Abstract
The lateral atlantoaxial joints contain folds of synovium termed meniscoids that may potentially contribute to cervical spine pain; however, the anatomy of these structures has not been comprehensively investigated. The purpose of this study was to explore the morphology and morphometry of lateral atlantoaxial joint meniscoids. Twelve cadaveric hemi-spines (6 female; 6 left; mean 81.5 years, SD 7.3) were obtained for dissection and disarticulation of the lateral atlantoaxial joints. Meniscoids were identified and measurements made of surface area, length, and surrounding articular cartilage degeneration. Tissue was sectioned sagittally, stained with hematoxylin and eosin, and examined by light microscopy. Data were analyzed descriptively and using nonparametric techniques. Ventral and dorsal meniscoids (24 in total) were found in each joint, and could be classified histologically into adipose (32 %), fibrous (41 %), and fibroadipose (27 %) meniscoids. No significant associations were found between meniscoid size and age, histology, cartilage degeneration, or joint position. Meniscoid length in males was significantly greater than in females (P = 0.04). Fibrous meniscoids were noted to be associated with articular cartilage degeneration, and adipose and fibroadipose meniscoids with intact cartilage (P = 0.05). Fibrous meniscoids tended to be located dorsally (78 %), whereas adipose meniscoids were mostly located ventrally (86 %). Distinct patterns in lateral atlantoaxial joint meniscoid morphology were observed, including the association of fibrous meniscoid composition with dorsal joint position and articular cartilage degeneration. The clinical significance of these patterns remains uncertain, and further research is needed to examine these structures across the lifespan and in cervical pathology.
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Akhavan A, Merguerian P, Grady R, Disandro M, Shnorhavorian M (2014) Digital photographic measurement in hypospadias: validation and comparison to intraoperative measurement. J Paediatr Urol 10:312–316
Aprill C, Axinn M, Bogduk N (2002) Occipital headaches stemming from the lateral atlanto-axial (C1–2) joint. Cephalalgia 22:15–22
Barr A, Barbe M, Clark B (2004) Work-related musculoskeletal disorders of the hand and wrist: epidemiology, pathophysiology, and sensorimotor changes. J Orthop Sports Phys Ther 34:610–627
Bogduk N (2001) Cervicogenic headache: anatomic basis and pathophysiologic mechanisms. Curr Pain Headache Rep 5:382–386
Bogduk N (2005) Clinical anatomy of the lumbar spine and sacrum. Elsevier Churchill Livingstone, Edinburgh
Bogduk N (2011a) The anatomy and pathophysiology of neck pain. Phys Med Rehabil Clin N Am 22:367–382
Bogduk N (2011b) On cervical zygapophyseal joint pain after whiplash. Spine 36:S194–S199
Chang H, Found EM, Clark CR, Goel VK, Gang CS (1992) Meniscus-like synovial fold in the atlantoaxial (C1–C2) joint. J Spinal Disord 5:227–231
Dreyfuss P, Michaelsen M, Fletcher D (1994) Atlanto-occipital and lateral atlanto-axial joint pain patterns. Spine 19:1125–1131
Farrell SF, Osmotherly PG, Cornwall J, Rivett DA (2014a) The anatomy and morphometry of cervical zygapophyseal joint meniscoids. Surg Radiol Anat. doi:10.1007/s00276-014-1406-3
Farrell SF, Osmotherly PG, Rivett DA, Cornwall J (2014b) Formic acid demineralization does not affect the morphometry of cervical zygapophyseal joint meniscoids. Anat Sci Int. doi:10.1007/s12565-014-0248-8
Fejer R, Kyvik K, Hartvigsen J (2006) The prevalence of neck pain in the world population: a systematic critical review of the literature. Eur Spine J 15:834–848
Felson D (2012) Osteoarthritis. In: Longo D, Fauci A, Kasper D, Hauser S, Jameson J, Loscalzo J (eds) Harrison’s principles of internal medicine, 18th edn. McGraw–Hill, New York
Felson D (2013) Osteoarthritis. In: Imboden J, Hellmann D, Stone J (eds) Current rheumatology diagnosis & treatment, 3rd edn. McGraw–Hill, New York
Friedrich K, Trattnig S, Millington S, Friedrich M, Groschmidt K, Pretterkliedber M (2007) High-field magnetic resonance imaging of meniscoids in the zygapophyseal joints of the human cervical spine. Spine 32:244–248 (Phila Pa 1976)
Friedrich K, Reiter G, Pretterkliedber M et al (2008) Reference data for In Vivo magnetic resonance imaging properties of meniscoids in the cervical zygapophyseal joints. Spine 33:E778–E783
Halla J, Hardin J (1987) Atlantoaxial (C1–C2) facet joint osteoarthritis: a distinctive clinical syndrome. Arthritis Rheumatol 30:577–582
Harata S, Tohno S, Kawagishi T (1981) Osteoarthritis of the atlanto-axial joint. Int Orthop 5:277–282
Inami S, Kaneoka K, Hayashi K, Ochiai N (2000) Types of synovial fold in the cervical facet joint. J Orthop Sci 5:475–480
Inami S, Shiga T, Tsujino A, Okado N, Ochiai N (2001) Immunohistochemical demonstration of nerve fibres in the synovial fold of the human facet joint. J Orthop Res 19:593–596
Kawabe N, Hirotani H, Tanaka O (1989) Pathomechanism of atlantoaxial rotatory fixation in children. J Paediatr Orthop 9:569–574
Kemp W, Burns D, Brown T (2008) Pathology of the bones and joints. In: Kemp W, Burns D, Brown T (eds) Pathology: the big picture. McGraw–Hill, New York
Kos J, Wolf J (1972) Les menisques intervertebraux et leur role possible dans les blocages vertebraux. Ann de Med Phys 15:203–218
Kos J, Hert J, Sevcik P (2002) Meniscoids of the intervertebral joints. Acta Chir Orthop Traumatol Cech 69:149–157
Lang J (1993) Clinical anatomy of the cervical spine. Georg Thieme, Stuttgart
Mercer S, Bogduk N (1993) Intra-articular inclusions of the cervical synovial joints. J Rheumatol 32:705–710
Schonstrom N, Twomey L, Taylor J (1993) The lateral atlanto-axial joints and their synovial folds: an in vitro study of soft tissue injuries and fractures. J Trauma 35:886–892
Star M, Curd J, Thorne R (1992) Atlantoaxial lateral mass osteoarthritis. Spine 17:S71–S76
Tang XY, Liu LJ, Yang HJ, Peng MX, Liao SH (2007) Anatomic study of the synovial folds of the occipito-atlanto-axial joints. Clin Anat 20(4):376–381
Taylor J, Taylor M (1996) Cervical spine injuries: an autopsy of 109 blunt injuries. J Musculoskelet Pain 4:61–79
Wang Z, Yu S, Haughton V (1989) Age-related changes in the lumbar facet joints. Clin Anat 2:55–62
Webb A, Darekar A, Sampson M, Rassoulian H (2009) Synovial folds of the lateral atlantoaxial joints: in vivo quantitative assessment using magnetic resonance imaging in healthy volunteers. Spine 34:E697–E702
Webb A, Collins P, Rassoulian H, Mitchell B (2011a) Synovial folds—a pain in the neck? Man Ther 16:118–124
Webb A, Darekar A, Rassoulian H (2011b) The influence of age, anthropometrics and range of motion on the morphometry of the synovial folds of the lateral atlanto-axial joints: a pilot study. Eur Spine J 20:542–549
Webb A, Rassoulian H, Mitchell B (2012) Morphometry of the synovial folds of the lateral atlanto-axial joints: the anatomical basis for understanding their potential role in neck pain. Surg Radiol Anat 34:115–124
White AA, Panjabi MM (1990) Clinical biomechanics of the spine. JB Lippincott, Philadelphia
Yu S, Sether L, Haughton V (1987) Facet joint menisci of the cervical spine: correlative MR imaging and cryomicrotomy study. Radiology 164:79–82
Zapletal J, De Valois J (1997) Radiologic prevalence of advanced lateral C1–2 osteoarthritis. Spine 22:2511–2513
Acknowledgments
The authors wish to acknowledge Dr. Jonathan Broadbent for providing items of equipment, A/Prof. Phil Sheard for his methodological advice, and Amanda Fisher for her technical expertise. Study costs were met by The University of Newcastle Research Training Scheme graduate student funding. SF is supported by an Australian Postgraduate Award scholarship. The authors would like to gratefully acknowledge those individuals who so kindly donated their bodies to the University of Otago body donation program.
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Farrell, S.F., Osmotherly, P.G., Cornwall, J. et al. Morphology and morphometry of lateral atlantoaxial joint meniscoids. Anat Sci Int 91, 89–96 (2016). https://doi.org/10.1007/s12565-015-0276-z
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DOI: https://doi.org/10.1007/s12565-015-0276-z