| temporomandibular | Relating to the temporal bone and the mandible; denoting the joint of the lower jaw. Synonym: temporomaxillary. (05 Mar 2000) |
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| temporomandibular arthrosis | A noninfectious degenerative dysfunction of the temporomandibular joint characterised by pain, cracking, and limited mandibular opening. See: myofacial pain-dysfunction syndrome. (05 Mar 2000) |
| temporomandibular articulation | <anatomy, dentistry> The joint that connects the lower jaw to the skull. (12 Jan 1998) |
| temporomandibular ligament | <anatomy> The capsular ligament that passes obliquely down and backward across the lateral surface of the temporomandibular joint. Synonym: ligamentum laterale articulationis temporomandibularis, Ferrein's ligament, lateral ligament of temporomandibular joint, ligamentum temporomandibulare, temporomandibular ligament. (05 Mar 2000) |
| temporomandibular nerve | <anatomy, nerve> A branch of the maxillary nerve in the inferior orbital fissure through which it passes; it gives rise to two sensory branches, the zygomaticotemporal and zygomaticofacial, which supply the skin of the temporal and zygomatic regions and is continued as the communicating branch of the lacrimal nerve with the zygomatic nerve. Synonym: nervus zygomaticus, orbital nerve, temporomandibular nerve. (05 Mar 2000) |
| temporomandibular syndrome | <syndrome> Those various symptoms of discomfort, pain, or pathosis stated to be caused by loss of vertical dimension, lack of posterior occlusion, or other malocclusion, trismus, muscle tremor, arthritis, or direct trauma to the temporomandibular joint. (05 Mar 2000) |
| lateral temporomandibular ligament | <anatomy> The capsular ligament that passes obliquely down and backward across the lateral surface of the temporomandibular joint. Synonym: ligamentum laterale articulationis temporomandibularis, Ferrein's ligament, lateral ligament of temporomandibular joint, ligamentum temporomandibulare, temporomandibular ligament. (05 Mar 2000) |
| annulus fibrosus of intervertebral disc | The ring of fibrocartilage and fibrous tissue forming the circumference of the intervertebral disc; surrounds the nucleus pulposus, which is prone to herniation when the annulus fibrosus is compromised. Synonym: annulus fibrosus disci intervertebralis, annulus fibrosus, fibrous ring of intervertebral disc, fibrous ring. (05 Mar 2000) |
| bulging disc | <radiology> Broad-based disc extension outward in all directions with intact but weakened annulus fibrosus and posterior longitudinal ligament, age: greater than40 y.o (common finding), location: lumbar, cervical findings: concave anterior margin of thecal sac, nucleus pulposa hypointense on T1 and hyperintense on T2 (water loss through degeneration) see: degenerative disc disease (12 Dec 1998) |
| cervical disc herniation | <radiology> C6-7 (69%), C5-6 (19%), C7-T1 (10%), C4-5 (2%) see: degenerative disc disease (12 Dec 1998) |
| cervical disc syndrome | <syndrome> Pain, paresthesias, and sometimes weakness in the area of the distribution of one or more cervical roots, due to pressure of a protruded cervical intervertebral disc. Synonym: cervical compression syndrome. (05 Mar 2000) |
| micro-disc surgery | This describes a newer form of orthopaedic back surgery involving the insertion of a special hardware device through a small incision in the lower back. This form of surgery is indicated for those with intractable (unresponsive to medical therapy alone) disk disease of the lower spine (typically lumbar). The prolapsed disk is suction out of the back via a small tube inserted through the incision. (27 Sep 1997) |
| sacrococcygeal disc | A thin plate of fibrocartilage interposed between the sacrum and coccyx. (05 Mar 2000) |
| slipped disc | <orthopaedics> A condition that results in the abnormal protrusion (bulging), herniation or prolapse of a vertebral disc from its normal position in the vertebral column. The displaced disc may exert force on a nearby nerve root causing the typical neurologic symptoms of radiating pain (to an extremity), numbness, tingling and weakness. Recurrent episodes of severe back pain are common. Treatment includes non-steroidal anti-inflammatory drugs, corticosteroids and rest. More advanced cases may require surgical intervention (for example laminectomy, micro-disc surgery). (19 Jan 1998) |
| degenerative disc disease | <radiology> Plain film: narrowing of disc space; osteophytes; bone sclerosis, disc calcification, vacuum disc phenomenon (nitrogen at sites of negative pressure) MRI: endplate changes (Modic and deRoos), Type I (4%): decreased signal on T1; increased signal on T2; vascularised fibrous tissue, Type II (16%): increased T1; isointense T2; local fatty replacement of marrow, Type III: decreased T1; decreased T2; advanced sclerosis sequelae: disc bulging, disc herniation, disc sequestration, spinal stenosis (12 Dec 1998) |