Wedge-shaped excision and modified vertical mattress suture fully buried in a multilayered and tensioned wound closure.

Background: A successful deep multilayered wound suture should provide a firm tension-relieving closure, good wound-edge eversion, hemostasis, and minimal intradermal extraneous materials. However, this is not always achieved with a single standard technique. The authors describe their modification of a wound closure method that can rapidly and reliably achieve these results.

[The design of the expanded flap for the repair of the temporal and cheek area].

Objective: To explore the design of an expanded flap at the temporal and cheek area.

Methods: The expanded flap was used for the repair of 619 temporal and cheek defects secondary to scar, nevus or hemangioma excision. In the frontal area, the rotational flap was usually used.

[Management of severe postburn scar contracture in the lower extremities].

Objective: To summarize the clinical experience in the management of severe postburn scar contracture in the lower extremities.

Methods: The scars in popliteal fossa and ankle joint were excised. Traction and skin grafting were employed in the management of contracture deformity in these areas.

[Experimental study of tissue engineered blood vessel with vascular endothelial cell and vascular smooth muscle cell].

Objective: To investigate the feasibility to seed vascular endothelial cell(VEC) and vascular smooth muscle cell (VSMC) into tissue engineered blood vessel scaffold material.

Methods: 1. A blood vessel scaffold with a combined polymer was designed, which mainly is composed of rabbit VSMC and collagen with reinforcement by a non-spinning fabric mesh made of polyglycolic acid (PGA).

[Fabrication of a blood vessel scaffold with a combined polymer for tissue engineering].

Objective: To investigate the possibility to fabricate a blood vessel scaffold with a combined polymer for tissue engineering.

Methods: A blood vessel scaffold was designed with a combined polymer composed of rabbit vascular smooth muscle cells(VSMCs), collagen and a non-spinning fabric mesh of polyglycolic acid (PGA). VSMCs were implanted into collagen gel and their growth was observed.

[Preparation of compound biodegradable matrices and growth of vascular endothelial cell on them].

Objective: To prepare the compound biodegradable matrices, polyglycolic acid (PGA), polylactic acid (PLA) mesh and poly-beta-hydroxybutyrate(PHB) which precoated with collagen, and to observe the growth and differentiation of bovine vascular endothelial cells on these scaffolds.

Methods: By enzymatic digestion methods, bovine vascular endothelial cell (VEC) were isolated from calf thoracic aorta, then cultured and purified. PGA, PLA, PHB meshes were dipped into cross-linked type I collagen solution, dried under vacuum frozen condition.