From March 2013 to October 2019, 9 customers with serious flexion contracture (type Ⅲ) of this proximal interphalangeal joint after trauma operation, complying into the inclusion requirements, were hospitalized in Suzhou Ruihua Orthopaedic Hospital, including 5 men and 4 females, elderly from 17 to 62 many years. After the contracture muscle influencing the extension regarding the proximal interphalangeal joint had been take off, and also the scar tissue formation was resected, how big the volar wound near the proximal interphalangeal joint in extended position had been 2.0 cm×1.0 cm-2.5 cm×1.5 cm, aided by the period of appropriate electronic artery and nerve defect being 1.0-1.5 cm. A totally free flap of the identical dimensions whilst the wound ended up being cut through the tibial region of the second toe and transplanted to repair the wound, plus the defecto restore the severely developed proper digital artery and nerve is effective to enhance the blood supply of the hand body and rebuild the sensation.Objective to analyze the clinical application results of mixture of various kinds of no-cost perforator flaps within the repair of complex injuries in extremities. Techniques A retrospective observational study was carried out. From January 2018 to Summer 2022, 11 patients with complex injuries in extremities whom came across the addition criteria was admitted towards the Affiliated Hospital of Zunyi healthcare University, including 8 men and 3 females, aged 28 to 55 many years. The wounds within the top extremities in 4 instances as well as in the reduced extremities in 7 cases had been repaired with different mixture of free perforator flaps. After debridement, the wound location was 7.0 cm×6.0 cm-28.0 cm×12.0 cm. A mixture of different sorts of perforator flaps were applied, including the perforator tri-leaf flap for the descending branch associated with the lateral femoral circumflex artery in 6 situations, the descending part of horizontal femoral circumflex artery combined with oblique part perforating branch flap in 2 instances, the lobulated flap regarding the descendingap combined with medial plantar flap were used to repair plantar problems. The plantar getting location managed to bear body weight, and the surface associated with the flaps in the recipient area had been near to the typical plantar epidermis, without flap sliding, ulcer, or sinus tract development. In a single Mediating effect client, bilateral anterolateral thigh flap combined with great toenail flap were used to repair hand along with soft forearm defect, in addition to appearance and purpose of hand, specially flash had been great. Just linear scar had been remaining into the donor web site without other apparent problems. Conclusions The mixture various kinds of perforator flaps is a dependable medical approach to repair complex injuries in extremities with a high security, great efficacy, and less complications.Objective To explore the feasibility and medical effects of making use of free perforator propeller myocutaneous flap from buttock in restoring complex injuries when you look at the buttock with deep lifeless cavity. Techniques A retrospective observational research ended up being carried out. From June 2020 to June 2022, 9 clients with complex injuries within the buttock with deep dead cavity whom found the inclusion requirements were accepted to Lanzhou University Second Hospital, including 6 men and 3 females, aged 26 to 62 many years, with exclusive wound location ranging from 4.0 cm×3.0 cm to 8.0 cm×7.0 cm and dead hole level of 7 to 11 cm. All of the wounds had been repaired with free perforator propeller myocutaneous flap from buttock, with flap area of 6.0 cm×2.5 cm to 13.0 cm×7.0 cm and muscle flap length of 6 to 11 cm. All of the wounds within the donor location were shut and sutured right. Postoperative myocutaneous flap survival, problems, as well as donor and individual injury healing were observed, in addition to model of donor and person areas were followed up. Results Congestion took place beneath the myocutaneous flap of one patient as a result of poor drainage on post surgery time 2, that has been healed after 15 days of drainage and dressing modification. The myocutaneous flaps of other patients survived successfully after surgery. The wounds when you look at the donor and person places had been all well healed. Through the follow-up of 3 to 10 months, the donor and recipient areas were complete in form, with little difference from the healthier part, and could actually bear force. Conclusions The no-cost perforator propeller myocutaneous flap from buttock can restore the deep lifeless cavity and area wounds at the same time. The usage of this myocutaneous flap in fixing complex injuries within the buttock with deep dead cavity leads to minimal injury to the donor area, allows pressure-bearing for the donor and person areas after surgery, and ensures a complete buttock shape.Objective To investigate the impact of medical administration of dobutamine on bloodstream perfusion in free flap repair of diabetic base injuries. Methods A prospective self-controlled research ended up being carried out. From January to November 2022, 20 clients with diabetic base who met the inclusion criteria check details had been hospitalized in the Department of Burns and plastic cosmetic surgery of Affiliated Hospital of Zunyi healthcare University, including 9 men and 11 females, elderly from 44 to 75 years, utilizing the base wounds area including 5 cm×4 cm to 20 cm×10 cm, that have been repaired by no-cost anterolateral leg flaps. Heart price (hour) and indicate arterial pressure (MAP) had been endobronchial ultrasound biopsy recorded before anesthesia induction, ten full minutes after vascular recanalization, when the target blood circulation pressure (i.e.