ArticleSpine2016
Effect of Expectations on Treatment Outcome for Lumbar Intervertebral Disc Herniation.
Article in Spine, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 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
9 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Individual recovery expectations and prognosis of outcomes in non-specific low back pain: prognostic factor review.The Cochrane database of systematic reviews · 2019Pooled it
- Nonsurgical treatment outcomes for surgical candidates with lumbar disc herniation: a comprehensive cohort study.Scientific reports · 2021Trial
- Article
- Does a relationship exist between preoperative expectations and overall satisfaction in spine surgery patients?-a prospective cohort study.Journal of spine surgery (Hong Kong) · 2023Article
- Clinical Effect of the Treatment of Lumbar Intervertebral Disc Protrusion.Applied bionics and biomechanics · 2022Article
- Surgical Timing in Lumbar Disc Herniation Surgery.Neurospine · 2020Article
- Correlation between lumbar multifidus fat infiltration and lumbar postoperative infection: a retrospective case-control study.BMC surgery · 2020Article
- International Society for the Advancement of Spine Surgery Policy 2019-Surgical Treatment of Lumbar Disc Herniation with Radiculopathy.International journal of spine surgery · 2020Article
- Lumbar disc herniation: what has the Spine Patient Outcomes Research Trial taught us?International orthopaedics · 2019Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors.
Funding
Abstract
STUDY
designSecondary analysis of randomized and nonrandomized prospective cohorts.
objectiveTo examine the effect of patient treatment expectations on treatment outcomes for patients with intervertebral disc herniation. SUMMARY OF BACKGROUND DATA: Patient expectations about treatment effectiveness may have important relationships with clinical outcomes.
methodsSubgroup and reanalysis of the Spine Patient Outcomes Research Trial, a randomized trial and comprehensive cohort study enrolling patients between March 2000 and November 2004 from 13 multidisciplinary spine clinics in 11 US states. Overall, 501 randomized and 744 observational patients (1244 total) who were surgical candidates with radiculopathy and imaging confirmed lumbar intervertebral disc herniation were enrolled. The primary study compared surgical discectomy to usual nonoperative care; this subgroup analysis reassessed outcomes on the basis of treatment expectations at baseline. Expectations about symptomatic and functional improvement for both surgery and nonoperative care were assessed on 5-point scales (1="No Chance (0%)" to 5="Certain (100%)"). Outcomes were assessed using longitudinal regression models analyzed by treatment received.
resultsAmong 1244 IDH SPORT participants, 1168 provided data on both outcomes and baseline expectations and were included in the current analysis: 467 from the randomized and 701 from the observational cohort. Low expectations of outcomes with surgery predicted poorer outcome regardless of treatment. High expectations of outcomes with nonoperative care predicted better nonoperative outcomes but did not affect surgical results. These differences were of similar magnitude to the difference in outcomes between surgery and nonoperative care.
conclusionHigh expectations of treatment benefit had clinically significant positive associations with outcomes. LEVEL OF EVIDENCE: 2.
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Registered trials
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