Inflammations and degenerative
processes can be localized in the tendon itself or in its sheath. If it deals
with an affection of the tendon itself, we speak about tendinitis. If it deals
with an affection of the tendinous sheath, we speak about tenovaginitis. At the
most of affections it deals with
present tendinitis and tenovaginitis in the absolute most of the cases. The tendinous sheath
is a combination of bursa with ligamentously strengthened fascial stripes
in the places where tendons are in the osteofibrotic
canaliculi. A fibrous part of the sheath is called sheath fibrosa
tendinitis. A synovial sheath (vagina synovialis tendinis) is created between
the tendon and vagina fibrosa tendinitis. The synovial sheath is similar
to the bursa, but of a cylindroid
shape. One layer of this synovial sheath is
put on the fibrous layer, the second layer of the synovial sheath is put on the
tendon. Between both laminas there is a synovia which has the same structure as
a synovial membrane of the articular capsule. Tendinitis of the long head of the
biceps is manifested at the ultrasound examination as an enlargement of the
tendon7, and tenovaginitis as an enlargement of the tendon of the sheath, and a presence of a liquid in the
sheath.
7 tendinitis is mostly connected with an enlargement of the tendon over 7 mm, or more than 1 mm in the comparison with the second side detectable during the ultrasound examination