Rotation-related sports players demonstrate rotation-type lumbar spondylolysis fracture angle and decreased hip internal rotation range of motion

Nagamoto, Hideaki; Abe, M.; Konashi, Yu; Kimura, Rei; Takahashi, Mitsuhiro; Oizumi, Akira

doi:10.1016/j.jor.2021.11.010

Cited by 3 publications

(5 citation statements)

References 38 publications

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“…The participants were 38 patients with lumbar spondylolysis who visited our clinic for an initial visit between January 2020 and December 2021 (mean age, 15.32 ± 1.95 years; 32 boys, 6 girls, 27 at L5, 9 at L4, and 3 at L3). Inclusion criteria were as follows: patients who had computed tomography (CT) and X-ray films in the side-lying position for the initial visit, and patients with progressive or terminal stage [ 12 ]. Exclusion criteria were as follows: patients with a history of lower back pain at other hospitals, those with recurrent spondylolysis, and those with a history of orthopedic surgery.…”

Section: Methodsmentioning

confidence: 99%

“…The spondylolysis fracture angle (SFA) was measured with reference to previous studies [ 11 , 12 ] using axial view of the CT films. A previous study [ 14 ] reported that spondylolysis originates from the caudal-ventral aspect of the pars interarticularis.…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Spondylolysis fracture angle (SFA) is one of the imaging findings of spondylolysis [ 11 , 12 ]. Previous studies have reported that SFA was significantly higher in rotation-related sports than in non- rotation-related sports [ 11 , 12 ]. Sairyo et al [ 11 ] reported that the stresses applied to the pars interarticularis during movement were higher during extension and rotation, and that the stress direction was more coronal during extension than during other movements using the finite element model.…”

Section: Introductionmentioning

confidence: 99%

“…Sairyo et al [ 11 ] reported that the stresses applied to the pars interarticularis during movement were higher during extension and rotation, and that the stress direction was more coronal during extension than during other movements using the finite element model. Therefore, SFA may infer the mechanical stress that the pars interarticularis is being applied [ 11 , 12 ]. To the best of our knowledge, the characteristics of LLA, SSA, and SFA in bilateral spondylolysis compared with unilateral spondylolysis have not been clarified.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of alignment and spondylolysis fracture angle in bilateral and unilateral spondylolysis

et al. 2022

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Objectives Spondylolysis occurs bilaterally or unilaterally and bilateral spondylolysis increases the risk of developing isthmic spondylolisthesis. The characteristics of the lumbar lordosis angle (LLA), sacral slope angle (SSA), and spondylolysis fracture angle (SFA) in bilateral spondylolysis compared with those in unilateral spondylolysis have not been clarified. The purpose of this study was to compare the LLA, SSA, and SFA of bilateral and unilateral spondylolysis. Materials and methods Thirty-eight patients with lumbar spondylolysis who visited our clinic for an initial visit and 15 age-matched patients with a chief complaint of low back pain were included as controls. Computed tomography films were used to classify all spondylolysis patients into two groups: those with bilateral fractures (bilateral) and those with unilateral fractures (unilateral). The LLA and SSA were measured using lateral X-ray films and the SFA was measured using computed tomography films. Results The LLA was significantly higher in all spondylolysis patients than in the control group (p = .026). There was no significant difference in SSA between the spondylolysis and control groups (p = .28). The LLA was significantly higher in the bilateral group than in the unilateral group (p = .018). There was no significant difference in SSA between the bilateral and unilateral groups (p = .15). The SFA was significantly lower in the bilateral group than in the unilateral group (p = .024). Conclusions This study suggests that physical therapy for spondylolysis may be considered bilaterally and unilaterally.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Comparison of alignment and spondylolysis fracture angle in bilateral and unilateral spondylolysis

et al. 2022

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Prevalence of impaired foot function in baseball players with and without disabled throwing shoulder/elbow: a case–control study

Nagamoto,

Takahashi,

Okunuki

et al. 2024

Sci Rep

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Prevalence of impaired foot function among baseball players with and without a disabled throwing shoulder/elbow was investigated. The study included 138 male players. Players who had previously complained of shoulder/elbow pain during throwing motion were defined as the players with a history, and those who experienced shoulder/elbow pain during the examination were defined as having the injury. Foot function was evaluated by foot “rock paper scissors” movements and floating toes. Their prevalence was assessed and the relationships between players with and without the injuries were statistically analyzed. The prevalence of players with a history and injury was 27% and 7%, respectively. The prevalence of impaired foot function on the non-throwing side among players with injury was significantly higher than those without (60% vs. 28%, P < 0.001) and higher tendency on the throwing side than those without (60% vs. 32%). Regarding floating toes, players with a relevant history showed a significantly higher prevalence on the throwing side than those without (49% vs 28%, P < 0.001) and higher tendency on the non-throwing side than those without (49% vs 32%). Players with disabled throwing shoulder/elbow have a significantly higher prevalence of impaired foot function and floating toes than players without it.

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Lumbar Spondylolysis After Posterior Corrective Fusion for Adolescent Idiopathic Scoliosis: A Report of Two Cases and Literature Review

Nikaido,

Matsuo,

Watanabe

et al. 2025

Cureus

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Rotation-related sports players demonstrate rotation-type lumbar spondylolysis fracture angle and decreased hip internal rotation range of motion

Cited by 3 publications

References 38 publications

Comparison of alignment and spondylolysis fracture angle in bilateral and unilateral spondylolysis

Comparison of alignment and spondylolysis fracture angle in bilateral and unilateral spondylolysis

Prevalence of impaired foot function in baseball players with and without disabled throwing shoulder/elbow: a case–control study

Lumbar Spondylolysis After Posterior Corrective Fusion for Adolescent Idiopathic Scoliosis: A Report of Two Cases and Literature Review

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