Knee replacement surgery does not begin and end on the day of the procedure; the preparation carried out beforehand directly influences the success of the operation and the quality of recovery. Before the intervention, the patient's general health, lifestyle habits, functional capacity, and the level of knee function must be thoroughly assessed. Each preparatory measure, when properly conducted, can help reduce the intensity of postoperative pain, restore mobility more quickly, and lower the risk of complications. It is also essential to clarify the patient's expectations and ensure they have a clear understanding of both the goals and the limitations of the procedure, so that the process can unfold under better psychological conditions. Patients who are well prepared and informed find it easier to engage with rehabilitation and take an active part in their treatment. This is why the preoperative period should be regarded as an integral component of the overall surgical care.
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Another important consideration is organising daily life and the home environment with the postoperative period in mind. Adapting the home, making movement areas safe, and anticipating situations that may require assistance all contribute to a more comfortable recovery. It is advisable to obtain walking aids in advance such as a walking frame or a cane and to learn how to use them correctly. Improving diet, sleep quality, and stress management are also integral parts of preparation before a knee replacement. When all these elements are brought together, it becomes clear that preoperative preparation is not solely physical: it also encompasses a mental dimension and practical organisation. A comprehensive approach enhances the safety of the procedure and supports a smoother recovery.
Why Are Weight and Muscle Strength Important Before the Procedure?
Weight management before knee replacement surgery is one of the key factors that influence both the technical success of the operation and the long-term outcomes. Excess weight increases the already considerable load on the knee joint and can expose the implanted prosthesis to greater mechanical stress. This can reduce the lifespan of the prosthesis and intensify the pain experienced after the operation. In addition, excess weight can prolong the operative time, increase certain risks associated with anaesthesia, and delay wound healing. For all these reasons, managing weight before the procedure is not simply a matter of general health — it is directly linked to the performance of the prosthesis and the quality of recovery. A gradual and sustainable approach to weight loss can markedly improve the functional benefit gained from the operation.
Muscle strength, in turn, is a key determinant of functional recovery. Strong muscles around the knee help the joint function more stably after the prosthesis has been fitted and accelerate the rehabilitation process. In particular, the strength of the thigh and calf muscles makes it easier to stand up, walk, and climb stairs in the weeks following the procedure. Conversely, insufficient muscle strength can prolong the need for rehabilitation sessions and delay the return to satisfactory mobility. This is why it is often recommended to follow a personalised exercise programme before the operation in order to improve muscular conditioning. The better prepared the muscles are, the more effectively the body adapts to the prosthesis.
Should Medications Be Stopped Before the Operation?
Medications taken before the procedure are a critical matter that must not be overlooked. Certain treatments notably anticoagulants, some painkillers, and several herbal supplements can increase the risk of bleeding during and after the operation. Unmonitored use can complicate the management of the surgical field and lead to postoperative complications. It is therefore essential that the patient provides their doctor with a complete list of all medications they take on a regular basis. This list should include not only prescribed treatments but also vitamins, dietary supplements, and herbal products. As each substance can have a different impact on the procedure, the decision to stop, continue, or adjust a treatment must be made by a healthcare professional.
However, abruptly stopping certain medications can give rise to other health problems, which requires careful planning. Treatments for hypertension, diabetes, or heart conditions, for example, often need specific adjustments before surgery. Dosages may be modified, timing of doses adjusted, or in some cases, an alternative treatment may be considered. The aim is to keep chronic conditions under control while reducing surgical risks. It is strongly advised against modifying a treatment or discontinuing a medication without medical guidance, as this can have serious consequences. Proper medication management is a key step in ensuring a safer and more controlled knee replacement surgery.
What Tests Should Be Carried Out Before a Knee Replacement?
The tests performed before knee replacement surgery serve to verify the patient's fitness for the procedure and to identify any potential risks in advance. Blood tests help to assess the risk of infection, check coagulation parameters, and provide an overall picture of the patient's health. In addition, tests to evaluate heart and lung function play a major role in assessing anaesthetic risk. In older patients or those with a medical history, these tests help to prevent complications during the procedure. Imaging examinations, for their part, provide a precise view of the condition of the knee and help to plan the surgical strategy on a personalised basis. Together, these assessments enable a course of care that is better tailored to the individual patient.
The preoperative assessment should not be seen as a mere administrative formality but as an essential safety phase. Each test helps the surgeon and the medical team to anticipate possible scenarios and to take preventive measures. The results also guide the planning of rehabilitation and help to set more realistic postoperative goals. Incomplete or neglected examinations can lead to unforeseen complications and extend the overall duration of the care pathway. This is why preoperative tests serve as a genuine guide for both the patient and the care team. A thorough and rigorous assessment is one of the foundations of a successful surgery and a more stable recovery.