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    AI Overview
    CoCrMo (Cobalt-Chromium-Molybdenum) alloy femoral heads are widely used in hip replacements due to their high wear resistance, superior biocompatibility, and high hardness, typically articulating with polyethylene (MoP) or metal (MoM) liners. These heads allow for various diameters (22-40mm+) and neck lengths to optimize stability and range of motion. 
    Key Aspects of CoCrMo Femoral Heads: 
    • Composition & Properties: Composed of roughly 58.9–69.5% Co, 27.0–30% Cr, and 5.0–7.0% Mo, offering high tensile strength and resistance to corrosive environments.
    • Performance: They are highly successful in clinical applications, designed for longevity and reduced friction when paired with ultra-high molecular weight polyethylene (UHMWPE).
    • Wear & Corrosion: While durable, they are susceptible to tribocorrosion and the release of metal ions, particularly if fretting occurs at the modular head-neck junction.
    • Surface Precision: Advanced manufacturing techniques like 5-axis machining are necessary to achieve the high-precision, polished surface required for modern hip prostheses.
    • Alternatives: While popular, ceramic heads are often used for active patients due to lower potential for metal ion release. 
    Clinical Considerations: 
    • Metal-on-Polyethylene (MoP): Cobalt chrome heads paired with highly cross-linked polyethylene show excellent, long-term wear properties, often comparable to ceramic.
    • Metal-on-Metal (MoM): Larger CoCrMo heads, often used to improve stability, have been associated with higher rates of corrosion and adverse local tissue reactions in some cases.
    • Fixation: Often paired with titanium stems, but the mismatch in metal can lead to crevice corrosion at the junction. 
    Note: For detailed, high-resolution imagery of various orthopedic femoral components and their application, please consult the Just-Ortho CoCrMo Femoral Head Product Page for specific designs and sizes. 
    • Hip implant modular junction: The role of CoCrMo alloy ...
      Cobalt-chromium-molybdenum (CoCrMo) alloy is one of the most used metals in total hip replacement (THR) due to the alloy's superio...
      www.sciencedirect.com
    • Failure Following Revision Total Hip Arthroplasty After Cobalt- ...
      Oct 15, 2024 — Early Failure of a Novel Modular Dual Mobility Liner After Metal Release: Clinical Presentation and Detailed Retrieval Analysis. .
      www.sciencedirect.com
    • CoCrMo Metal-on-Metal Hip Replacements - PMC
      CoCrMo alloys are used in medical implants because they are resistant to wear and corrosion. CoCrMo alloys are composed of: * 58.9...
      pmc.ncbi.nlm.nih.gov
    • A possible solution to cobalt—chrome heads on titanium alloy stems
      Abstract. The low-wear characteristics of cobalt—chrome femoral heads matched with the excellent biocompatibility and low modulus ...
      www.sciencedirect.com
    • The CNC Journey of a Femoral Head: From 5-Axis Machining to Polishing
      Jul 28, 2025 — The femoral head is the spherical component of a hip implant. It's typically made from biocompatible alloys like: * **CoCrMo (coba...
      croommedical.com
    • OEM CoCrMo Femoral Head ( Femoral Head Diameter
      Product Features: ● Femoral Head Diameter: 22mm, 28mm, 32mm, 36mm. ● Femoral Head Lengths: -3.5mm, +0mm, +3.5mm, +7mm. ● An implan...
      www.just-ortho.com
    • Achieving high accuracy of Co-Cr-Mo femoral head for ...
      Introduction. Hip joint prosthesis is a medical device that has been used to replace a damaged or diseased hip joint of patients [
      www.sciencedirect.com
    • What is my hip replacement made of?
      Jun 10, 2020 — itself which is used to hold the ball the stem is inserted into the thigh bone. and again holds the ball. as part of the ball and ...
      6m
      YouTube·American Association of Hip and Knee Surgeons
    • Ceramic vs Metal Heads in Total Hip Replacement
      Mar 25, 2022 — years that they both work exceptionally well in patients. but let's look at the data. also. I think there are three main concerns ...
      3m
      YouTube·Andrew Yun, MD
    • Hip implant modular junction: The role of CoCrMo alloy ...
      Cobalt-chromium-molybdenum (CoCrMo) alloy is one of the most used metals in total hip replacement (THR) due to the alloy's superio...
      www.sciencedirect.com
    • Failure Following Revision Total Hip Arthroplasty After Cobalt- ...
      Oct 15, 2024 — Early Failure of a Novel Modular Dual Mobility Liner After Metal Release: Clinical Presentation and Detailed Retrieval Analysis. .
      www.sciencedirect.com
    • CoCrMo Metal-on-Metal Hip Replacements - PMC
      CoCrMo alloys are used in medical implants because they are resistant to wear and corrosion. CoCrMo alloys are composed of: * 58.9...
      pmc.ncbi.nlm.nih.gov
    Show all
    This is for informational purposes only. For medical advice or diagnosis, consult a professional. AI responses may include mistakes. Learn more
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    Hip implant modular junction: The role of CoCrMo alloy ...


    ScienceDirect.com
    https://www.sciencedirect.com › article › abs › pii
    ScienceDirect.com
    https://www.sciencedirect.com › article › abs › pii
    by J Manthe · 2022 · Cited by 31 — Cobalt-chromium-molybdenum (CoCrMo) alloy is one of the most used metals in total hip replacement (THR) due to the alloy's superior corrosion qualities and ...Read more

    CoCrMo Metal-on-Metal Hip Replacements - PMC - NIH


    PubMed Central (PMC) (.gov)
    https://pmc.ncbi.nlm.nih.gov › articles › PMC3530782
    PubMed Central (PMC) (.gov)
    https://pmc.ncbi.nlm.nih.gov › articles › PMC3530782
    by Y Liao · 2013 · Cited by 209 — Smith, Dowson and Goldsmith found that in the presence of pseudo synovial fluid the lubrication of metal hip replacements is sensitive to femoral head size.Read more

    OEM CoCrMo Femoral Head ( Femoral Head Diameter


    JUST MEDICAL
    https://www.just-ortho.com › ... › Femoral Head
    JUST MEDICAL
    https://www.just-ortho.com › ... › Femoral Head
    Discover high-quality CoCrMo femoral heads designed for durability and performance in joint replacement surgery. Enhance your surgical outcomes today!
    CoCrMo Alloy Femoral Head for Hip Replacement from www.just-ortho.com

    Femoral Head: The Manufacturing Process


    Croom Medical
    https://croommedical.com › Insights › Blog
    Croom Medical
    https://croommedical.com › Insights › Blog
    Jul 28, 2025 — The femoral head is typically made from biocompatible alloys like AISI 316L stainless steel or cobalt-chromium-molybdenum (CoCrMo).Read more
    CoCrMo Alloy Femoral Head for Hip Replacement from croommedical.com

    Hip implant modular junction: The role of CoCrMo alloy ... - PMC


    PubMed Central (PMC) (.gov)
    https://pmc.ncbi.nlm.nih.gov › articles › PMC10507884
    PubMed Central (PMC) (.gov)
    https://pmc.ncbi.nlm.nih.gov › articles › PMC10507884
    by J Manthe · 2022 · Cited by 31 — Cobalt-chromium-molybdenum (CoCrMo) alloy is one of the most used metals in total hip replacement (THR) due to the alloy's superior corrosion qualities and ...
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    Why is cobalt chrome molybdenum alloy used for hip implants?
    CoCrMo alloys are used for medical implants owing to their excellent wear and corrosion resistance.

    CoCrMo Metal-on-Metal Hip Replacements - PMC - NIH


    PubMed Central (PMC) (.gov)
    https://pmc.ncbi.nlm.nih.gov › articles › PMC3530782
    PubMed Central (PMC) (.gov)
    https://pmc.ncbi.nlm.nih.gov › articles › PMC3530782
    What can you never do again after hip surgery?
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    Web results

    Has Wrought Cobalt-Chromium-Molybdenum Alloy ...


    The Journal of Arthroplasty
    https://www.arthroplastyjournal.org › article › pdf
    The Journal of Arthroplasty
    https://www.arthroplastyjournal.org › article › pdf
    by SM McCarthy · 2023 · Cited by 2 — It was the objective of this study to determine if the character- istics of tribocorrosion damage in THA femoral heads made from wrought CoCrMo ...Read more

    Wear Analysis of Modular Hip Implants


    Eriten Research Group
    https://friction.engr.wisc.edu › home › projects › wear-...
    Eriten Research Group
    https://friction.engr.wisc.edu › home › projects › wear-...
    The femoral head is made up of cobalt chrome alloy. It is hammered on the trunnion located at proximal end of the neck. In collaboration with Dr Matthew Squire, ...Read more

    Summary of Safety and Effectiveness - Hip System Instruments


    U.S. Food and Drug Administration (.gov)
    https://www.accessdata.fda.gov › cdrh_docs › pdf12
    U.S. Food and Drug Administration (.gov)
    https://www.accessdata.fda.gov › cdrh_docs › pdf12
    PDF
    Femoral Heads. The components are indicated for use in individuals undergoing primary and revision surgery where other treatments or devices have failed in ...Read more

    High Carbon CoCrMo Alloy Femoral Head Implant for Hip ...


    surgimplant.com
    https://www.surgimplant.com › Joint Implants
    surgimplant.com
    https://www.surgimplant.com › Joint Implants
    Made from high-quality high carbon Cobalt-Chromium-Molybdenum (CoCrMo) alloy, this femoral head offers exceptional strength, durability, and biocompatibility, ...Read more

    Achieving high accuracy of Co-Cr-Mo femoral head for ...


    ScienceDirect.com
    https://www.sciencedirect.com › article › abs › pii
    ScienceDirect.com
    https://www.sciencedirect.com › article › abs › pii
    by L Heng · 2024 · Cited by 5 — A high accuracy of Co-Cr-Mo femoral head was achieved by reducing its surface roughness and roundness, which reduced the wear rate of the acetabular cup by more ...Read more
    Missing: CoCrMo ‎| Show results with: CoCrMo
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