The Wagner SL Revision Hip is a grit blasted titanium hip stem designed to gain distal fixation and rotational stability where there is extensive proximal bone loss. The principle of the Wagner stem is that the proximal bone will then recover. The implant is a monoblock, and is available in 190,...

The Tritanium Acetabular Cup from Stryker is an acetabular shell manufactured from Tritanium which is a proprietary commercially pure Titanium matrix.  Stryker report the shell has 72% porosity, a coefficient of friction of 1.01 and an average pore size of 546 microns. Clinical trials...

The Trinity Advanced Bearing Acetabulum System from Corin is a modular acetabular system which includes BIOLOX Delta ceramic-on-ceramic and ECiMa (vitamin E) highly cross-linked polyethylene bearing options. The shell is hemispherical, and has a plasma pure titanium and HA (Bonit) coating....

The Trilogy Longevity Constrained Liner (aka the Epsilon socket) is a constrained socket, available as a liner for the Zimmer Trilogy and Trabecular Metal acetabular shells or in a version intended for cementing into a shell. It has a unique design that aims to improve on the range of motion...

The Trilogy Acetabular Cup system from Zimmer is an uncemented socket which is an evolution of the Harris-Galante and HGP II cup designs. Options include a uni-hole shell, which allows visual confirmation of seating, a non-holed shell, cluster hole, multi hole and spiked shell configurations....

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. The shells come in no-hole, cluster hole and multiple hole variants, hemispherical and PSL...

The TriboFit is an unusual socket made of a semi-flexible translucent material which is highly hydrophilic and which therefore maintains a layer of fluid around the femoral head. It is said to be associated with almost no wear as there is no physical contact between components. The associated...

The Tri-Lock Bone Preservation Stem is an uncemented tapered wedge design primary hip replacement stem. The original Tri-Lock was introduced in 1981 as the first proximally coated tapered-wedge hip stem available. Geometrical features which preserve bone include a reduced lateral shoulder and a...

The Trabecular Metal Osteonecrosis Intervention Implant from Zimmer is intended for use in osteonecrosis of the femoral head, in Ficat and Arlet Stage 1 or 2 (ie precollapse) disease.  A study by Varitimidis et al (1) suggested an improvement in function after implantation, but no effect...

The Trabecular Metal Augment and Restrictors from Zimmer are a selection of structural augments intended for revision or difficult primary hip reconstructions associated with significant bone loss.  This is part of the Zimmer TMARS (Trabecular Metal Acetabular Revision System).  ...

The Furlong hemiarthroplasty system is intended for use after hip fracture. The system comprises a cemented double taper stem, with long stem options, or a Furlong HAC uncemented stem. Head options are either bipolar or physiological (large monopolar head), and the 12/14 taper allows for later...

The TaperLoc Microplasty from Biomet is a short femoral stem which is essentially a shortened version of the Taperloc stem (35mm shorter). This is a collarless, flat tapered wedge design, made from porous, plasma sprayed titanium. Lombardi et al give some useful advice for insertion. They...

The Symbios hip system is a cementless, HA coated, Swiss manufactured hip system which comes in proximally coated, fully coated, modular and monoblock varieties. The stem is titanium and is either anatomic (the SPS) or straight stem (the Harmony). The system is marketed with preoperative...

The Summit® Cementless Hip Replacement System from Depuy-Synthes is a tapered cementless titanium hip stem, whose features include a tapered neck geometry, a Porocoat porous or DuoFix HA coating, an anatomical medial curve, a grit blasted diaphyseal region and a polished distal tip to reduce...

The Summit Cemented Hip Replacement System from Depuy-Synthes is a cemented stem which is a modification of the original Charnley design. The aims of these modifications were to increase torsional stability, increase offset options and improve the cement mantle (for example with the integral...

According to the manufacturer, the Spacer G is a temporary implantable device made of a load-bearing structure in AISI 316L stainless steel. The device is coated with gentamicin bone cement to assist the treatment of an infected total hip replacement using the 2-stage method. The device is...

The SMF Short Modular Femoral Hip System from Smith and Nephew is an uncemented titanium stem, approximately 20% shorter than conventional stems. It has a proprietary high-friction porous (mean pore size 200 microns) coating known as Stiktite ™ and has a cobalt-chrome modular neck design....

The Silent hip is a tapered press-fit, textured implant designed to sit in the femoral neck without contacting the lateral cortex. It was launched in 2009 and remains in clinical trials. Links to clinical trials Multi-Centre Study to Assess the Long-Term Safety and Efficacy of the Silent...

This cemented monoblock Arcom ® polyethylene cup has a 3mm integral flange and 3mm PMMA spacers on the surface. The design includes a 15 degree anti-dislocation rim and an anti-impingement recess, intended to increase the range of motion of the articulation. Intended for use with the SHP...

According to the manufacturer, the Selexys Dual System provides a patient with a greater range of movement than many other hip systems, as well as joint stability. They say that it is therefore suitable for treating patients with profound instability and where diseased profiles place a...

Amplitude's Saturne Double Mobility Cup is cementless and has anatomic cut-out to resist dislocation.

The ReCap hip resurfacing from Biomet has the following design features: a titanium porous coated socket, with or without hydroxyapatite coating; anti-rotation fins on the socket to enhance stability; a thinner acetabular component with the aim of removing less bone than other systems; a 0.5mm...

The R3 Acetabular System from Smith and Nephew includes no-hole and mulit-hole options, constrained liners and large bearing options. The latter include XLPE, Oxinium, CoCr, and Biolox. Liners are designed to sit flush with the rim of the shell, reducing the potential for impingement. The...

The Proxima Short Stem from Depuy is a proximally loading short stem hip prosthesis made of forged titanium alloy, with a Duofix™ porous coating and hydroxyapatite surface coating. It is available in nine sizes with standard and high-offset variants. The paper by Toth (1) gives several...

The device has a mobile polyethylene liner which is locked onto a femoral head that articules in a metallic acetabular shell. According to Smith & Nephew, the system was designed for patients, in primary and revision cases, who are susceptible to dislocation and therefore in need of greater...

The Pinnacle Acetabular Cup System from Depuy comprises a 180 degree titanium shell with coating options including Porocoat (titanium sintered beads) Duofix (Porocoat with an HA coating) and Gription (high friction porous surface). The shell is designed to accept polyethylene, ceramic and metal...

The Novae Dual Mobility Cup is designed to reduce the risk of dislocation in patients at high risk including those with a history of dislocation, revision surgery and major tumour resection. Socket options include cemented (the "Stick"), uncemented with an HA coating (the "...

The MS-30 (Morscher-Spotorno) femoral stem from Zimmer is a cemented, collarless stem which is available in both matt and highly polised versions. Design features include three tapers and a rounded trapezoidal cross section. The purpose of the flange on the lateral aspect of the stem is to...

The MITCH hip resurfacing system is a metal on metal hip resurfacing device manufactured by Finsbury for Stryker. The bearing is a high precision ‘as cast’ high carbon cobalt chrome bearing. Finsbury has experience of hip resurfacing systems and markets its own system (the ADEPT...

The MIHR International Hip Resurfacing is a cast high-carbon cobalt chrome metal-on-metal hip resurfacing device intended to facilitate “small incision” surgery, and which has an appropriately specialised set of instruments for doing so. These include a retractor, femoral head...

The Corin MiniHip is a short-stemmed uncemented device intended to be more conservative on the femoral side than conventional femoral components, and requiring a mid-neck resection. The system is compatible with Corin’s Cormet resurfacing, and total hip systems, allowing some...

The Metha Short Hip Stem is a modular femoral stem designed for metaphyseal anchorage in the proximal femur. The curved stem has a rounded tip and sits against the dorsolateral cortex of the proximal femur. There is no collar. It varies in length from 9.75 to 12.25cm. The modularity allows the...

The Modular Dual Mobility acetabulum from Stryker (MDM) complements the ADM system, but is based on the Trident or Tritanium uncemented acetabular shells. The polyethylene component is manufactured from X3 polyethylene . The femoral head is either 22.2mm for smaller size shells, or 28mm. A CoCr...

Designed by Morrey in 1984, this conservative bone preserving femoral component has the longest track record in short stem devices. This is a neck-retaining device. The Mayo stem has a proximal wide trapezoidal cross-section in order to gain multipoint contact within cortical bone, and is wedge...

The Maxera ™ Cup from Zimmer is a large diameter ceramic acetabular component. The ceramic is Biolox delta, the design includes a 180 degree full hemisphere, with three anti-rotation fins. Large diameter heads ranging from 32mm to 48mm are available. The bearing is intended for younger...

The MARATHON cemented acetabulum is a cross-linked polyethylene socket for hip replacement. The device has a flange which can be trimmed after trialling and before insertion. The socket has an alignment wire which is supplied separately and should be affixed to the polyethylene component before...

The Global Tissue Sparing (GTS) primary hip stem is a short uncemented hip stem intended to spare bone and possibly soft tissue. In an early series of 81 stems in 80 patients, there was one calcar fracture and no loosening at a mean of 16 months (6 to 24 months). Reference: Morales...

The Furlong HAC Coated Total Hip Replacement Stem is a fully HA coated titanium femoral component designed to provide a good metaphyseal fit. It has a rectangular cross section proximally, a cone shaped transition section and a distal stem. The canal is overreamed to allow space for the stem....

The Furlong EVOLUTION stem is a modification of the highly successful Furlong HAC hip. The stem includes the following modifications: a reduced lateral shoulder for ease of insertion optimised neck geometry collared and non-collared options zoned coating with...

The Zimmer Fitmore stem system is a curved, short (44 to 60 mm in length), uncemented femoral stem with a trapezoidal cross section and triple taper geometry, available since 2008. The device is manufactured from Zimmer’s Protasul™ titanium alloy, has a proximal Ti-plasma coating and...

The Exeter Comtemporary X3 RimFit socket is a cemented socket for primary hip arthroplasty. The RimFit reamer is designed to flatten the rim of the socket in order to maxmise pressurisation and cement penetration into acetabular bone. 

The Exeter Trauma Stem is a lower-cost monobloc stem for hip hemiarthroplasty in the context of an intracapsular hip fracture. The surface finish differs from that of the Exeter stem in that it has not been hand polished. A surgical technique can be found here .    Reference:...

The Exeter hip is a cemented, polished tapered stem hip replacement with a long pedigree. The device was developed in 1969 and intended as a cemented implant for insertion by the posterior approach. In 2010 the device celebrated its millionth implantation, 40 years of clinical use and, possibly...

The Exceed ABT (Advanced Bearing Technology) Acetabular System from Biomet is an uncemented acetabular system applicable to both primary and revision hip implantations. Bearing choices include C2A-Delta Ceramic, M2A Series (metal) and E1 Anti-oxidant Infused polyethylene, which includes a number...

The Elite Plus Ogee Cup from Depuy is a UHMWPE cemented acetabular component for primary or revision hip arthroplasty.  In the 2011 National Joint Registry report, the socket had an ODEP 10A rating, and was implanted in 13% of all registered primary hip replacements. When used with the...

The Elite Plus Cemented Cup from Depuy-Synthes is a cemented acetabular component which is most often implanted with the Charnley stem. In the 2011 National Joint Registry report, the cup had an ODEP 10A rating and was used in 9% of primary hip implantations. The Elite plus flanged socket...

The Durom hip resurfacing is a metal-on-metal hip resurfacing introduced in 2003. The device has a Metasul® bearing, which is wrought-forged Cobalt Chrome – the Protasul-21 WF alloy. This bearing was developed by Sulzer (subsequently Centerpulse, itself acquired by Zimmer in 2003), and...

Tornier's Dual Mobility Cup is available in cementless and cemented versions for primary replacement of the hip joint. The device has a metal back which, according to the manufacturer, ensures the joint range and stability are maintained. This image is provided courtesy of Tornier.

The DeltaMotion bearing from Finsbury is a large ceramic-on-ceramic bearing system. Femoral head diameters range from 32 to 48mm, shell sizes from 42 to 66mm. This system is said to be suited to patients with smaller acetabulae who would benefit from a large diameter bearing. The ceramic...

The CUT femoral neck endoprosthesis is a short stem device with a modular dual cone proximal component that allows the selection of different offsets and versions once the stem has been implanted. The implant is made from CoCrMo alloy and has a macroporous structure. The stem is curved at the...