Stryker trident hip lawsuit acetabular psl cup recall. The stryker trident hip implant is a hip replacement system designed with ceramiconceramic components. Revision of previous unsuccessful femoral head replacement, cup. In august of 2009, hazelwood underwent total hip replacement surgery in sacramento, california. Listing a study does not mean it has been evaluated by the u. Pdf incomplete seating of the liner with the trident acetabular.
The stryker trident acetabular shell is a widely implanted uncemented acetabular component that can be used with multiple liners. The information contained in this document is intended for. Short to midterm followup of the tritanium primary acetabular. The stryker trident acetabular shell is a widely implanted uncemented acetabular component that can be used with. With the acetabulum exposed, bony defects, can be identified. Since 1999, orthopaedic surgeons have chosen strykers trident acetabular system for its effectiveness and track. Pdf canted seating of the stryker modular dual mobility. American academy of orthopaedic surgeons, rosemount, illinois2011. Trident acetabular system surgical protocol stryker rpa. In the specific case of ceramic inserts, a patented. The trident acetabular system from stryker is an uncemented acetabular system which includes crossfire polyethylene, x3 polyethylene, alumina ceramic, constrained liners, concentric and eccentric liners.
Despite the excellent track record with regard to the functional outcome and longevity, pinnacle depuy, harrisgalante zimmer and trident stryker have been associated with pld 1 5. The prosthetic femoral head and acetabular shell were modeled as rigid. The stryker trident acetabular shell is manufactured of titanium with an. The implants were the cluster acetabular shell trident psl ha. Feel confident you can meet the needs of each patient with the versatility of the trident acetabular shell offerings, all of which can be used with strykers advanced bearing options, like mdm x3, x3 polyethylene, and trident constrained liners. Idaho 2010 case opinion from the district of idaho us federal district court. Canted seating of the stryker modular dual mobility liner.
The positioner, like the reamer handle, has an easytoremove spring to simplify. Comparative analysis of current 3d printed acetabular titanium. Dimensions related to the cup wall solid, lattice and overall thickness. The patient was taken immediately back to the operating room where the acetabular liner appeared well seated. The stryker trident acetabular shell is a widely implanted. Comparative analysis of current 3d printed acetabular.
Download pdf copy stryker is proud to introduce the tritanium primary acetabular system, the only advanced fixation technology manufactured from a commerciallypure titanium matrix. Manufacturing defects could result in pain, bone fractures or other serious hip replacement problems which may require further surgery. A 75yearold woman who suffered a left femoral neck fracture underwent a left total hip arthroplasty using a stryker trident kalamazoo, mi hemispherical acetabular shell and modular dual. Stryker launches next generation trident ii acetabular system system features trident ii tritanium, building on trident brand legacy, combining the reproducibility of amagine additive.
Introduction this document is intended to provide magnetic resonance imaging mri. Trident tritanium acetabular system surgical protocol. The deviation regarding the difference in wall thickness will increase the gap between the shell and liner on one side and will decrease the gap between shell and liner on the opposing side, resulting in interference. The results of the titaniumcoated rm acetabular component at 20 years. The standard technique utilized for cup implantation was line to line reaming since the cup outer diameter is approximately 1. Trident tritanium acetabular shell crossfire polyethylene. Her surgeons implanted various stryker components including the trident psl cluster acetabular shell, a trident polyethylene insert and a stryker impl stem. The hip replacement recall was issued january 22, 2008, for two products from the stryker trident hip implant line. Seating of ceramic liners in the uncemented trident.
Trident psl shell 40 42 44 46, 48 50, 52 54, 56 58, 60 62, 64 66, 68. Acetabular exposure prior to reaming, acetabular exposure should be adequate and the anterior, posterior and superior walls should be directly visible. One commonly used ceramic implant is the trident system stryker orthopaedics, mahwah, nj, which has a titaniumbacked ceramic pressfit liner in a hydroxyapatitecoated, titanium alloy acetabular shell. This retrospective study aimed to compare the shortterm clinical and radiographic outcomes of a tritanium acetabular cup with those of a trident. Stryker trident hip implant defects hip replacement problems. G7 acetabular system figure 3 patient positioning the g7 acetabular system is designed to be used with all surgical approaches figure 3. Typical indications include acetabular revision, tumor, and cdh cases. Reaming is done linetoline, as the pressfit is built into the sizing e. Acetabular screw fixation was not applied in any of the primary tha procedures using tritanium. Mdm liner and x3 insert compatibility with trident and tritanium shells this publication sets forth detailed recommended procedures for using stryker orthopaedics devices and instruments. Canted seating of the stryker modular dual mobility liner within a. Acetabular system surgical protocol shelltoinsert compatibility anium shells 50003xxx, 50203xxx are approved for use with trident ceramic inserts in the european trit.
Stryker orthopaedics had identified that specific lots of trident psl acetabular shells may have a dimensional discrepancy. Italy, trident ii tritanium stryker, usa, mpact 3d metal medacta. Incidence of ceramic liner malseating in trident acetabular shell. Trident ii tritanium acetabular shell outcomes study. Pdf using intraoperative radiography to detect incomplete seating. The ongrowth cup was the uncemented trident ha coated cup stryker, mahwah, usa, a shell with peripheral loading of the acetabulum. The design freedom allowed by threedimensional 3d printing enables the production of acetabular offtheshelf cups with complex porous structures. When the patient moves, a ceramic femoral head pivots inside a ceramic acetabular cup inside the pelvis.
The trident tritanium tm acetabular shell revision studys primary outcome measure was the number of tritanium acetabular shells requiring revision or pending revision of the acetabular shell as defined by radiographic parameters due to instability or lack of fixation at 5 years postoperative. A 75yearold woman who suffered a left femoral neck fracture underwent a left total hip arthroplasty using a stryker trident kalamazoo, mi hemispherical acetabular shell and modular dual mobility mdm metal liner. There have been some reports of incomplete seating of the ceramic liner in the stryker trident acetabular system. Her surgeons implanted various stryker components including the trident psl cluster acetabular shell, a trident polyethylene insert and a. Trident acetabular system psl surgical protocol stryker meded. Trident tritaniu m ace tabular system surgical protocol. Penaltybased contact was used between the prosthetic femoral head, the liner, and the outer shell was modeled with coulomb friction at the interfaces. The stryker trident hip class action lawsuit was filed by raymond chasse, jr. Trident alumina ceramic inserts gain fixation within the shell by means of mating tapers. Stryker trident class action lawsuit filed over squeaking. We are a liquidator of sutures and other surgical items from ethicon, covidien autosuture, synthes, stryker, arthrex and are able to pass our savings on to you. Canted seating of the stryker modular dual mobility liner within a trident hemispherical acetabular shell. Stryker trauma, 5401146d, stryker trident psl ha solid back acetabular shell, 46mm esutures.
It may be coupled with a polyethylene liner or a titaniumbacked ceramic pressfit liner. They deliver extended battery life, improved ergonomics and increased durability compared to the companys system 7 models. Have confidence in a powerful combinationa system that builds on the legacy that has defined our trident brand for more than two decades, paired with the latest additive manufactured tritanium ingrowth technology or purefix ha. Stryker is one of the worlds leading medical technology companies and, together with its customers, is driven to make healthcare better. In addition, a depth gauge can be inserted through the screw holes and apex hole to determine the adequacy of shell seating. Triden tall poly acetabular system this publication sets forth detailed recommended procedures for using stryker orthopaedics devices and instruments. The stryker trident acetabular shell is manufactured of titanium with an improved locking mechanism and a hydroxyapatite outer coating to improve bony ongrowth and incorporation. Using intraoperative radiography to detect incomplete. Pdf purpose there have been some reports of incomplete seating of. Stryker report the shell has 72% porosity, a coefficient of friction of 1.
Acetabular shell mdm cocr liner poly insert femoral head table 1. The cup has a ha coating with ridges at the periphery where bone ongrowth and fixation is initiated. Pdf incidence of ceramic liner malseating in tridenta. Trident ii tritanium acetabular shell outcomes study the safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Postoperative radiographs demonstrated canted seating of the liner. Trident acetabular system psl surgical protocol the trident acetabular system utilizes the patented innerchange locking mechanism. Comparison of a highly porous titanium cup tritanium and. Stryker launches next generation trident ii acetabular system.
Our aim was to analyse and compare the designs of different 3d printed cups from multiple manufacturers delta tt, trident ii tritanium and mpact 3d metal. We compared the clinical and radiographic results between a tritanium cup and a conventional cup stryker trident ha over a short time period. Clinical and radiographic outcomes with a hydroxyapatite. The shells come in nohole, cluster hole and multiple hole variants, hemispherical and psl peripheral selflocking or rimfit geometries and are. This surgical technique is a guide to preparing the acetabulum for the trident allpoly acetabular system implants utilizing the above acetabular instruments. This unique locking mechanism helps provide a secure interface between the ceramic or polyethylene insert and the shell. For example, the trident acetabular cup has a significantly higher rate of squeaking when paired with an accolade stem compared to an omnifit stem both stryker. Once the acetabulum is implanted and the shell free of. Pressfit, hydroxyapatitecoated acetabular cup designs may offer a lower incidence of. Three fixation screws were noted, two in the superior lip of the acetabulum and second extending into. Download pdf copy since 1999, orthopaedic surgeons have chosen strykers trident acetabular system for its effectiveness and track record.
This is accomplished by incorporating two independent locking mechanisms in the shell. We sought to prevent incomplete seating through the use of intraoperative radiography. Stryker stryker system 8 orthopedic power tools ezout. It provides a roughened, textured surface on the acetabular shell, which helps provide. Trident acetabular hip system polyethylene inserts, stryker orthopaedics, multiple sizes. For crossfire and x3 polyethylene and trident alumina ceramic. The tritanium acetabular cup from stryker is an acetabular shell manufactured from tritanium which is a proprietary commercially pure titanium matrix. Both products are used in the socket portion of hip replacements and the psl version is the most commonly used of all stryker trident cups in the united states. Clinical and radiographic outcomes with a hydroxyapatite and. These power tools hold a charge maintain power and efficiency during long, challenging orthopedic procedures with strykers new system 8 power tools. One commonly used ceramic implant is the trident system stryker orthopaedics, mahwah, nj, which has a titaniumbacked ceramic. Stryker trauma, 5401146d, stryker trident psl ha solid.
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