Evidence map›Paper›PMID 42747593›Full record

ArticleArchives of orthopaedic and trauma surgery2026

Level-dependent changes in cervical multifidus composition following anterior cervical discectomy and fusion: bridging quantitative MRI and clinical perspectives.

Tom Folkerts, Ria Tripathi, Thomas Caffard, Bruno Verna, Jiaqi Zhu, Andrew A Sama, Frank P Cammisa, Alexander P Hughes

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Article in Archives of orthopaedic and trauma surgery, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

8 authors.

Tom FolkertsHospital for Special Surgery, New York, USA.ORCID https://orcid.org/0009-0008-6597-8348
Ria TripathiHospital for Special Surgery, New York, USA.
Thomas CaffardUniversity Hospital Ulm, Ulm, Germany.ORCID https://orcid.org/0000-0001-9468-2089
Bruno VernaHospital for Special Surgery, New York, USA.ORCID https://orcid.org/0009-0008-2823-6724
Jiaqi ZhuCenter for Biostatistics, Hospital for Special Surgery, New York, USA.
Andrew A SamaHospital for Special Surgery, New York, USA.
Frank P CammisaHospital for Special Surgery, New York, USA.
Alexander P HughesHospital for Special Surgery, New York, USA. hughesa@hss.edu.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionFatty infiltration (FI) of the cervical paraspinal muscles is associated with greater disease severity and less favorable outcomes in degenerative cervical spine disease. However, longitudinal data on whether muscle composition changes following anterior cervical discectomy and fusion (ACDF) are scarce. This study aimed to evaluate changes in FI and functional cross-sectional area (fCSA) of the cervical multifidus and rotatores after ACDF and to assess whether these changes differ across surgical levels. MATERIALS AND

methodsThis single-center retrospective study analyzed patients who underwent ACDF for degenerative cervical stenosis between 2015 and 2018. Patients were included if both preoperative and postoperative cervical spine MRI (obtained 1-5 years after surgery) were available. The multifidus and rotatores colli were segmented bilaterally on T2-weighted axial images. Measurements were categorized by position within the fusion construct as upper (most cranial fused vertebra), middle (intervening vertebrae), and lower (most caudal fused vertebra) levels. FI and fCSA were quantified using Otsu thresholding. P-values were adjusted for multiple testing using the Benjamini-Hochberg procedure.

resultsThirty-five patients met inclusion criteria (median age 58 years, 40% female, 1-4 fused levels). Bilateral FI decreased significantly at the lower level (52.1 ± 15.4% vs. 45.0 ± 14.8%, adjusted p = 0.039), with no significant changes at the upper (adjusted p = 0.858) or middle level (adjusted p = 0.354). Bilateral fCSA decreased significantly at the middle level (165.2 [119.4-196.3] vs. 109.4 [92.0-171.6] mm², adjusted p = 0.018), with no significant changes at the upper (adjusted p = 0.194) or lower level (adjusted p = 0.382)

conclusionsACDF was associated with level-dependent changes in cervical multifidus composition, including a reduction in FI at the lower surgical level and a loss of fCSA at the middle level. These findings highlight that postoperative muscle remodeling varies by position within the fusion construct, which may have implications for the development of level-specific, targeted postoperative rehabilitation strategies.

Indexed as

Cervical VertebraeDiskectomyParaspinal MusclesSpinal FusionSpinal StenosisAgedFemaleHumansMagnetic Resonance ImagingMaleMiddle AgedRetrospective StudiesAnterior cervical discectomy and fusionCervical paraspinal musclesCervical spinal stenosisFatty infiltrationMultifidusMuscle atrophyMuscle degeneration

Identifiers

PMID42747593
PMCPMC13582218

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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.