Surgical management of moderate adolescent idiopathic scoliosis with a fusionless posterior dynamic deformity correction device: interim results with bridging 5-6 disc levels at 2 or more years of follow-up.
Abstract OBJECTIVE: A posterior dynamic deformity correction (PDDC) system was used to correct adolescent idiopathic scoliosis (AIS) without fusion. The preliminary outcomes of bridging only 3-4 discs in patients with variable curve severity have previously been reported. This paper examines a subgroup of patients with the authors' proposed current indications for this device who were also treated with a longer construct. METHODS: Inclusion criteria included a single AIS structural curve between 40° and 60°, curve flexibility ≤ 30°, PDDC spanning 5-6 levels, and minimum 2-year follow-up. A retr...
Source: Journal of Neurosurgery.Spine - January 10, 2020 Category: Neurosurgery Authors: Floman Y, El-Hawary R, Millgram MA, Lonner BS, Betz RR Tags: J Neurosurg Spine Source Type: research

Letter to the Editor. Incorrect analysis of motor evoked potential efficacy for pedicle subtraction osteotomy.
PMID: 31923891 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine)
Source: Journal of Neurosurgery.Spine - January 10, 2020 Category: Neurosurgery Authors: Fournier S, Clark JP, Lieberman JA Tags: J Neurosurg Spine Source Type: research

Three-dimensional architecture of the neurovascular and adipose zones of the upper and lower lumbar intervertebral foramina: an epoxy sheet plastination study.
CONCLUSIONS: This study highlights differences of fine 3D architecture of neurovascular and adipose tissues between the upper and lower lumbar IVFs, with related effects on the transforaminal approaches. The findings may contribute to optimization of the surgical approaches to and through the IVF at different lumbar spinal levels and also may help to shorten the learning curve for the transforminal techniques. PMID: 31923892 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine)
Source: Journal of Neurosurgery.Spine - January 10, 2020 Category: Neurosurgery Authors: Xu Z, Lin G, Zhang H, Xu S, Zhang M Tags: J Neurosurg Spine Source Type: research

Letter to the Editor. The need for research prioritization in cervical myelopathy.
PMID: 31899877 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine)
Source: Journal of Neurosurgery.Spine - January 3, 2020 Category: Neurosurgery Authors: Mowforth OD, Starkey ML, Kotter MR, Davies BM Tags: J Neurosurg Spine Source Type: research

Therapeutic target for external beam x-irradiation in experimental spinal cord injury.
CONCLUSIONS: These results indicate that x-irradiation in a region rostral to the injury epicenter is optimal for recovery from SCI. This minimal target should be attractive for therapeutic application since it allows a greatly reduced target volume so that uninjured tissue is not needlessly irradiated. PMID: 31899880 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine)
Source: Journal of Neurosurgery.Spine - January 3, 2020 Category: Neurosurgery Authors: Zeman RJ, Wen X, Moorthy CR, Etlinger JD Tags: J Neurosurg Spine Source Type: research

A comparison of spinal laser interstitial thermotherapy with open surgery for metastatic thoracic epidural spinal cord compression.
Abstract OBJECTIVE: The proximity of the spinal cord to compressive metastatic lesions limits radiosurgical dosing. Open surgery is used to create safe margins around the spinal cord prior to spinal stereotactic radiosurgery (SSRS) but carries the risk of potential surgical morbidity and interruption of systemic oncological treatment. Spinal laser interstitial thermotherapy (SLITT) in conjunction with SSRS provides local control with less morbidity and a shorter interval to resume systemic treatment. The authors present a comparison between SLITT and open surgery in patients with metastatic thoracic epidural spina...
Source: Journal of Neurosurgery.Spine - January 3, 2020 Category: Neurosurgery Authors: de Almeida Bastos DC, Everson RG, de Oliveira Santos BF, Habib A, Vega RA, Oro M, Rao G, Li J, Ghia AJ, Bishop AJ, Yeboa DN, Amini B, Rhines LD, Tatsui CE Tags: J Neurosurg Spine Source Type: research

Computed tomography Hounsfield unit-based prediction of pedicle screw loosening after surgery for degenerative lumbar spine disease.
Abstract OBJECTIVE: The authors investigated the relation between Hounsfield unit (HU) values measured on CT and the risk of pedicle screw loosening in patients who underwent lumbar pedicle screw fixation for degenerative lumbar spine disease. METHODS: Patients who were treated with lumbar pedicle screw fixation between July 2011 and December 2015 at the authors' department were reviewed. Age, sex, BMI, smoking and diabetes histories, range of fixation, and fusion method were recorded as the basic patient information. The HU values for lumbar bone mineral density (BMD) for the L1, L2, L3, and L4 vertebra were...
Source: Journal of Neurosurgery.Spine - January 3, 2020 Category: Neurosurgery Authors: Zou D, Muheremu A, Sun Z, Zhong W, Jiang S, Li W Tags: J Neurosurg Spine Source Type: research

Surgery-related predictable risk factors influencing postoperative clinical outcomes for thoracic myelopathy caused by ossification of the posterior longitudinal ligament: a multicenter retrospective study.
CONCLUSIONS: It is important to identify preventable risk factors for poor surgical outcomes for T-OPLL. The findings of the present study suggest that intraoperative CSF leakage and a lower number of instrumented spinal fusion levels than decompression levels were exacerbating factors for the neurological improvement in T-OPLL surgery. PMID: 31881534 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine)
Source: Journal of Neurosurgery.Spine - December 27, 2019 Category: Neurosurgery Authors: Saiwai H, Okada S, Hayashida M, Harimaya K, Matsumoto Y, Kawaguchi KI, Kobayakawa K, Maeda T, Ohta H, Shirasawa K, Tsuchiya K, Terada K, Kaji K, Arizono T, Saito T, Fujiwara M, Iwamoto Y, Nakashima Y Tags: J Neurosurg Spine Source Type: research

Morbidity after traumatic spinal injury in pediatric and adolescent sports-related trauma.
CONCLUSIONS: Traumatic sports-related spinal injuries cause significant morbidity in the pediatric population, especially if the spinal cord is involved. The majority of TSI cases arose from cycling and contact sports accidents, underscoring the need for improving education and safety in these activities. PMID: 31881536 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine)
Source: Journal of Neurosurgery.Spine - December 27, 2019 Category: Neurosurgery Authors: Gupta S, Hauser BM, Zaki MM, Xu E, Cote DJ, Lu Y, Chi JH, Groff M, Khawaja AM, Harris MB, Smith TR, Zaidi HA Tags: J Neurosurg Spine Source Type: research

Window of opportunity for surgical decompression in patients with acute traumatic cervical spinal cord injury.
CONCLUSIONS: These findings indicate that in patients with acute cervical tSCI and AIS grades A-C, the optimal timing for SD is within the first 4-9 hours of injury, depending on the degree of SCC and the severity of injury. Further studies are required to better understand the interrelationships among the timing of SD, injury severity, and degree of SCC in these patients. PMID: 31881537 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine)
Source: Journal of Neurosurgery.Spine - December 27, 2019 Category: Neurosurgery Authors: Jug M, Kejžar N, Cimerman M, Bajrović FF Tags: J Neurosurg Spine Source Type: research

The epidemiology of spinal schwannoma in the United States between 2006 and 2014.
This article describes the epidemiology of spinal schwannoma in the United States from January 1, 2006, through December 31, 2014. METHODS: In this study, the authors utilized the Central Brain Tumor Registry of the United States, which corresponds to 100% of the American population. The Centers for Disease Control and Prevention's National Program of Cancer Registries and the National Cancer Institute's Surveillance Epidemiology and End Results program provide the resource for this data registry. The authors included diagnosis years 2006 to 2014. They used the codes per the International Coding of Diseases for Oncolo...
Source: Journal of Neurosurgery.Spine - December 27, 2019 Category: Neurosurgery Authors: Tish S, Habboub G, Lang M, Ostrom QT, Kruchko C, Barnholtz-Sloan JS, Recinos PF, Kshettry VR Tags: J Neurosurg Spine Source Type: research

Impact of knee osteoarthritis on surgical outcomes of lumbar spinal canal stenosis.
Abstract OBJECTIVE: Lumbar spinal canal stenosis (LSS) and knee osteoarthritis (KOA), both of which are age-related degenerative diseases, are independently correlated with increased pain and dysfunction of the lower extremities. However, there have been few studies that investigated whether LSS patients with KOA exhibit poor clinical recovery following lumbar spinal surgery. The aim of this study was to elucidate the surgical outcomes of lumbar spinal surgery for LSS patients with KOA using multiple health-related quality of life (HRQOL) parameters. METHODS: A total of 865 consecutive patients who underwent ...
Source: Journal of Neurosurgery.Spine - December 27, 2019 Category: Neurosurgery Authors: Ozaki M, Fujita N, Miyamoto A, Suzuki S, Tsuji O, Nagoshi N, Okada E, Yagi M, Tsuji T, Nakamura M, Matsumoto M, Kono H, Watanabe K Tags: J Neurosurg Spine Source Type: research

Upper-thoracic versus lower-thoracic upper instrumented vertebra in adult spinal deformity patients undergoing fusion to the pelvis: surgical decision-making and patient outcomes.
Abstract OBJECTIVE: Optimal patient selection for upper-thoracic (UT) versus lower-thoracic (LT) fusion during adult spinal deformity (ASD) correction is challenging. Radiographic and clinical outcomes following UT versus LT fusion remain incompletely understood. The purposes of this study were: 1) to evaluate demographic, radiographic, and surgical characteristics associated with choice of UT versus LT fusion endpoint; and 2) to evaluate differences in radiographic, clinical, and health-related quality of life (HRQOL) outcomes following UT versus LT fusion for ASD. METHODS: Retrospective review of a prospect...
Source: Journal of Neurosurgery.Spine - December 20, 2019 Category: Neurosurgery Authors: Daniels AH, Reid DBC, Durand WM, Hamilton DK, Passias PG, Kim HJ, Protopsaltis TS, Lafage V, Smith JS, Shaffrey CI, Gupta M, Klineberg E, Schwab F, Burton D, Bess S, Ames CP, Hart RA, International Spine Study Group Tags: J Neurosurg Spine Source Type: research

Percutaneous placement of lumbar pedicle screws via intraoperative CT image-based augmented reality-guided technology.
Abstract OBJECTIVE: The authors aimed to assess, in a bone-agar experimental setting, the feasibility and accuracy of percutaneous lumbar pedicle screw placements using an intraoperative CT image-based augmented reality (AR)-guided method compared to placements using a radiograph-guided method. They also compared two AR hologram alignment methods. METHODS: Twelve lumbar spine sawbones were completely embedded in hardened opaque agar, and a cubic marker was fixed on each phantom. After intraoperative CT, a 3D model of each phantom was generated, and a specialized application was deployed into an AR headset (Mi...
Source: Journal of Neurosurgery.Spine - December 20, 2019 Category: Neurosurgery Authors: Liu H, Wu J, Tang Y, Li H, Wang W, Li C, Zhou Y Tags: J Neurosurg Spine Source Type: research

Stent screw-assisted internal fixation (SAIF): clinical report of a novel approach to stabilizing and internally fixating vertebrae destroyed by malignancy.
CONCLUSIONS: SAIF provides 360° nonfusion internal fixation that stabilizes the VB in patients with extensive lytic lesions that would otherwise be challenging to treat. PMID: 31860813 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine)
Source: Journal of Neurosurgery.Spine - December 20, 2019 Category: Neurosurgery Authors: Cianfoni A, Distefano D, Scarone P, Pesce GA, Espeli V, La Barbera L, Villa T, Reinert M, Bonaldi G, Hirsch JA Tags: J Neurosurg Spine Source Type: research

Risk factors and preventive measures for C5 palsy after cervical open-door laminoplasty.
CONCLUSIONS: The position of the bony gutter may have a central role in the pathomechanism of postoperative C5 palsy, especially in patients with a narrow C5 intervertebral foramen. Making an excessively lateral bony gutter might be a cause of C5 nerve root kinking at the intervertebral foramen. To prevent the occurrence of C5 palsy, it is important to confirm the medial line of the facet joint on the preoperative CT scan, and a high-speed burr should be started from inside of the facet joint and manipulated in a direction that allows the ligamentum flavum to be identified. PMID: 31860814 [PubMed - as supplied by publ...
Source: Journal of Neurosurgery.Spine - December 20, 2019 Category: Neurosurgery Authors: Nakajima H, Kuroda H, Watanabe S, Honjoh K, Matsumine A Tags: J Neurosurg Spine Source Type: research

Spinal cord infarction with resultant paraplegia after Chiari I decompression: case report.
Abstract Paraplegia after posterior fossa surgery is a rare and devastating complication. The authors reviewed a case of paraplegia following Chiari decompression and surveyed the literature to identify strategies to reduce the occurrence of such events.An obese 44-year-old woman had progressive left arm pain, weakness, and numbness and tussive headaches. MRI studies revealed a Chiari I malformation and a cervicothoracic syrinx. Immediately postoperatively after Chiari decompression the patient was paraplegic, with a T6 sensory level bilaterally. MRI studies revealed equivocal findings of epidural hematoma at the ...
Source: Journal of Neurosurgery.Spine - December 20, 2019 Category: Neurosurgery Authors: Shah AS, Yahanda AT, Athiraman U, Tempelhoff R, Chicoine MR Tags: J Neurosurg Spine Source Type: research

Letter to the Editor. Cervical spondylotic myelopathy.
PMID: 31860821 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine)
Source: Journal of Neurosurgery.Spine - December 20, 2019 Category: Neurosurgery Authors: Goel A Tags: J Neurosurg Spine Source Type: research

Lumboperitoneal shunt surgery via lateral abdominal laparotomy.
CONCLUSIONS: In the current series, the operative duration was shorter in the lateral abdominal group compared with the anterior abdominal group, with no differences in complication rates. Lateral abdominal laparotomy simplifies LPS. PMID: 31860824 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine)
Source: Journal of Neurosurgery.Spine - December 20, 2019 Category: Neurosurgery Authors: Goto Y, Oka H, Nishii S, Takagi Y, Yokoya S, Hino A Tags: J Neurosurg Spine Source Type: research

A novel MRI-based score assessing trabecular bone quality to predict vertebral compression fractures in patients with spinal metastasis.
CONCLUSIONS: As a measure of bone quality, the novel VBQ score significantly predicted the occurrence of new VCFs in patients with spinal metastases independent of the SINS. This suggests that baseline bone quality is a crucial factor that requires assessment when evaluating these patients' conditions and that the VBQ score is a novel and simple MRI-based measure to accomplish this. PMID: 31860825 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine)
Source: Journal of Neurosurgery.Spine - December 20, 2019 Category: Neurosurgery Authors: Ehresman J, Schilling A, Pennington Z, Gui C, Chen X, Lubelski D, Ahmed AK, Cottrill E, Khan M, Redmond KJ, Sciubba DM Tags: J Neurosurg Spine Source Type: research

Perioperative complications of spine surgery in patients 80 years of age or older: a multicenter prospective cohort study.
CONCLUSIONS: To the best of the authors' knowledge, this is the first multicenter prospective all-case investigation of perioperative complications of spine surgery in elderly patients. Although decreased daily activity (ECOG-PS), instrumentation surgery, and longer operation time were associated with minor systemic complications, no major systemic complications were observed in these elderly patients. Thus, spine surgery can be safely performed in elderly patients 80 years of age or older. PMID: 31846935 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine)
Source: Journal of Neurosurgery.Spine - December 17, 2019 Category: Neurosurgery Authors: Watanabe T, Kanayama M, Takahata M, Oda I, Suda K, Abe Y, Okumura J, Hojo Y, Iwasaki N Tags: J Neurosurg Spine Source Type: research

Delayed periprosthetic collection after cervical disc arthroplasty.
Abstract Cervical disc arthroplasty is a treatment option for symptomatic cervical disc disease. There is a paucity of literature on long-term safety outcomes, durability, and device-related failure rates. The M6-C artificial cervical disc is a device with titanium alloy endplates and a complex polymeric centerpiece. To date, trials have exhibited acceptable safety profiles.This case series describes the presentation, management, and pathological findings of a delayed prevertebral periprosthetic mass anterior to the M6-C disc. Four patients at 3 different institutions underwent cervical disc replacement with the M...
Source: Journal of Neurosurgery.Spine - December 13, 2019 Category: Neurosurgery Authors: Harris L, Dyson E, Elliot M, Peterson D, Ulbricht C, Casey A Tags: J Neurosurg Spine Source Type: research

Feasibility of adjunct facial motor evoked potential monitoring to reduce the number of false-positive results during cervical spine surgery.
Abstract OBJECTIVE: False-positive intraoperative muscle motor evoked potential (mMEP) monitoring results due to systemic effects of anesthetics and physiological changes continue to be a challenging issue. Although control MEPs recorded from the unaffected side are useful for identifying a true-positive signal, there are no muscles on the upper or lower extremities to induce control MEPs in cervical spine surgery. Therefore, this study was conducted to clarify if additional MEPs derived from facial muscles can feasibly serve as controls to reduce false-positive mMEP monitoring results in cervical spine surgery. ...
Source: Journal of Neurosurgery.Spine - December 13, 2019 Category: Neurosurgery Authors: Matsuoka R, Takeshima Y, Hayashi H, Takatani T, Nishimura F, Nakagawa I, Motoyama Y, Park YS, Kawaguchi M, Nakase H Tags: J Neurosurg Spine Source Type: research

Fracture and migration of a retained microcatheter into the cauda equina after endovascular neurointervention for dural arteriovenous fistula as a rare cause of tethered spinal cord: case report.
Abstract The evaluation of spinal cord vascular malformations in neuroradiology departments remains valid for both diagnosis and endovascular embolization, and for adjuvant as well as definitive treatment. The most commonly encountered complications of endovascular approaches are the recurrence or the incomplete embolization of the lesion and accidental damage to the medullary arteries, which leads to spinal cord infarction. Failure to remember a microcatheter in the abdominal aorta after catheterization is an underestimated complication. A retained guidewire in the circulation may not necessarily cause symptoms, ...
Source: Journal of Neurosurgery.Spine - December 13, 2019 Category: Neurosurgery Authors: Demirci Otluoglu G, Hasanov T, Mert B, Toktas ZO, Konya D, Demir MK Tags: J Neurosurg Spine Source Type: research

Anterior cervical discectomy and fusion performed using structural allograft or polyetheretherketone: pseudarthrosis and revision surgery rates with minimum 2-year follow-up.
CONCLUSIONS: In 1- and 2-level ACDF with plating involving the same number of fusion levels, there was no statistically significant difference in the pseudarthrosis rate, revision surgery rate, subsidence, and lordosis loss between PEEK cages and structural allograft. PMID: 31835252 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine)
Source: Journal of Neurosurgery.Spine - December 13, 2019 Category: Neurosurgery Authors: Wang M, Chou D, Chang CC, Hirpara A, Liu Y, Chan AK, Pennicooke B, Mummaneni PV Tags: J Neurosurg Spine Source Type: research

Characteristics and management of pain in patients with Klippel-Feil syndrome: analysis of a global patient-reported registry.
Abstract OBJECTIVE: Klippel-Feil syndrome (KFS) is characterized by congenital fusion of the cervical vertebrae. Due to its rarity, minimal research has been done to assess the quality and management of pain associated with this disorder. Using a large global database, the authors report a detailed analysis of the type, location, and treatment of pain in patients with KFS. METHODS: Data were obtained from the Coordination of Rare Diseases at Stanford registry and Klippel-Feil Syndrome Freedom registry. The cervical fusions were categorized into Samartzis type I, II, or III. The independent-sample t-test, Wilc...
Source: Journal of Neurosurgery.Spine - December 13, 2019 Category: Neurosurgery Authors: Patel K, Evans H, Sommaruga S, Vayssiere P, Qureshi T, Kolb L, Fehlings MG, Cheng JS, Tessitore E, Schaller K, Nouri A Tags: J Neurosurg Spine Source Type: research

Back "pane" secondary to glass coffee table mishap: case illustration.
Back "pane" secondary to glass coffee table mishap: case illustration. J Neurosurg Spine. 2019 Dec 13;:1-2 Authors: Mercure-Cyr R, Fourney DR PMID: 31835255 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine)
Source: Journal of Neurosurgery.Spine - December 13, 2019 Category: Neurosurgery Authors: Mercure-Cyr R, Fourney DR Tags: J Neurosurg Spine Source Type: research

Anterior cervical discectomy and fusion requiring resection of the superior horn of thyroid cartilage: case report.
Abstract Anterior cervical discectomy and fusion (ACDF) is the most common surgical procedure utilized for degenerative diseases of the cervical spine. The authors present the case of a 64-year-old man who underwent an ACDF for degenerative changes causing cervical stenosis with myelopathy. The patient's symptoms consisted of pain and weakness of the bilateral upper extremities that slowly progressed over 1.5 years. During the procedure, the superior horn of the thyroid cartilage impeded proper retraction, preventing adequate visualization due to its prominent size. At this point, otorhinolaryngology was consulted...
Source: Journal of Neurosurgery.Spine - December 6, 2019 Category: Neurosurgery Authors: O'Connor KP, Smitherman AD, Palejwala AH, Krempl GA, Martin MD Tags: J Neurosurg Spine Source Type: research

Awake C1-2 laminectomy, instrumentation, and fusion: case report.
ont C Abstract Surgery of the cervical spine under conscious sedation has been rarely reported in the literature. The main indications are the lack of neurophysiological monitoring and surgery in patients with high cardiovascular risk. To date, no reports of awake C1-2 instrumentation have been published in the English-language literature. The authors present the case of a 76-year-old patient with multiple myeloma and severe cardiomyopathy associated with primary amyloidosis who experienced severe myelopathy from a C2 pseudotumor associated with an odontoid fracture. Due to his high cardiovascular risk, the patien...
Source: Journal of Neurosurgery.Spine - December 6, 2019 Category: Neurosurgery Authors: Barrenechea IJ, Márquez L, Rojas HP, Nicola M, Dumont C Tags: J Neurosurg Spine Source Type: research

Predictors of nonroutine discharge among patients undergoing surgery for grade I spondylolisthesis: insights from the Quality Outcomes Database.
Abstract OBJECTIVE: Discharge to an inpatient rehabilitation facility or another acute-care facility not only constitutes a postoperative challenge for patients and their care team but also contributes significantly to healthcare costs. In this era of changing dynamics of healthcare payment models in which cost overruns are being increasingly shifted to surgeons and hospitals, it is important to better understand outcomes such as discharge disposition. In the current article, the authors sought to develop a predictive model for factors associated with nonroutine discharge after surgery for grade I spondylolisthesi...
Source: Journal of Neurosurgery.Spine - December 6, 2019 Category: Neurosurgery Authors: Mummaneni PV, Bydon M, Knightly J, Alvi MA, Goyal A, Chan AK, Guan J, Biase M, Strauss A, Glassman S, Foley KT, Slotkin JR, Potts E, Shaffrey M, Shaffrey CI, Haid RW, Fu KM, Wang MY, Park P, Asher AL, Bisson EF Tags: J Neurosurg Spine Source Type: research

Validation of the recently developed Total Disability Index: a single measure of disability in neck and back pain patients.
CONCLUSIONS: The TDI is a valid and reliable disability measure in patients with back and/or neck pain and can capture each spine region's contribution to total disability. The TDI could be a valuable method for total spine assessment in a clinical setting, and its completion is less time consuming than that for both the ODI and NDI. PMID: 31812146 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine)
Source: Journal of Neurosurgery.Spine - December 6, 2019 Category: Neurosurgery Authors: Cruz DL, Ayres EW, Spiegel MA, Day LM, Hart RA, Ames CP, Burton DC, Smith JS, Shaffrey CI, Schwab FJ, Errico TJ, Bess S, Lafage V, Protopsaltis TS Tags: J Neurosurg Spine Source Type: research

History and advances in spinal neurosurgery.
Abstract Insight into the historic contributions made to modern-day spine surgery provides context for understanding the monumental accomplishments comprising current techniques, technology, and clinical success. Only during the last century did surgical growth occur in the treatment of spinal disorders. With that growth came a renaissance of innovation, particularly with the evolution of spinal instrumentation and fixation techniques. In this article, the authors capture some of the key milestones that have led to the field of spine surgery today, with an emphasis on the historical advances related to instrumenta...
Source: Journal of Neurosurgery.Spine - December 1, 2019 Category: Neurosurgery Authors: Walker CT, Kakarla UK, Chang SW, Sonntag VKH Tags: J Neurosurg Spine Source Type: research

Kambin's triangle: definition and new classification schema.
ng MY Abstract Kambin's triangle is an anatomical corridor used to access critical structures in a variety of spinal procedures. It is considered a safe space because it is devoid of vascular and neural structures of importance. Nonetheless, there is currently significant variation in the literature regarding the exact dimensions and anatomical borders of Kambin's triangle. This confusion was originally caused by leaving the superior articular process (SAP) unassigned in the description of the working triangle, despite Kambin identifying that structure in his original report. The SAP is the most relevant structure...
Source: Journal of Neurosurgery.Spine - November 29, 2019 Category: Neurosurgery Authors: Fanous AA, Tumialán LM, Wang MY Tags: J Neurosurg Spine Source Type: research

Rod fracture after multiple-rod constructs for adult spinal deformity.
CONCLUSIONS: RF occurred in 11.8% of patients with MRCs after ASD surgery. Most RFs occurred at the lumbosacral junction or adjacent level (77%). Interbody fusion at the lumbosacral junction (L5-S1 or L4-S1 level) could significantly prevent the occurrence of RF after MRCs for ASD. PMID: 31783347 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine)
Source: Journal of Neurosurgery.Spine - November 29, 2019 Category: Neurosurgery Authors: Jung JM, Hyun SJ, Kim KJ, Jahng TA Tags: J Neurosurg Spine Source Type: research

Tractography-based surgical strategy for cavernoma of the conus medullaris: case illustration.
PMID: 31783348 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine)
Source: Journal of Neurosurgery.Spine - November 29, 2019 Category: Neurosurgery Authors: Dauleac C, Frindel C, Cotton F, Pelissou-Guyotat I Tags: J Neurosurg Spine Source Type: research

Spine radiosurgery in adolescents and young adults: early outcomes and toxicity in patients with metastatic Ewing sarcoma and osteosarcoma.
CONCLUSIONS: SRS for spine metastases from Ewing sarcoma and osteosarcoma can be considered as a treatment option in AYA patients and is associated with acceptable toxicity rates. Further studies must be conducted to determine long-term local control and toxicity for this treatment modality. PMID: 31783349 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine)
Source: Journal of Neurosurgery.Spine - November 29, 2019 Category: Neurosurgery Authors: Parsai S, Juloori A, Angelov L, Scott JG, Krishnaney AA, Udo-Inyang I, Zhuang T, Qi P, Kolar M, Anderson P, Zahler S, Chao ST, Suh JH, Murphy ES Tags: J Neurosurg Spine Source Type: research

Multiple paraspinal intramuscular myxomas: case report.
Abstract Intramuscular myxomas (IMMs) are rare benign tumors of mesenchymal origin that are most often located in large skeletal muscles, particularly of the thigh. They have also been reported within the paraspinal musculature and should be considered in the differential diagnosis of a paraspinal mass. These lesions can cause neurological symptoms due to mass effect. This is a report of a 52-year-old man with multiple paraspinal tumors that exhibited concerning growth on serial imaging studies. To the authors' knowledge, this represents the first report of a patient with multiple paraspinal myxomas. CT-guided bio...
Source: Journal of Neurosurgery.Spine - November 29, 2019 Category: Neurosurgery Authors: Domino JS, Weindel S, Woodrow S Tags: J Neurosurg Spine Source Type: research

The "kickstand rod" technique for correction of coronal imbalance in patients with adult spinal deformity: initial case series.
CONCLUSIONS: The kickstand rod technique is safe and effective for the correction of CI in spinal deformity patients. This technique was found to provide marked coronal correction and additional strength to the overall construct without significant adverse consequences. PMID: 31783351 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine)
Source: Journal of Neurosurgery.Spine - November 29, 2019 Category: Neurosurgery Authors: Makhni MC, Zhang Y, Park PJ, Cerpa M, Yang M, Pham MH, Sielatycki JA, Beauchamp EC, Lenke LG Tags: J Neurosurg Spine Source Type: research

Letter to the Editor. Lumbar fusion.
PMID: 31783352 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine)
Source: Journal of Neurosurgery.Spine - November 29, 2019 Category: Neurosurgery Authors: Goel A Tags: J Neurosurg Spine Source Type: research

Using machine learning to predict 30-day readmissions after posterior lumbar fusion: an NSQIP study involving 23,264 patients.
CONCLUSIONS: Machine learning and artificial intelligence are powerful tools with the ability to improve understanding of predictive metrics in clinical spine surgery. The authors' model was able to predict those patients who would not require readmission. Similarly, the majority of predicted readmissions (up to 60%) were predicted by the model while retaining a 0% false-positive rate. Such findings suggest a possible need for reevaluation of the current Hospital Readmissions Reduction Program penalties in spine surgery. PMID: 31783353 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine)
Source: Journal of Neurosurgery.Spine - November 29, 2019 Category: Neurosurgery Authors: Hopkins BS, Yamaguchi JT, Garcia R, Kesavabhotla K, Weiss H, Hsu WK, Smith ZA, Dahdaleh NS Tags: J Neurosurg Spine Source Type: research

Is there a difference in the grade of degeneration at the cervical spine following anterior cervical fusion with respect to clinical outcome, diagnosis, and repeat procedure? An MRI study of 102 patients with a mean follow-up of 25 years.
CONCLUSIONS: No significant differences were seen in the SDI grade and SSA with respect to clinical outcome. The SDI is higher after single-level ACDF and with the diagnosis of CDH. The DH was negligibly different with respect to clinical outcome, diagnosis, and number of operated levels. PMID: 31783354 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine)
Source: Journal of Neurosurgery.Spine - November 29, 2019 Category: Neurosurgery Authors: Burkhardt BW, Simgen A, Wagenpfeil G, Hendrix P, Dehnen M, Reith W, Oertel JM Tags: J Neurosurg Spine Source Type: research

Development of pulmonary endovascular metastases following vertebroplasty: case report.
Abstract A 69-year-old man developed pulmonary metastases following vertebroplasties for pathological fractures of vertebrae T12-L4. The fractures developed due to spinal metastases from castrate-resistant prostate cancer. A CT scan performed 1 month prior indicated no evidence of pulmonary malignancy. However, CT scans performed 2 months after the vertebroplasties demonstrated intravascular pulmonary metastases distributed similarly to embolized polymethylmethacrylate. Vertebroplasty is a well-established procedure for symptomatic management of vertebral compression fractures. However, studies have demonstrated a...
Source: Journal of Neurosurgery.Spine - November 29, 2019 Category: Neurosurgery Authors: Mercer J, Lam ACL, Smith R, Fallah-Rad N, Kavanagh J Tags: J Neurosurg Spine Source Type: research

Readmission after spinal epidural abscess management in urban populations: a bi-institutional study.
CONCLUSIONS: The most common indication for readmission was persistent infection. Readmission was unrelated to baseline neurological status or management strategy. However, both hepatic disease and baseline immunosuppression significantly increased the odds of 90-day readmission after SEA treatment. Patients with these conditions may require closer follow-up upon discharge to reduce overall morbidity and hospital costs associated with SEA. PMID: 31756697 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine)
Source: Journal of Neurosurgery.Spine - November 22, 2019 Category: Neurosurgery Authors: Longo M, Pennington Z, Gelfand Y, De la Garza Ramos R, Echt M, Ahmed AK, Yanamadala V, Sciubba DM, Yassari R Tags: J Neurosurg Spine Source Type: research

Instrumented surgical treatment for metastatic spinal tumors: is fusion necessary?
Abstract OBJECTIVE: The goal of this study was to evaluate the radiographic and clinical results of instrumentation surgery without fusion for metastases to the spine. METHODS: Between 2010 and 2017, patients with spinal tumors who underwent instrumentation without fusion surgery were consecutively evaluated. Preoperative and postoperative clinical data were evaluated. Data were inclusive for last follow-up and just prior to death if the patient died. Instrumentation-related complications included screw migration, screw or rod breakage, cage migration, and screw loosening. RESULTS: Excluding patients who...
Source: Journal of Neurosurgery.Spine - November 22, 2019 Category: Neurosurgery Authors: Park SJ, Lee KH, Lee CS, Jung JY, Park JH, Kim GL, Kim KT Tags: J Neurosurg Spine Source Type: research

Predictors of patient dissatisfaction at 1 and 2 years after lumbar surgery.
Abstract OBJECTIVE: As compensation transitions from a fee-for-service to pay-for-performance healthcare model, providers must prioritize patient-centered experiences. Here, the authors' primary aim was to identify predictors of patient dissatisfaction at 1 and 2 years after lumbar surgery. METHODS: The Michigan Spine Surgery Improvement Collaborative (MSSIC) was queried for all lumbar operations at the 1- and 2-year follow-ups. Predictors of patients' postoperative contentment were identified per the North American Spine Surgery (NASS) Patient Satisfaction Index, wherein satisfied patients were assigned a sc...
Source: Journal of Neurosurgery.Spine - November 22, 2019 Category: Neurosurgery Authors: Macki M, Alvi MA, Kerezoudis P, Xiao S, Schultz L, Bazydlo M, Bydon M, Park P, Chang V, MSSIC Investigators Tags: J Neurosurg Spine Source Type: research

Detection and treatment of a spinal dural arteriovenous fistula supplied by a radiculomedullopial artery: case illustration.
ve; G PMID: 31756703 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine)
Source: Journal of Neurosurgery.Spine - November 22, 2019 Category: Neurosurgery Authors: Gioppo A, Acerbi F, Faragò G Tags: J Neurosurg Spine Source Type: research

Customized anterior craniocervical reconstruction via a modified high-cervical retropharyngeal approach following resection of a spinal tumor involving C1-2/C1-3.
Abstract OBJECTIVE: The surgical treatment of an upper cervical spinal tumor (UCST) at C1-2/C1-3 is challenging due to anterior exposure and reconstruction. Limited information has been published concerning the effective approach and reconstruction for an anterior procedure after C1-2/C1-3 UCST resection. The authors attempted to introduce a novel, customized, anterior craniocervical reconstruction between the occipital condyles and inferior vertebrae through a modified high-cervical retropharyngeal approach (mHCRA) in addressing C1-2/C1-3 spinal tumors. METHODS: Seven consecutive patients underwent 2-stage U...
Source: Journal of Neurosurgery.Spine - November 22, 2019 Category: Neurosurgery Authors: He S, Ye C, Zhong N, Yang M, Yang X, Xiao J Tags: J Neurosurg Spine Source Type: research

Characteristics of false-positive alerts on transcranial motor evoked potential monitoring during pediatric scoliosis and adult spinal deformity surgery: an "anesthetic fade" phenomenon.
Characteristics of false-positive alerts on transcranial motor evoked potential monitoring during pediatric scoliosis and adult spinal deformity surgery: an "anesthetic fade" phenomenon. J Neurosurg Spine. 2019 Nov 22;:1-9 Authors: Ushirozako H, Yoshida G, Hasegawa T, Yamato Y, Yasuda T, Banno T, Arima H, Oe S, Yamada T, Ide K, Watanabe Y, Kurita T, Matsuyama Y Abstract OBJECTIVE: Transcranial motor evoked potential (TcMEP) monitoring may be valuable for predicting postoperative neurological complications with a high sensitivity and specificity, but one of the most frequent problems is the h...
Source: Journal of Neurosurgery.Spine - November 22, 2019 Category: Neurosurgery Authors: Ushirozako H, Yoshida G, Hasegawa T, Yamato Y, Yasuda T, Banno T, Arima H, Oe S, Yamada T, Ide K, Watanabe Y, Kurita T, Matsuyama Y Tags: J Neurosurg Spine Source Type: research

Posterior foraminotomy versus anterior decompression and fusion in patients with cervical degenerative disc disease with radiculopathy: up to 5 years of outcome from the national Swedish Spine Register.
CONCLUSIONS: In patients with cervical degenerative disc disease and radiculopathy, both groups demonstrated clinical improvements at the 5-year follow-up that were comparable and did not achieve a clinically important difference from one another, even though the reoperation rate favored the ACDF group. This study design obtains population-based results, which are generalizable. PMID: 31731263 [PubMed - as supplied by publisher] (Source: Journal of Neurosurgery.Spine)
Source: Journal of Neurosurgery.Spine - November 15, 2019 Category: Neurosurgery Authors: MacDowall A, Heary RF, Holy M, Lindhagen L, Olerud C Tags: J Neurosurg Spine Source Type: research

Outpatient anterior cervical discectomy and fusion in the ambulatory surgery center setting: safety assessment for the Medicare population.
CONCLUSIONS: An analysis of consecutive Medicare patients (American Society of Anesthesiologists classes I-III) who underwent mostly 1-level and some 2-level ACDFs in an ASC setting demonstrates that surgical complications occur at a low rate with a safety profile similar to that reported for both inpatient ACDF and patients younger than 65 years. In an effort to reduce cost and improve efficiency of care, surgeons can safely perform ACDF in the Medicare population in an ASC environment utilizing patient selection criteria and perioperative management similar to those reported here. PMID: 31731271 [PubMed - as supplie...
Source: Journal of Neurosurgery.Spine - November 15, 2019 Category: Neurosurgery Authors: Rossi V, Asher A, Peters D, Zuckerman SL, Smith M, Henegar M, Dyer H, Coric D, Pfortmiller D, Adamson T, McGirt M Tags: J Neurosurg Spine Source Type: research