Evidence map›Paper›PMID 41324676›Full record

ArticleEuropean spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society2026

Thoracic ossification of the ligamentum flavum in elite athletes: a case series with surgical outcomes and return-to-play profiles.

Kinshi Kato, Kenichi Otoshi, Hiroshi Kobayashi, Kazuyuki Watanabe, Takuya Nikaido, Koji Otani, Shoji Yabuki, Yoshihiro Matsumoto

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Article in 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, 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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8 authors.

Kinshi KatoDepartment of Orthopaedic Surgery, Fukushima Medical University, Fukushima, Japan. kinshi@fmu.ac.jp.
Kenichi OtoshiDepartment of Sports Medicine, Fukushima Medical University, Fukushima, Japan.
Hiroshi KobayashiDepartment of Orthopaedic Surgery, Fukushima Medical University, Fukushima, Japan.
Kazuyuki WatanabeDepartment of Orthopaedic Surgery, Fukushima Medical University, Fukushima, Japan.
Takuya NikaidoDepartment of Orthopaedic Surgery, Fukushima Medical University, Fukushima, Japan.
Koji OtaniDepartment of Orthopaedic Surgery, Fukushima Medical University, Fukushima, Japan.
Shoji YabukiDepartment of Orthopaedic Surgery, Fukushima Medical University, Fukushima, Japan.
Yoshihiro MatsumotoDepartment of Orthopaedic Surgery, Fukushima Medical University, Fukushima, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeWe aimed to describe the clinical characteristics, diagnostic features, surgical management, and return-to-play outcomes of thoracic ossification of the ligamentum flavum (OLF) in elite athletes.

methodsTen elite athletes (mean age 31.3 [range 19-47] years) with symptomatic thoracic OLF underwent posterior decompression without fusion between 2012 and 2024. Demographic data, neurological findings, imaging characteristics, surgical details, the modified Japanese Orthopedic Association (JOA) recovery rate, and return-to-play timelines were retrospectively analyzed. The sharpened Romberg test (SRT) was performed for all patients.

resultsMyelopathy was the predominant presentation (n = 8), although symptoms were frequently unilateral and atypical. All patients showed positive Sharpened Romberg findings despite high athletic function. Lesions commonly involved the lower thoracic spine. Up to two-thirds (unilateral) or one-half (bilateral) facetectomy was required in several patients. No patients required fusion. The mean preoperative and postoperative modified JOA scores for thoracic myelopathy were 7.2 ± 1.8 and 10.2 ± 1.2, respectively (p = 0.015). The median recovery rate was 88.5% (interquartile range 78-100%). All athletes returned to sport, with baseball pitchers resuming mound activity at a mean of 10.8 weeks. Postoperative computed tomography at 1 year showed facet remodeling without OLF recurrence.

conclusionThoracic OLF can affect elite athletes and present with atypical symptoms. The SRT may assist in early detection. In our cohort, fusion was not required; anatomically precise posterior decompression without fusion appeared sufficient to enable a safe return to high-level competition.

Indexed as

Ligamentum FlavumOssification, HeterotopicReturn to SportThoracic VertebraeAdultAthletesDecompression, SurgicalFemaleHumansMaleMiddle AgedRetrospective StudiesTreatment OutcomeYoung AdultAthletesMyelopathyOssification of the ligamentum flavumRadiculopathyReturn to playThoracic spine

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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.