The researchers isolated
fibrocartilage stem cells (FCSCs) from the joint and showed that the cells can form cartilage and bone, both in the laboratory and when implanted into animals.
The joints with
fibrocartilage and hyaline are more likely to develop CPPD; this makes the knees and wrists the most common sites.17 Radiographs of the knees will detect 90% of patients with calcifications in chondrocalcinosis, which are linear or punctuate in hyaline cartilage, but granular in
fibrocartilage.
Quantitative evaluation of the tendon cell density, thickness of the
fibrocartilage zone and area of proteoglycan
The anatomic structure and position of synovial joint differ from fibrous or
fibrocartilage joints and because of continuous mechanical stresses to these joints and bearing weight, these joints are more susceptible to degeneration.
At the end of treatment, a histological examination showed hyaline cartilage in the infrared laser group,
fibrocartilage in the He-Ne laser group, and granulation tissue in limbs of the control group.
High-resolution 3T magnetic resonance imaging of the triangular
fibrocartilage complex in Chinese wrists: Correlation with cross-sectional anatomy.
The collagen types I, II, and X characterize
fibrocartilage and chondrocyte dedifferentiation, typical hyaline cartilage, and cartilage hypertrophy, respectively [28].
The supraspinatus tendon is particularly vulnerable, since it curves along its course between the musculotendinous junction and its insertion on
fibrocartilage. Furthermore, magic angle augmentation of signal intensity within the biceps tendon may be misinterpreted as focal cuff pathologic conditions near the rotator interval.
(1) In general, small avulsions of the ulnar styloid do not require formal treatment, whereas displaced fractures of the base of the styloid involving the fovea may require operative repair, if there is clinical instability, to reestablish the attachment of the triangular
fibrocartilage complex.
The labrum is a ring of
fibrocartilage based on the glenoid cavity.