Synovial fluid dynamics with small disc perforation in temporomandibular joint.
Summary of "Synovial fluid dynamics with small disc perforation in temporomandibular joint."
Summaryâ€‚ The articular disc plays an important role as a stress absorber in joint movement, resulting in stress reduction and redistribution in the temporomandibular joint (TMJ). The flow of synovial fluid in the TMJ may follow a regular pattern during movement of the jaw. We hypothesised that the regular pattern is disrupted when the TMJ disc is perforated. By computed tomography arthrography, we studied the upper TMJ compartment in patients with small disc perforation during jaw opening-closing at positions from 0 to 3â€ƒcm. Finite element fluid dynamic modelling was accomplished to analyse the pattern of fluid flow and pressure distribution during the movements. The results showed that the fluid flow in the upper compartment generally formed an anticlockwise circulation but with local vortexes with the jaw opening up to 2â€ƒcm. However, when the jaw opening-closing reached 3â€ƒcm, an abnormal flow field and the fluid pressure change associated with the perforation may increase the risk of perforation expansion or rupture and is unfavourable for self-repair of the perforated disc.
Department of Orthodontics, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou Department of Applied Mechanics and Engineering, Sun Yat-sen University, Guangzhou Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology,
This article was published in the following journal.
Name: Journal of oral rehabilitation
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/22582815
- DOI: http://dx.doi.org/10.1111/j.1365-2842.2012.02307.x
TMJ disc related diseases are difficult to be cured due to the poor repair ability of the disc. TMJ-SDSCs were ideal cell sources for cartilage tissue engineering which have been widely used in hyalin...
Synovial fluid is a viscous solution found in the cavities of synovial joints. The principal role of synovial fluid is to reduce friction between the articular cartilages of synovial joints during mov...
In this study, we compared the immune cell populations in rheumatoid arthritis (RA) synovial fluid, which shows lymphoid tissue-like structure, with those in tonsils, which are normal secondary lympho...
[This corrects the article on p. e78953 in vol. 8.].
We quantify the false-negative diagnostic rate of septic arthritis using Gram-stain microscopy of synovial fluid and compare this to values reported in the peer-reviewed literature. We propose a metho...
To analyze the relationship between composition of synovial fluid and its lubrication properties
This study will examine the effectiveness of injected hylan (Synvisc) for treating pain associated with osteoarthritis of the temporomandibular joint (jaw joint) and improving function of ...
This study will examine the genetic and immune factors involved in the cause and development of psoriatic arthritis-a disease of both the skin and joints. It will describe the medical fea...
Temporomandibular Disorder (TMD) is a widespread chronic pain condition. Successful psychosocial treatments for TMD have been developed, but the mechanisms by which these treatments achiev...
In this study, 20 COPD patients will undergo a high-resolution/multi slice CT scan and lung function tests to obtain patient specific geometries of the central and peripheral small airways...
Medical and Biotech [MESH] Definitions
The clear, viscous fluid secreted by the SYNOVIAL MEMBRANE. It contains mucin, albumin, fat, and mineral salts and serves to lubricate joints.
Non-neoplastic tumor-like lesions at joints, developed from the SYNOVIAL MEMBRANE of a joint through the JOINT CAPSULE into the periarticular tissues. They are filled with SYNOVIAL FLUID with a smooth and translucent appearance. A synovial cyst can develop from any joint, but most commonly at the back of the knee, where it is known as POPLITEAL CYST.
The inner membrane of a joint capsule surrounding a freely movable joint. It is loosely attached to the external fibrous capsule and secretes SYNOVIAL FLUID.
The mechanical laws of fluid dynamics as they apply to urine transport.
A variety of conditions affecting the anatomic and functional characteristics of the temporomandibular joint. Factors contributing to the complexity of temporomandibular diseases are its relation to dentition and mastication and the symptomatic effects in other areas which account for referred pain to the joint and the difficulties in applying traditional diagnostic procedures to temporomandibular joint pathology where tissue is rarely obtained and x-rays are often inadequate or nonspecific. Common diseases are developmental abnormalities, trauma, subluxation, luxation, arthritis, and neoplasia. (From Thoma's Oral Pathology, 6th ed, pp577-600)