Special Report
Effects of CCS and DHS-B on femoral neck fracture and their influences on biomechanics
Dongtao Yuan, Shaoan Zhang, Songmao Wang, Zhihao Li, Zhihai Zhang
Published 2018-09-01
Cite as IMHGN, 2018, 24(17): 2613-2616. DOI: 10.3760/cma.j.issn.1007-1245.2018.17.010
Abstract
ObjectiveTo study the effects of cannulated compression screw (CCS) and dynamic hip screw blade (DHS-B) on femoral neck fracture and their influences on biomechanics.
Method74 patients with femoral neck fracture were randomly divided into CCS group and DHS group, and the effects of the two groups were compared.
ResultsAfter operation, the callus growth scores in the two groups both increased with time, the differences of time points in each group were statistically significant (P<0.05), and the differences between the two groups at every time point were statistically significant (P<0.05). The internal and external strain values, horizontal and vertical offset distance, and section opening angle in the CCS group were all larger than those in the DHS group (P<0.05); the ultimate load capacity in the CCS group was less than that in the DHS group (P<0.05). After 6 months of follow-up, the scores of each item and total score of Harris scale in the CCS group were significantly lower than those in the DHS group (P<0.05).
ConclusionsCCS and DHS-B are both widely used internal fixation materials, which have good effects in femoral neck fracture. Compared with CCS, DHS-B has design advantages, more suitable for femoral biomechanical characteristics, therefore, its treatment effect is better.
Key words:
Femoral neck fracture; Cannulated compression screw (CCS); Dynamic hip screw blade (DHS-B); Biomechanics
Contributor Information
Dongtao Yuan
Department of Orthopedics, The Second Affiliated Hospital of Luohe Medical College, Luohe 462300, China
Shaoan Zhang
Songmao Wang
Zhihao Li
Zhihai Zhang
