A Stainless Steel Foreign body in the Knee Joint With Synovitis: A Case Report / 대한정형외과학회잡지

A foreign body reaction to biodegradable fixation materials for internal fixation of a variety of fractures and osteotomies has been described since nineteen eighty five. Polyglycolide and other biodegradable poly-alpha-hydroxyacids such as polylactide (PLA) or polydioxanone (PDS) causes a non-specific inflammatory reaction with invasion of macrophages, multinucleated foreign body giant cells and neutrophilic polymorphonuclear leucocytes. The wood and needle fish were reported to cause foreign body reaction by several authors. But there is no report about aseptic synovitis caused by intraarticular stainless steel foreign body. So we report a case of aseptic synovitis reaction to stainless steel treated successfully by arthroscopic surgery and discuss the possible reasons for this inflammatory reaction.

Dynamic Closing Method Using Elasticity for Skin Defect / 대한정형외과학회잡지

Skin defects unable to close by primary intention have caused many difficulties. Complex surgical interventions such as repetitive debridements, skin graft, or flap have been performed as therapeutic methods. Recently, new techniques for the skin closure based on the stretching property, elasticity or stress relaxation, have been introduced. This biomechanical property exhibits that the force required to keep the skin at a stretched length decreases over time. As the skin is stretching, the convoluted collagen fibers in dermis are straighten and become a line in the direction of stretching force. Fifteen cases of skin defects associated with fracture were closed by a new dynamic closing method at Department of Orthopaedic Surgery, Yonsei University College of Medicine. Two spinal needles were inserted into dermis along the wound margins on each side in order to distribute the even tension. The wound margins were approximated by suture wires engaged with the needles. We have experienced successful results using new stretch closing method in fracture with skin defect. It is confirmed that this method is rapid, simple, cost-effective, cosmetic, and safe way to close the skin defect and shortens hospital stay.