Trial reportSpine2017
Reoperation for Recurrent Intervertebral Disc Herniation in the Spine Patient Outcomes Research Trial: Analysis of Rate, Risk Factors, and Outcome.
Trial report in Spine, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
59 citing papers in PubMed, 1 synthesis or guideline pooled it, 101 citations in OpenAlex.
- Sequesterectomy versus standard micro‑/open discectomy for lumbar disc herniation: a systematic review and meta-analysis.Neurosurgical review · 2026Pooled it
- Lumbar disc reherniation prevention with a bone-anchored annular closure device: 1-year results of a randomized trial.Medicine · 2019Trial
- Clinical performance of a bone-anchored annular closure device in older adults.Clinical interventions in aging · 2019Trial
- Return to sports after lumbar disc herniation surgery: a survey of German surgeons and postoperative patient experiences.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 · 2026Article
- Methicillin-resistantJournal of surgical case reports · 2026Article
- A single-source preoperative prediction model for recurrent lumbar disc herniation after primary discectomy: Development and internal validation in the SPORT registry.North American Spine Society journal · 2026Article
- Clinical value of a novel V-shaped annular suture under unilateral biportal endoscopy: a retrospective comparative study with the traditional I-shaped suture.Journal of orthopaedic surgery and research · 2026Article
- Complication assessment in full-endoscopic uniportal lumbar spine surgery: A prospective analysis from 304 patients.Brain & spine · 2026Article
- Mechanical and Biological Treatments for Annulus Fibrosus Repair and Closure: A Review of Clinical Studies.Neurospine · 2026Review
- Socioeconomic Implications of Recurrent Lumbar Disc Herniation: A Narrative Review.Neurospine · 2026Review
- A new hernia blocking system prevents lumbar disc herniation recurrence and disc degeneration: 2 years results of a multicentric clinical investigation.Brain & spine · 2026Article
- M2a macrophages identified as a potential therapeutic candidate for intervertebral disc herniation regression.Osteoarthritis and cartilage open · 2025Article
- A Retrospective Study of Lumbar Disk Herniation: An Analysis of Clinical Cases and Treatment Plans.Journal of clinical medicine · 2025Article
- Article
- A Primer on Anatomy, Biophysics, Pathology, Imaging and Treatment of the Intervertebral Disc and the Anterior Spinal Column: The Discogenic, Intervertebral, Spinal Column (DISC) ASPN Workgroup.Journal of pain research · 2025Article
- The long-term outcome of revision microdiscectomy for recurrent sciatica.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 · 2024Article
- Deep-Learning-Based Radiomics to Predict Surgical Risk Factors for Lumbar Disc Herniation in Young Patients: A Multicenter Study.Journal of multidisciplinary healthcare · 2024Article
- Machine Learning Predicts Recurrent Lumbar Disc Herniation Following Percutaneous Endoscopic Lumbar Discectomy.Global spine journal · 2024Article
- Factors associated with incomplete clinical improvement in patients undergoing transforaminal endoscopic lumbar discectomy for lumbar disc herniation.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 · 2023Article
- Microendoscopic Surgery for Degenerative Disorders of the Cervical and Lumbar Spine: The Influence of the Tubular Workspace on Instrument Angulation, Clinical Outcome, Complications, and Reoperation Rates.Journal of personalized medicine · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 4 institutions in 1 country.
Funding
Abstract
STUDY
designThis study was a post-hoc subgroup analysis of prospectively collected data in the Spine Patient Outcomes Research Trial (SPORT).
objectiveThe aim of this study was to determine the risk factors for and to compare the outcomes of patients undergoing revision disc excision surgery in SPORT. SUMMARY OF BACKGROUND DATA: Risk factors for reherniation and outcomes after revision surgery have not been well-studied. This information is critical for proper patient counseling and decision-making.
methodsPatients who underwent primary discectomy in the SPORT intervertebral disc herniation cohort were analyzed to determine risk factors for undergoing revision surgery. Risk factors for undergoing revision surgery for reherniation were evaluated using univariate and multivariate analysis. Primary outcome measures consisted of Oswestry Disability Index (ODI), the Sciatica Bothersomeness index (SBI), and the Short Form 36 (SF-36) at 6 weeks, 3 months, 6 months, and yearly to 4 years.
resultsOf 810 surgical patients, 74 (9.1%) received revision surgery for reherniation. Risk factors for reherniation included: younger age (hazard ratio [HR] 0.96 [0.94-0.99]), lack of a sensory deficit (HR 0.61 [0.37-0.99]) lack of motor deficit (HR 0.54 [0.32-0.91]), and higher baseline ODI score (HR 1.02 [1.01-1.03]). The time-adjusted mean improvement from baseline to 4 years was less for the reherniation group on all outcome measures (Bodily Pain Index [BP] 39.5 vs. 44.9, P = 0.001; Physical Function Index [PF] 37.1 vs. 44.5, P < 0.001; ODI 33.9 vs. 38.3, P < 0.001; SBI 8.7 vs. 10.5, P < 0.001). At 4 years, only SBI (-9 vs. -11.4, P = 0.002) was significantly lower in the reherniation group.
conclusionYounger patients with higher baseline disability without neurological deficit are at increased risk of undergoing revision surgery for reherniation. Those considering revision surgery for reherniation will likely improve significantly following surgery, but possibly not as much as with primary discectomy. LEVEL OF EVIDENCE: 3.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.