The rationale of this study is that tragal perichondrium
graft is strong, thin, easily available and easier to manipulate than tragal cartilage.
Various graft materials have been used since then including skin, amniotic membrane, mucous membrane, dura mater, cornea, periosteum, perichondrium
, vein, adipose tissue and temporalis fascia.
Removal of the perichondrium
was performed with conventional surgery on the left ears and cryosurgery was performed on the right ears.
Compared with fascia and perichondrium
grafts, cartilage graft proved to be a superior choice in revision surgery because of its superior resistance to negative middle ear pressure.
In case, skin is lost, but perichondrium
is preserved, it will "take" a thin skin graft or else granulation and epithelialization can occur.
Wnt fixation occurs generally in the same cells than [beta]-catenin, but is observed more intensively in muscular blastemata, perichondrium
and ossification areas.
Once the location of the defect was known, the perichondrium
around the tracheal defect was closed with a figure-of-eight absorbable suture, and the overlying soft tissue was closed sequentially in layers.
Technique consisted ofgiving injection of Transforming Growth Factor Beta 1, and subsequently performing ventral skin, ventral perichondrium
, cartilage, and dorsal perichondrium
excision, leaving behind only dorsal skin.The best rabbit ear keloid model was produced by this technique, which was intact even after follow up of one year.This technique has been named as 'MannanandHannan Technique for production of rabbit ear keloid model'.
From the superior edge, a full length incision of fascioperichondreal layer was carried out down to the perichondrium
. Afterwards, the proximal-based fascioperichondrial flap was elevated using the subperichondrial plane till the post-auricular sulcus (Figure lb).
Given an outer fibrous perichondrium
where type 1 collagen mRNA and protein are highly expressed and an inner, more cellular zone that cells are actively dividing (Price et al., 2005), the reserve mesenchyme, therefore, provides an ideal source for exploring the antler growth and may help in understanding the mechanism of the difference in antlers of male and female reindeer.
Both the cavum conchae and MEAC are lined by keratinizing stratified squamous epithelium, closely adherent to the perichondrium
. The subcutaneous tissue of the cavum conchae contains fine hairs and numerous sebaceous glands, whereas at the MEAC level it has abundant hairs as well as sebaceous and ceruminous, but not eccrine sweat, glands (Figures 1(a) and 3(a)).
This injury necessitates suturing of the anterior vocal ligament to the thyroid perichondrium
to restore the normal scaphoid shape of the glottis (Table 2).