Changes in load distribution in the knee after opening-wedge or closing-wedge high tibial osteotomy.
The treatment of unicompartmental osteoarthritis of the knee by high tibial osteotomy has been carried out by closing-wedge osteotomy. The advantages for opening-wedge osteotomy are ease of procedure and improved correction with comparable short-term to midterm results. It is not known how the opening-wedge high tibial osteotomy procedure alters the load distribution between the medial and lateral compartments of the knee. The current biomechanical study investigated opening-wedge vs closing-wedge osteotomies in 5 pairs of cadaver knees. The results showed that at 5 degrees osteotomy, the closing-wedge provided superior results of load transfer from medial to lateral compartment than that seen with opening-wedge, but at 10 degrees osteotomy, there was no significant difference in load transfer in the knee compartments between the 2 surgery modes.
Orthopaedic Surgery Department, LSU Health Sciences Center-Shreveport, Shreveport, Louisiana 71130, USA.
Steven
S
Ogden
Debi P
DP
Mukherjee
Michael E
ME
Keating
Alan L
AL
Ogden
James A
JA
Albright
Richard E
RE
McCall
D000368:Aged; D000369:Aged, 80 and over; D001696:Biomechanical Phenomena; D006801:Humans; D007593:Joint Instability; D007719:Knee Joint / Q000502:physiology*; D008297:Male; D008875:Middle Aged; D020370:Osteoarthritis, Knee / Q000601:surgery; D010027:Osteotomy / Q000295:instrumentation* / Q000379:methods*; D013977:Tibia / Q000601:surgery*; D016474:Weight-Bearing / Q000502:physiology