Comparison of uniaxial and polyaxial locking plate fixation for Sanders types Ⅳintra-articular calcaneal fractures
10.3760/cma.j.issn.1673-4904.2019.02.003
- VernacularTitle:SandersⅣ型复杂跟骨关节内骨折经单轴与多轴锁定钢板治疗疗效对比
- Author:
Yu YAN
1
;
Xingguo LIU
;
Yihong YANG
;
Wenbin YANG
Author Information
1. 西安高新医院骨科 710075
- Keywords:
Calcaneus;
Fractures;
bone;
Locking plate;
Fractures fixation;
internal
- From:
Chinese Journal of Postgraduates of Medicine
2019;42(2):105-108
- CountryChina
- Language:Chinese
-
Abstract:
Objective To compare the radiographic and clinical outcomes of uniaxial and polyaxial locking plates used in the treatment of Sanders types Ⅳ intra-articular calcaneal fractures. Methods A retrospective comparative study was performed on the 72 patients with Sanders types Ⅳintra-articular calcaneal fractures who had been treated by uniaxial locking plates (A group, 38 cases) or polyaxial locking plates (B group, 34 cases) between January 2012 and December 2016. Operation time, intraoperative bleeding, union time, radiological and functional outcomes and functions by the Maryland foot score were compared between the two groups. Results There were no significant differences between the two groups in operation time, intraoperative bleeding, or union time (P>0.05). The patients in A group were followed up for (23.2 ± 5.4) months, and those in B group were followed up for (22.5 ± 4.9) months. All the patients obtained bony union. B group displayed significantly better Bohler angles [(31.6 ± 4.5)° vs. (27.6 ± 6.1)°, (30.7 ± 4.2)° vs.(27.0 ± 5.4)°] and Gissane angles [(109.2 ± 10.8)° vs. (96.8 ± 9.5)°, (107.3 ± 10.1)° vs. (95.4 ± 10.2)°] at 3 and 12 months after operation , compared with A group (P<0.05). Evaluated by the Maryland foot score, the excellent and good rate for the B group was 91.2％(31/34) , which was insignificantly higher than that for the A group (84.2％, 32/38) (P > 0.05). Conclusions Both uniaxial locking and polyaxial locking plates can lead to satisfactory therapeutic outcomes for Sanders types Ⅳ intra-articular calcaneal fractures, but polyaxial locking plates may be superior in stability and functional recovery.
