The Journal of Bone and Joint Surgery, Vol 70, Issue 4 491-499, Copyright © 1988 by Journal of Bone and Joint Surgery, Inc
A comparison of primary and revision total knee arthroplasty using the kinematic stabilizer prosthesis
AD Hanssen and JA Rand
Department of Orthopedics, Mayo Clinic, Rochester, Minnesota 55905.
The first 121 arthroplasties (in 105 patients) in which the cemented
kinematic-stabilizer total knee prosthesis was used for primary
arthroplasty or surgical revision at the Mayo Clinic were reviewed.
Sixty-six patients (seventy-nine arthroplasties) were followed for a mean
of thirty-seven months. There were fifty-three revision and twenty-six
primary arthroplasties. The average range of motion in both groups
increased from 95 to 101 degrees. Although none of these patients could
ascend stairs without support before the operation, thirty-two (51 per
cent) could do so at the time of the final follow-up. The incidence of
moderate or severe pain was reduced from 86 to 6 per cent. Moderate or
severe ligamentous instability had been present in thirty-three knees (42
per cent) preoperatively, but only five knees had significant medial,
lateral, anterior, or posterior instability at final follow-up. The
Hospital for Special Surgery knee score increased from an average of 56
points to 83 points in all of the knees. At follow-up, the patients who had
had primary arthroplasty had 92 per cent good or excellent results and the
patients who had had surgical revision had 81 per cent good or excellent
results (p less than 0.05). There was no significant difference in the
results between the patients who had osteoarthritis and those who had
rheumatoid arthritis. Over-all, 85 per cent of the results were good or
excellent at final follow-up. Tibial radiolucent lines of one to two
millimeters were observed in 29 per cent of the knees at
follow-up.(ABSTRACT TRUNCATED AT 250 WORDS)
CiteULike 
Connotea 
Del.icio.us 
Technorati What's this?
