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Kolcun JPG, Fessler RG, Nunley PD, Eastlack RK, Mummaneni PV, Okonkwo DO, Uribe JS, Fu KM, Wang MY, Kanter AS, Anand N, Mundis GM, Passias PG, Chou D. Staged Versus Same-Day Surgery in Circumferential Minimally Invasive Deformity Correction. Neurosurgery 2024:00006123-990000000-01175. [PMID: 38785441 DOI: 10.1227/neu.0000000000003000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 03/21/2024] [Indexed: 05/25/2024] Open
Abstract
BACKGROUND AND OBJECTIVES We sought to compare long-term clinical and radiographic outcomes in patients who underwent staged vs same-day circumferential minimally invasive surgery (cMIS) for adult spinal deformity (ASD). METHODS We reviewed staged and same-day cMIS ASD cases in a prospective multi-institution database to compare preoperative and 2-year clinical and radiographic parameters between cohorts. RESULTS A total of 85 patients with a 2-year follow-up were identified (27 staged, 58 same-day). Staged patients had more extensive surgeries and greater hospital length of stay (all P < .001). There were no significant differences in preoperative or 2-year postoperative clinical metrics between cohorts. Patients in the staged cohort also had greater preoperative coronal deformity and thus experienced greater reduction in coronal deformity at 2 years (all P < .01). CONCLUSION Patients undergoing staged or same-day cMIS correction had similar outcomes at 2 years postoperatively. Staged cMIS ASD correction may be more appropriate in patients with greater deformity, higher frailty, and who require longer, more extensive surgeries.
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Affiliation(s)
- John Paul G Kolcun
- Department of Neurological Surgery, Rush University Medical Center, Chicago, Illinois, USA
| | - Richard G Fessler
- Department of Neurological Surgery, Rush University Medical Center, Chicago, Illinois, USA
| | | | - Robert K Eastlack
- Department of Orthopedic Surgery, Scripps Health, La Jolla, California, USA
| | - Praveen V Mummaneni
- Department of Neurosurgery, University of California, San Francisco, San Francisco, California, USA
| | - David O Okonkwo
- Department of Neurosurgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
| | - Juan S Uribe
- Department of Neurosurgery, Barrow Neurological Institute, Phoenix, Arizona, USA
| | - Kai-Ming Fu
- Department of Neurological Surgery, Weill-Cornell Medical Center, New York, New York, USA
| | - Michael Y Wang
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
| | - Adam S Kanter
- Department of Neurosurgery, Hoag Specialty Clinic, Newport Beach, California, USA
| | - Neel Anand
- Department of Orthopaedics, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Gregory M Mundis
- Department of Orthopedic Surgery, Scripps Health, La Jolla, California, USA
| | - Peter G Passias
- Department of Neurosurgery, New York University, New York, New York, USA
| | - Dean Chou
- Department of Neurological Surgery, The Och Spine Hospital, Columbia University, New York, New York, USA
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Noureldine MHA, McBride P, Liaw D, Coughlin E, Mhaskar R, Alikhani P. Pelvic Incidence as a Predictor of Proximal Junctional Failure in Patients Undergoing Anterior Column Realignment with Anterior Longitudinal Ligament Release to Restore Lordosis in Adult Spinal Deformity: A Retrospective Cohort Study. World Neurosurg 2024; 182:e772-e779. [PMID: 38092350 DOI: 10.1016/j.wneu.2023.12.036] [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: 07/31/2023] [Revised: 12/05/2023] [Accepted: 12/06/2023] [Indexed: 01/07/2024]
Abstract
OBJECTIVE To identify variables that may contribute to the development of proximal junctional failure (PJF) in patients with long lumbo-sacral and thoraco-lumbo-pelvic constructs undergoing anterior column realignment (ACR) with anterior longitudinal ligament release (ALLR). METHODS Data of patients with adult spinal deformity who underwent ACR with ALLR at L3-4 were collected retrospectively from medical records and a prospectively maintained spine research database between 2016 and 2022. RESULTS Eleven (41%) developed PJF at a mean of 24 ± 21 months from the index surgery. The cohort was then divided into 2 groups for analysis, 13 subjects in the high pelvic incidence (PI) group (defined as PI ≥ 55°) and 14 subjects in the low PI group (defined as PI < 55°). Visual Analog Scale for back pain and Oswestry Disability Index decreased from 9.5 to 2.1 and 61 to 10 in the high PI group, and from 8.9 to 2.4 and 60.9 to 10.3 in the low PI group, respectively. PI (P = 0.004), sacral slope (P = 0.005), and postoperative PI-lumbar lordosis mismatch (P = 0.02) were found to be significant predictors of PJF. The receiver operator curve revealed a cutoff PI value ≤ 53° (95% confidence interval: 52°-64°), below which the risk of PJF becomes significantly higher in patients undergoing ACR with ALLR at L3-4. CONCLUSIONS PI may be a predictor of PJF and highly correlates with ACR-ALLR levels. In patients undergoing L3-4 ACR-ALLR, a PI value of ≤53° is associated with a significantly elevated risk of PJF. Preoperative planning of ACR-ALLR level based on normal sagittal alignment in otherwise healthy individuals may mitigate the risk of PJF development in patients with adult spinal deformity treated with ACR-ALLR.
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Affiliation(s)
- Mohammad Hassan A Noureldine
- Department of Neurosurgery and Brain Repair, University of South Florida Morsani College of Medicine, Tampa, Florida, USA
| | - Paul McBride
- Department of Neurosurgery and Brain Repair, University of South Florida Morsani College of Medicine, Tampa, Florida, USA
| | - Deborah Liaw
- University of South Florida Morsani College of Medicine, Tampa, Florida, USA
| | - Emily Coughlin
- University of South Florida Morsani College of Medicine, Tampa, Florida, USA
| | - Rahul Mhaskar
- Department of Internal Medicine, University of South Florida, Tampa, Florida, USA
| | - Puya Alikhani
- Department of Neurosurgery and Brain Repair, University of South Florida Morsani College of Medicine, Tampa, Florida, USA.
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Thompson JC, Djurasovic M, Glassman SD, Gum JL, Brown ME, Daniels CL, Schmidt GO, Carreon LY. Staged circumferential lumbar fusions have less intraoperative complications and shorter operative time with no difference in 30-, 90-, and 1-year complications: a propensity-matched cohort analysis of 190 patients. Spine J 2024; 24:132-136. [PMID: 37690479 DOI: 10.1016/j.spinee.2023.08.014] [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: 04/27/2023] [Revised: 08/08/2023] [Accepted: 08/29/2023] [Indexed: 09/12/2023]
Abstract
BACKGROUND CONTEXT Circumferential lumbar fusions (cLFs) are becoming more common with increasing and more minimally invasive anterior access techniques. Staging allows reassessment of indirect decompression and alignment prior to the posterior approach, and optimization of OR time management. Safety of staging has been well documented in deformity surgery but has yet to be delineated in less extensive, degenerative cLFs. PURPOSE The purpose of this study is to compare perioperative complications and outcomes between staged versus single-anesthetic circumferential fusions in the lumbar spine. STUDY DESIGN Propensity-matched comparative observational cohort. PATIENT SAMPLE Patients who underwent cLFs for lumbar degenerative disease. OUTCOME MEASURES In-hospital, 30-day, 90-day, and 1-year complications. METHODS From 123 patients undergoing single-anesthetic and 154 patients undergoing staged cLF, 95 patients in each group were propensity-matched based on age, sex, BMI, ASA score, smoking, revision, and number of levels. We compared perioperative, 30-day, 90-day, and 1-year complications between the two cohorts. RESULTS Mean days between stages was 1.58. Single-anesthetic cLF had longer total surgery time (304 vs 240 minutes, p<.001) but shorter total PACU total time (133 vs 196 minutes, p<.001). However, there was no difference in total anesthesia time (368 vs 374 minutes, p=.661) and total EBL (357 vs 320cc, p=.313). Intraoperative complications were nine incidental durotomies in the single-anesthetic and one iliac vein injury in the staged group (9% vs 1%, p=.018). There was no difference of in-hospital (38 vs 31, p=.291), 30-day (16 vs 23, p=.281), 90-day (10 vs 15, p=.391), 1-year complications (9 vs 12, p=.644), and overall cumulative 1-year complications (54 vs 56, p=.883) between the two cohorts. CONCLUSIONS There is a decrease in total surgical time and intraoperative complications during staged compared with single-anesthetic cLF with no difference in in-hospital, 30-day, 90-day, and 1-year complications between approaches.
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Affiliation(s)
- Jeremy C Thompson
- Norton Leatherman Spine Center, 210 East Gray St, Suite 900, Louisville, KY 40202, USA
| | - Mladen Djurasovic
- Norton Leatherman Spine Center, 210 East Gray St, Suite 900, Louisville, KY 40202, USA
| | - Steven D Glassman
- Norton Leatherman Spine Center, 210 East Gray St, Suite 900, Louisville, KY 40202, USA
| | - Jeffrey L Gum
- Norton Leatherman Spine Center, 210 East Gray St, Suite 900, Louisville, KY 40202, USA
| | - Morgan E Brown
- Norton Leatherman Spine Center, 210 East Gray St, Suite 900, Louisville, KY 40202, USA
| | - Christy L Daniels
- Norton Leatherman Spine Center, 210 East Gray St, Suite 900, Louisville, KY 40202, USA
| | - Grant O Schmidt
- Norton Leatherman Spine Center, 210 East Gray St, Suite 900, Louisville, KY 40202, USA
| | - Leah Y Carreon
- Norton Leatherman Spine Center, 210 East Gray St, Suite 900, Louisville, KY 40202, USA.
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Patel RV, Yearley AG, Isaac H, Chalif EJ, Chalif JI, Zaidi HA. Advances and Evolving Challenges in Spinal Deformity Surgery. J Clin Med 2023; 12:6386. [PMID: 37835030 PMCID: PMC10573859 DOI: 10.3390/jcm12196386] [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: 08/29/2023] [Revised: 10/03/2023] [Accepted: 10/04/2023] [Indexed: 10/15/2023] Open
Abstract
BACKGROUND Surgical intervention is a critical tool to address adult spinal deformity (ASD). Given the evolution of spinal surgical techniques, we sought to characterize developments in ASD correction and barriers impacting clinical outcomes. METHODS We conducted a literature review utilizing PubMed, Embase, Web of Science, and Google Scholar to examine advances in ASD surgical correction and ongoing challenges from patient and clinician perspectives. ASD procedures were examined across pre-, intra-, and post-operative phases. RESULTS Several factors influence the effectiveness of ASD correction. Standardized radiographic parameters and three-dimensional modeling have been used to guide operative planning. Complex minimally invasive procedures, targeted corrections, and staged procedures can tailor surgical approaches while minimizing operative time. Further, improvements in osteotomy technique, intraoperative navigation, and enhanced hardware have increased patient safety. However, challenges remain. Variability in patient selection and deformity undercorrection have resulted in heterogenous clinical responses. Surgical complications, including blood loss, infection, hardware failure, proximal junction kyphosis/failure, and pseudarthroses, pose barriers. Although minimally invasive approaches are being utilized more often, clinical validation is needed. CONCLUSIONS The growing prevalence of ASD requires surgical solutions that can lead to sustained symptom resolution. Leveraging computational and imaging advances will be necessary as we seek to provide comprehensive treatment plans for patients.
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Affiliation(s)
- Ruchit V. Patel
- Department of Neurosurgery, Brigham and Women’s Hospital, Boston, MA 02115, USA; (R.V.P.); (A.G.Y.); (E.J.C.); (J.I.C.)
- Harvard Medical School, Boston, MA 02115, USA
| | - Alexander G. Yearley
- Department of Neurosurgery, Brigham and Women’s Hospital, Boston, MA 02115, USA; (R.V.P.); (A.G.Y.); (E.J.C.); (J.I.C.)
- Harvard Medical School, Boston, MA 02115, USA
| | - Hannah Isaac
- Department of Neurosurgery, Brigham and Women’s Hospital, Boston, MA 02115, USA; (R.V.P.); (A.G.Y.); (E.J.C.); (J.I.C.)
| | - Eric J. Chalif
- Department of Neurosurgery, Brigham and Women’s Hospital, Boston, MA 02115, USA; (R.V.P.); (A.G.Y.); (E.J.C.); (J.I.C.)
- Harvard Medical School, Boston, MA 02115, USA
| | - Joshua I. Chalif
- Department of Neurosurgery, Brigham and Women’s Hospital, Boston, MA 02115, USA; (R.V.P.); (A.G.Y.); (E.J.C.); (J.I.C.)
- Harvard Medical School, Boston, MA 02115, USA
| | - Hasan A. Zaidi
- Department of Neurosurgery, Brigham and Women’s Hospital, Boston, MA 02115, USA; (R.V.P.); (A.G.Y.); (E.J.C.); (J.I.C.)
- Harvard Medical School, Boston, MA 02115, USA
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Chung A, Robinson J, Gendelberg D, Jimenez J, Anand A, Rao A, Khandehroo B, Khandehroo B, Kahwaty S, Anand N. Do peri-operative parathyroid hormone (PTH) analogues improve bone density and decrease mechanical complications in spinal deformity correction?-a minimum 2-year radiological study measuring Hounsfield units. 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 2023; 32:3651-3658. [PMID: 37553471 DOI: 10.1007/s00586-023-07859-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 06/19/2023] [Accepted: 07/07/2023] [Indexed: 08/10/2023]
Abstract
OBJECTIVE To delineate whether use of a PTH analogue in the 1-year peri-operative period improves lumbar bone density. METHODS A prospectively collected data registry of 254 patients who underwent CMIS correction of ASD (Cobb angle > 20 or SVA > 50 mm or (PI-LL) > 10) from Jan 2011 to Jan 2020 was analysed. Patients who were placed on PTH analogues for one year in conjunction with surgery were included in the study. Ultimately, 41 patients who had pre- and two-year post-operative CT scans for review were included in this study. Hounsfield units were measured off of the L1-L3 levels for all patients before and after surgery on pre-op and post-op CT scans. RESULT The mean age of patients in this study was 70 (52-84, SD 7). Mean follow-up was 66 (24-132, SD 33) months. Twenty-three patients met criteria for severe deformity (Cobb angle > 50 degrees or SVA > 95 mm or PI/LL mismatch > 20 or PT > 30). Based off 2-year post-op CT scan, there were significant improvements in L1 Hounsfield units when comparing pre-op values (96; SD 55) to post-op values (185 SD 102); p. < 0.05. There was no screw loosening or screw pull out. There were 2 patients with PJF (4.8%). Both these patients had not completed their PTH treatment: one only took PTH for 3 months (PJF at 2-year post-op) and the other one took it only for 1 month (PJF at 1-year post-op). No increase in bone density was noted (based off of Hounsfield units) in five patients (12%) despite completion of their PTH therapy. Only one patient experienced nausea from PTH therapy. There were no other PTH related adverse events. CONCLUSION The incidence of PTH analogues failing to increase bone density in our series was low at 12%. This study shows that PTH analogues may be a powerful adjunct for increasing bone density and may help to mitigate the risk of mechanical complications in patients undergoing deformity correction with minimally invasive techniques. Future comparative studies are warranted to confirm these latter findings and to potentially protocolize the ideal peri-operative bone health optimization strategy.
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Affiliation(s)
- Andrew Chung
- Department of Orthopedics, Banner Health, 13995 W Statler Blvd #200, Surprise, Phoenix, AZ, 85374, USA.
| | - Jerry Robinson
- Department of Orthopedics, University of Pittsburg Medical Center (UPMC) Harrisburg, Harrisburg, PA, USA
| | - David Gendelberg
- Department of Orthopedics, University of California, San Francisco (UCSF) Orthopedics Trauma Institute, San Francisco, CA, USA
| | - Jose Jimenez
- Department of Orthopedics, Central Florida Bone & Joint Institute, Orange City, FL, USA
| | - Anita Anand
- Department of Orthopedics, Cedars-Sinai Spine Center, Los Angeles, CA, USA
| | - Arya Rao
- Department of Orthopedics, Cedars-Sinai Spine Center, Los Angeles, CA, USA
| | | | - Babak Khandehroo
- Department of Orthopedics, Cedars-Sinai Spine Center, Los Angeles, CA, USA
| | - Sheila Kahwaty
- Department of Orthopedics, Cedars-Sinai Spine Center, Los Angeles, CA, USA
| | - Neel Anand
- Department of Orthopedics, Cedars-Sinai Spine Center, Los Angeles, CA, USA
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Management of severe adult spinal deformity with circumferential minimally invasive surgical strategies without posterior column osteotomies: a 13-year experience. Spine Deform 2022; 10:1157-1168. [PMID: 35334105 DOI: 10.1007/s43390-022-00478-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 01/22/2022] [Indexed: 12/18/2022]
Abstract
OBJECTIVE To evaluate the mid- to long-term clinical outcomes of circumferential minimally invasive surgery (CMIS) without posterior column osteotomies for severe adult spine deformity (ASD) correction. METHODS All patients with a minimum of 2-year follow-up undergoing staged CMIS correction of ASD from January 2007 to July 2018 were identified. All included patients had fusion of 3 or more interbody levels that spanned the L5-S1 junction. Only patients with severe deformity, Coronal Cobb > 50° or at least one SRS-Schwab ++ sagittal modifier (SVA > 95 mm, or PI-LL > 20, or PT > 30) were included. All complications were noted. RESULT 136 patients met inclusion criteria; mean age of patients was 63.6 years (21-85, SD 13.7). The mean follow-up was 82.8 months (24-159, SD 36.6). The mean number of levels fused was 7 (3-16, SD 3). A total of 40 (29.4%) major complications were noted at final follow-ups: 2 (1.4%) intra-operative, 12 (8.9%) peri-operative (≤ 6 weeks from index), 26 (19.1%) post-operative (> 6 weeks from index). There was a total of 53 (40.0%) minor complications. Seven (5.1%) patients who developed radiographic proximal junctional kyphosis. Three patients (2.2%) developed proximal junctional failure. There were 8 (5.9%) cases of pseudarthrosis. Five of these occurred in patients undergoing AxiaLIF. All patients experienced improvements in patient-perceived outcomes (VAS, TIS, ODI, and SRS-22) and radiographic parameters at last follow-up when compared to pre-op (p < 0.05). CONCLUSION Rates of complications with CMIS correction of severe ASD are lower than published rates of complications seen with open ASD correction. Specifically, the incidence of catastrophic complications is lower. Furthermore, CMIS is associated with significant improvements in clinical and functional outcomes, low rates of pseudarthrosis and proximal junctional kyphosis. Therefore, in the appropriately selected patient, CMIS may be an excellent alternative approach to addressing severe ASD.
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Arimura D, Shinohara A, Katsumi S, Obata S, Ikegami T, Saito M. Retroperitoneal Hematoma Due to Drainage Tube Insertion in Extreme Lateral Interbody Fusion: A Case Report. JBJS Case Connect 2022; 12:01709767-202209000-00014. [PMID: 35852166 DOI: 10.2106/jbjs.cc.22.00051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
CASE A 73-year-old woman presented with degenerative kyphoscoliosis. Radiographs revealed sagittal and coronal imbalance with lumbar spinal stenosis. Extreme lateral interbody fusion (XLIF) was performed in the first stage of 2-stage surgery, and a closed-suction drainage tube was placed in the retroperitoneal cavity. Postoperatively, there was massive bleeding through the tube. Contrast-enhanced computed tomography revealed lumbar artery injury, which required emergency arterial embolization. CONCLUSION Placing a drainage tube in the retroperitoneal cavity during XLIF surgery can help detect complications such as intestinal and ureteral injuries, the lumbar artery within the lumbar muscle can be injured during drain placement.
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Affiliation(s)
- Daigo Arimura
- Department of Orthopedic Surgery, the Jikei University School of Medicine, Tokyo, Japan
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Conditions for Achieving Postoperative Pelvic Incidence-Lumbar Lordosis < 10° in Circumferential Minimally Invasive Surgery for Adult Spinal Deformity. J Clin Med 2022; 11:jcm11061586. [PMID: 35329912 PMCID: PMC8951564 DOI: 10.3390/jcm11061586] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 02/27/2022] [Accepted: 03/11/2022] [Indexed: 12/10/2022] Open
Abstract
This retrospective study aimed to evaluate the clinical outcomes of circumferential minimally invasive surgery (CMIS) using lateral lumbar interbody fusion (LLIF) and percutaneous pedicle screw (PPS) in adult spinal deformity (ASD) patients, and to clarify the conditions for achieving postoperative pelvic incidence-lumbar lordosis (PI-LL) < 10°. Demographics and other parameters of ASD patients who underwent CMIS and who were divided into groups G (achieved postoperative PI-LL < 10°) and P (PI-LL ≥ 10°) were compared. Of the 145 included ASD patients who underwent CMIS, the average fused level, bleeding volume, operative time, and number of intervertebral discs that underwent LLIF were 10.3 ± 0.5 segments, 723 ± 375 mL, 366 ± 70 min, and 4.0 segments, respectively. The rod material was titanium alloy in all the cases. The PI-LL significantly improved from 37.3 ± 17.9° to 1.2 ± 12.2° postoperatively. Pre- and postoperative PI, postoperative LL, preoperative PI-LL, PI-LL after LLIF, and postoperative PI-LL were significantly larger in group P. PI-LL after LLIF was identified as a significant risk factor of postoperative PI-LL < 10° by logistic regression, and the cut-off value on receiver operating characteristic curve analysis was 20°. Sufficient correction was achieved by CMIS. If PI-LL after LLIF was ≤20°, it was corrected to the ideal alignment by the PPS procedure.
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Harris AB, Puvanesarajah V, Raad M, Marrache M, Ren M, Skolasky RL, Kebaish KM, Neuman BJ. How is staging of ALIF following posterior spinal arthrodesis to the pelvis related to functional improvement in patients with adult spinal deformity? Spine Deform 2021; 9:1085-1091. [PMID: 33464551 DOI: 10.1007/s43390-020-00272-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 12/14/2020] [Indexed: 11/28/2022]
Abstract
STUDY DESIGN Retrospective cohort. OBJECTIVES To compare postoperative functional improvement in patients who underwent staged versus non-staged anterior-posterior spinal arthrodesis for adult spinal deformity (ASD). In patients with ASD, spinal arthrodesis can be performed in 2 stages to avoid the physiologic insult of a lengthy surgery. The association between staged surgery and postoperative functional improvement has not been well studied. METHODS We included 87 patients (59 women) with ASD who underwent anterior-posterior spinal arthrodesis of > 5 levels with fixation to the pelvis from 2010-2014. Primary outcomes were the frequency of achieving at least a minimal clinically important difference (MCID) in the Scoliosis Research Society-22r (SRS-22r) Activity domain and the timeframe in which it was achieved. The secondary outcome was patient satisfaction (SRS-22r Patient Satisfaction domain). A Cox proportional hazard model was used to compare functional improvement over time between staged and non-staged groups. Our study was powered to detect a relative hazard ratio of 0.53, β = 0.20. α = 0.05. RESULTS The frequency of achieving an MCID in SRS-22r Activity score did not differ significantly between the staged group (33/41 patients) and the non-staged group (34/46 patients) (hazard ratio 0.74; 95% confidence interval 0.41-1.36). Median times to achieving an MCID in SRS-22r Activity score were 191 days (interquartile range: 86-674) in the staged group and 181 days (interquartile range: 72-474) in the non-staged group (p = .75). The staged and non-staged groups had similar SRS-22r Patient Satisfaction scores at 3-9 months postoperatively and at final follow-up (both, p > .05). CONCLUSION Patients with ASD who underwent staged anterior-posterior spinal arthrodesis within 3 months after index surgery were similarly likely to experience functional improvement in the same timeframe as patients who underwent non-staged surgery. Patient satisfaction did not differ significantly between staged and non-staged groups. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Andrew B Harris
- Department of Orthopaedic Surgery, The Johns Hopkins University, 601 N. Caroline Street, JHOC 5241, Baltimore, MD, 21287, USA
| | - Varun Puvanesarajah
- Department of Orthopaedic Surgery, The Johns Hopkins University, 601 N. Caroline Street, JHOC 5241, Baltimore, MD, 21287, USA
| | - Micheal Raad
- Department of Orthopaedic Surgery, The Johns Hopkins University, 601 N. Caroline Street, JHOC 5241, Baltimore, MD, 21287, USA
| | - Majd Marrache
- Department of Orthopaedic Surgery, The Johns Hopkins University, 601 N. Caroline Street, JHOC 5241, Baltimore, MD, 21287, USA
| | - Mark Ren
- Department of Orthopaedic Surgery, The Johns Hopkins University, 601 N. Caroline Street, JHOC 5241, Baltimore, MD, 21287, USA
| | - Richard L Skolasky
- Department of Orthopaedic Surgery, The Johns Hopkins University, 601 N. Caroline Street, JHOC 5241, Baltimore, MD, 21287, USA
| | - Khaled M Kebaish
- Department of Orthopaedic Surgery, The Johns Hopkins University, 601 N. Caroline Street, JHOC 5241, Baltimore, MD, 21287, USA
| | - Brian J Neuman
- Department of Orthopaedic Surgery, The Johns Hopkins University, 601 N. Caroline Street, JHOC 5241, Baltimore, MD, 21287, USA.
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Mummaneni PV, Hussain I, Shaffrey CI, Eastlack RK, Mundis GM, Uribe JS, Fessler RG, Park P, Robinson L, Rivera J, Chou D, Kanter AS, Okonkwo DO, Nunley PD, Wang MY, Marca FL, Than KD, Fu KM. The minimally invasive interbody selection algorithm for spinal deformity. J Neurosurg Spine 2021; 34:741-748. [PMID: 33711811 DOI: 10.3171/2020.9.spine20230] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 09/09/2020] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Minimally invasive surgery (MIS) for spinal deformity uses interbody techniques for correction, indirect decompression, and arthrodesis. Selection criteria for choosing a particular interbody approach are lacking. The authors created the minimally invasive interbody selection algorithm (MIISA) to provide a framework for rational decision-making in MIS for deformity. METHODS A retrospective data set of circumferential MIS (cMIS) for adult spinal deformity (ASD) collected over a 5-year period was analyzed by level in the lumbar spine to identify surgeon preferences and evaluate segmental lordosis outcomes. These data were used to inform a Delphi session of minimally invasive deformity surgeons from which the algorithm was created. The algorithm leads to 1 of 4 interbody approaches: anterior lumbar interbody fusion (ALIF), anterior column release (ACR), lateral lumbar interbody fusion (LLIF), and transforaminal lumbar interbody fusion (TLIF). Preoperative and 2-year postoperative radiographic parameters and clinical outcomes were compared. RESULTS Eleven surgeons completed 100 cMISs for ASD with 338 interbody devices, with a minimum 2-year follow-up. The type of interbody approach used at each level from L1 to S1 was recorded. The MIISA was then created with substantial agreement. The surgeons generally preferred LLIF for L1-2 (91.7%), L2-3 (85.2%), and L3-4 (80.7%). ACR was most commonly performed at L3-4 (8.4%) and L2-3 (6.2%). At L4-5, LLIF (69.5%), TLIF (15.9%), and ALIF (9.8%) were most commonly utilized. TLIF and ALIF were the most selected approaches at L5-S1 (61.4% and 38.6%, respectively). Segmental lordosis at each level varied based on the approach, with greater increases reported using ALIF, especially at L4-5 (9.2°) and L5-S1 (5.3°). A substantial increase in lordosis was achieved with ACR at L2-3 (10.9°) and L3-4 (10.4°). Lateral interbody arthrodesis without the use of an ACR did not generally result in significant lordosis restoration. There were statistically significant improvements in lumbar lordosis (LL), pelvic incidence-LL mismatch, coronal Cobb angle, and Oswestry Disability Index at the 2-year follow-up. CONCLUSIONS The use of the MIISA provides consistent guidance for surgeons who plan to perform MIS for deformity. For L1-4, the surgeons preferred lateral approaches to TLIF and reserved ACR for patients who needed the greatest increase in segmental lordosis. For L4-5, the surgeons' order of preference was LLIF, TLIF, and ALIF, but TLIF failed to demonstrate any significant lordosis restoration. At L5-S1, the surgical team typically preferred an ALIF when segmental lordosis was desired and preferred a TLIF if preoperative segmental lordosis was adequate.
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Affiliation(s)
- Praveen V Mummaneni
- 1Department of Neurological Surgery, University of California, San Francisco, California
| | - Ibrahim Hussain
- 2Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida
| | - Christopher I Shaffrey
- 3Departments of Neurological Surgery and Orthopedic Surgery, Duke University, Durham, North Carolina
| | - Robert K Eastlack
- 4Department of Orthopedic Surgery, Scripps Clinic Torrey Pines, La Jolla, California
| | - Gregory M Mundis
- 4Department of Orthopedic Surgery, Scripps Clinic Torrey Pines, La Jolla, California
| | - Juan S Uribe
- 5Department of Neurosurgery, Barrow Neurological Institute, Phoenix, Arizona
| | | | - Paul Park
- 7Department of Neurosurgery, University of Michigan, Ann Arbor, Michigan
| | | | | | - Dean Chou
- 1Department of Neurological Surgery, University of California, San Francisco, California
| | - Adam S Kanter
- 10Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - David O Okonkwo
- 10Department of Neurological Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Pierce D Nunley
- 11Department of Orthopedic Surgery, Spine Institute of Louisiana, Shreveport, Louisiana
| | - Michael Y Wang
- 2Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, Florida
| | - Frank La Marca
- 12Department of Neurosurgery, Henry Ford Health System, Detroit, Michigan; and
| | - Khoi D Than
- 3Departments of Neurological Surgery and Orthopedic Surgery, Duke University, Durham, North Carolina
| | - Kai-Ming Fu
- 13Department of Neurological Surgery, Weill Cornell Medical College, New York, New York
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11
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Chung AS, Ballatori A, Ortega B, Min E, Formanek B, Liu J, Hsieh P, Hah R, Wang JC, Buser Z. Is Less Really More? Economic Evaluation of Minimally Invasive Surgery. Global Spine J 2021; 11:30S-36S. [PMID: 32975446 PMCID: PMC8076812 DOI: 10.1177/2192568220958403] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
STUDY DESIGN Review. OBJECTIVE A comparative overview of cost-effectiveness between minimally invasive versus and equivalent open spinal surgeries. METHODS A literature search using PubMed was performed to identify articles of interest. To maximize the capture of studies in our initial search, we combined variants of the terms "cost," "minimally invasive," "spine," "spinal fusion," "decompression" as either keywords or MeSH terms. PearlDiver database was queried for open and minimally invasive surgery (MIS; endoscopic or percutaneous) reimbursements between Q3 2015 and Q2 2018. RESULTS In general, MIS techniques appeared to decrease blood loss, shorten hospital lengths of stay, mitigate complications, decrease perioperative pain, and enable quicker return to daily activities when compared to equivalent open surgical techniques. With regard to cost, primarily as a result of these latter benefits, MIS was associated with lower costs of care when compared to equivalent open techniques. However, cost reporting was sparse, and relevant methodology was inconsistent throughout the spine literature. Within the PearlDiver data sets, MIS approaches had lower reimbursements than open approaches for both lumbar posterior fusion and discectomy. CONCLUSIONS Current data suggests that overall cost-savings may be incurred with use of MIS techniques. However, data reporting on costs lacks in uniformity, making it difficult to formulate any firm conclusions regarding any incremental improvements in cost-effectiveness that may be incurred when utilizing MIS techniques when compared to equivalent open techniques.
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Affiliation(s)
| | | | | | - Elliot Min
- University of Southern California, Los Angeles, CA, USA
| | | | - John Liu
- University of Southern California, Los Angeles, CA, USA
| | - Patrick Hsieh
- University of Southern California, Los Angeles, CA, USA
| | - Raymond Hah
- University of Southern California, Los Angeles, CA, USA
| | | | - Zorica Buser
- University of Southern California, Los Angeles, CA, USA,Zorica Buser, Department of Orthopedic Surgery, Keck School of Medicine, University of Southern California, 1520 San Pablo St, Suite 2000, Los Angeles, CA 90033, USA.
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12
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Correlation study of radiographic characteristics and operative difficulty in lateral-anterior lumbar interbody fusion (LaLIF) at the L4-5 level: a novel classification for case selection. 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 2020; 30:97-107. [PMID: 32816081 DOI: 10.1007/s00586-020-06570-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 07/15/2020] [Accepted: 08/12/2020] [Indexed: 12/29/2022]
Abstract
PURPOSE To analyze correlations between the realistic surgical difficulty of LaLIF and anatomic characteristics in radiographic images, in order to develop a simple classification to provide guiding information for case selection and evaluate the potential risks of the technique. METHODS Ninety-six consecutive cases who underwent LaLIF surgeries at the L4-5 level with MR T2-weighted images were analyzed. A novel classification based on the anatomic relationships among the disk, great vessels, and psoas muscle was used for grouping. Clinical outcomes and realistic surgical difficulty parameters were recorded, and comparisons were made among different types of classifications. RESULTS Of the 96 analyzed cases, the time of surgical exposure was significantly longer for type C than for type B, and both of these were longer than that of type A. The VAS and ODI were significantly improved at a 1-year follow-up. There was no statistically significant difference among the three types. Type C had the highest incidence of complications, while Type A had the lowest. Analyses of another 304 MRI cases obtained in outpatient clinics showed that the distribution of the three types among these cases was consistent with that of the surgical cohort. CONCLUSION Our novel and simple classification provides useful information for case selection. Type A provided the best indication and is most appropriate for a beginner in this technique. Type C includes the most challenging situations, which may have a high incidence of complications and require sophisticated surgical skills to achieve satisfactory outcomes and avoid approach-related complications.
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