From: Heterotopic ossification following hip arthroplasty: a comparative radiographic study about its development with the use of three different kinds of implants
Effect
Point estimate
95 % Wald confidence limits
TriboFit® vs endoprosthesis
1.976
1.251–3.121
Ceramic-ceramic-coupled THR vs endoprosthesis
1.911
1.326–2.752
Presence of previous HO vs absence of previous HO
2.322
1.073–5.025