The decision to undergo bilateral implantation of sled prostheses in a single operation is a significant step that requires both careful consideration and comprehensive information. This article will detail the advantages and disadvantages of a simultaneous bilateral operation to help you make an informed decision.

What is a sled prosthesis?

A sled prosthesis, also known as a unicompartmental knee arthroplasty, replaces only the part of the knee joint affected by osteoarthritis. Unlike total knee replacement, the healthy joint area remains intact, which can lead to better mobility and a more natural knee feeling. In addition, the surgical intervention is less invasive, as all ligament structures and healthy joint parts are preserved, which shortens the recovery time.

Benefits of simultaneous bilateral surgery

1. Single anesthesia and hospital stay By performing surgery on both knees simultaneously, only one anesthesia is required, and the hospital stay can be shortened. This reduces the risk of complications associated with multiple anesthetics.
2. Shorter overall recovery time Since both knees are treated in a single operation, the overall rehabilitation time is shorter compared to two separate interventions. Patients can return to their normal daily routine more quickly.
3. Simultaneous correction of malalignments In cases of existing malalignments such as knock knees or bowlegs, simultaneous surgery on both knees can help reduce the strain on other joints and the spine by symmetrically correcting the leg axes.
4. Cost efficiency A single hospital stay and rehabilitation often result in lower overall costs for patients and healthcare systems.

Disadvantages and risks of simultaneous bilateral surgery

1. Increased surgical risk Simultaneous surgery on both knees can be associated with a higher risk of complications such as increased blood loss. However, modern techniques have significantly reduced this risk.
2. More intensive rehabilitation Simultaneous recovery of both knees can be more strenuous and may require more support during the early rehabilitation phase.
3. Limited mobility in the initial phase Since both knees were operated on simultaneously, mobility may be significantly limited immediately after surgery, making everyday life temporarily more difficult.

For whom is simultaneous bilateral sled prosthesis suitable?

This type of surgery is particularly suitable for patients who:

• Suffer from bilateral knee osteoarthritis.
• Are in good general health and have no serious comorbidities.
• Desire a quick return to their active lifestyle.

However, it is essential to conduct an individual risk-benefit analysis with the treating orthopedic surgeon to make the best decision.

Rehabilitation process and follow-up care

After the operation, rehabilitation begins immediately, which includes the following measures:

• Physiotherapy to restore mobility
• Pain management
• Daily life adjustments to reduce the strain on the knees

The success of the surgery depends heavily on the patient's active participation in rehabilitation.

Challenges and benefits of rehabilitation after bilateral partial knee replacement surgery

Rehabilitation after bilateral sled prosthesis surgery places special demands on patients. Since both knees are affected simultaneously, significant mobility restrictions can occur in the first weeks after surgery. Muscle weakness is present on both sides, requiring more intensive physiotherapeutic care. In addition, home adjustments, such as the use of walking aids or grab bars in the bathroom, are essential for patient safety. Nevertheless, this type of surgery also offers advantages: both knees regenerate in parallel, allowing for a more natural adaptation of movement. Patients also undergo a single rehabilitation phase, rather than having to manage two separate rehabilitation periods. Many patients report a faster return to normal activities after intensive but well-structured rehabilitation.

Limited mobility in the initial phase Since both knees are operated on simultaneously, mobility may be significantly limited immediately after surgery, making everyday life temporarily more difficult. This means that patients often rely on walking aids for longer than after a unilateral operation.

Conclusion: Considering bilateral sled prosthesis is worthwhile!

The simultaneous bilateral implantation of sled prostheses offers numerous benefits, including a shortened overall recovery time and the avoidance of double burdens through two separate operations. Nevertheless, the potential risks and individual health factors should be carefully weighed. Simultaneous care using sled prosthesis is not suitable for everyone. An in-depth consultation with an experienced knee specialist is essential to determine the optimal treatment strategy for you.