ZIMMER BIOMET
Avenir Complete
Cementless femoral stem
A rectangular cementless stem with smoothed edges, a fully polished neck and titanium/hydroxyapatite coating.
View official product reference ↗SURGERY / DF TRAUMA
Implants & Biomaterials
Understanding Hip, Knee and Hand Replacement Implants
An educational guide to the design, materials and fixation of orthopaedic implants, with particular emphasis on hip replacement, knee replacement, hand reconstruction and fracture fixation.
Implant selection is individual. Anatomy, bone quality, diagnosis, medical history, available evidence and surgeon assessment all matter; no single brand or material is best for every patient.
01 — Hip implants
What Is a Hip Replacement Made Of?
A total hip replacement recreates the ball-and-socket joint with several matched components. The shell sits in the pelvis, a liner creates the inner bearing surface, the femoral head moves within that liner, and the stem transfers load into the femur.
Acetabular shell
A metal outer cup fixed to pelvic bone.
Liner
The bearing surface locked inside the shell.
Femoral head
The new ball, commonly ceramic or metal.
Taper connection
The precision junction between head and stem neck.
Femoral stem
The component seated within the upper femur.
Femoral stems
Geometry and fixation are selected together.
Standard stems provide broad reconstruction options. Short stems may preserve more proximal bone in selected anatomy. Cemented stems gain immediate mechanical fixation within a PMMA mantle; cementless stems rely on press-fit stability and later osseointegration. Longer or modular stems may be needed in revision surgery or major bone loss.
Verified distinction: Accolade II is a Stryker cementless stem family. Exeter is a separate cemented Stryker system. Availability varies by market, and inclusion here does not state current clinical use by DF Trauma.
ZIMMER BIOMET
Taperloc Complete
Cementless femoral stem
A flat tapered-wedge stem available in full-length and reduced-length Microplasty configurations.
View official product reference ↗SMITH+NEPHEW
POLARSTEM
Cementless and cemented stem family
A stem platform with distinct cementless and cemented variants; fixation method and surface differ by configuration.
View official product reference ↗STRYKER
Accolade II
Cementless femoral stem
Official reference for stem geometry, sizing and compatible system documentation.
View official product reference ↗Cemented Exeter vs cementless Accolade II
Reduced, standard and revision stem examples
Proximal fixation and diaphyseal revision fixation
These images compare fixation concepts, not stem length alone: Accolade II is a primary proximally engaging design, whereas REDAPT is a revision platform intended to obtain fixation farther down the femur when required.
CERAMTEC
BIOLOX delta / forte / OPTION / CONTOURA
Ceramic materials and head configurations
BIOLOX delta is a zirconia platelet-toughened alumina composite; forte is an earlier alumina generation; OPTION adds a metal adapter sleeve; CONTOURA identifies an anatomically contoured head design.
View official product reference ↗SMITH+NEPHEW
OXINIUM
Oxidized zirconium material technology
OXINIUM is oxidized zirconium—not conventional alumina ceramic—and is used as a bearing-surface technology in selected hip and knee systems.
View official product reference ↗Femoral heads — material matters
Ceramic vs Metal Hip Replacement Heads
Modern ceramic heads are hard, smooth and commonly paired with highly cross-linked polyethylene; selected systems also allow ceramic-on-ceramic bearings. Metal heads, usually cobalt–chromium alloy, are most often paired with polyethylene. Diameter, taper compatibility, liner design and the condition of the stem junction all influence the choice.
Ceramic considerations
Low wear and chemical stability are advantages. Rare fracture, audible noise in some ceramic-on-ceramic bearings and strict component compatibility remain relevant.
Metal considerations
Long clinical experience and mechanical toughness. Wear debris and corrosion at modular junctions must be considered in the complete implant context.
Acetabular cups & bearing surfaces
The shell is not the bearing surface.
The metallic acetabular shell provides fixation to bone. A separate polyethylene or ceramic liner locks inside and articulates with the femoral head. Press-fit shells may use porous titanium, hydroxyapatite and optional screws; cemented all-polyethylene cups use a PMMA mantle. Revision shells may add augments, multiple screws or specialised geometries.
Trident II is a verified Stryker acetabular family. Official terminology includes hemispherical and peripheral self-locking (PSL) shell options, plus Tritanium variants. Exact liner compatibility is system-specific.
STRYKER
Trident II / Tritanium
Acetabular shells, liners and porous fixation
The official system reference shows hemispherical and PSL shell options, liners and porous Tritanium variants. Component compatibility is system-specific.
View official product reference ↗Verified product visuals: a primary press-fit acetabular system and an exploded dual-mobility construct. Brochure and manual covers are intentionally excluded from this product gallery. Exact components must never be mixed outside manufacturer-approved compatibility.
Stability concepts
What Is a Dual Mobility Hip Replacement?
A standard bearing has one principal articulation between head and liner. Dual mobility adds a small head captured within a larger mobile polyethylene component, creating inner and outer articulations. This may increase jump distance and be considered when instability risk is important, but it introduces specific wear, compatibility and intraprosthetic-dislocation considerations.
STRYKER
Trident II Modular Dual Mobility
Dual-mobility bearing option
Official system reference for matched shells, liners and mobile polyethylene components. Only manufacturer-approved combinations should be used.
View official product reference ↗Fixation comparison
What Is the Difference Between Cemented and Cementless Hip Implants?
Both are established methods. The decision depends on bone quality, anatomy, fracture risk, implant design, age, diagnosis and surgeon judgement. Hybrid fixation combines methods—for example, a cemented stem with a cementless cup.
| Feature | Cemented | Cementless |
|---|---|---|
| Initial fixation | PMMA mantle interlocks with prepared bone | Press-fit geometry and surface friction |
| Longer-term mechanism | Mechanical load transfer through cement | Bone ongrowth or ingrowth on porous surface |
| Selection factors | Often useful where reliable immediate fixation is preferred | Requires suitable bone and implant-specific stability |
| Neither means | Old-fashioned or weak | Automatically newer, better or longer lasting |
Ceramic hip resurfacing
ReCerf
Hip resurfacing caps the prepared femoral head instead of replacing it with a stem and uses a matching acetabular component. ReCerf is MatOrtho’s ceramic-on-ceramic resurfacing system. It is a specialised option: bone quality, femoral-head anatomy, diagnosis, age, activity profile and surgeon training require careful assessment.
Regulatory availability and evidence continue to evolve. It is not suitable for everyone and is not free of complications. Inclusion here is educational and does not state current clinical use by Dr. Fernández-Fernández.
Official MatOrtho resource02 — Knee implants
What Does a Total Knee Replacement Look Like?
A total knee replacement resurfaces the end of the femur and top of the tibia. A polished metal femoral component moves against a polyethylene insert secured to a tibial baseplate. A polyethylene patellar component may be used when indicated.
STRYKER
Triathlon
Primary total knee system
Official reference for femoral components, tibial baseplates, polyethylene inserts and patellar options.
View official product reference ↗SMITH+NEPHEW
OXINIUM
Oxidized zirconium bearing technology
A material technology available in selected knee systems; it is not a stand-alone complete knee implant model.
View official product reference ↗Types of replacement
Total and partial replacements address different disease patterns. Cruciate-retaining, posterior-stabilised and more constrained designs manage ligaments and stability differently.
Cemented or cementless
Cemented components use PMMA. Cementless designs use porous bone-contact surfaces and require appropriate bone and initial stability. Neither is automatically preferable for every patient.
Standard vs stemmed
A standard keel or peg is not the same as a long stem extension. Stems, cones and augments may bypass weak bone or reconstruct defects in selected complex primary and revision cases.
STRYKER
Triathlon Cementless / Tritanium
Porous cementless knee components
Official reference for porous fixation options in the Triathlon portfolio.
View official product reference ↗SMITH+NEPHEW
CORI Surgical System
Robotic and digital surgical assistance
CORI is a surgical-assistance platform used in selected joint-replacement workflows. It is neither an implant nor a material, and it is not automatically required by a particular implant brand.
View official product reference ↗Triathlon · Stryker
A representative modern knee portfolio
Triathlon includes primary total-knee options and a cementless portfolio; the separate Triathlon TS system illustrates stemmed and augmented constructs for higher-constraint or revision situations. These references explain design categories—not superiority, universal suitability or confirmed routine use by Dr. Fernández-Fernández.
03 — Hand implants
What Implants Are Used for Thumb Arthritis?
Thumb basal-joint osteoarthritis affects the trapeziometacarpal joint. A total CMC replacement typically combines a small cup in the trapezium, a stem in the first metacarpal and modular articulating components. Prosthetic replacement is one of several surgical strategies and requires careful patient selection.
KERIMEDICAL
TOUCH CMC 1
Thumb CMC total joint implant
Official patient information describes a cementless dual-mobility system with a trapezial cup, modular neck/liner and metacarpal stem.
View official product reference ↗GROUPE LÉPINE
MAÏA
Thumb CMC total joint implant
The verified reference describes a dual-mobility system with a trapezial cup, modular neck and anatomically shaped metacarpal stem with porous titanium and hydroxyapatite coating.
View official product reference ↗Clinical use of TOUCH, MAÏA or any other named hand implant by Dr. Fernández-Fernández is not asserted here; the systems are included as educational product references.
04 — Fracture fixation
Fracture Fixation Implants
Plates hold bone fragments in a planned relationship while healing occurs. Their shape follows the anatomy and indication: examples include distal-radius, ankle, femoral and periprosthetic plates. Conventional screws compress plate to bone; locking screws engage the plate to create an angle-stable construct.
Titanium and stainless-steel systems have different mechanical and handling characteristics. Plate length, screw trajectory, working length and bone quality are indication-specific; implants are not interchangeable simply because they look similar.
ARTHREX
Titanium Wrist Plating System
Distal-radius and wrist fixation
A modern titanium portfolio of volar, dorsal and fragment-specific plate geometries with compatible locking and cortical screws.
View official product reference ↗SKELETAL DYNAMICS
GEMINUS
Distal-radius volar plating system
A dual-head volar plate design with planned distal screw trajectories and a hook-plate option for selected volar marginal fragments.
View official product reference ↗Ankle plates
Anatomical plates and screw trajectories vary by fracture pattern and soft-tissue conditions.
Femoral plates
Long constructs may bridge comminution and distribute load across a wider segment.
Periprosthetic fixation
Specialised plates, cables and screw options may work around existing implants.
05 — Biomaterials
What Are Orthopaedic Implants Made Of?
Implant materials are selected for a job: carrying load, creating a low-friction bearing, attaching to bone or gradually resorbing. The finished system—not an isolated material—determines compatibility and performance.
Titanium alloys
Stems, shells, baseplates and plates
Strong, relatively light and compatible with porous surfaces for bone ingrowth.
Cobalt–chromium
Bearing heads and femoral knee components
Hard and wear resistant; metal-related factors still require implant-specific consideration.
Advanced ceramics
Femoral heads and selected liners
Very hard, smooth bearing material with low wear; compatibility, noise and rare fracture remain relevant.
Highly cross-linked polyethylene
Hip liners and knee inserts
A durable polymer bearing surface; thickness, design and matching components matter.
PMMA bone cement
Mechanical fixation and load transfer
Acrylic cement interlocks with prepared bone. It is not ordinary household glue.
Porous metal & hydroxyapatite
Bone-contact surfaces
Designed to support initial grip and later biological fixation when conditions permit.
STRYKER
Tritanium
Porous titanium fixation technology
Official Trident II reference for an additively manufactured porous structure used in selected acetabular shells.
View official product reference ↗CERAMTEC
BIOLOX
Advanced ceramic bearing materials
Official reference for alumina and zirconia-toughened alumina ceramic generations and component configurations.
View official product reference ↗SMITH+NEPHEW
OXINIUM
Oxidized zirconium surface technology
A distinct oxidized-zirconium material technology; it should not be described as alumina ceramic.
View official product reference ↗Grafts & substitutes
Autograft, allograft and synthetic substitutes fill different biological or structural roles. They are not permanent joint bearings and evidence is application-specific.
Resorbable & nerve-protection materials
Selected polymers, collagen wraps and conduits may support repair or protect tissue in particular reconstructions. They differ fundamentally from metal or ceramic joint implants.
PRP and orthobiologics
PRP is an autologous blood-derived adjunct—not a prosthetic implant. Preparation methods, indications and evidence vary; universal regeneration or faster healing should not be promised.
Manufacturers as references — not rankings
Evidence and compatibility come before branding.
Stryker, Zimmer Biomet, Smith+Nephew, CeramTec, MatOrtho, KeriMedical, Groupe Lépine, Arthrex and Skeletal Dynamics are examples of established manufacturers with different portfolios. Inclusion here is educational, not an endorsement or a statement that every system is used in DF Trauma practice.
Implant selection follows clinical indication, compatible components, regulatory availability, evidence, anatomy and surgeon assessment—not a generic ‘best brand’ list.
06 — Technical documentation
Manufacturer Surgical Techniques and Implant References
Links below open official manufacturer or recognised clinical resources. Operative manuals are intended for trained healthcare professionals and are supplementary—not self-treatment guidance. Direct files are not mirrored on this site.
Visual reference library
Search genuine identified product visuals
20 visuals
HIP
Accolade II surgical-technique library (ACCII-SP-1) ↗
Manufacturer technique library · HCP
Stryker
EnglishAccolade II product page and surgical protocol ↗
Manufacturer resource · HCP
Stryker
EnglishTrident II acetabular system ↗
Manufacturer resource · HCP
Stryker
EnglishTrident II Tritanium surgical protocol ↗
Official PDF · HCP
Stryker
ItalianAvenir Complete surgical technique ↗
Official PDF · HCP
Zimmer Biomet
EnglishAvenir Complete Hip System ↗
Manufacturer resource · HCP
Zimmer Biomet
EnglishTaperloc Complete surgical technique ↗
Official PDF · HCP
Zimmer Biomet
EnglishTaperloc Complete Hip System ↗
Manufacturer resource · HCP
Zimmer Biomet
EnglishPOLARSTEM Hip Reconstruction System ↗
Manufacturer resource · HCP
Smith+Nephew
EnglishBIOLOX ceramic portfolio ↗
Manufacturer resource · HCP
CeramTec
EnglishOXINIUM material technology ↗
Manufacturer resource · HCP
Smith+Nephew
EnglishReCerf product brochure ↗
Official PDF · HCP
MatOrtho
EnglishReCerf patient guide to hip resurfacing ↗
Official PDF · Patient
MatOrtho
EnglishKNEE
HAND
FRACTURE FIXATION
Titanium Wrist Plating System ↗
Manufacturer resource · HCP
Arthrex
EnglishTitanium Volar Distal Radius Plating surgical technique ↗
Manufacturer technique · HCP
Arthrex
EnglishVariAx 2 Compression operative technique ↗
Official PDF · HCP
Stryker
EnglishGEMINUS Distal Radius System ↗
Manufacturer resource · HCP
Skeletal Dynamics
EnglishAO Surgery Reference — fracture fixation principles ↗
Clinical reference · HCP
AO Foundation
EnglishClinical context
Named systems illustrate verified implant categories and documentation sources. Their inclusion does not imply that every system is used by Dr. Fernández-Fernández; individual selection depends on indication, anatomy, evidence, compatibility and local availability.
Related DF Trauma areas