- See:
TKR Menu:
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Early Failures:
- in the report by TK Fehring et al, the authors evaluated the causes of revision surgery;
- between 1986 and 1999, 440 patients with TKR were referred for revision surgery;
- of the 440 patients who had revision surgery, 279 (63%) had revision surgery within 5 years of their index arthroplasty:
- 105 of the 279 patients with early failures (38%) had revision surgery because of infection;
- 74 (27%) had revision surgery because of instability;
- 37 (13%) had revision surgery because of failure of ingrowth of a porous-coated implant;
- 22 (8%) had revision surgery because of patellofemoral problems;
- 21 (7%) had revision surgery because of wear or osteolysis.
- only eight of the 279 patients with early failures (3%) had revision surgery because of aseptic
loosening of a cemented implant;
- ref: Early Failures in Total Knee Arthroplasty. Thomas K. Fehring MD. CORR 2001;2001:315-318
- in the report by Scranton et al, the authors reviewed 33 patients who presented w/ persistent pain, inadequate knee
motion, or both after total knee arthroplasty;
- of 33 patients, 26 had inadequate motion treated by closed manipulation, arthroscopic manipulation,
or a modified open release manipulation;
- in 23 patients, these procedures were successful;
- of the 26 patients, 85% had a history of previous knee surgery or DM;
- average gain in range of motion was not different in comparing early (<12 weeks) manipulation versus late (>12 weeks) manipulation;
- 7 of the 33 patients presenting with pain, swelling, inadequate motion, or snapping sensations had either failure of bonding between
the polymethyl methacrylate and the components (4 patients) or painful fibrous intra-articular bands (3 patients);
- these patients were treated successfully either by recementing the components or by arthroscopic fibrous band release;
- ref: Management of knee pain and stiffness after total knee arthroplasty.
Scranton PE Jr.
J Arthroplasty 2001 Jun;16(4):428-35
Mechanisms of failure of the femoral and tibial components in total knee arthroplasty.
Radionuclide imaging of asymptomatic versus symptomatic total knee arthroplasties.
