Clinical Outcomes of Subchondral Bones and Cartilage Crush Injuries in Knee Fractures

Objective To examine the repair and outcomes of joint surface anatomy in intra-knee fractured subchondral bones and cartilage crush injuries.Methods From April 2008 to September 2009,intra-knee crush fracture patients(n=96)complicated with severely injured carticular surfaces received surgical intervention.The crushed subchondral bones and cartilages were embedded and compressed,in addition to be fixed with fine Kirschner wire.The additional external fixator or cast was used for 4-8 weeks postoperative.Results X-ray films showed healed fractures in all the treated patients,manifesting as flat carticular surfaces and free of any collapse or mobile body.As evaluated by Rasmussen's method,excellent results were seen in 72 patients,good in 20 patients,fair in 3 patients,and poor in one patient.Conclusion The use of embedded compression and auxiliary fine Kirschner wire was effective in the repair of carticular surfaces in intra-knee subchondral bones and cartilages combined fractures,achieving a satisfactory joint function.