[Experimental study of fracture healing promotion with mechanical vibration in rabbits].
Under aseptic operation, a 0.3mm defect each was resected in the middle shaft of both radii in 54 rabbits. One of 4 groups was subjected to vibration along the long axis of right radius in each healing stage. The feature of fracture healing was evaluated with X-ray film, pathological examinations and measurement of maximum resistance to bending force and pressing stress. The authors came to these preliminary results: (1) The vibration (12.5 approximately 200 Hz) promoted fracture healing; (2) A significant acceleration of fracture healing was seen at the vibrated radius in 3 approximately 4 weeks.
Affiliated Drum Tower Hospital, Nanjing University Medical College.
Z B
ZB
Han
L P
LP
Chen
X Z
XZ
Yang
D000818:Animals; D001696:Biomechanical Phenomena; D005260:Female; D017102:Fracture Healing; D008297:Male; D011817:Rabbits; D011884:Radius / Q000503:physiopathology; D011885:Radius Fractures / Q000503:physiopathology*; D013997:Time Factors; D014732:Vibration / Q000627:therapeutic use*