Quick Answer
Old plates or screws do not always need to be removed during knee replacement. The surgeon may leave them in place if they do not obstruct access, interfere with implant placement, or raise concerns about the surrounding bone or tissue; if removal is needed, it may be done during the replacement or beforehand.
- The presence of old hardware alone does not determine whether it must be removed.
- Surgeons assess the hardware’s location and condition, the surrounding bone, and the planned implant position.
- Planning commonly draws on your medical and operative history, an examination, and imaging such as X-rays.
- Hardware may remain if it does not obstruct the operation, conflict with implant placement, or cause a separate problem.
- Removal may be considered if hardware blocks the surgical route, overlaps with implant placement, is loose, or is otherwise causing concern.
- If removal is needed, it may be performed during knee replacement or as a separate earlier operation.
- Previous operative notes and imaging records can help the surgical team plan your individual procedure.
Will Old Plates or Screws Need to Be Removed During Knee Replacement?
Old plates or screws do not always need to be removed during knee replacement. Your surgeon may leave hardware in place if it does not obstruct the operation, interfere with the knee implant, or raise a concern about the surrounding bone or tissue. If it does affect the surgical plan, removal may happen during knee replacement or in a separate earlier procedure. The right choice depends on your anatomy, the hardware’s location and condition, and the details of the planned operation.
Hardware is often placed to hold a broken bone while it heals, or it may remain after an earlier knee or leg operation. Years later, knee replacement may be considered for a different reason, such as significant joint damage. The old hardware can matter because it may sit near the area where the surgeon needs access or where parts of the new implant will be positioned. Its presence alone, however, does not determine whether it must come out.
Your surgical team will build a plan from your medical and operative history, examination, and imaging. If you are arranging care across borders, gather previous operation notes and imaging reports where possible, and ask how the team will coordinate records and follow-up. This article explains the factors that commonly shape decisions about old hardware and knee replacement, so you can discuss your own situation clearly with an orthopedic surgeon. It cannot determine what is appropriate for your knee without an individual assessment.
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Why previous plates and screws matter in knee replacement
Plates, screws, and other fixation devices hold bone in position after an injury or operation. If you later need knee replacement, the hardware may be close to the joint or in the path of the planned surgical approach. The surgeon needs to know where it is before deciding how to reach the knee and position the replacement components.
Location and type make a difference. A small screw away from the joint may have little effect on the operation, while a plate or several screws near the area where an implant must sit could limit the available space. The condition of the bone around the hardware also matters, particularly if a previous fracture changed the shape of the bone or left areas that need careful planning.
The surgical approach is the route the surgeon uses to reach the joint. Existing hardware may affect that route, but it does not automatically mean the plan must change or that the hardware must be removed. Sometimes the surgeon can work around it. In other cases, it may need attention because it blocks access or conflicts with the position of a new component.
Tell your team about every previous operation on the leg, even if it happened many years ago or the scar seems unrelated to the knee. Details about the original injury, the hardware used, and any later problems can help the team make sense of what appears on imaging.
How surgeons assess existing hardware before surgery
Planning usually begins with your history and a physical examination. Your surgeon may ask when the injury or earlier operation happened, whether the bone healed, and whether you have had pain, drainage, or other problems near the hardware. The examination helps assess the knee, nearby skin and scars, movement, and the condition of the leg more broadly.
X-rays commonly help show the position of the hardware, the shape of the bone, and the knee joint. Other imaging may be considered if the available pictures do not answer a planning question. The team decides what is useful based on your case, rather than ordering every possible scan. Bring previous images or reports if you have them, since they may help show how the bone and hardware have changed over time.
Your surgeon compares these findings with the type and position of the proposed knee implant. They consider whether existing screws or plates could obstruct the operation or component placement, and whether removal could affect the bone or make the procedure more complex. The team may also review earlier operative notes, which can describe how the hardware was placed and whether there were complications.
If you are traveling for care, ask in advance how to share records in a format the orthopedic team can review. Clarify whether images themselves are needed, not only written reports, and discuss how questions will be handled if additional assessment is needed after you return home. Clear records can support planning, but the surgeon still needs to assess you directly.
When plates or screws can stay in place
Hardware may sometimes remain when it does not obstruct access to the knee, interfere with the planned implant, or present a separate problem. Leaving it in place may avoid an additional step, but this is not a blanket rule. Your surgeon weighs the position of the hardware against the needs of the particular knee replacement.
For example, a screw located away from the joint and outside the planned implant position may not need to be disturbed. A plate on a nearby part of the bone might also be left alone if the surgeon can safely complete the replacement without working around it in a way that compromises the plan. These are illustrations, not a way to decide what will happen in your case.
The condition of the hardware and surrounding bone is part of the assessment. If the device appears stable and is not causing symptoms or interfering with the operation, the team may consider retaining it. If there is concern that it is loose, painful, or associated with another problem, that may change the discussion and prompt further evaluation.
Ask your surgeon which specific plate or screw matters and how its location relates to the new implant. It can also help to ask what the team would monitor if the hardware stays. The answer should reflect your imaging and examination, not just the fact that metal is present.
When hardware removal may be needed, and how timing is decided
Removal may be considered when hardware blocks the surgical route, overlaps with where an implant needs to sit, or is loose or otherwise causing a problem. The surgeon may also need to address it if the bone or tissue around it raises a concern. The reason matters because it helps determine whether removal is needed at all and how it could fit into the overall plan.
If removal is required, it may be done during the knee replacement or as a separate operation beforehand. A combined operation means the surgeon addresses the hardware and performs the replacement in one surgical episode. A staged plan separates the procedures, giving the team an opportunity to plan around the specific hardware and the patient’s circumstances. Neither approach is right for everyone.
Timing can depend on whether the bone has healed, whether there is concern about infection, how complex removal is expected to be, and your overall health. Removing hardware can require additional work and may affect bone or nearby tissue. The surgeon considers these issues alongside the practical question of whether removal and replacement can be safely carried out together.
Ask why a particular timing is being considered and what would change the plan. If the operation is planned in another country, discuss how the team will coordinate any staged procedure, records, and follow-up. The care team should explain the proposed sequence and how it fits with your individual assessment.
What trade-offs and questions should you discuss with your surgeon?
Removing hardware can add steps to an operation and may affect the bone or surrounding tissue. It can also influence the complexity of surgery and the recovery plan. Leaving hardware in place is not always suitable, though, if it blocks the operation or conflicts with implant placement. Your surgeon’s recommendation should explain how these competing considerations apply to you.
Ask which hardware is relevant, whether the bone from the earlier injury has healed, and what the imaging shows about the implant position. You can also ask whether removal is planned during the knee replacement or as a separate procedure, and what factors led to that timing. If the plan could change during surgery, ask what situations might lead the team to adjust it.
Recovery depends on the full procedure and your health, so it is difficult to predict from the presence of hardware alone. Ask how the planned approach may affect your mobility, wound care, rehabilitation, and follow-up. Before international travel, confirm how you will receive written instructions and who to contact if a concern arises after you return home. Make sure language support is available for discussing consent and the surgical plan.
Bring a list of previous operations, any available operative reports, and imaging records to your assessment. If you cannot obtain them, tell the team what you know about the injury and where the hardware was placed. These details help your orthopedic team have a more focused discussion about the safest and most practical plan for your knee.
Get Support for Joint Pain and Osteoarthritis
Answer a few short questions and HealthNode will help you connect with the right orthopedics, physical therapy, or joint care specialist.
Pain and Daily Life
This helps us understand how much the joint problem affects your movement and daily activities.
Previous Diagnosis or Treatment
Tell us what has already been checked or tried so we can route you to the right care option.
Contact information
Your information is only used to contact you and is never shared with third parties.
Your request has been received!
Thank you. If you have X-ray, MRI, blood test results, previous diagnosis notes, medication history, injection records, physical therapy notes, or previous surgery records, please keep them ready. A HealthNode consultant will guide you through the next step.
Frequently Asked Questions
Q: Do all plates and screws need removal before knee replacement?
A: No. Hardware can sometimes remain if it does not interfere with access, implant placement, or the condition of the bone and surrounding tissue. Your surgeon will assess its position and your individual situation. Ask which specific hardware affects the plan.
Q: Can hardware be removed during the same knee replacement operation?
A: Sometimes, if removal is needed and the surgeon considers it appropriate to combine the procedures. In other cases, removal may be planned separately beforehand. The decision depends on factors such as bone healing, infection concerns, surgical complexity, and your health.
Q: Could old hardware prevent me from having knee replacement?
A: The presence of old hardware does not automatically prevent knee replacement. It may make planning more complex if it obstructs the surgical approach or implant position. Your orthopedic surgeon can assess this using your history, examination, and imaging.
Q: Will removing hardware change my knee replacement recovery time?
A: It may affect the complexity of the procedure and your recovery plan, but the effect varies from person to person. Ask your surgeon how the proposed removal changes your expected mobility, wound care, and rehabilitation. Your team can give guidance based on the operation planned for you.
Q: What records or scans should I bring to my consultation?
A: Bring any previous operative reports, imaging reports, and X-rays or scan files related to the injury or hardware. A list of earlier procedures and any problems with the hardware can also help. If you are unsure what format the team accepts, ask before sharing records, especially when arranging care internationally.
The information provided is for educational purposes only and does not constitute medical advice. Always consult with a healthcare professional for medical guidance specific to your situation.
