Fracture of the central polyethylene tibial spine in posterior stabilized total knee arthroplasty.
Between 1993 and 1998, 332 I-BII (Insall Burstein II) prostheses were implanted in our department. We studied 5 cases of tibial polyethylene spine fractures. The fractures occurred 3 to 5 years following the surgery. All cases with fractures had mild medial laxity that was noted on follow-up of 2 to 3 years following arthroplasty. One also developed mild hyperextension. All the patients had a revision surgery. In 2 cases, the polyethylene was changed to a thicker one, together with medial reinforcement. Three cases were revised to a rotating hinge prosthesis.
Hendel
David
D
Department of Orthopaedics, Tel Aviv University, Holon, Israel.
Garti
Avraham
A
Weisbort
Moshe
M
D000368:Aged; D019645:Arthroplasty, Replacement, Knee; D005260:Female; D006801:Humans; D007720:Knee Prosthesis; D008297:Male; D008875:Middle Aged; D011095:Polyethylenes; D011475:Prosthesis Failure; D013977:Tibia
D011095:Polyethylenes