The design of periprosthetic plates has to overcome a number of technical issues. There is a high incidence of mobilisation of plates in multiple fractures, the presence of a prosthesis makes screw positioning difficult, and poor quality bone often results in screw pull-out and an early breakdown of the fracture.

Intrauma has developed a range of plates specifically for the treatment of periprosthetic fractures of the hip, knee and humerus. The use of O’nil periprosthetic plates ensures secure fixation of the fracture, early patient mobilisation and fracture healing times similar to normal fractures.

The patented conical screw locking system between the head of the screw and the holes in the plate ensures primary stability by equally distributing the forces along the length of the plate. Pre-shaped plates with a semi-tubular profile simplify plate positioning and the multi-planar screw holes ensure optimum fixation even in more complex fractures.

The O’nil Iron Lady plate for periprosthetic fractures of the hip is a self-supporting structure where cerclage can be used simply to fix fragments in place rather than to support the plate. As with other O’nil plates, the unique screw locking mechanism minimises pressure on the bone, helping to preserve the vascularity of the periosteum, allowing early rehabilitation and reducing healing time.


  • Anatomically pre-shaped low-profile semi-tubular plates
  • Multi-planar screw holes simplify plate positioning and ensure primary stability
  • Plates made of steel AISI 316 LVM – ISO 5832-1, to allow MRI, screws and bushings made of titanium Ti6AI4V – ISO 5832-3
  • Cerclage option using eyelet with conical locking


  • Anatomically pre-shaped low-profile semi-tubular plate
  • Multi-planar screw holes provide primary stability
  • Simple and intuitive instruments
  • Plates made of steel AISI 316 LVM – ISO 5832-1, to allow MRI, screws and bushings made of titanium Ti6AI4V – ISO 5832-3
  • Reduced surgical time


  • The patented screw-plate locking system eliminates the possibility of cross-threading between the head of the screw and the plate
  • Anatomically pre-shaped low-profile semi-tubular plate
  • 6 holes in the distal part of the plate provide excellent fixation even in osteoporotic bone
  • Plates made of steel AISI 316 LVM – ISO 5832-1, to allow MRI, screws and bushings made of titanium Ti6AI4V – ISO 5832-3
  • Available in 2 lengths, in right and left versions
SupportRefL. mmHoles
Iron Lady Extra Curved long 135.1000 300 18
Iron Lady One short 135.1001 200 14
Iron Lady Plus Curved medium 135.1004 249 16
Diaphyseal humerus short 135.1005 120 8
Diaphyseal humerus long 135.1006 180 10
Femur periarticular (L) medium 152.3001 179 7+5
Femur periarticular (R) medium 152.3002 179 7+5
Femur periarticular (L) long 152.3003 254 7+8
Femur periarticular (R) long 152.3004 254 7+8
Femur periarticular (L) extra long 152.3005 327 7+11
Femur periarticular (R) extra long 152.3006 327 7+11
Eyelet 3,5, material Titanium Grade 5 130.3200    
Eyelet 150.4500    
Threaded eyelet 150.4501    
ScrewsøL. mm
Autolocking screws 3.5mm 10mm to 70mm
ScrewsøL. mm
Autolocking screws 5.0mm 12mm to 110mm
Instrument tray 3.5 and 5 Series SET30, SET50

Linked Products


Information about the article. 13 LEGISLATIVE DECREE NO. June 30, 2003 n.196. This site uses cookies to help provide a better browsing experience to the user. Continuing to browse this site you consent to the use of cookies on your device. read all