Double-rows technique with suture anchors in eight patients with fracture of distal patellar pole: reliable initial fixation

doi:10.12307/2021.324

Abstract

Abstract: BACKGROUND: Fracture of distal patellar pole is a special type of patellar fracture. Because of the comminuted inferior pole of patella without enough holding force, the commonly used techniques of patellar fracture are not applicable. There is no gold standard surgical treatment for fracture of distal patellar pole.
OBJECTIVE: To investigate the clinical effects of the double-rows technique with suture anchors in fixation of fracture of distal patellar pole.
METHODS: A retrospective study was conducted in eight patients with fracture of distal patellar pole in Shuguang Hospital Affiliated to Shanghai University of Chinese Traditional Medicine who underwent double-rows technique with suture anchors from May 2017 to May 2019. Systematic knee joint function exercise was performed in all patients, and joint function evaluation was regularly followed up. The range of motion was compared between the healthy side and postoperative joint.
RESULTS AND CONCLUSION: (1) All eight patients were followed up for 16-28 months, with an average of 19.5 months. (2) The incisions of all patients healed in stage I, without complications such as infection, loosening of anchor or pain of knee. Three months later, X-ray films showed bone healing in all patients. (3) At 12 months after operation, Bostman patellar fracture function score was (28.5±1.5); the knee joint injury and osteoarthritis curative effect score was (93.6±4.4); the excellent and good rate was 100%. (4) From 3 months after operation (3, 6, 12 months), the active flexion angle of the affected side was not significantly different from that of the healthy side (P > 0.05). (5) It is concluded that the double-rows technique with suture anchors can provide good initial fixation strength for the fracture of distal patellar pole. It has the advantages of good reduction effect, reliable fixation, no need for secondary surgery to remove internal fixation, less interference to soft tissue and early functional exercise.

Key words:

patella, patellar ligament, suture archor, fractures of distal patellar pole, internal fixation, double-rows technique

CLC Number:

Chen Yu, Yu Zhongxiang, Kuang Yong, Wang Shuqiang, Cai Yuwei, Fang Lei, Xu Shengming. Double-rows technique with suture anchors in eight patients with fracture of distal patellar pole: reliable initial fixation[J]. Chinese Journal of Tissue Engineering Research, 2021, 25(33): 5341-5344.

Figures/Tables 3

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