TY - JOUR
T1 - Total knee arthroplasty for corticosteroid associated avascular necrosis of the knee
AU - Mont, Michael A.
AU - Myers, Thomas H.
AU - Krackow, Kenneth A.
AU - Hungerford, David S.
PY - 1997
Y1 - 1997
N2 - Despite their age, patients younger than 50 years who have collapse of their femoral condyles caused by steroid associated avascular necrosis have few options except total knee arthroplasty. There have been no specific reports of the results of total knee replacements for this disease. Between 1980 and 1993, 31 porous coated anatomic total knee replacements were performed in 21 patients younger than 50 years of age with avascular necrosis of the femoral condyles and tibial plateaus. There were 17 women and 4 men, with an average age of 36 years (range, 22-48 years). Seventeen of 21 patients had systemic lupus erythematosus, and all patients had a history of corticosteroid use. Patients underwent a complete clinical and radiographic evaluation at final followup that averaged 8.2 years (range, 2-16 years). Overall, there were 17 good and excellent results (55%). Eleven knees were revised for aseptic loosening (37%), and 3 additional knees (10%) ultimately were revised for deep sepsis. All 6 knees in patients with no diagnosis of systemic lupus erythematosus had excellent clinical results. There were only 11 of 25 successful outcomes (44%) in the patients with systemic lupus erythematosus. There were no differences in results when patients were stratified by degree of steroid use, cemented versus cementless fixation, or activity level.
AB - Despite their age, patients younger than 50 years who have collapse of their femoral condyles caused by steroid associated avascular necrosis have few options except total knee arthroplasty. There have been no specific reports of the results of total knee replacements for this disease. Between 1980 and 1993, 31 porous coated anatomic total knee replacements were performed in 21 patients younger than 50 years of age with avascular necrosis of the femoral condyles and tibial plateaus. There were 17 women and 4 men, with an average age of 36 years (range, 22-48 years). Seventeen of 21 patients had systemic lupus erythematosus, and all patients had a history of corticosteroid use. Patients underwent a complete clinical and radiographic evaluation at final followup that averaged 8.2 years (range, 2-16 years). Overall, there were 17 good and excellent results (55%). Eleven knees were revised for aseptic loosening (37%), and 3 additional knees (10%) ultimately were revised for deep sepsis. All 6 knees in patients with no diagnosis of systemic lupus erythematosus had excellent clinical results. There were only 11 of 25 successful outcomes (44%) in the patients with systemic lupus erythematosus. There were no differences in results when patients were stratified by degree of steroid use, cemented versus cementless fixation, or activity level.
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U2 - 10.1097/00003086-199705000-00019
DO - 10.1097/00003086-199705000-00019
M3 - Article
C2 - 9170373
AN - SCOPUS:0030973564
SN - 0009-921X
VL - 338
SP - 124
EP - 130
JO - Clinical Orthopaedics and Related Research
JF - Clinical Orthopaedics and Related Research
ER -