Evidence map›Paper›PMID 42554724›Full record

ArticleJournal of the American Academy of Orthopaedic Surgeons. Global research & reviews2026

Patient-reported Outcomes in Primary versus Revision Cervical and Lumbar Spine Surgery: An Analysis of the Michigan Spine Surgery Improvement Collaborative.

Daniel K Park, Philip Zakko, Jad Khalil, Ilyas Aleem, Doris Tong, Geoff Kahn, Victor Chang, Kevin Taliaferro

Abstract readComparative StudyMulticenter Study
In one paragraph

Article in Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
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1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

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4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

8 authors.

Daniel K ParkFrom the Midwest Orthopedics at RUSH, Chicago, IL (Dr. Park); the Department of Orthopedics, Corewell Health, Royal Oak, MI (Dr. Zakko); the Michigan Orthopedic Surgeons, Southfield, MI (Dr. Khalil); the Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI (Dr. Aleem); the Department of Neurosurgery, Henry Ford Hospital, Detroit, MI (Dr. Tong and Dr. Chang); and the Department of Orthopedics, Henry Ford Hospital, Detroit, MI (Dr. Kahn and Dr. Taliaferro).ORCID 0000-0003-3619-2326
Philip Zakko
Jad Khalil
Ilyas Aleem
Doris Tong
Geoff Kahn
Victor Chang
Kevin Taliaferro

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo see whether there are differences between primary and revision surgeries while stratifying results by cervical and lumbar regions.

methodsMichigan Spine Surgery Improvement Collaborative is a multi-institutional quality-improvement collaborative across Michigan. The analytic sample included patients who underwent spine surgery between February 24, 2014, and January 31, 2025. Descriptive statistics were used to compare demographic characteristics and patient-reported outcomes between primary and revision procedures.

resultsA total of 49,577 patients undergoing primary lumbar surgery and 3745 undergoing revision were identified. For cervical procedures, 20,473 primary and 3281 revision cases were included. Patients undergoing revision surgery were slightly older across both spinal regions. In unadjusted analyses, revision lumbar patients consistently demonstrated worse outcomes than those undergoing primary surgery. Return to work at 1 year was lower among revision patients, and they also had markedly higher odds of opioid use and emergency department visits. In the cervical cohort, similar differences were observed. In addition, cervical revision patients demonstrated higher odds of readmission and return to the operating room. After adjusting for patient demographics, comorbidities, and surgical factors, revision surgery remained an independent predictor of worse outcomes in both spinal regions.

conclusionsRevision spine surgery is associated with worse outcomes compared with primary procedures even after adjusting for baseline risk factors. The results are consistent across cervical and lumbar revisions about pain scores, physical function, opioid use, and patient satisfaction. Opioid usage continued to be higher, while return to work was delayed for lumbar revision patients. STUDY

designRetrospective database.

Indexed as

Cervical VertebraeLumbar VertebraeOrthopedic ProceduresPatient Reported Outcome MeasuresReoperationAdultAgedFemaleHumansMaleMichiganMiddle AgedQuality ImprovementRetrospective Studies

Identifiers

PMID42554724
PMCPMC13395497

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