Heterotopic ossifications subsequent to knee arthroplasty.
The occurrence of heterotopic ossifications constitutes a rare but possible complication in knee arthroplasty surgery. The authors retrospectively reviewed data for more than 250 patients submitted to knee arthroplasty with the purpose of ascertaining the incidence of the occurrence of heterotopic ossifications after surgery and of understanding any clinical repercussions and possible risk factors. A total of 14 cases of heterotopic ossifications were observed out of 276 knee arthroplasties (4.7%). Lesions were grade 1: 4, grade II: 3, grade III: 7. The authors stress the importance of local factors as compared to general ones and the need to adopt a respectful surgical method, avoiding notching or excessive trauma to the periosteum, as well as the need to define parameters in order to single out subjects at risk and in whom prophylaxis should be administered.
Tigani
D
D
Istituti Ortopedici Rizzoli, Bologna.
Marinelli
A
A
Bianchi
G
G
Trentani
P
P
Trentani
F
F
Antonioli
D
D
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee / Q000009:adverse effects*; D006801:Humans; D015994:Incidence; D008875:Middle Aged; D009999:Ossification, Heterotopic / Q000453:epidemiology / Q000209:etiology*; D012189:Retrospective Studies; D012307:Risk Factors