Abstract: Objective To evaluate the clinical effects of patella fracture treated by closed reduction and kirschner wire tension band internal fixation.
Methods From April 2018 to October 2019,40 patients with transverse patella fracture were studied.20 cases in the observation group was treated by closed reduction and kirschner wire tension band internal fixation,20 cases in the control group treated by open reduction kirschner tension band.The surgical incision length,operation time,knee visual analogue scale(VAS) and knee Lysholm score at 3 days,2 weeks,1.5 months and 6 months after surgery of 2 groups were recorded and compared.
Results Compared with the control group,the observation group had longer operation time [(64.46±7.46) min vs.(79.24±9.23) min,P＜0.05].There was no fluoroscopy in the control group,and the observation group fluoroscopy time was(15.36±2.51) min.Compared with the control group,the knee joint VAS of the observation group [(4.86±0.74) points vs.(3.54±0.86) points,(3.12±0.54) points vs.(1.65±0.62) points] at 3 days and 2 weeks after surgery had decreased(all P＜0.05),Lysholm score [(19.31±3.25) points vs.(25.41±4.23) points,(34.56±3.10) points vs.(40.25±4.56 points] had increased(all P＜0.05).The knee joint VAS [(1.14±0.31) points vs.(1.08±0.26) points,(0.63±0.19) points vs.(0.61±0.18) points] and Lysholm scores [(56.23±3.12) points vs.(59.21±2.14) points,(85.35±1.54) points vs.(84.58±1.96) points] at 1.5 months and 6 months after surgery in 2 groups had no significant differences(all P>0.05).All patients received at least 6 months of follow-up,none of 40 patients had postoperative complications such as joint infection,loosening of internal fixation,neurovascular injury and other postoperative complications.
Conclusion The closed reduction and kirschner wire tension band internal fixation can be used to treat patella fracture,which has a satisfactory clinical effect,with no incision,less trauma,early recovery and less pain.

Key words: closed reduction, open reduction, kirschner wire tension band, patella fracture