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Dr. Tom Aleto - Partial Knee Replacement. Why have a Total?

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Columbia, MO
Dr. Tom Aleto - Partial Knee Replacement. Why have a Total?

📍Fellowship Trained | Specializing in Partial Knee Replacements. Board Certified with extensive partial knee experience, since 2006.

Instructional Course Educator for the Oxford Partial Knee. Training surgeons across the country.

07/14/2025

In the past, surgeons used to discourage patients from returning to sport or high demand activity. This was because of the risk of implant loosening or wear. With improvements in technology these risks have been minimized, particularly for partial knee replacement given that only one compartment is replaced and all ligaments are preserved!

07/12/2025

Numerous previous studies have demonstrated that the likelihood of returning to sport is much higher for patients that have partial knee replacement compared to total knee replacement.

- Of those that do return, outcome and pain scores are better for partial knee replacement patients.

07/10/2025

In addition to the near equal survivorship compared to total knees, partial knee replacement have better functional outcomes!

• A multi-center study found that Oxford PKR patients were 1.8 times more likely to report that their knee felt normal and 2.7 times more satisfied with their ability to perform activities of daily living compared to TKA patients.

07/08/2025

Long-term Results Oxford Partial Knee Replacement

Kaplan Meier Survivorship
• 94.0% at minimum 15 year postoperative
• 91.0% at minimum 20 year postoperative

This data demonstrates that for most patients, partial knee replacement is the definitive procedure without the need for a total knee replacement!

07/07/2025

Partial knee replacement ….IS NOT A TEMPORARY PROCEDURE!

For patients with knee arthritis limited to one compartment… partial knee replacement is a long term solution! Just like total knee replacement.

The thought that partial knee replacement is “a bridge” procedure until you need a total knee replacement is outdated thinking. Numerous studies have demonstrated the excellent long term results after partial knee replacement.

07/06/2025

Sorry for my absence. We recently transitioned to a new Electronic Charting System. For those that have been to our office recently you know what I am talking about!

Please feel free to message with any questions. If you know of any friends or family members that are having knee or hip pain, I am happy to help.

This page‘s primary purpose is to build awareness for partial knee replacement, but I am open to any joint replacement questions.

06/23/2025

This pictures demonstrates the difference between a fixed and mobile bearing partial knee replacement.

You can see with the fixed bearing device, the plastic insert is locked in the tibial tray.

With a mobile bearing implant, the plastic bearing moves independently of the tibial tray. This reduces the stress on the plastic insert, which as a result reduces the risk of wear.

06/22/2025

The Oxford Partial Knee replacement has a unique design and is unlike any other partial knee devices.
- It has a mobile bearing that was designed to replace the function of the meniscus in the knee.
- Because the meniscal bearing is mobile, there is essentially no wear of the plastic bearing. This eliminates one of the common reasons for failure, which is wear of this bearing.

06/20/2025

The Oxford Partial Knee replacement was developed in Oxford England in 1976.
- It is the most used partial knee implant worldwide.
- It is the most studied device in all of joint replacement.
- This implant has revolutionized the indications and understanding of partial knee replacement for surgeons around the world.

06/18/2025

You can see in this patient after total knee replacement, both compartments of the knee are replaced.

One of advantage of total knee replacement in this setting is that we can correct the alignment of the knee.

Knees that are ACL deficient, like the one seen here, tend to have more fixed deformities that are not correctable. So it is important to restore the knee alignment to a more neutral position for optimal outcome.

This is not necessary in partial knee replacement, because the ligaments are normal and the knee deformity corrects when you replace the affected compartment.

06/16/2025

Not all likes are candidates for partial knee replacement.

With this knee, there is bone on bone medial arthritis. You can also see that there is a significant subluxation of the knee joint. The femur, or top bone, is shifted out of place relative to the tibia, or bottom bone.

This is an indication that ligaments in the are deficient, specifically the ACL.

When this is the case, total knee replacement is the only option. In this setting total knee replacement has excellent outcomes.

06/15/2025

Patellofemoral or "knee cap" replacement resurfaces the underside of the kneecap with plastic and the groove that the knee cap tracks on the femur with metal.

Again, this preserves the other normal 2/3's of the knee.

This is the least common pattern of OA, accounting for less than 5% of patients.

In my experience, patients have total knee replacement for this type of OA are typically not satisfied with their knees, because the no longer feel normal.

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1 S. Keene Street
Columbia, MO
65201

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