TrendHip® Hip Stem System
Traditional hip replacement
The TrendHip® design concept combines the traditional features of a straight tapered and fully surface coated cementless hip stem. The implant range is available for standard and lateralized offset stems (+6 mm). The TrendHip® triple tapered shape additionally supports the implant positioning inside the femoral cavity.
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Cementless Design
The cementless rectangular self-locking stem enables a reliable primary stable implant position and a direct secondary periprosthetic bone contact to the coated surface. The hydroxylapatite surface is a combined double layer of a rough titanium plasmaspray coating in the proximal stem part with decreasing thickness in the mid third stem section and smooth coating distally. Medial and horizontal grooves increase the bone contact area and axial implant stabilization.
Cemented Design
The cemented TrendHip® stem is a rectangular selflocking straight polished hip stem. It is triple tapered and produced from polished stainless steel. Cemented TrendHip® stems require a nominal thickness of cement mantle which can be influenced by the rasp and the implant size selection. The rasp size corresponds to the respective implant size.
Acetabular Components
TrendHip® hip stems are available with 12/14 tapers for modular heads. TrendHip® can be combined with Bipolar Cups or cemented and cementless acetabular implants for total hip arthroplasty. The modular cup system Plasmafit® allows a 36 mm articulation with a vitamin E stabilized highly crosslinked polyethylen Vitelene® starting by a 50 mm outer diameter.
Literature
Picaud J
[Cementless femoral stem PAVI]. Impérial. 2012 Jan; 287-96. French.
Alexander Grimberg, Volkmar Jansson (Wissenschaftlicher Direktor), Jörg Lützner, Oliver Melsheimer, Michael Morlock, Arnd Steinbrück
Endoprothesenregister Deutschland (EPRD). Annual Report 2019. Berlin, 2019. https://www.eprd.de/Publikationen/EPRD_Jahresbericht_2019.pdf
Haversath M, Lichetzki M, Serong S, Busch A, Landgraeber S, Jäger M, Tassemeier T (2020)
The direct anterior approach provokes varus stem alignment when using a collarless straight tapered stem. In: Archives of orthopaedic and trauma surgery. DOI: 10.1007/s00402-020-03457-9.