Facet joint degeneration of the cervical spine: A computed tomographic analysis of 320 patients

Moon Soo Park, Yong Beom Lee, Seong Hwan Moon, Hwan Mo Lee, Tae Hwan Kim, Jong Byung Oh, K. Daniel Riew

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

STUDY DESIGN.: Retrospective study. OBJECTIVE.: To determine the frequency of facet arthrosis according to age, sex, and cervical level. In addition, we propose and evaluate a new grading system for cervical facet degeneration. SUMMARY OF BACKGROUND DATA.: Cervical facets can play an important role in symptomatology. However, there is only one computed tomographic grading system for cervical facet joints. METHODS.: From January 2003 to January 2012, 1944 patients underwent computed tomography of the cervical spine in our institution. We randomly selected 40 males and 40 females from each of the following age groups: 40 to 49, 50 to 59, 60 to 69, and 70 to 79, such that we had a total of 320 patients. We then graded the degree of arthrosis of the facet joints from C2 to C7 on the axial, sagittal, or coronal images according to 4 grades. These categories were: grade I, normal; grade II, degenerative changes including joint space narrowing, cyst formation, small osteophytes without joint hypertrophy seen; grade III, facet joint hypertrophy from large osteophytes without fusion; and grade IV, bony fusion of the facet joint. The intra-and interobserver reliabilities for the grading system were calculated using reliability statistics by intraclass correlation. RESULTS.: Facet arthrosis is common with older patients and at C2-C3, C3-C4, and C4-C5. Facet arthrosis was more common on the left side and in males. Greater than grade III facet joint arthrosis was common in patients older than 60 and at C2-C3, C3-C4, and C4-C5. The reliability statistics by intraclass correlation for the grading system was 0.878 for the intraobserver reliability and 0.869 for the interobserver reliability. CONCLUSION.: It seems that upper cervical levels are more likely to degenerate and to have more advanced degrees of degeneration than the lower cervical levels. As expected, age correlates with worsening degeneration. The proposed computed tomographic grading system for cervical facet arthrosis seemed to be reliable.

Original languageEnglish
Pages (from-to)E713-E718
JournalSpine
Volume39
Issue number12
DOIs
Publication statusPublished - 2014 May 20

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Zygapophyseal Joint
Joint Diseases
Spine
Osteophyte
Hypertrophy
Joints
Cysts
Retrospective Studies
Age Groups
Tomography

All Science Journal Classification (ASJC) codes

  • Orthopedics and Sports Medicine
  • Clinical Neurology

Cite this

Park, M. S., Lee, Y. B., Moon, S. H., Lee, H. M., Kim, T. H., Oh, J. B., & Riew, K. D. (2014). Facet joint degeneration of the cervical spine: A computed tomographic analysis of 320 patients. Spine, 39(12), E713-E718. https://doi.org/10.1097/BRS.0000000000000326
Park, Moon Soo ; Lee, Yong Beom ; Moon, Seong Hwan ; Lee, Hwan Mo ; Kim, Tae Hwan ; Oh, Jong Byung ; Riew, K. Daniel. / Facet joint degeneration of the cervical spine : A computed tomographic analysis of 320 patients. In: Spine. 2014 ; Vol. 39, No. 12. pp. E713-E718.
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abstract = "STUDY DESIGN.: Retrospective study. OBJECTIVE.: To determine the frequency of facet arthrosis according to age, sex, and cervical level. In addition, we propose and evaluate a new grading system for cervical facet degeneration. SUMMARY OF BACKGROUND DATA.: Cervical facets can play an important role in symptomatology. However, there is only one computed tomographic grading system for cervical facet joints. METHODS.: From January 2003 to January 2012, 1944 patients underwent computed tomography of the cervical spine in our institution. We randomly selected 40 males and 40 females from each of the following age groups: 40 to 49, 50 to 59, 60 to 69, and 70 to 79, such that we had a total of 320 patients. We then graded the degree of arthrosis of the facet joints from C2 to C7 on the axial, sagittal, or coronal images according to 4 grades. These categories were: grade I, normal; grade II, degenerative changes including joint space narrowing, cyst formation, small osteophytes without joint hypertrophy seen; grade III, facet joint hypertrophy from large osteophytes without fusion; and grade IV, bony fusion of the facet joint. The intra-and interobserver reliabilities for the grading system were calculated using reliability statistics by intraclass correlation. RESULTS.: Facet arthrosis is common with older patients and at C2-C3, C3-C4, and C4-C5. Facet arthrosis was more common on the left side and in males. Greater than grade III facet joint arthrosis was common in patients older than 60 and at C2-C3, C3-C4, and C4-C5. The reliability statistics by intraclass correlation for the grading system was 0.878 for the intraobserver reliability and 0.869 for the interobserver reliability. CONCLUSION.: It seems that upper cervical levels are more likely to degenerate and to have more advanced degrees of degeneration than the lower cervical levels. As expected, age correlates with worsening degeneration. The proposed computed tomographic grading system for cervical facet arthrosis seemed to be reliable.",
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Facet joint degeneration of the cervical spine : A computed tomographic analysis of 320 patients. / Park, Moon Soo; Lee, Yong Beom; Moon, Seong Hwan; Lee, Hwan Mo; Kim, Tae Hwan; Oh, Jong Byung; Riew, K. Daniel.

In: Spine, Vol. 39, No. 12, 20.05.2014, p. E713-E718.

Research output: Contribution to journalArticle

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AU - Park, Moon Soo

AU - Lee, Yong Beom

AU - Moon, Seong Hwan

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AU - Kim, Tae Hwan

AU - Oh, Jong Byung

AU - Riew, K. Daniel

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N2 - STUDY DESIGN.: Retrospective study. OBJECTIVE.: To determine the frequency of facet arthrosis according to age, sex, and cervical level. In addition, we propose and evaluate a new grading system for cervical facet degeneration. SUMMARY OF BACKGROUND DATA.: Cervical facets can play an important role in symptomatology. However, there is only one computed tomographic grading system for cervical facet joints. METHODS.: From January 2003 to January 2012, 1944 patients underwent computed tomography of the cervical spine in our institution. We randomly selected 40 males and 40 females from each of the following age groups: 40 to 49, 50 to 59, 60 to 69, and 70 to 79, such that we had a total of 320 patients. We then graded the degree of arthrosis of the facet joints from C2 to C7 on the axial, sagittal, or coronal images according to 4 grades. These categories were: grade I, normal; grade II, degenerative changes including joint space narrowing, cyst formation, small osteophytes without joint hypertrophy seen; grade III, facet joint hypertrophy from large osteophytes without fusion; and grade IV, bony fusion of the facet joint. The intra-and interobserver reliabilities for the grading system were calculated using reliability statistics by intraclass correlation. RESULTS.: Facet arthrosis is common with older patients and at C2-C3, C3-C4, and C4-C5. Facet arthrosis was more common on the left side and in males. Greater than grade III facet joint arthrosis was common in patients older than 60 and at C2-C3, C3-C4, and C4-C5. The reliability statistics by intraclass correlation for the grading system was 0.878 for the intraobserver reliability and 0.869 for the interobserver reliability. CONCLUSION.: It seems that upper cervical levels are more likely to degenerate and to have more advanced degrees of degeneration than the lower cervical levels. As expected, age correlates with worsening degeneration. The proposed computed tomographic grading system for cervical facet arthrosis seemed to be reliable.

AB - STUDY DESIGN.: Retrospective study. OBJECTIVE.: To determine the frequency of facet arthrosis according to age, sex, and cervical level. In addition, we propose and evaluate a new grading system for cervical facet degeneration. SUMMARY OF BACKGROUND DATA.: Cervical facets can play an important role in symptomatology. However, there is only one computed tomographic grading system for cervical facet joints. METHODS.: From January 2003 to January 2012, 1944 patients underwent computed tomography of the cervical spine in our institution. We randomly selected 40 males and 40 females from each of the following age groups: 40 to 49, 50 to 59, 60 to 69, and 70 to 79, such that we had a total of 320 patients. We then graded the degree of arthrosis of the facet joints from C2 to C7 on the axial, sagittal, or coronal images according to 4 grades. These categories were: grade I, normal; grade II, degenerative changes including joint space narrowing, cyst formation, small osteophytes without joint hypertrophy seen; grade III, facet joint hypertrophy from large osteophytes without fusion; and grade IV, bony fusion of the facet joint. The intra-and interobserver reliabilities for the grading system were calculated using reliability statistics by intraclass correlation. RESULTS.: Facet arthrosis is common with older patients and at C2-C3, C3-C4, and C4-C5. Facet arthrosis was more common on the left side and in males. Greater than grade III facet joint arthrosis was common in patients older than 60 and at C2-C3, C3-C4, and C4-C5. The reliability statistics by intraclass correlation for the grading system was 0.878 for the intraobserver reliability and 0.869 for the interobserver reliability. CONCLUSION.: It seems that upper cervical levels are more likely to degenerate and to have more advanced degrees of degeneration than the lower cervical levels. As expected, age correlates with worsening degeneration. The proposed computed tomographic grading system for cervical facet arthrosis seemed to be reliable.

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