The authors reviewed by Burnett use the term "synchondrosis
" to describe the presence of cartilage in the articular space, unrelated to the type of articulation established between the two osseous elements.
was found to occur in 61% of a population.
Ogden, "Fracture of a bipartite medial cuneiform synchondrosis
," Foot and Ankle International, vol.
The posterior intraoccipital synchondrosis
began to show CT evidence of fusion (grade 2) by 18 months in 156 cases (78%).
Power Doppler examination did not show visible signs in the subacromial bursa, rotator cuff, and in the synchondrosis
. To exclude bilateral involvement, ultrasonographic examination was performed also in the left shoulder with negative result.
But if it fails to fuse, an os trigonum is formed (in 7% to 14% of the cases) that articulates with the talus via a synchondrosis
. (3,5,6) Although common in ballet dancers, os trigonum syndrome is also encountered in those who participate in other sporting activities that involve forced plantar flexion of the foot, such as soccer, basketball, and volleyball, as well as in those who participate in nonsport-related activities.
Degeneration of the accessory navicular synchondrosis
presenting as rupture of the posterior tibial tendon.
Level two: Lateral view, right side of mandibular arch: 9, posterior limit of hyomandibular articular condyle; 10, dorsal tip of hyomandibular dorsal process; 11, anterior limit of hyomandibular opercular condyle; 12, anterodorsal limit of hyomandibular symplectic synchondrosis
; 13, anterior limit of preopercular-quadrate suture; 14, posterodorsal limit of quadrate (in tricomycterids, this is represented by a slender dorsal process, while in other loricarioids, the process is absent and the landmark is identified as the posterodorsal extremal limit of the quadrate); 15, anterior tip of quadrate mandibular condyle.
Age estimation using CT imaging of the third molar tooth, the medial clavicular epiphysis, and the spheno-occipital synchondrosis
: a multifactorial approach.
A few of these involve posterior tibial tendinitis, pressure with irritation of the bony prominence, abnormal biomechanics of the foot, a trauma (eversion sprain) to the synchondrosis
between the accessory navicular and the navicular itself, or even a (stress) fracture of the accessory navicular itself.
The width of the synchondrosis
of the sixth and seventh rib cartilages and the length of the eighth rib cartilage are two key reference factors in auricular framework sculpting.