Abstract: Objective To investigate the effect of vacuum sealing drainage (VSD) on skin necrosis after orthopaedic trauma in plateau area above 4000 meters.
Methods From August 2018 to May 2019, 10 patients with open injuries of limbs caused by trauma and necrosis of skin after primary debridement and suture were selected from Dingri County People's Hospital of Tibet Autonomous Region (the average altitude of Dingri County is 5000 meters). All patients underwent VSD coverage for 7～10 days after secondary debridement of soft tissue wounds, and finally underwent thick skin grafting.
Results After VSD treatment, none of the wounds were infected and the skin graft survived at one time. The therapeutic effect was satisfactory.
Conclusion The application of VSD in the treatment of orthopedic post-traumatic skin necrosis in high altitude areas can promote wound healing.

Key words: vacuum sealing drainage technology, skin necrosis, trauma, skin grafting