Abstract: Objective:To observe the effect of nickel TiNi shape memory alloy patellar concentrator in treating patella fractures.Methods:The clinical data of 90 cases of patellar fracture treated by using the nickel TiNi patellar concentrator were analyzed retrospectively.Results:According to the luks evaluation standards,the effect was excellent in 82 cases,good in 6 cases and fair in 2 cases.Conclusions:The nickel TiNi patellar concentrator is an ideal procedure for patellar fracture.