Comparison of a new minimum contact locking plate and the limited contact dynamic compression plate in an osteoporotic fracture model.
The purpose of this study was to investigate the biomechanical properties of a new minimum contact locking plate (MC-LP) compared with the limited contact dynamic compression plate (LC-DCP). Eighteen pairs of fresh human osteoporotic cadaver radii were equally divided into three groups. Each specimen was tested in each of the following force applications: anteroposterior (AP) four point bending, mediolateral (ML) four point bending, and torsion. A 10-mm gap osteotomy model was used to simulate a comminuted diaphyseal radial fracture. For each pair, one radius received a limited contact dynamic compression plate (LC-DCP) and the contralateral radius was fixed with a minimum contact locking plate (MC-LP). Specimens were tested in nondestructive four point bending and torsion on an electronic universal material testing system. The results indicate that the MC-LP system is significantly more stable than the LC-DCP system when tested in four point bending and torsion in an osteoporotic comminuted radial diaphyseal fracture model.
Xiong
Yan
Y
Department of Orthopedics, Daping Hospital, The Third Military Medical University, 10 Changjiang Branch Road, Chongqing, 400042, People's Republic of China.
Zhao
Yufeng
Y
Wang
Ziming
Z
Du
Quanyin
Q
Chen
Weijun
W
Wang
Aimin
A
D000368:Aged; D000369:Aged, 80 and over; D001696:Biomechanical Phenomena; D001860:Bone Plates; D002102:Cadaver; D019245:Compressive Strength; D019544:Equipment Failure Analysis; D005260:Female; D005593:Fracture Fixation, Internal / Q000295:instrumentation* / Q000379:methods; D005598:Fractures, Spontaneous / Q000209:etiology / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010024:Osteoporosis / Q000150:complications / Q000601:surgery*; D018583:Pliability; D011475:Prosthesis Failure; D011885:Radius Fractures / Q000209:etiology / Q000601:surgery*