Is radiographic lumbar spondylolisthesis associated with occupational exposures? Findings from a nested case control study within the Wakayama spine study

Ishimoto, Yuyu; Cooper, Cyrus; Ntani, Georgia; Yamada, Hiroshi; Hashizume, Hiroshi; Nagata, Keiji; Muraki, Shigeyuki; Tanaka, Sakae; Yoshida, Munehito; Yoshimura, Nagahisa; Walker‐Bone, Karen

doi:10.1186/s12891-019-2994-1

Cited by 10 publications

(11 citation statements)

References 29 publications

(43 reference statements)

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“…This was also consistent with the observations of Ishimoto et al These authors showed that people under 75 years of age were less likely to develop spondylolisthesis if they climbed up stairs and slopes (≥1 h/day). Similarly, in the older group (≥75 years), walks of ≥3 km/day were a protective factor against a slip, in contrast to the observations of Denard et al [ 33 ]. It is worth noting that in the study by Denard et al, daily walking was a risk factor for a listhesis [ 9 ].…”

Section: Risk Factorscontrasting

confidence: 77%

“…In this case, patients who reported occupational driving for ≥4 h/day were more than two times more likely to develop spondylolisthesis. The situation was similar in the group of people aged ≥75 years who reported sedentary work for ≥2 h/day [ 33 ]. Additionally, some authors suggested a role of whole-body vibration, to which vehicle drivers were exposed as the main mechanism influencing the pathogenesis of a slip [ 71 , 72 , 73 ].…”

Section: Risk Factorsmentioning

confidence: 64%

“…This issue was also studied by Ischimoto et al using observations of Japanese adults from the Wakayama Spine Study. The authors demonstrated that among people under the age of 75, the most important risk factor for the occurrence of slip was work in the agricultural/fishing industries, which was associated with a 3 times greater risk of this type of change [ 33 ]. Similar conclusions were shown in the observations of other authors [ 67 , 68 , 69 , 70 ].…”

Section: Risk Factorsmentioning

confidence: 99%

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Factors Predisposing to The Formation of Degenerative Spondylolisthesis—A Narrative Review

et al. 2023

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The relationship between various factors predisposing to the formation of spondylolisthesis, including degenerative spondylolisthesis, has been analyzed by many authors. However, not all observations are consistent. In this review, we identified factors whose impact on the prevalence of spondylolisthesis was most often mentioned in the literature. These included gender, age, bone mineral density, ethnic origin, and oophorectomy. The results were inclusive in terms of physical activity, pregnancy status, and use of hormone replacement therapy. Associations between diabetes and smoking were very poorly marked. The literature so far has identified a number of factors significantly affecting the incidence of degenerative spondylolisthesis. These include age, gender, body weight, ethnic origin, bone mineral density, and hormonal balance. Radiological parameters, which include iliac crest, pelvic tilt, pelvic incidence, sacral slope, and lumbar lordosis, may also be of great importance for assessing changes in the occurrence and progression. However, the authors do not agree on the real significance of individual factors. The aim of this review was to identify the factors predisposing to the formation of degenerative spondylolisthesis, the importance of which has been suggested in the current literature. The systematization of knowledge in this field can allow a more accurate adjustment of the treatment plan for each patient affected by this condition.

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Section: Risk Factorscontrasting

confidence: 77%

Section: Risk Factorsmentioning

confidence: 64%

Section: Risk Factorsmentioning

confidence: 99%

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Factors Predisposing to The Formation of Degenerative Spondylolisthesis—A Narrative Review

et al. 2023

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“…This increased incidence is mainly attributed to the repetitive shear forces of hyperextension positions and the poor mechanics and alignment often used by young dancers to obtain their positions. Ishimoto et al [17] found, in a nested case-control study (722 vs. 605, mean age 70), that occupational driving and working in the agricultural/fishing industry were associated with radiographic spondylolisthesis (Odds ratio: 2.4 and 3.5, respectively). We indeed found a difference in the incidence rate between CU (1.8%) to AU (1%) and MU (0.8%), but those differences were not statistically significant.…”

Section: Discussionmentioning

confidence: 99%

Occupational influences on Spondylolysis and Spondylolisthesis in a cohort of 18-year-old male military conscripts

Zack

Barak

Finestone

et al. 2020

BMC Musculoskelet Disord

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Background The reported prevalence of spondylolysis (SL) in the adult population is 6–7%. Data concerning adolescent-onset spondylolisthesis (SLS) and the impact of certain activities on it is scarce. We examined the risk of clinical progression of SL and SLS as a function of primary severity and occupational strain among military recruits. Methods Based on the Israel defense Force (IDF) central human resources database, we identified 1521 18-year-old males inducted to the IDF with SL/SLS between the late nineteen nineties and early two-thousands. We followed changes in the SL/SLS status during the 3 years of obligatory military service. Disease severity was classified as Cat2: radiological findings of SL without clinical findings; Cat3: painful SL or asymptomatic grade 1 SLS; Cat4: grade 1 SLS with pain; Cat5: Grade 2 SLS. The soldiers were subdivided into the following occupational categories: administrative, combat, maintenance, and driving. The purpose was to compare the progression rates in different medical categories and job assignments. Results There were 162 recruits in Cat2, 961 in Cat3, and 398 recruits in Cat4. The overall progression rate to Cat5 (grade 2 SLS) was 1.02%. Significant progression rates were seen amongst administrative soldiers with a relatively higher risk of progression from Cat4 (painful-grade-1 SLS: 2.2%) vs. Cat3 (asymptomatic SLS: 0.5%, relative risk = 4.7, p < 0.02). Other occupational categories did not exhibit significant progression rates. Conclusion Progression of SL/SLS was highest in Cat4, i.e. for recruits already diagnosed with painful SLS (i.e. with a more severe baseline disorder). Progression did not correlate with military occupation. We recommend further follow-up studies that include, aside from progression rates, incidence rates of newly diagnosed grade 2 SL during military service.

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“…However, agricultural and fishing industries had over 3-fold more spondylolisthesis cases than clerical and technical expertise. This association disappeared among those aged > 75 years [ 34 ]. We considered it inappropriate to limit fishers' lumbar burden to heavy lifting working time.…”

Section: Discussionmentioning

confidence: 99%

Characteristics of lumbar disc degeneration and risk factors for collapsed lumbar disc in Korean farmers and fishers

Hong

Lee

Song

2021

Ann Occup Environ Med

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Background Few studies have investigated the risk factors for lumbar intervertebral disc degeneration among hard physical workers involved in heavy lifting. In this study, we aimed to identify the characteristics of lumbar intervertebral disc degeneration and evaluate the relationship between collapsed lumbar disc and potential risk factors in farmers and fishers. Methods This study included 203 farmers (103 men and 100 women) and 166 fishers (95 men and 71 women) aged 40–69 years who had undergone lumbar magnetic resonance imaging and were enrolled in the Korea Farmer's Knee Cohort and the Jeonnam Fishers' Cohort. We evaluated each of the 5 lumbar discs using the Pfirrmann grading system and classified collapsed lumbar intervertebral disc (cLD) as a case with ≥ 1 grade 5 at any disc level. We investigated potential risk factors, such as gender, age, body mass index (BMI), working hours per day, working months per year, and cumulative heavy lifting working time (CLWT). The odds ratios (ORs) and their corresponding 95% confidence intervals (CIs) were calculated. Results The prevalence of cLD was 19.8% (23.7% among fishers, 21.2% among fishers with farming, and 17.2% among farmers). cLD correlated with factors such as age and occupation. Gender, CLWT and the working time matrix were not significantly associated with cLD. The OR of cLD adjusted by gender, age, BMI, and working time matrix was 1.26 (95% CI: 0.69–2.30) for ≥ 5,000 hours CLWT compared to that for < 2,000 hours CLWT. The OR of cLD adjusted by gender, age, BMI, CLWT, and working time matrix was 2.08 (95% CI: 1.06–4.06) for fishers compared to that for farmers. Conclusions Heavy lifting did not show a significant association with cLD in farmers and fishers. However, there is possibility that fishers are at a higher risk of lumbar disc collapse than farmers.

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Is radiographic lumbar spondylolisthesis associated with occupational exposures? Findings from a nested case control study within the Wakayama spine study

Cited by 10 publications

References 29 publications

Factors Predisposing to The Formation of Degenerative Spondylolisthesis—A Narrative Review

Factors Predisposing to The Formation of Degenerative Spondylolisthesis—A Narrative Review

Occupational influences on Spondylolysis and Spondylolisthesis in a cohort of 18-year-old male military conscripts

Characteristics of lumbar disc degeneration and risk factors for collapsed lumbar disc in Korean farmers and fishers

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