LCP Medial Proximal Tibia Plate 3.5 and 4.5

The LCP Medial Proximal Tibia Plates 3.5 and 4.5 are part of the LCP periarticular plating system. They are intended to buttress metaphyseal fractures of the medial tibia plateau, split-type fractures of the medial tibia plateau, medial split fractures with associated depressions and split or depression fractures of the medial tibia plateau. The plates may also be used for fixation of the proximal quarter (lateral and medial) of the tibia as well as segmental fractures of the proximal tibia. The 4.5 version may also be used for fixation of nonunions and malunions of the medial proximal tibia and tibia shaft, as well as opening and closing wedge tibial osteotomies.

The plates have a limited contact profile. The plate head is anatomically contoured to approximate the anteromedial proximal tibia. The plates feature 3 locking screw holes proximally, with trajectories parallel to the joint. These proximal locking head screws also converge in the lateral condyle. The 2 angled locking screw holes in the proximal part of the shaft converge with 2 of the proximal screws in the head of the plate.

The 3 convergent threaded screw holes in the head of the plate 4.5 accept 5.0 mm cannulated locking and 5.0 mm cannulated conical screws, while the plate 3.5 accepts 3.5 mm locking and 3.5 mm conical screws. The screw-hole pattern allows a raft of subchondral locking head screws to buttress and maintain reduction of the articular surface. This provides fixed angle support to the tibial plateau. Additionally, there are two 2.0 mm K-wire holes available for preliminary fixation with K-wires or meniscal repair with sutures.

Both plates are available in left and right versions. The 3.5 plate system is available from 220-hole lengths, the 4.5 version from 216-hole lengths. All plates come in either stainless steel or titanium.

57-year-old malemotor accident

Case provided by Phil Kregor, Nashville, USA

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