Multistage Hybrid Approach to Management of Significant Sagittal Malalignment: 2-Dimensional Operative Video

2020 ◽  
Author(s):  
Jakub Godzik ◽  
Cory Hartman ◽  
Joshua T Wewel ◽  
Corey T Walker ◽  
David S Xu ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Adult Spinal Deformity ◽  
Hybrid Approach ◽  
Surgical Techniques ◽  
Pedicle Screws ◽  
Pedicle Subtraction Osteotomy ◽  
Surgical Staging ◽  
Hybrid Techniques ◽  
Institutional Review ◽  
Sagittal Deformity

Abstract Minimally invasive surgery (MIS) approaches for the correction of adult spinal deformity have gained popularity in the past decade. MIS approaches can result in decreased hospitalization times and decreased morbidity. However, compared to open techniques, MIS approaches are challenging in the setting of fixed sagittal deformity and strategic surgical staging. Combined MIS and miniopen techniques are described as “hybrid” techniques. We report on the surgical approach for a fixed sagittal deformity using both MIS and miniopen techniques, specifically a miniopen pedicle subtraction osteotomy (PSO) and an anterior column release (ACR). The patient gave written informed consent for surgical treatment; institutional review board approval was not required. The patient first underwent the placement of percutaneous modular pedicle screws from T12 to the pelvis as well as a mini-PSO across the previously fused L5 vertebral body, with the placement of a temporary rod. The following day, the patient underwent lateral transpsoas interbody fusion and ACR at L2/3; a percutaneous rod was then passed from T12 to the pelvis for segmental fixation. The patient recovered well and was discharged home without complication 6 d after the initial day of surgery. The combined use of surgical staging and traditional open techniques in a selective, minimalistic fashion and adherence to minimally invasive principles provide for a powerful set of surgical techniques that capitalize on less invasive approaches to deformity management. Used with permission from Barrow Neurological Institute, Phoenix, Arizona.

Two- and three-year outcomes of minimally invasive and hybrid correction of adult spinal deformity

2021 ◽  
pp. 1-14
Author(s):  
Andrew K. Chan ◽  
Robert K. Eastlack ◽  
Richard G. Fessler ◽  
Khoi D. Than ◽  
Dean Chou ◽  
...  
Keyword(s):  
Back Pain ◽  
Minimally Invasive ◽  
Spinal Deformity ◽  
Interbody Fusion ◽  
Adult Spinal Deformity ◽  
Leg Pain ◽  
Hybrid Procedures ◽  
Hybrid Surgery ◽  
Hybrid Techniques

OBJECTIVE Previous studies have demonstrated the short-term radiographic and clinical benefits of circumferential minimally invasive surgery (cMIS) and hybrid (i.e., minimally invasive anterior or lateral interbody fusion with an open posterior approach) techniques to correct adult spinal deformity (ASD). However, it is not known if these benefits are maintained over longer periods of time. This study evaluated the 2- and 3-year outcomes of cMIS and hybrid correction of ASD. METHODS A multicenter database was retrospectively reviewed for patients undergoing cMIS or hybrid surgery for ASD. Patients were ≥ 18 years of age and had one of the following: maximum coronal Cobb angle (CC) ≥ 20°, sagittal vertical axis (SVA) > 5 cm, pelvic incidence–lumbar lordosis mismatch (PI-LL) ≥ 10°, or pelvic tilt (PT) > 20°. Radiographic parameters were evaluated at the latest follow-up. Clinical outcomes were compared at 2- and 3-year time points and adjusted for age, preoperative CC, levels operated, levels with interbody fusion, presence of L5–S1 anterior lumbar interbody fusion, and upper and lower instrumented vertebral level. RESULTS Overall, 197 (108 cMIS, 89 hybrid) patients were included with 187 (99 cMIS, 88 hybrid) and 111 (60 cMIS, 51 hybrid) patients evaluated at 2 and 3 years, respectively. The mean (± SD) follow-up duration for cMIS (39.0 ± 13.3 months, range 22–74 months) and hybrid correction (39.9 ± 16.8 months, range 22–94 months) were similar for both cohorts. Hybrid procedures corrected the CC greater than the cMIS technique (adjusted p = 0.022). There were no significant differences in postoperative SVA, PI-LL, PT, and sacral slope (SS). At 2 years, cMIS had lower Oswestry Disability Index (ODI) scores (adjusted p < 0.001), greater ODI change as a percentage of baseline (adjusted p = 0.006), less visual analog scale (VAS) back pain (adjusted p = 0.006), and greater VAS back pain change as a percentage of baseline (adjusted p = 0.001) compared to hybrid techniques. These differences were no longer significant at 3 years. At 3 years, but not 2 years, VAS leg pain was lower for cMIS compared to hybrid techniques (adjusted p = 0.032). Those undergoing cMIS had fewer overall complications compared to hybrid techniques (adjusted p = 0.006), but a higher odds of pseudarthrosis (adjusted p = 0.039). CONCLUSIONS In this review of a multicenter database for patients undergoing cMIS and hybrid surgery for ASD, hybrid procedures were associated with a greater CC improvement compared to cMIS techniques. cMIS was associated with superior ODI and back pain at 2 years, but this difference was no longer evident at 3 years. However, cMIS was associated with superior leg pain at 3 years. There were fewer complications following cMIS, with the exception of pseudarthrosis.

scholarly journals Minimally Invasive Pedicle Subtraction Osteotomy via Tubular Retractor for Adult Rigid Spinal Kyphoscoliosis:A Case Report and Review of the Literature

2020 ◽  
Author(s):  
ZeJun Xing ◽  
Zhuo Ma ◽  
Xun Ma
Keyword(s):  
Minimally Invasive ◽  
Adult Spinal Deformity ◽  
Pedicle Subtraction Osteotomy ◽  
Process Time ◽  
X Rays ◽  
Tubular Retractor ◽  
Packed Red Blood Cells ◽  
Proper Patient Selection ◽  
Estimated Blood Loss

Abstract ObjcetiveTo describe a new technique, minimally invasive pedicle subtraction osteotomy (MIS PSO) via tubular retractor, for severe rigid adult spinal deformity.MethodsWe present a case with severe rigid thoracolumbar kyphoscoliosis and describe the surgical procedure , to which this patient responded favorably.ResultsNo surgical complications were seen and estimated blood loss was 600ml. The operation process time was about 5 hours. She received 2 unit of packed red blood cells intraoperatively. VAS was 8.5 points at pre-operation and 2 .0 points at 2 years follow-up. The ODI score improved from 33 to 9. Fusion was confirmed by wedging of L2 vertebral body on CT reconstructive films. Routine x-rays showed that spinal imbalance was corrected and maintained at the final follow up. Maximal ambulation distance increased to 5000 feet at 2 years follow-up.ConclusionA MIS PSO is a feasible option for the treatment of certain subtypes of adult spinal deformity. It is technically feasible that although limited by learning curve of minimally invasive tubular technique and open PSO technique. Both operation skill of the surgeons and proper patient selection is the key to successfully treating adult patients with deformity using MIS PSO.

scholarly journals Minimally Invasive Pedicle Subtraction Osteotomy via Tubular Retractor for Adult Rigid Spinal Kyphoscoliosis: a Case Report and Review of the Literature

2021 ◽  
Author(s):  
ZeJun Xing ◽  
Zhuo Ma ◽  
Xun Ma
Keyword(s):  
Minimally Invasive ◽  
Spinal Deformity ◽  
Adult Spinal Deformity ◽  
Pedicle Subtraction Osteotomy ◽  
Process Time ◽  
X Rays ◽  
Tubular Retractor ◽  
Proper Patient Selection ◽  
Estimated Blood Loss

Abstract Objective To describe a new technique, minimally invasive pedicle subtraction osteotomy (MIS PSO) via tubular retractor, for severe rigid adult spinal deformity.Methods We present a case with severe rigid thoracolumbar kyphoscoliosis and describe the surgical procedure , to which this patient responded favorably.Results No surgical complications were seen and estimated blood loss was 600ml. The operation process time was about 5 hours. She received 2 unit of packed red blood cells intraoperatively. VAS was 8.5 points at pre-operation and 2 .0 points at 2 years follow-up. The ODI score improved from 33 to 9. Fusion was confirmed by wedging of L2 vertebral body on CT reconstructive films. Routine x-rays showed that spinal imbalance was corrected and maintained at the final follow up. Maximal ambulation distance increased to 5000 feet at 2 years follow-up.Conclusion A MIS PSO is a feasible option for the treatment of certain subtypes of adult spinal deformity. It is technically feasible that although limited by learning curve of minimally invasive tubular technique and open PSO technique. Both operation skill of the surgeons and proper patient selection is the key to successfully treating adult patients with deformity using MIS PSO.

scholarly journals Comparison of radiographic results after minimally invasive, hybrid, and open surgery for adult spinal deformity: a multicenter study of 184 patients

2014 ◽  
Vol 36 (5) ◽  
pp. E13 ◽  
Author(s):  
Raqeeb M. Haque ◽  
Gregory M. Mundis ◽  
Yousef Ahmed ◽  
Tarek Y. El Ahmadieh ◽  
Michael Y. Wang ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Spinal Deformity ◽  
Open Surgery ◽  
Adult Spinal Deformity ◽  
Surgical Techniques ◽  
Vertical Axis ◽  
Open Group ◽  
Hybrid Surgery ◽  
Sagittal Vertical Axis ◽  
Hybrid Group

Object Various surgical approaches, including open, minimally invasive, and hybrid techniques, have gained momentum in the management of adult spinal deformity. However, few data exist on the radiographic outcomes of different surgical techniques. The objective of this study was to compare the radiographic and clinical outcomes of the surgical techniques used in the treatment of adult spinal deformity. Methods The authors conducted a retrospective review of two adult spinal deformity patient databases, a prospective open surgery database and a retrospective minimally invasive surgery (MIS) and hybrid surgery database. The time frame of enrollment in this study was from 2007 to 2012. Spinal deformity patients were stratified into 3 surgery groups: MIS, hybrid surgery, and open surgery. The following pre- and postoperative radiographic parameters were assessed: lumbar major Cobb angle, lumbar lordosis, pelvic incidence minus lumbar lordosis (PI−LL), sagittal vertical axis, and pelvic tilt. Scores on the Oswestry Disability Index (ODI) and a visual analog scale (VAS) for both back and leg pain were also obtained from each patient. Results Of the 234 patients with adult spinal deformity, 184 patients had pre- and postoperative radiographs and were thus included in the study (MIS, n = 42; hybrid, n = 33; open, n = 109). Patients were a mean of 61.7 years old and had a mean body mass index of 26.9 kg/m2. Regarding radiographic outcomes, the MIS group maintained a significantly smaller mean lumbar Cobb angle (13.1°) after surgery compared with the open group (20.4°, p = 0.002), while the hybrid group had a significantly larger lumbar curve correction (26.6°) compared with the MIS group (18.8°, p = 0.045). The mean change in the PI−LL was larger for the hybrid group (20.6°) compared with the open (10.2°, p = 0.023) and MIS groups (5.5°, p = 0.003). The mean sagittal vertical axis correction was greater for the open group (25 mm) compared with the MIS group (≤ 1 mm, p = 0.008). Patients in the open group had a significantly larger postoperative thoracic kyphosis (41.45°) compared with the MIS patients (33.5°, p = 0.005). There were no significant differences between groups in terms of pre- and postoperative mean ODI and VAS scores at the 1-year follow-up. However, patients in the MIS group had much lower estimated blood loss and transfusion rates compared with patients in the hybrid or open groups (p < 0.001). Operating room time was significantly longer with the hybrid group compared with the MIS and open groups (p < 0.001). Major complications occurred in 14% of patients in the MIS group, 14% in the hybrid group, and 45% in the open group (p = 0.032). Conclusions This study provides valuable baseline characteristics of radiographic parameters among 3 different surgical techniques used in the treatment of adult spinal deformity. Each technique has advantages, but much like any surgical technique, the positive and negative elements must be considered when tailoring a treatment to a patient. Minimally invasive surgical techniques can result in clinical outcomes at 1 year comparable to those obtained from hybrid and open surgical techniques.

scholarly journals Complications in adult spinal deformity surgery: an analysis of minimally invasive, hybrid, and open surgical techniques

2014 ◽  
Vol 36 (5) ◽  
pp. E15 ◽  
Author(s):  
Juan S. Uribe ◽  
Armen R. Deukmedjian ◽  
Praveen V. Mummaneni ◽  
Kai-Ming G. Fu ◽  
Gregory M. Mundis ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Spinal Deformity ◽  
Open Surgery ◽  
Adult Spinal Deformity ◽  
Intraoperative Complications ◽  
Surgical Techniques ◽  
Open Group ◽  
Inclusion Criteria ◽  
Significant Difference

Object It is hypothesized that minimally invasive surgical techniques lead to fewer complications than open surgery for adult spinal deformity (ASD). The goal of this study was to analyze matched patient cohorts in an attempt to isolate the impact of approach on adverse events. Methods Two multicenter databases queried for patients with ASD treated via surgery and at least 1 year of follow-up revealed 280 patients who had undergone minimally invasive surgery (MIS) or a hybrid procedure (HYB; n = 85) or open surgery (OPEN; n = 195). These patients were divided into 3 separate groups based on the approach performed and were propensity matched for age, preoperative sagittal vertebral axis (SVA), number of levels fused posteriorly, and lumbar coronal Cobb angle (CCA) in an attempt to neutralize these patient variables and to make conclusions based on approach only. Inclusion criteria for both databases were similar, and inclusion criteria specific to this study consisted of an age > 45 years, CCA > 20°, 3 or more levels of fusion, and minimum of 1 year of follow-up. Patients in the OPEN group with a thoracic CCA > 75° were excluded to further ensure a more homogeneous patient population. Results In all, 60 matched patients were available for analysis (MIS = 20, HYB = 20, OPEN = 20). Blood loss was less in the MIS group than in the HYB and OPEN groups, but a significant difference was only found between the MIS and the OPEN group (669 vs 2322 ml, p = 0.001). The MIS and HYB groups had more fused interbody levels (4.5 and 4.1, respectively) than the OPEN group (1.6, p < 0.001). The OPEN group had less operative time than either the MIS or HYB group, but it was only statistically different from the HYB group (367 vs 665 minutes, p < 0.001). There was no significant difference in the duration of hospital stay among the groups. In patients with complete data, the overall complication rate was 45.5% (25 of 55). There was no significant difference in the total complication rate among the MIS, HYB, and OPEN groups (30%, 47%, and 63%, respectively; p = 0.147). No intraoperative complications were reported for the MIS group, 5.3% for the HYB group, and 25% for the OPEN group (p < 0.03). At least one postoperative complication occurred in 30%, 47%, and 50% (p = 0.40) of the MIS, HYB, and OPEN groups, respectively. One major complication occurred in 30%, 47%, and 63% (p = 0.147) of the MIS, HYB, and OPEN groups, respectively. All patients had significant improvement in both the Oswestry Disability Index (ODI) and visual analog scale scores after surgery (p < 0.001), although the MIS group did not have significant improvement in leg pain. The occurrence of complications had no impact on the ODI. Conclusions Results in this study suggest that the surgical approach may impact complications. The MIS group had significantly fewer intraoperative complications than did either the HYB or OPEN groups. If the goals of ASD surgery can be achieved, consideration should be given to less invasive techniques.

Asymmetrical pedicle subtraction osteotomy for correction of concurrent sagittal-coronal imbalance in adult spinal deformity: a comparative analysis

2020 ◽  
Vol 33 (6) ◽  
pp. 822-829
Author(s):  
Darryl Lau ◽  
Alexander F. Haddad ◽  
Vedat Deviren ◽  
Christopher P. Ames
Keyword(s):  
Spinal Deformity ◽  
Adult Spinal Deformity ◽  
Vertical Axis ◽  
Pedicle Subtraction Osteotomy ◽  
Sagittal Imbalance ◽  
Sagittal Vertical Axis ◽  
Coronal Imbalance ◽  
Significant Correction ◽  
Sagittal Deformity

OBJECTIVERigid multiplanar thoracolumbar adult spinal deformity (ASD) cases are challenging and many require a 3-column osteotomy (3CO), specifically asymmetrical pedicle subtraction osteotomy (APSO). The outcomes and additional risks of performing APSO for the correction of concurrent sagittal-coronal deformity have yet to be adequately studied.METHODSThe authors performed a retrospective review of all ASD patients who underwent 3CO during the period from 2006 to 2019. All cases involved either isolated sagittal deformity (patients underwent standard PSO) or concurrent sagittal-coronal deformity (coronal vertical axis [CVA] ≥ 4.0 cm; patients underwent APSO). Perioperative and 2-year follow-up outcomes were compared between patients with isolated sagittal imbalance who underwent PSO and those with concurrent sagittal-coronal imbalance who underwent APSO.RESULTSA total of 390 patients were included: 338 who underwent PSO and 52 who underwent APSO. The mean patient age was 64.6 years, and 65.1% of patients were female. APSO patients required significantly more fusions with upper instrumented vertebrae (UIV) in the upper thoracic spine (63.5% vs 43.3%, p = 0.007). Radiographically, APSO patients had greater deformity with more severe preoperative sagittal and coronal imbalance: sagittal vertical axis (SVA) 13.0 versus 10.7 cm (p = 0.042) and CVA 6.1 versus 1.2 cm (p < 0.001). In APSO cases, significant correction and normalization were achieved (SVA 13.0–3.1 cm, CVA 6.1–2.0 cm, lumbar lordosis [LL] 26.3°–49.4°, pelvic tilt [PT] 38.0°–20.4°, and scoliosis 25.0°–10.4°, p < 0.001). The overall perioperative complication rate was 34.9%. There were no significant differences between PSO and APSO patients in rates of complications (overall 33.7% vs 42.3%, p = 0.227; neurological 5.9% vs 3.9%, p = 0.547; medical 20.7% vs 25.0%, p = 0.482; and surgical 6.5% vs 11.5%, p = 0.191, respectively). However, the APSO group required significantly longer stays in the ICU (3.1 vs 2.3 days, p = 0.047) and hospital (10.8 vs 8.3 days, p = 0.002). At the 2-year follow-up, there were no significant differences in mechanical complications, including proximal junctional kyphosis (p = 0.352), pseudarthrosis (p = 0.980), rod fracture (p = 0.852), and reoperation (p = 0.600).CONCLUSIONSASD patients with significant coronal imbalance often have severe concurrent sagittal deformity. APSO is a powerful and effective technique to achieve multiplanar correction without higher risk of morbidity and complications compared with PSO for sagittal imbalance. However, APSO is associated with slightly longer ICU and hospital stays.

scholarly journals Complication rates associated with open versus percutaneous pedicle screw instrumentation among patients undergoing minimally invasive interbody fusion for adult spinal deformity

2017 ◽  
Vol 43 (6) ◽  
pp. E7 ◽  
Author(s):  
Khoi D. Than ◽  
Praveen V. Mummaneni ◽  
Kelly J. Bridges ◽  
Stacie Tran ◽  
Paul Park ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Spinal Deformity ◽  
Adult Spinal Deformity ◽  
Pedicle Screws ◽  
Leg Pain ◽  
Complication Rates ◽  
Hybrid Surgery ◽  
Data Set ◽  
Surgery Group ◽  
Reoperation Rates

OBJECTIVEHigh-quality studies that compare outcomes of open and minimally invasively placed pedicle screws for adult spinal deformity are needed. Therefore, the authors compared differences in complications from a circumferential minimally invasive spine (MIS) surgery and those from a hybrid surgery.METHODSA retrospective review of a multicenter database of patients with spinal deformity who were treated with an MIS surgery was performed. Database inclusion criteria included an age of ≥ 18 years and at least 1 of the following: a coronal Cobb angle of > 20°, a sagittal vertical axis of > 5 cm, a pelvic incidence–lumbar lordosis angle of > 10°, and/or a pelvic tilt of > 20°. Patients were propensity matched according to the levels instrumented.RESULTSIn this database, a complete data set was available for 165 patients, and after those who underwent 3-column osteotomy were excluded, 137 patients were available for analysis; 76 patients remained after propensity matching (MIS surgery group 38 patients, hybrid surgery group 38 patients). The authors found no difference in demographics, number of levels instrumented, or preoperative and postoperative radiographic results. At least 1 complication was suffered by 55.3% of patients in the hybrid surgery group and 44.7% of those in the MIS surgery group (p = 0.359). Patients in the MIS surgery group had significantly fewer neurological, operative, and minor complications than those in the hybrid surgery group. The reoperation rates in both groups were similar. The most common complication category for the MIS surgery group was radiographic and for the hybrid surgery group was neurological. Patients in both groups experienced postoperative improvement in their Oswestry Disability Index and visual analog scale (VAS) back and leg pain scores (all p < 0.05); however, MIS surgery provided a greater reduction in leg pain according to VAS scores.CONCLUSIONSOverall complication rates in the MIS and hybrid surgery groups were similar. MIS surgery resulted in significantly fewer neurological, operative, and minor complications. Reoperation rates in the 2 groups were similar, and despite complications, the patients reported significant improvement in their pain and function.

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