study was to analyze postoperative complications and recovery patterns in different modified 11-item frailty index (mFI-11) groups after lateral lumbar interbody fusion (LLIF) surgery. SUMMARY OF BACKGROUND DATA The relationship between the mFI-11 score and LLIF surgery has not been previously reported. METHODS A single-center, consecutive series of patients who underwent LLIF with at least two years of follow-up were retrospectively reviewed. Complications after LLIF surgery were recorded. Clinical outcomes, including the visual analog scale (VAS) for back/leg pain and the Oswestry Disability Index (ODI), were evaluated preoperatively and at 1 and 2 years postoperatively. The proportions of patients who achieved substantial clinical benefit (SCB) for the VAS-B, VAS-L, and ODI were also analyzed. RESULTS One hundred fifty-two patients included in the present study were grouped according to their mFI-11 score: 0 (n = 39), 0.09 (n = 69), 0.18 (n = 31), and ≥0.27 (n = 13). An mFI-11 score ≥0.27 was a significant predictor of urinary complications (adjusted odds ratio: 3.829, P = 0.013). At 2 years postoperatively, patients in all frailty categories experienced improvements in the VAS for back pain, VAS for leg pain, and ODI, without significant differences between the four groups (p = 0.182, 0.121, and 0.804, respectively). There were also no significant differences in the proportions of patients achieving SCB for back/leg pain and the ODI between the four groups (P = 0.843, 0.957, and 0.915, respectively). CONCLUSION An mFI-11 score was found to be independently associated with urologic complications in patients who underwent LLIF. Patients in all frailty categories experienced significant improvements in back pain, leg pain, and the ODI at 1 year and 2 years postoperatively. LLIF surgery may be useful for patients with high frailty index.Level of Evidence: 4.
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Affiliation(s)
- Jong-Myung Jung
- Department of Neurosurgery, Spine Center, Gachon University Gil Medical Center, Gachon University College of Medicine, Incheon, Republic of Korea
| | - Chun Kee Chung
- Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Brain and Cognitive Sciences, Seoul National University College of Natural Sciences, Seoul, Republic of Korea
| | - Chi Heon Kim
- Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Seung Heon Yang
- Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Young San Ko
- Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
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