Strength of syndesmosis fixation: 2 TightRope versus 1 TightRope with plate-and-screw construction

Tsai, Justin; Pivec, Robert; Hayes, Wilson C.; McLEOD, Murray A.; Segreto, Frank A.; Naziri, Qais; Saha, Soura; Uribe, J W

doi:10.1016/j.fas.2017.07.524

Cited by 1 publication

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, there were also studies [25,26] that revealed that the stability of the syndesmosis had no significant difference between suture-button fixation and screw fixation. Due to the limitation in sample size, the anatomy variation of the tibiofibular syndesmosis incisura was not considered [5].…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Syndesmotic malreduction may decrease fixation stability: a biomechanical study

et al. 2020

View full text Add to dashboard Cite

Background: This study aims to investigate the malreduction of syndesmosis and its effects on stability. Methods: The biomechanical tests, including the three-dimensional (3D) displacement of the syndesmotic incisura, fibular rotation angle, and torque resistance, were performed on six cadaver legs. These specimens were first tested intact (intact group), then cut all the syndesmotic ligaments and fixed in anatomical position (anatomical model group) and test again. After that, syndesmosis was fixed in 1 cm malreduction (anterior and posterior displacement group) to do the same test. Results: In internal or external load, there were significant differences in torque resistance and fibular rotation angle (internal t = 2.412, P = 0.036; external t = 2.412, P = 0.039) between the intact and post-malreduction groups. In internal rotation load, there were significant differences in sagittal displacement between the intact and postmalreduction groups (P = 0.011), and between the anatomical and post-malreduction groups (P = 0.020). In external rotation load, significant differences existed between the intact and ant-malreduction group (P = 0.034) in sagittal (anterior-posterior) displacement. Significant differences also existed between the intact and post-malreduction groups (P = 0.013), and between the anatomical and post-malreduction groups (P = 0.038) in coronal (medial-lateral) displacement.Conclusions: Malreduction in different conditions does affect the stability of the syndesmotic fixation. The result of the study may reveal the biomechanical mechanism of poor clinical outcome in syndesmosis malreduction patients and pathological displacement patterns of the ankle under syndesmotic malreduction conditions. Level of evidence: III

show abstract

Section: Discussionmentioning

confidence: 99%

“…We set the experimental conditions according to the method of previous literature [5,6]. At the beginning of the test, the specimens were preconditioned for five cycles to ± 7.5 Nm, while a 600-N axial compressive load was applied and maintained.…”

Section: Biomechanical Testmentioning

confidence: 99%