[Biomechanical observation on unstable intertrochanteric fracture fixed by 130 degrees angled-plate].
We examined the stability of unstable intertrochanteric fracture fixed by 130 degrees angled-plate biomechanically, and the stress distribution of the plate. The results showed that after 300 times circle-loading test, the fracture stability was destroied. Stress concentration was observed on the plate, which was aggravated by circle-loading test. These confirmed the inproper biomechanical stature of the plate. Referring to the clinical review, we conclude that using angled-plate to fix unstable intertrochanteric fracture hardly yields satisfactory results, at least, early wight-bearing exercise should not be promoted.
Li
F
F
Orthopedic Department, People's Liberation Army Beijing Army General Hospital.
Xu
S
S
Jiang
J
J
D001696:Biomechanical Phenomena; D001860:Bone Plates; D005593:Fracture Fixation, Internal; D006620:Hip Fractures / Q000503:physiopathology* / Q000601:surgery; D006801:Humans; D013314:Stress, Mechanical