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A master's thesis from Aalborg University
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Attention Deficits Predict Pain Improvement Following Lumbar Fusion Surgery: A Case for Pre-Surgical Screening

Author

Term

4. term

Education

Publication year

2025

Submitted on

Pages

55

Abstract

Trods fremskridt i kirurgiske teknikker opnår næsten halvdelen af patienterne, der får lumbal fusionskirurgi (LFS) for kroniske lænderygsmerter, ikke en meningsfuld forbedring. Fordi smerte forstås som et bio-psyko-socialt fænomen, kan kognitive og adfærdsmæssige faktorer påvirke resultaterne, og tidligere forskning peger på en sammenhæng mellem kronisk smerte og træk ved ADHD. Denne sammenhæng er dog kun begrænset undersøgt i en behandlingskontekst. Formålet med dette studie var at undersøge, om opmærksomhedsdeficitter, målt med Adult ADHD Self-Report Scale (ASRS), er forbundet med behandlingsresistens efter LFS. Vi gennemførte et retrospektivt databasestudie af 270 tidligere LFS-patienter, som efterfølgende udfyldte ASRS. Udfald blev målt med Oswestry Disability Index (ODI) som mål for funktionsnedsættelse pga. rygsmerter og ASRS Screener (Sektion A) som mål for opmærksomhedsdeficitter; deltagerne blev kategoriseret i fire risikogrupper for ADHD. Analysen omfattede ANCOVA og multipel lineær regression justeret for køn, alder ved baseline, brug af smertemedicin, gangdistance ved baseline, baseline-ODI og antal tidligere rygoperationer. Deltagere med højere ADHD-risiko havde signifikant mindre forbedring efter LFS end dem med lavere risiko, og højere ASRS-scorer var signifikant negativt korreleret med forbedring. Modellen forklarede omkring 25% af variansen i forbedringsscorer, og resultaterne rummer usikkerhed, hvilket understreger behovet for yderligere forskning. Konklusionen er, at opmærksomhedsdeficitter er signifikant forbundet med dårligere postoperative resultater efter LFS, og at ASRS kan være nyttig til præoperativ screening og patientudvælgelse; yderligere forskning i kognitive og adfærdsmæssige faktorers betydning for kroniske smerter og behandlingsvalg er påkrævet.

Despite advances in surgical techniques, nearly half of patients undergoing lumbar fusion surgery (LFS) for chronic low back pain do not achieve meaningful improvement. Because pain is understood as a biopsychosocial phenomenon, cognitive and behavioral factors may influence outcomes, and prior work suggests links between chronic pain and ADHD traits. However, this relationship has rarely been tested in a treatment context. This study examined whether attention deficits, assessed by the Adult ADHD Self-Report Scale (ASRS), are associated with treatment resistance following LFS. We conducted a retrospective database study of 270 former LFS patients who subsequently completed the ASRS. Outcomes were measured using the Oswestry Disability Index (ODI) for back-pain–related disability and the ASRS Screener (Section A) for attention deficits; participants were categorized into four ADHD-risk groups. Statistical analyses included ANCOVA and multiple linear regression adjusted for sex, baseline age, pain medication use, baseline walking distance, baseline ODI, and the total number of prior back surgeries. Participants at higher ADHD risk showed significantly less improvement after LFS than those at lower risk, and higher ASRS scores were significantly negatively correlated with improvement. The model explained about 25% of the variance in improvement scores, and uncertainty remains, underscoring the need for further research. We conclude that attention deficits are significantly associated with poorer postoperative outcomes after LFS, and ASRS screening may support pre-surgical assessment and patient selection; more research is needed on how cognitive and behavioral domains affect chronic pain and its treatment.

[This abstract was generated with the help of AI]