(1) Meniscoid bodies of the zygapophyseal joints are considered by some to be a cause of the Acute-Locked Back Syndrome.
(2) In our patients, zygapophyseal joint fusion was the most frequent and characteristic roentgenographic finding of cervical spine involvement in JRA.
(3) Cysts arising from the zygapophyseal joints however are rare, but not unknown.
(4) On the dorsal aspect, a tripartite ligament, the mamillo-transverso-accessory ligament, bears important relationships to the subdivisions of the dorsal ramus and also the zygapophyseal joint.
(5) Beneath the mammillo-accessory ligament, medial branches occur that innervate the adjacent zygapophyseal joint, and distal zygapophyseal branches arise at the laminar level to innervate the next lower joint.
(6) Preliminary histological evidence of an extensive vascular supply to the osteoarthritic cartilage at the lumbo-sacral zygapophyseal joint in a 56 year old human cadaver is presented.
(7) While it is not possible to correlate morphological changes in cadavers with pain, it appears that the zygapophyseal joints and their associated soft tissues could be a source of low back pain of mechanical origin, with or without referred pain to the leg.
(8) Subsequent dissection revealed that at no level was the nerve supply to the zygapophyseal joints interrupted.
(9) Cervical zygapophyseal joint pain is not rare, and is worthy of further consideration not just in research but in clinical practice.
(10) Transverse sections of zygapophyseal joints from 61 human, postmortem, lumbar spines of individuals ranging in age from fetal life to 84 years, were used for a study of age changes in relation to biomechanical function.
(11) The anatomy of human lower lumbar zygapophyseal joint postero-medial fibrous capsules, and their synovial folds, was investigated by high-power light microscopy and transmission electron microscopy.
(12) Transverse histological sections from T10-11, T11-12, T12-L1, and L1-2 zygapophyseal joints were examined in 32 post-mortem spines, using light microscopy, to record the presence of intra-articular synovial fold inclusions.
(13) It is suggested that, in survivors, bony and soft-tissue injuries to zygapophyseal joints may result in considerable pain and dysfunction and may predispose to early arthritis.
(14) Two hundred micrometer thick histological sections from 80 human cadaveric lower lumbar zygapophyseal joint articular cartilages were examined by ordinary light and darkfield microscopy.
(15) The main findings were: osteoarthrosis in spinal zygapophyseal joints (particularly at cervical level); intervertebral osteochondrosis (particularly at the cervical and lumbar levels); Schmorl's nodes (particularly at the thoracic and lumbar levels); enthesopathic osteophytes (particularly in the spine, iliac crest, patella, and calcaneus).
(16) A 66-year-old marathon runner developed an intraspinal synovial cyst arising from the L5-S1 zygapophyseal joint, clinically characterized by episodic pain, paresthesia and sense of coldness.
(17) It is equally rare at the sacral level where it is formed by a narrowing and closure of the groove between the zygapophyseal joint and the sacral lateral mass.
(18) 3 patients with lumbosciatic pain, due to nerve root compression by a synovial cyst of the zygapophyseal joints are described.
(19) A comparison of the histology of the left and right zygapophyseal joint cartilages by light microscopy and dark field microscopy showed that, when dark field microscopy is used, a different histological reaction to staining can be highlighted.
(20) In a study of lower lumbar zygapophyseal facet joints, nerves have been demonstrated in the synovial folds by means of a silver impregnation method.
Zygapophysis
Definition:
(n.) One of the articular processes of a vertebra, of which there are usually four, two anterior and two posterior. See under Vertebra.
Example Sentences:
(1) Seven out of ten consecutive patients presenting with suspected cervical headache were found to suffer pain mediated by the third occipital nerve and stemming from a C2-3 zygapophysial joint.
(2) None of the five patients with asymptomatic joints was misdiagnosed as having symptomatic zygapophysial joints.
(3) Thus, manual diagnosis by a trained manipulative therapist can be as accurate as can radiologically-controlled diagnostic blocks in the diagnosis of cervical zygapophysial syndromes.
(4) The ability of a manipulative therapist to diagnose symptomatic cervical zygapophysial joint syndromes accurately was evaluated in a series of 20 patients.
(5) Occult injury to cervical intervertebral discs, vertebral end plates and cervical zygapophysial joints may be responsible for "whiplash" symptoms in some who are involved in motor vehicle accidents.
(6) One of the putative causes of headache is osteoarthritis of the C2-3 zygapophysial joint.
(7) It was shown that some intervertebral joints do exhibit an increased ability to rotate when in some degree of sub-maximal flexion dependent on the morphology of the zygapophysial joints.
(8) Rotational ability was shown, in general, to be increased in a flexed posture, presumed to be due to an opening of the lumbar zygapophysial joints.
(9) A report of a case of haematogenous infection of a lumbar zygapophysial joint.
(10) In full flexion axial rotation is limited, most probably by tightening of the posterior ligaments and zygapophysial joint capsules.
(11) Further, when zygapophysis structure is used to define vertebral type, rather than presence or absence of rib facets, there is a substantial change in thoracic and lumbar averages that may be important from a functional (locomotion) standpoint.
(12) The manipulative therapist identified correctly all 15 patients with proven symptomatic zygapophysial joints, and specified correctly the segmental level of the symptomatic joint.
(13) Diagnostic cervical medial branch blocks and zygapophysial joint blocks were used to test the hypothesis that the cervical zygapophyseal joints can be the source of pain in patients with idiopathic neck pain.
(14) Five linear and 2 angular measurements on each of C3 to T1 in a sample of 67 human skeletons were used to examine 3 hypotheses about the function of uncinate processes and zygapophysial joints in the cervical vertebral column.
(15) The high yield of positive responders in this study probably reflects the propensity of patients with zygapophysial joint syndromes to gravitate to a pain clinic when this condition is not recognised in conventional clinical practice.