The effect of Ding's screws and tension band wiring for treatment of inferior pole patellar fractures

Li Du; Nuo Yin; Mingmang Pan; Feng Xue; Yuchun Shen; Liang Ding

doi:10.1016/j.injury.2023.02.021

The effect of Ding's screws and tension band wiring for treatment of inferior pole patellar fractures

Injury. 2023 Apr;54(4):1198-1202. doi: 10.1016/j.injury.2023.02.021. Epub 2023 Feb 14.

Authors

Li Du¹, Nuo Yin¹, Mingmang Pan¹, Feng Xue¹, Yuchun Shen¹, Liang Ding²

Affiliations

¹ Department of Orthopaedics, Feng Xian District Central Hospital, Branch of The Sixth People's Hospital Affiliated to ShanghaiJiao Tong University, Shanghai 201400, China.
² Department of Orthopaedics, Feng Xian District Central Hospital, Branch of The Sixth People's Hospital Affiliated to ShanghaiJiao Tong University, Shanghai 201400, China. Electronic address: dl1900@sina.com.

PMID: 36792403
DOI: 10.1016/j.injury.2023.02.021

Abstract

Objectives: We developed a cannulated screw with holes in the tail, named the Ding's screw. The objective of this study was to evaluate the clinical effect of Ding's screw in the treatment of inferior pole patellar fracture.

Methods: From March 2017 to October 2021, 68 patients with inferior pole patellar fracture in our department were retrospectively reviewed. According to different treatment methods, they were divided into Ding's screw and tension band wiring group (DSTBW) and cannulated screws and tension band wiring group (CSTBW). Radiological and clinical outcomes were evaluated and compared.

Results: There were 33 cases in DSTBW group and 35 cases in CSTBW group. The mean follow-up duration was 14.5 ± 2.6 months in the DSTBW group and 15.0 ± 2.3 months in the CSTBW group. No significant differences in age, sex, operative side or time to surgery were present between the two groups. Skin breakdown and infection were not significantly different among the groups (P > 0.05). At the last follow-up, the average Bostman score of the DSTBW group was 28.5 ± 1.3(excellent) and that of the CSTBW group was 27.8 ± 1.6(good), with statistical significance (P = 0.045). The average Lysholm score of the DSTBW group was 94.1 ± 3.4 (good), and that of the CSTBW group was 90.1 ± 4.4 (good), and the difference was statistically significant (P < 0.001). The average knee joint ROM of the DSTBW group was 135.6 ± 6.8˚, and that of the CSTBW group was 130.1 ± 6.7˚, and the difference between the two groups was statistically significant (P = 0.001).

Conclusions: DSTBW is an effective method for the treatment of inferior pole patellar fractures with stable fixation and good functional effect.

Keywords: Cannulated screw; Ding's screw; Inferior pole; Patellar fracture; Tension band wiring.

MeSH terms

Bone Wires
Fracture Fixation, Internal / methods
Fractures, Bone* / diagnostic imaging
Fractures, Bone* / surgery
Humans
Knee Injuries* / surgery
Patella / diagnostic imaging
Patella / surgery
Retrospective Studies
Treatment Outcome