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📌 Surgical Options for Knee Arthroplasty
1. PCL-Retaining TKA
- In PCL-retaining TKAs, the tibial and femoral metal components preserve the native PCL, providing stability.
- Suitable for patients with adequate bone stock, intact soft tissues, and an intact PCL.
2. Posterior-Stabilized TKA
- Posterior-stabilized TKAs replace the function of the PCL, preventing anterior translation of the femur on the tibia during flexion.
- These provide stability by limiting posterior motion in flexion.
- They offer increased range of motion without significant differences in complication rates compared to PCL-retaining TKAs.
3. Varus-Valgus Constrained TKA
- Varus-valgus constrained implants, with a tall tibial post and deep femoral box, provide stability in the coronal plane.
- They are used for severe valgus deformities, collateral ligament deficiency, bone defects, and residual instability.
4. Unicompartmental Arthroplasty
- This procedure resurfaces the articular surfaces of a single compartment, commonly the medial compartment, making it ideal for patients with unicompartmental OA.
References
- Semin Musculoskelet Radiol 2017;21:147–164
- Semin Musculoskelet Radiol 2019;23–e35
- Skeletal Radiol. 2019 Jul;48(7):1145-1148
- AJR 2013; 201:W828–W842
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#KneeArthroplasty, #PCLRetainingTKA, #PosteriorStabilizedTKA, #VarusValgusConstrainedTKA, #UnicompartmentalArthroplasty, #OrthopedicSurgery, #TotalKneeReplacement, #KneeSurgery, #JointReplacement, #Orthopedics
