The different graft materials used for tympanoplasty are temporalis fascia, cartilage, perichondrium
, vein, fat, dura mater, and periosteum etc.3,5 Temporalis fascia is the most preferable graft material used by surgeon with success rate of 93-97% in primary tympanoplasties.
It is devoid of perichondrium
and has no vascular, neural and lymphatic supply.
These include temporalis fascia, skin, periostea, perichondrium
, dura mater, cartilage, vein, and fat.
Piercing with a sterile straight needle would have been preferable and less likely to be associated with secondary infection, as the shearing trauma to the perichondrium
experienced with a piercing gun is thought to predispose to infection.
The model is based on the removal of skin and underlying perichondrium
at least 7 mm in diameter using a punch biopsy with a corresponding size (Fig.
fascia 23 fascia & cartilage/bone & muscle flap 1 fascia & muscle flap 16 fascia & perichondrium
2 fascia & oxycel & TachoComb 4 Note: Table made from pie chart.
Septal hematoma is managed emergently because blood has accumulated between the nose cartilage and perichondrium
. If untreated, the cartilage dies, resulting in a saddle nose deformity.
Then, the posterior perichondrium
of the sternum was approached with 2/0 Vicryl sutures from the lower to the upper end (Figure 2b).
The nose, ears, eyelids and temples have been identified as high-risk anatomic sites for non-melanoma skin cancer (NMSC) (12, 13) most likely associated to the presence of embryonic fusion planes (12, 14), extensive nerve populations, the perichondrium
and periosteum closely associated to the dermis (15), or sebaceous glands that can store isolated groups of malignant cells (16).
Tgfbr1 is also called activin receptor-like kinase receptor ( Alk5 ), ALK5 protein is strongly expressed in perichondrial progenitor cells for osteoblasts and in a thin chondrocyte layer located adjacent to the perichondrium
in the peripheral cartilage. Conditional knockout of the TGF-[sz] type I receptor Alk5 in skeletal progenitor cells resulted in growth plates that had an abnormally thin perichondrial cell layer, as well as reduced proliferation and differentiation of osteoblasts.
To date, the temporalis fascia and perichondrium
are still the grafting material mainstays in primary tympanoplasty, with a success rate ranging from 35 to 95%.
They found the average healing time when the matrix was applied to exposed bone, periosteum, or perichondrium
was 13.8 weeks, compared with 10.8 weeks for subcutaneous wounds.