Characterization of Individuals with Sacroiliac Joint Bridging in a Skeletal Population: Analysis of Degenerative Changes in Spinal Vertebrae

Imamura, Takeshi; Sawamoto, Kazunobu; Okamoto, Keishi; Maeda, Junichiro; Hiroaki, Matsuo; Wakebe, Tetsuaki; Ogami, Keiko; Manabe, Yoshitaka; Koseki, Haruhiko; Tomita, Masato; Tagami, Atsushi; Osaki, Makoto; Shindo, Hiroyuki; Tsurumoto, Toshiyuki

doi:10.1155/2014/879645

Cited by 10 publications

(11 citation statements)

References 42 publications

(39 reference statements)

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“… The specimen show bilateral sacroiliac joint bridging. The estimated age assigned to this specimen is 69 years, based on the fact that this is the average age of the presence of sacroiliac joint bridging in males found by Imamura et al () and Dar and Hershkovitz ().…”

Section: Resultsmentioning

confidence: 91%

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Differences between biological and chronological age‐at‐death in human skeletal remains: A change of perspective

Couoh

2017

American J Phys Anthropol

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TCA can be used to estimate CA and its differences with BA, being less than 10 years, are similar to those found in living populations. Differences between CA and BA are due to intra-population variability, which could be the consequence of individual differences in aging. More research is needed to have confidence that under- and overestimations of BA are indicators of aging variability at the level of the individual.

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Section: Resultsmentioning

confidence: 91%

“…A BA of about 69 years was estimated for specimen SNT/52 from the Mexican sample based upon its bilateral sacroiliac joint bridging, whose presence is considered an aging feature, predominantly in males (Dar & Hershkovitz, ; Imamura et al, ). In this case, CA was underestimated some seven years by BA.…”

Section: Resultsmentioning

confidence: 99%

Differences between biological and chronological age‐at‐death in human skeletal remains: A change of perspective

Couoh

2017

American J Phys Anthropol

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“…A regression formula was used to construct a regression line between the true age at death and average estimated age (AEA), from which we calculated the calibrated age value of the auricular surface (aCA). The difference between the aCA and the AEA was defined as the auricular surface deflection (aDEF) was the ''degenerative joint score'' (DJS) of Imamura et al (2014). These studies were carried out using the same bone specimens as those in the present study (hip joint: 200 sides; knee joint: 102 sides; lumbar spine: 42 bodies).…”

Section: Materials and Methods Materialsmentioning

confidence: 99%

Degenerative changes of the sacroiliac auricular joint surface—validation of influential factors

et al. 2016

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The purpose of this study was to clarify the relevance of degenerative changes in the sacroiliac joint (SIJ) and the joints in the lower limb and lumbar spine using age estimation methods. We also examined the shape of the auricular surface to determine the effect of degenerative changes on each joint. A total of 200 iliac auricular surfaces from 100 Japanese male skeletons were examined macroscopically in accordance with conventional methods of age estimation. From the obtained estimated age, we calculated the deflection values, which represented the degree of degenerative changes of the joints. For comparison, we used osteophyte score data of the hip, knee, and zygapophyseal joints in lumbar spines from previous studies which had used the same bone specimens. As a quantitative indicator of auricular surface morphology, we defined the constriction ratio (CR) of the auricular surface and compared the CR values obtained with various measured values. Degenerative changes in the SIJ were positively correlated with those in both the hip joint and zygapophyseal joint, but a correlation with knee joints was found only on the left side. In skeletons from individuals aged ≥60 years as time of death, the CR was significantly different between the group with high scores and those with low scores in both the hip and sacroiliac joints. It has been suggested that degenerative changes in SIJs interact with those in the hip joint and zygapophyseal joint. In addition, the shape of the auricular surface may also be a relevant factor for degenerative changes in these joints.

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“…It is important to appreciate that fusion can occur across the SIJ in the absence of fusion surgery [ 23 - 26 ]. When this occurs, bridging is typically found in specific extra-articular locations [ 24 , 25 ]. This suggests that intra-articular bridging is not a common natural mechanism for stabilization of the SIJ.…”

Section: Discussionmentioning

confidence: 99%

The Assessment of Fusion Following Sacroiliac Joint Fusion Surgery

Abbasi

Hipp²

2017

Cureus

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Sacroiliac joint fusions (SIJF) have been the subject of many research studies. The technical success of an SIJF is in part determined by whether osseous bridging occurs across the sacroiliac joint (SIJ). However, no validated SIJF assessment method has been described. Our objective was to document previously described SIJF assessment methods and define and validate a detailed assessment system for SIJF. Our results are only intended to establish computed tomography (CT)-based guidelines for SIJF to be used in a subsequent large clinical study to correlate them with clinical outcomes.The SIJF literature was reviewed to document previous descriptions of SIJF assessments. A detailed system was then developed for assessing SIJF from CT exams. To provide data that can be used to address a range of research questions, the system included assessing bridging bone relative to the SIJ anatomy, bridging bone immediately adjacent to the threaded implants crossing the joint, as well as bridging bone close to but not immediately adjacent to the implants. The system was applied to assessing SIJF from thin-slice CT exams in 19 patients 12 months following surgery. Two experienced radiologists implemented the assessment system, and in the event of a disagreement, an adjudicator was used.Most prior studies provide very little detail about how SIJF was assessed. Using the new assessment system, the agreement between the primary readers was substantial (0.67 using Gwet’s AC1 statistic). Bridging bone representing a fusion of the SIJ was identified in most patients both immediately adjacent to the threaded implants crossing the joint, as well as distant to the implants.A detailed radiographic assessment system proved to be applicable to SIJF. The assessment system includes explicit language describing the location and extent of bridging bone across the SIJ. Standardization of the assessment of the SIJFs may allow for a more meaningful comparison of data between studies.

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Characterization of Individuals with Sacroiliac Joint Bridging in a Skeletal Population: Analysis of Degenerative Changes in Spinal Vertebrae

Cited by 10 publications

References 42 publications

Differences between biological and chronological age‐at‐death in human skeletal remains: A change of perspective

Differences between biological and chronological age‐at‐death in human skeletal remains: A change of perspective

Degenerative changes of the sacroiliac auricular joint surface—validation of influential factors

The Assessment of Fusion Following Sacroiliac Joint Fusion Surgery

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