Oct 12–18, 2026 · 1 randomized trial, 25 new studies, 10 reviews · Spine archive · All weeks
The new Spine research The Reduction sent the week of Oct 12–18, 2026, with the week’s most recent reviews, each with a one-line summary.
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In this randomized trial of 70 patients with high-grade L5-S1 spondylolisthesis, adding S2 fixation to L4-S1 constructs gave better 36-month pain and disability scores and eliminated S1 screw breakage, though fusion rates did not differ significantly.
In cervical deformity surgery, patients with high T1 slope plus high C2 slope had global deformity, needed more extensive fusion, and gained less NDI improvement at 2 years; these slopes may flag who needs full-spine imaging.
Development of a Multivariable Prognostic Model for Risk Stratification in C1 Fractures.
In 279 C1 fractures, lateral mass displacement, dens fracture, and neurologic deficit predicted instability or surgery, and a derived risk score (AUC 0.75) outperformed the traditional 7-mm displacement threshold.
In 153 patients after spinal tumor separation surgery, early ambulation was strongly linked to faster first bowel movement, while older age and higher opioid use delayed it.
Adult Cervical Deformity: Contemporary Evaluation, Classification, and Surgical Decision-Making.
Review of adult cervical deformity: full-spine standing radiographs and alignment targets (cSVA \u226440 mm, T1S-CL <15\u00b0, CBVA \u00b110\u00b0) track outcomes; surgery carries over 50% complication rates but improves pain and quality of life in selected patients.
Endoscopic Spine Surgery: Evidence Maturity and the Path Forward in the United States.
Endoscopic spine surgery matches microscopic and tubular outcomes for lumbar disc herniation and stenosis, but cervical and thoracic evidence is thin, and US adoption is limited by learning curve, training, and reimbursement.
Sagittal Alignment in Cervical Spine Fusion: Principles, Parameters, and Surgical Implications.
Worse cervical sagittal alignment (greater T1 slope-lordosis mismatch, higher C2-C7 SVA) tracks with more disability, so fusion planning should restore alignment in context of global balance to limit imbalance and adjacent-segment disease.
Lumbar Disc Changes on Magnetic Resonance Imaging in Asymptomatic Elite Male Soccer Players.
In 43 asymptomatic elite male soccer players, 43% had lumbar disc herniations on MRI, mostly central at L4-L5 and L5-S1, and herniation burden did not track with missed training.
After multilevel anterior cervical surgery for myelopathy, dysphagia peaked early but 36% still had it at one year; baseline dysphagia, C5 level, and shorter symptom duration predicted persistence.
In 142 adults with chronic low back pain, the LL-TK index correlated moderately with sagittal vertical axis and disability and discriminated imbalance numerically better than PI-LL, though this was not formally tested; useful as a screening adjunct.
ODI, SRS-22, and COMI pain items rank chronic low back pain patients similarly but give non-interchangeable absolute scores, with or without scoliosis, so use one instrument consistently when comparing or pooling pain outcomes.
Payment Model Evolution for Spinal Fusions.
Using spinal fusion as a lens, this paper compares evolving CMS value-based payment models (BPCI-A, TEAM, ACCESS, ASM, condition-based bundles) and argues future reforms should emphasize primary care-specialist integration and patient-centered quality metrics.
In 71 AIS patients, CT-navigated fusion achieved the same Cobb correction as fluoroscopy but took longer; ICU and hospital-stay differences may reflect institutional practice rather than navigation.
In 375 adults, radiographic sarcopenia (12.8%) was associated with thoracic hyperkyphosis and cervical hyperlordosis, and with higher L4-S1 lordosis in patients with sagittal deformity, suggesting altered compensation.
An ERAS pathway with dexamethasone and liposomal bupivacaine cut opioid use after adolescent scoliosis fusion without raising protocol-related costs; the higher total cost was due to implant billing changes.
Surgeons' advice on return to sports after lumbar disc surgery varies widely, and patients in a single-center cohort resumed sports later than recommended, highlighting the need for evidence-based guidelines.
In a small retrospective study of 41 patients, spinal anesthesia with erector spinae block and sedation for biportal endoscopic lumbar decompression beat general anesthesia on pain, ambulation, hospital stay, and complications; randomized confirmation is needed.
In 116 participants, markerless motion capture agreed well with marker-based systems for trunk, pelvic, and lower-limb gait and balance measures, though transverse-plane hip, knee, and ankle rotations were poor.
In 399K single-level fusion patients, osteoporosis, anemia, depression, and substance-related disorders most strongly predicted non-infectious revision within two years; diabetes and hypertension added modest risk for mechanical failure, supporting comorbidity-based preoperative risk stratification.
Meta-analysis of adult spinal deformity fusion found proximal junctional kyphosis associated with greater postoperative thoracic kyphosis, lower lumbar lordosis, higher preoperative SVA, and lower pelvic incidence, supporting individualized alignment planning.
In 20 cervical/cervicothoracic en bloc spondylectomies for primary tumors, 15% had instrumentation failure, with small 2-rod constructs, limited proximal fixation, and cobalt-chromium rods flagged as possible risk signals in this underpowered series.
Risk factors for PJK and DJF in operatively corrected adult patients with congenital hemivertebra.
In 72 adults surgically treated for congenital hemivertebra, multiple hemivertebrae and low postoperative sacral slope predicted proximal junctional kyphosis, while larger postoperative lumbar lordosis and lumbar disc herniation predicted distal junctional failure.
Posterior cervical foraminotomy after cervical disc arthroplasty.
In 17 patients with prior same-level cervical disc arthroplasty, posterior cervical foraminotomy significantly reduced arm and neck pain without instability, though two (12%) later needed conversion to fusion.
In 506 AIS patients with major thoracic curves, higher pelvic incidence increased proximal but not distal lumbar lordosis and reduced thoracic kyphosis, suggesting high-PI patients may need more proximal lumbar rod contouring.
Cervical Chondrosarcoma: Management Strategies, Technical Considerations, and Long-Term Outcomes.
Review and two cases show en bloc resection remains the gold standard for rare cervical chondrosarcoma, lowering recurrence and mortality, though it requires multidisciplinary planning and carries high complication rates.
In 133 navigated MI-TLIF patients, dual-pin reference frame placement had a low complication rate, with new SI joint pain in only 1.5% and all complications tied to pins in the yellow or red zones.
Obstacles to Spine Surgery in Limited-Resource Environments.
Review of barriers to spine surgery in low- and middle-income countries, including limited training, costly implants and technology, and weak research capacity, with proposed solutions like fellowships, telesurgery, and international collaboration.
Narrative review of cervical spinal deformity covering etiologies, biomechanics (T1 slope, C2-7 SVA), exam findings, and imaging, concluding that individualized clinical and radiographic assessment is essential to optimize outcomes.
Scoping review of nine studies links idiopathic scoliosis with dental malocclusion, temporomandibular disorders, functional GI disorders, central precocious puberty, and hematopoietic malignancy, suggesting shared systemic pathways.
This narrative review explains why thoracolumbar burst fracture classifications lack proven prognostic value, citing unvalidated outcome measures, poor A3/A4 reliability, and omitted prognostic variables, and suggests structured criteria and machine learning to improve them.
This narrative review suggests awake lumbar spine surgery under neuraxial anesthesia may reduce prone-positioning complications (vision loss, nerve injury, pressure ulcers) and improve hemodynamic stability compared with general anesthesia.
The Cervical Intervertebral Foramen: Microanatomy, Pathology, and Clinical Implications.
Narrative review of cervical intervertebral foramen microanatomy, dynamic size changes, and degenerative pathology, aimed at helping clinicians better understand and treat nerve root compression and cervical radiculopathy.
Robot-Assisted Spine Surgery: The Pearls and Pitfalls.
Robot-assisted spine surgery offers high screw accuracy, less radiation, and better ergonomics, but surgeons must retain primary control and know platform-specific technical pitfalls and how to mitigate them.
Review linking underweight status or low BMI, along with rapid weight loss and spinal lengthening, to superior mesenteric artery syndrome after pediatric scoliosis correction, a rare but life-threatening duodenal compression complication.
Controversies in the Management of Type II Odontoid Fractures.
Management of type II odontoid fractures in the elderly remains controversial, balancing surgical risk against nonunion; stable fibrous union is increasingly accepted, and novel techniques like BMP-2 and temporary posterior fixation are under study.
Extracranial Vertebral Artery Injuries.
Review of extracranial vertebral artery injuries: trauma screening and treatment to prevent posterior circulation stroke, plus anatomy, preoperative imaging, and management of iatrogenic injury during cervical spine surgery (tamponade, ligation, repair, or endovascular).
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