Aug 10–16, 2026 · 25 new studies, 4 reviews · Spine archive · All weeks
The new Spine research The Reduction sent the week of Aug 10–16, 2026, with the week’s most recent reviews, each with a one-line summary.
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A navigated angular guidance system (PYGT) significantly improved pedicle screw placement accuracy and reduced directional errors compared to freehand technique in scoliosis surgery, especially benefiting less experienced surgeons.
Higher preoperative RAPT scores predicted greater likelihood of home discharge and shorter hospital stay after TLIF, though not 30-day readmission, supporting its use in discharge planning.
This meta-analysis of 28 studies (4560 patients) found proximal junctional failure after adult spinal deformity surgery is predicted by sagittal malalignment and bone quality, with CT Hounsfield units showing strong diagnostic accuracy (AUC 0.86).
Global Alignment Masks Residual Segmental Malalignment in Short-Segment Lumbar Fusions.
In short-segment lumbar fusions, segmental alignment analysis reveals far more malalignment and postoperative worsening than global PI-LL measures, so surgeons should target segmental lordosis (especially at L5-S1) to avoid flatback deformity.
Over 13 years of adult spinal deformity surgery, surgical site infection rates declined after adopting LLIF and vancomycin powder and were lowest during COVID-19, though causation remains uncertain given concurrent practice changes.
Identifying the presence of disc herniations in lumbar spine MRI using Gemini 3.1 Pro.
Zero-shot testing of Gemini 3.1 Pro on lumbar MRI showed only modest, inconsistent accuracy for detecting disc herniation with a high false-positive rate, indicating it's not yet reliable for clinical screening.
A novel hybrid technique combining tubular retractors with endoscopic visualization and irrigation proved technically feasible for lumbar laminotomy in cadaveric and single clinical cases, warranting further study before wider adoption.
In octogenarians, multi-level ACDF carries higher early dysphagia risk than single-level, and advanced age itself increases early dysphagia versus younger patients, supporting proactive counseling and mitigation strategies.
In 256 patients, 4-level ACDF had higher dysphagia and 30-day ED visit rates than 3-level ACDF but comparable readmissions, surgical outcomes, and PROM improvements, suggesting extending fusion to 4 levels isn't inherently riskier.
In 261 patients with spinal cord injury from low-energy falls, those with an underlying rigid spine had longer hospital stays and higher rates of pneumonia and UTI after surgery, highlighting the need for early identification of rigid spine pathology.
A multimodal deep learning model using preoperative CT and follow-up timing predicted pedicle screw loosening after single-level lumbar fusion with high accuracy (AUC 0.823), potentially guiding postoperative monitoring.
In a propensity-matched TriNetX analysis, perioperative SGLT2 inhibitor use before ACDF was linked to fewer ED visits, lower pseudarthrosis, and reduced reoperation rates without increasing short-term complications.
The modified Clavien-Dindo-Sink grading system, mostly capturing grade II and IIIb events, may understate casting complication severity relative to surgical complications and needs modification for EOS casting.
In a large matched cohort, the previously proposed three-variable MRI model (canal diameter, foraminal stenosis, cord-lamina angle) failed to predict postoperative C5 palsy, performing no better than chance.
Detailing long-term functional morbidity after resecting mobile spine chordomas across 35 patients.
In 35 mobile spine chordoma resections, Enneking-appropriate en bloc surgery was not associated with higher rates of long-term motor weakness compared to inappropriate resection, despite similar nerve root sacrifice rates.
In cervical spine surgery patients, both C-VBQ and CT Hounsfield units correlated with DXA T-scores and each other, supporting their use as opportunistic preoperative bone quality screens alongside DXA and bone turnover markers.
Gait and EMG analysis of 148 subjects found that lumbar stenosis, adult spinal deformity, and cervical myelopathy each produce distinct, disease-specific abnormal gait and muscle activation patterns compared to healthy controls.
This meta-analysis of 20 studies shows sleep disturbances are highly prevalent before (up to 91%) and after (up to 52%) spinal surgery, driven mainly by pain and disability, supporting routine perioperative sleep screening.
Influence of endplate degeneration on fusion process in lateral lumbar interbody fusion.
In lateral lumbar interbody fusion, smoking, osteoporosis, sub-endplate trabecular sclerosis, Modic III changes, and elevated endplate Hounsfield units independently predicted incomplete fusion, aiding preoperative risk stratification.
In a prospective cohort with cervical myelopathy, adding preoperative MRS metabolite ratios (Cho/NAA, Cr/NAA, MIn/NAA) to clinical/imaging data substantially improved prediction of postoperative neurological recovery (AUC up to 0.92).
AIS patients with substance abuse history had markedly higher odds of developing new mental health disorders (especially depression), suggesting a need for targeted preoperative screening.
In AIS spinal fusion patients, replacing PCA-based opioid regimens with liposomal bupivacaine plus dexamethasone markedly cut opioid use and shortened hospital stay without worsening pain control.
A geometric/Monte Carlo model shows that radiographic spinal angle measurement uncertainty scales with landmark placement error and inversely with vertebral size, mechanistically explaining the commonly used ~5° clinical significance threshold.
Patients with highly upward-migrated lumbar disc herniation show distinct spinopelvic alignment (higher pelvic incidence and thoracic kyphosis), which may help identify this herniation subtype.
In lumbar stenosis patients treated with epidural steroid injections, greater foraminal stenosis severity (not central stenosis), younger age, higher BMI, diabetes, and more injections predicted eventual need for surgery.
This scoping review of 44 studies finds spine surgery training assessments heavily emphasize technical skills with validated tools, while nontechnical skills remain inconsistently and inadequately measured.
This review highlights how restoring segmental lumbar lordosis matched to spinopelvic anatomy during degenerative fusion surgery improves outcomes and may prevent adjacent segment disease.
This review highlights that pediatric thoracolumbar spine trauma requires a low threshold for MRI and that management decisions should be guided mainly by injury pattern and neurologic status, given limited pediatric-specific evidence.
Failure of Surgical Equipoise in Posterior Cord Syndrome Myelopathy.
Two cases show posterior cord syndrome in cervical spondylotic myelopathy failed anterior decompression but responded to posterior decompression, suggesting posterior approach should be considered when this syndrome is clinically diagnosed.
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