A large portion of the global population suffers from excessive knee pain and other degenerative issues like OA(osteoarthritis). As such conditions progress, a significant population sustains symptoms severe enough that medical management, exercise, and injections are insufficient to mitigate.
Regarding the treatments of the medical issue, physicians prescribe surgical interventions at this stage of the condition, and there are two types of surgical methods: total knee replacement and partial knee replacement surgery.
In this article, we will mainly be making a comparison between full vs partial knee replacement surgeries to recuperate the full effects of the surgery, how long it takes to recover fully, the advantages of the method, and the time required for the healing process, and the benefits of the procedure. Such discrepancies mean that individuals can select the correct Knee replacement surgery and work together with their practitioners effectively.
Full Knee Replacement
During a total knee replacement surgery, the natural knee joint is replaced with an artificial joint. This is a prevalent type of surgery to help with knee problems. Surgeons replace both the healthy patina and the damaged femoral and tibial surfaces of the joint with artificial joints called prostheses. These prostheses, made of metal and plastic, are customarily designed to mimic the natural fluidity of a knee joint.
Severely affected compartments, such as medial, lateral, or patellofemoral, usually qualify the patient for total knee replacement. This procedure can lead to a considerable enhancement of patients’ mobility. Also, it can eliminate or at least reduce pain and stiffness that patients suffer while performing routine duties like walking, climbing stairs, or standing.
Patients with other degenerative joint diseases, for example, rheumatoid arthritis, after-injury arthritis, and situations that result in cartilage destruction in the knee joint, usually include TKR alongside osteoarthritis. Total knee Replacement is beneficial to reduce pain and restore function and overall quality of life.
Partial Knee Replacement
Partial knee replacement surgery, better called PKR, is a surgical operation that is in contrast to total knee replacement surgery. In PKR, the surgeon selectively resurfaces the faulty area within the knee joint and leaves the healthy part alone. The knee has three compartments: the medial, lateral, and patellofemoral, and PKR typically targets the treatment of only one of these regions.
Indications of partial knee replacement or PKR are for those patients who have particular damage at a specific area of the knee. In some situations, a person might have healthy cartilage in one area of the knee, so they don’t need to replace the entire joint.
However, since PKR has a more localized approach and is a technically less invasive surgery, it is recommended in younger, more active patients with milder arthritis. Also, the patients should have pretty stable knees without inflammation or deformation.
Key Differences: Full Vs Partial Knee Replacement
The main goals of total and partial knee replacement surgeries are to reduce pain and increase function. However, there are some of the following differences between the two types of surgeries;
- Surgical Invasiveness
Total knee replacement is a more extensive procedure that involves a longer incision and more handling of the knee joint.
Partial knee replacement is generally less invasive because the cut made in the skin is minor. Also, the orthopedic surgeon removes less bone and tissue. This commonly leads to reduced surgical pain and a shorter time to recover or get back to normal activities and function.
- Extent of Surgery
For TKR, the entire joint of the knee, including the femur, tibia, and patella, is replaced. This procedure involves removing all the cartilage and affected bone from the entire area diagnosed with the disease.
In PKR, the surgeon only swaps the part of the knee that is worn out while leaving most of the patient’s bone, cartilage, and ligaments intact.
- Postoperative Function
Total knee replacement is associated with some form of limitation in knee function and even flexibility in some patients. TKR is effective in relieving pain and improving mobility. However, it may not be as satisfying as preserving a natural joint.
Partial knee replacement generally yields better function of the knee joint because it preserves further aspects of the patient’s anatomy to a certain degree. A high number of patients find a significant improvement in their knee function, particularly mobility and flexibility.
- Recovery and Rehabilitation
It takes up to 3-5 months to fully recover after having had a knee replacement, especially a total knee replacement. Due to this, there will be discomfort and swelling, and, at times, the patients will need physiotherapy to achieve strength, flexibility, and full extension of the knee. Recovery of sensibility in the area may last up to one year because it depends on age, general health conditions and a certain level of adherence to rehabilitation programs.
It also takes a shorter time to heal from partial knee replacement surgery. Patients undergoing the procedure experience less pain; therefore, they need minimal physical therapy to recover quickly in most cases and can go back to their normal activities within weeks.
- Longevity of the Implants
TKAs have high durability, and the success rate of knee replacement surgery is relatively high as well. Research indicates that the overall survival rates of total knee implants fall between fifteen and twenty years or beyond, based on different luxuries of the patient.
Partial knee replacements are generally shorter because they are different in terms of the type of mechanical stress placed on them as compared to total knee implants. Still, they have an operational time of between 10 and 15 years for many patients.
The Benefits Of Total Knee Replacement
- Addresses All Sources of Knee Pain:Â
TKR is used to replace the entire knee joint. It is most appropriate when arthritis or damage affects all the compartments of the knee joint.
- Long-Term Durability:Â
TKR is a successful procedure, and it has long-lasting outcomes. Most of the patients see a significant change; the effects may even persist for over a decade.
- Suitable for Severe Arthritis:Â
Patients with severe joint degeneration or deformity can benefit from TKR because TKR generally offers more comprehensive relief of pain and better improvement in knee function.
Benefits Of Partial Knee Replacement
- Quicker Recovery:
Thus, the recovery process is faster and has less pain, and the patient requires a shorter hospitalization if he undergoes PKR. Most patients can conduct their normal activities after several weeks.
- More Natural Knee Function:
PKR anti-inflammatory medication also helps patients retain normal bone, cartilage, and ligament integrity. Thus, they have better movement and knee function.
- Lower Risk of Complications:
PKR has fewer risks likely to compromise surgery results than TKR in terms of infection and blood clots. Patients also experience less intraoperative blood loss, therefore rarely requiring blood transfusions.
Conclusion
TKR and PKR are equally effective in providing patients with knee pain and arthritis with many benefits. The implementation of either of the two procedures depends on the severity of the damage to the knee. Moreover, it depends on the patient’s age, activity level, and health. Historically, total knee replacement has been a successful surgery for arthritis. However, there’s a less extensive option, which is partial knee resurfacing. It aims to avoid some of the problems of total knee replacement while still providing good long-term results. It also offers a faster recovery, less discomfort, and more natural knee motion.
So, it’s essential to make decisions with an orthopaedic surgeon who can diagnose the patient and choose the best treatment. When patients comprehend the distinctions between full vs partial knee replacement, they can make necessary decisions. It will lead to the best results regarding the knee condition.