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Yoganandan N, Choi H, Purushothaman Y, Vedantam A, Harinathan B, Banerjee A. Comparison of Load-Sharing Responses Between Graded Posterior Cervical Foraminotomy and Conventional Fusion Using Finite Element Modeling. JOURNAL OF ENGINEERING AND SCIENCE IN MEDICAL DIAGNOSTICS AND THERAPY 2024; 7:021006. [PMID: 37860789 PMCID: PMC10583278 DOI: 10.1115/1.4063465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 08/23/2023] [Indexed: 10/21/2023]
Abstract
Following the diagnosis of unilateral cervical radiculopathy and need for surgical intervention, anterior cervical diskectomy and fusion (conventional fusion) and posterior cervical foraminotomy are common options. Although patient outcomes may be similar between the two procedures, their biomechanical effects have not been fully compared using a head-to-head approach, particularly, in relation to the amount of facet resection and internal load-sharing between spinal segments and components. The objective of this investigation was to compare load-sharing between conventional fusion and graded foraminotomy facet resections under physiological loading. A validated finite element model of the cervical spinal column was used in the study. The intact spine was modified to simulate the two procedures at the C5-C6 spinal segment. Flexion, extension, and lateral bending loads were applied to the intact, graded foraminotomy, and conventional fusion spines. Load-sharing was determined using range of motion data at the C5-C6 and immediate adjacent segments, facet loads at the three segments, and disk pressures at the adjacent segments. Results were normalized with respect to the intact spine to compare surgical options. Conventional fusion leads to increased motion, pressure, and facet loads at adjacent segments. Foraminotomy leads to increased motion and anterior loading at the index level, and motions decrease at adjacent levels. In extension, the left facet load decreases after foraminotomy. Recognizing that foraminotomy is a motion preserving alternative to conventional fusion, this study highlights various intrinsic biomechanical factors and potential instability issues with more than one-half facet resection.
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Affiliation(s)
| | - Hoon Choi
- Cleveland Clinic Florida, Weston, FL 33331
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Ng MK, Kobryn A, Baidya J, Nian P, Emara AK, Ahn NU, Houten JK, Saleh A, Razi AE. Multi-Level Posterior Cervical Foraminotomy Associated With Increased Post-operative Infection Rates and Overall Re-Operation Relative to Anterior Cervical Discectomy With Fusion or Cervical Disc Arthroplasty. Global Spine J 2024; 14:869-877. [PMID: 36052872 PMCID: PMC11192135 DOI: 10.1177/21925682221124530] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
STUDY DESIGN Retrospective Cohort Study. OBJECTIVE Cervical radiculopathy meeting operative criteria has traditionally been managed using anterior cervical discectomy and fusion (ACDF). However, cervical disc arthroplasty (CDA) and posterior cervical foraminotomy (PCF) are also reasonable options. This study aimed to assess differences in postoperative outcomes among patients undergoing multi-level ACDF, CDA, or PCF comparing medical/surgical complications and healthcare utilization parameters. METHODS Patients who underwent multi-level ACDF, CDA, or PCF between 2012 and 2019 were identified from the American College of Surgeons National Surgical Quality Improvement Project (ACS-NSQIP) database. Patients were stratified based on procedure type and propensity score matched to resolve baseline differences. ANOVA was performed to identify differences in medical complications, surgical complications, and healthcare utilization metrics. RESULTS A total of 31 344 patients who underwent an eligible procedure were identified (ACDF: n = 28 089, CDA: n = 1748, PCF: n = 1507), and 684 patients remained in each group following propensity score matching. Patients undergoing multi-level PCF were found to experience longer lengths of hospital stay (PCF: 1.67 ± 1.61 days, ACDF: 1.50 ± 1.32 days, CDA: 1.27 ± 1.05 days, P < .001), higher rates of reoperation (PCF: 3.2%, ACDF: 1.0%, CDA: .4%, P = .020), superficial infection (PCF: 1.3%, ACDF: .3%, CDA: .1%, P = .008) and deep infection (PCF: 1.2%, ACDF: 0%, CDA: 0%, P < .001). There were no outcome differences between multi-level ACDF and CDA. CONCLUSIONS Patients undergoing multi-level PCF were at increased risk for longer hospital stay, re-operation, and infection relative to those undergoing ACDF and CDA. Future research should aim to uncover the precise mechanisms underlying these complications, as well as analyze long term outcomes. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Mitchell K. Ng
- Department of Orthopaedic Surgery, Maimonides Medical Center, Brooklyn, NY, USA
| | - Andriy Kobryn
- Department of Orthopaedic Surgery, SUNY Downstate College of Medicine, Brooklyn, NY, USA
| | - Joydeep Baidya
- Department of Orthopaedic Surgery, SUNY Downstate College of Medicine, Brooklyn, NY, USA
| | - Patrick Nian
- Department of Orthopaedic Surgery, SUNY Downstate College of Medicine, Brooklyn, NY, USA
| | - Ahmed K. Emara
- Department of Orthopaedic Surgery, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Nicholas U. Ahn
- Department of Orthopaedic Surgery, University Hospitals of Cleveland, Cleveland, OH, USA
| | - John K. Houten
- Department of Orthopaedic Surgery, Maimonides Medical Center, Brooklyn, NY, USA
| | - Ahmed Saleh
- Department of Orthopaedic Surgery, Maimonides Medical Center, Brooklyn, NY, USA
| | - Afshin E. Razi
- Department of Orthopaedic Surgery, Maimonides Medical Center, Brooklyn, NY, USA
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Latka K, Kolodziej W, Domisiewicz K, Pawus D, Olbrycht T, Niedzwiecki M, Zaczynski A, Latka D. Outpatient Spine Procedures in Poland: Clinical Outcomes, Safety, Complications, and Technical Insights into an Ambulatory Spine Surgery Center. Healthcare (Basel) 2023; 11:2944. [PMID: 37998436 PMCID: PMC10671563 DOI: 10.3390/healthcare11222944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Revised: 10/29/2023] [Accepted: 11/09/2023] [Indexed: 11/25/2023] Open
Abstract
PURPOSE This study evaluated the safety and efficacy of spine procedures performed in an ambulatory spine surgery unit in Poland. PATIENTS AND METHODS We conducted a retrospective analysis of 318 patients who underwent ambulatory spine surgery between 2018 and 2021, with procedures including microdiscectomy (MLD), anterior cervical discectomy and fusion (ACDF), endoscopic interbody fusion (endoLIF), posterior endoscopic cervical discectomy (PECD), interlaminar endoscopic lumbar discectomy IELD, and transforaminal endoscopic lumbar discectomy (TELD). Patient data were analyzed for pre-operative and post-operative visual analog scale (VAS) scores. RESULTS The findings indicated that outpatient techniques were safe and effective, with a 2.83% complication rate. All procedures significantly improved VAS scores under short-term observation, and core outcome measurement index (COMI) scores under long-term observation. CONCLUSIONS Ambulatory spine surgery represents a relatively new approach in Poland, with only a select few centers currently offering this type of service. Outpatient spine surgery is a safe, effective, and cost-effective option for patients requiring basic spine surgeries.
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Affiliation(s)
- Kajetan Latka
- Department of Neurosurgery, The St. Hedwig’s Regional Specialist Hospital, 45-221 Opole, Poland
- Department of Neurosurgery, Institute of Medical Sciences, University of Opole, 45-040 Opole, Poland; (W.K.); (T.O.); (D.L.)
- Center for Minimally Invasive Spine and Peripheral Nerve Surgery neurochirurg.opole.pl, 45-064 Opole, Poland; (K.D.); (M.N.)
| | - Waldemar Kolodziej
- Department of Neurosurgery, Institute of Medical Sciences, University of Opole, 45-040 Opole, Poland; (W.K.); (T.O.); (D.L.)
- Center for Minimally Invasive Spine and Peripheral Nerve Surgery neurochirurg.opole.pl, 45-064 Opole, Poland; (K.D.); (M.N.)
| | - Kacper Domisiewicz
- Center for Minimally Invasive Spine and Peripheral Nerve Surgery neurochirurg.opole.pl, 45-064 Opole, Poland; (K.D.); (M.N.)
| | - Dawid Pawus
- Faculty of Electrical Engineering, Automatic Control and Informatics, Opole University of Technology, 45-758 Opole, Poland;
| | - Tomasz Olbrycht
- Department of Neurosurgery, Institute of Medical Sciences, University of Opole, 45-040 Opole, Poland; (W.K.); (T.O.); (D.L.)
| | - Marcin Niedzwiecki
- Center for Minimally Invasive Spine and Peripheral Nerve Surgery neurochirurg.opole.pl, 45-064 Opole, Poland; (K.D.); (M.N.)
- Department of Neurosurgery, The National Institute of Medicine of the Ministry of Internal Affairs and Administration, 02-507 Warsaw, Poland;
| | - Artur Zaczynski
- Department of Neurosurgery, The National Institute of Medicine of the Ministry of Internal Affairs and Administration, 02-507 Warsaw, Poland;
| | - Dariusz Latka
- Department of Neurosurgery, Institute of Medical Sciences, University of Opole, 45-040 Opole, Poland; (W.K.); (T.O.); (D.L.)
- Center for Minimally Invasive Spine and Peripheral Nerve Surgery neurochirurg.opole.pl, 45-064 Opole, Poland; (K.D.); (M.N.)
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Jayaram RH, Joo PY, Gouzoulis MJ, Ratnasamy PP, Caruana DL, Grauer JN. Single-level Anterior Cervical Discectomy and Fusion Results in Lower Five-year Revisions than Posterior Cervical Foraminotomy in a Large National Cohort. Spine (Phila Pa 1976) 2023; 48:1266-1271. [PMID: 37339256 DOI: 10.1097/brs.0000000000004754] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 06/05/2023] [Indexed: 06/22/2023]
Abstract
STUDY DESIGN A retrospective cohort study using the 2010-2020 MSpine PearlDiver administrative data set. OBJECTIVE To compare perioperative adverse events and five-year revisions for single-level anterior cervical discectomy and fusion (ACDF) versus posterior cervical foraminotomy (PCF). SUMMARY OF BACKGROUND DATA Cervical disk disease can often be treated surgically using single-level ACDF or PCF. Prior studies have suggested that posterior approaches provide similar short-term outcomes as ACDF; however, posterior procedures may have an increased risk of revision surgery. MATERIALS AND METHODS The database was queried for patients undergoing elective single-level ACDF or PCF (excluding cases performed for myelopathy, trauma, neoplasm, and/or infection). Outcomes, including specific complications, readmission, and reoperations, were assessed. Multivariable logistic regression was used to ascertain odds ratios (OR) of 90-day adverse events controlling for age, sex, and comorbidities. Kaplan-Meier survival analysis was performed to determine five-year rates of cervical reoperation in the ACDF and PCF cohorts. RESULTS A total of 31,953 patients treated by ACDF (29,958, 93.76%) or PCF (1995, 6.24%) were identified. Multivariable analysis, controlling for age, sex, and comorbidities, demonstrated that PCF was associated with significantly greater odds of aggregated serious adverse events (OR 2.17, P <0.001), wound dehiscence (OR 5.89, P <0.001), surgical site infection (OR 3.66, P <0.001), and pulmonary embolism (OR 1.72, P =0.04). However, PCF was associated with significantly lower odds of readmission (OR 0.32, P <0.001), dysphagia (OR 0.44, P <0.001), and pneumonia (OR 0.50, P =0.004). At five years, PCF cases had a significantly higher cumulative revision rate compared with ACDF cases (19.0% vs. 14.8%, P <0.001). CONCLUSIONS The current study is the largest to date to compare short-term adverse events and five-year revision rates between single-level ACDF and PCF for nonmyelopathy elective cases. Perioperative adverse events differed by procedure, and it was notable that the incidence of cumulative revisions was higher for PCF. These findings can be used in decision-making when there is clinical equipoise between ACDF and PCF.
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Affiliation(s)
- Rahul H Jayaram
- Department of Orthopaedics and Rehabilitation, Yale School of Medicine, New Haven, CT
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Toll BJ, Whitmore RG. Commentary: Anterior Cervical Discectomy and Fusion Versus Microendoscopic Posterior Cervical Foraminotomy for Unilateral Cervical Radiculopathy: A 1-Year Cost-Utility Analysis. Neurosurgery 2023; 93:e59-e60. [PMID: 37581449 DOI: 10.1227/neu.0000000000002494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 02/24/2023] [Indexed: 08/16/2023] Open
Affiliation(s)
- Brandon J Toll
- Department of Neurosurgery, Lahey Hospital & Medical Center, Burlington , Massachusetts , USA
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Monk SH, Hani U, Pfortmiller D, Dyer EH, Smith MD, Kim PK, Bohl MA, Coric D, Adamson TE, Holland CM, McGirt MJ. Anterior Cervical Discectomy and Fusion Versus Microendoscopic Posterior Cervical Foraminotomy for Unilateral Cervical Radiculopathy: A 1-Year Cost-Utility Analysis. Neurosurgery 2023; 93:628-635. [PMID: 36995083 DOI: 10.1227/neu.0000000000002464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 01/26/2023] [Indexed: 03/31/2023] Open
Abstract
BACKGROUND Anterior cervical discectomy and fusion (ACDF) and posterior cervical foraminotomy (PCF) are the most common surgical approaches for medically refractory cervical radiculopathy. Rigorous cost-effectiveness studies comparing ACDF and PCF are lacking. OBJECTIVE To assess the cost-utility of ACDF vs PCF performed in the ambulatory surgery center setting for Medicare and privately insured patients at 1-year follow-up. METHODS A total of 323 patients who underwent 1-level ACDF (201) or PCF (122) at a single ambulatory surgery center were compared. Propensity matching generated 110 pairs (220 patients) for analysis. Demographic data, resource utilization, patient-reported outcome measures, and quality-adjusted life-years were assessed. Direct costs (1-year resource use × unit costs based on Medicare national allowable payment amounts) and indirect costs (missed workdays × average US daily wage) were recorded. Incremental cost-effectiveness ratios were calculated. RESULTS Perioperative safety, 90-day readmission, and 1-year reoperation rates were similar between groups. Both groups experienced significant improvements in all patient-reported outcome measures at 3 months that was maintained at 12 months. The ACDF cohort had a significantly higher preoperative Neck Disability Index and a significantly greater improvement in health-state utility (ie, quality-adjusted life-years gained) at 12 months. ACDF was associated with significantly higher total costs at 1 year for both Medicare ($11 744) and privately insured ($21 228) patients. The incremental cost-effectiveness ratio for ACDF was $184 654 and $333 774 for Medicare and privately insured patients, respectively, reflecting poor cost-utility. CONCLUSION Single-level ACDF may not be cost-effective in comparison with PCF for surgical management of unilateral cervical radiculopathy.
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Affiliation(s)
- Steve H Monk
- Carolina Neurosurgery & Spine Associates, Charlotte , North Carolina , USA
- SpineFirst, Atrium Health, Charlotte , North Carolina , USA
| | - Ummey Hani
- Carolina Neurosurgery & Spine Associates, Charlotte , North Carolina , USA
- SpineFirst, Atrium Health, Charlotte , North Carolina , USA
| | - Deborah Pfortmiller
- Carolina Neurosurgery & Spine Associates, Charlotte , North Carolina , USA
- SpineFirst, Atrium Health, Charlotte , North Carolina , USA
| | - E Hunter Dyer
- Carolina Neurosurgery & Spine Associates, Charlotte , North Carolina , USA
- SpineFirst, Atrium Health, Charlotte , North Carolina , USA
| | - Mark D Smith
- Carolina Neurosurgery & Spine Associates, Charlotte , North Carolina , USA
- SpineFirst, Atrium Health, Charlotte , North Carolina , USA
| | - Paul K Kim
- Carolina Neurosurgery & Spine Associates, Charlotte , North Carolina , USA
- SpineFirst, Atrium Health, Charlotte , North Carolina , USA
| | - Michael A Bohl
- Carolina Neurosurgery & Spine Associates, Charlotte , North Carolina , USA
- SpineFirst, Atrium Health, Charlotte , North Carolina , USA
| | - Domagoj Coric
- Carolina Neurosurgery & Spine Associates, Charlotte , North Carolina , USA
- SpineFirst, Atrium Health, Charlotte , North Carolina , USA
| | - Tim E Adamson
- Carolina Neurosurgery & Spine Associates, Charlotte , North Carolina , USA
- SpineFirst, Atrium Health, Charlotte , North Carolina , USA
| | - Christopher M Holland
- Carolina Neurosurgery & Spine Associates, Charlotte , North Carolina , USA
- SpineFirst, Atrium Health, Charlotte , North Carolina , USA
| | - Matthew J McGirt
- Carolina Neurosurgery & Spine Associates, Charlotte , North Carolina , USA
- SpineFirst, Atrium Health, Charlotte , North Carolina , USA
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Gong S, Cui L, Liu H, Ye Y. Clinical efficacy of posterior endoscopic cervical modified trench technique in the treatment of cervical spondylotic myelopathy: A retrospective study. Medicine (Baltimore) 2023; 102:e33772. [PMID: 37233430 PMCID: PMC10219704 DOI: 10.1097/md.0000000000033772] [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: 02/03/2023] [Accepted: 04/24/2023] [Indexed: 05/27/2023] Open
Abstract
To investigate the clinical efficacy of the posterior endoscopic cervical modified trench technique in the treatment of cervical spondylotic myelopathy (CSM). This retrospective study included 9 patients with single-segment CSM, who were treated with posterior endoscopic cervical modified trench technique. Related clinical data, the visual analog scale, Japanese Orthopedic Association (JOA) ratings, JOA improvement rate, the minimum sagittal diameter of the spinal canal, and surgical complications were recorded. There were 5 men and 4 females, with an average age of 60.44 ± 16.49 years. Without any significant side effects like paralysis, vascular damage, or cerebrospinal fluid leaking, all surgeries were successfully completed. One year's worth of follow-up with patients lasted for 8.56 ± 3.68 months. When compared to before surgery, the postoperative visual analog scale ratings, JOA scores, and minimum sagittal diameter of the spinal canal value all showed a substantial improvement (P < .01). At the most recent follow-up, 2 patients had a JOA improvement rate of >75%, 6 patients had a JOA improvement rate of 74 to 50%, 1 patient had a JOA improvement rate of 49 to 25%, and none had a JOA improvement rate of <25%. The JOA improvement rate was above 90% for overall excellent and good ratings. In our study, the ventral epidural space may be maneuvered more easily and instrument-induced nerve discomfort is decreased when using the posterior endoscopic cervical modified trench approach with posterior endoscopy. The short-term clinical effect of the posterior endoscopic cervical modified trench technique for CSM is satisfactory.
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Affiliation(s)
- Shuangquan Gong
- The Minimally Invasive Spinal Department of Mianyang Orthopedic Hospital, Mianyang City, Sichuan Province, China
| | - Liqiang Cui
- The Minimally Invasive Spinal Department of Mianyang Orthopedic Hospital, Mianyang City, Sichuan Province, China
| | - Hongjun Liu
- The Minimally Invasive Spinal Department of Mianyang Orthopedic Hospital, Mianyang City, Sichuan Province, China
| | - Yu Ye
- The Minimally Invasive Spinal Department of Mianyang Orthopedic Hospital, Mianyang City, Sichuan Province, China
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