Stiehl Jb. Is Ps Needed In Tka

Is Posterior Stabilized Needed in TKA James B. Stiehl, MD Medical College of Wisconsin Milwaukee, Wisconsin

Posterior Stabilized Advantages and Problems ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

KINEMATICS OF TOTAL KNEE ARTHROPLASTY ,[object Object],[object Object],[object Object],[object Object],[object Object]

INVIVO FLUROROSCOPY Lat condyle, normal Lateral Condyle PCR-TKA

Fluoroscopic Kinematic Analysis of TKA: Conclusions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

What About Wear in Mobile Bearings? ,[object Object],[object Object],[object Object],[object Object],[object Object]

LCS Failure at 6 years Pitting, small med,lat Deep Knee Bend Gait +6mm -7mm +14 °

Forward Body Lean on Stairs ,[object Object],[object Object],[object Object],[object Object],[object Object]

Extensor Mechanism Power Curve

Anterior Femorotibial Translation in TKA ,[object Object],[object Object],[object Object]

Mechanics of Joint Line Elevation: PCR vs PS ,[object Object],[object Object],[object Object],[object Object]

Contact Stress and High Flexion ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Active vs Passive Range of Motion in TKA ,[object Object],[object Object],[object Object],[object Object]

Balanced Flexion Gap ,[object Object],[object Object],[object Object],[object Object]

PS for Deformity 7  Varus 16  Varus 16  Varus 0  Varus

Case: 52 YO Female Severe Distal Femur Fracture with 10 ° Varus Deformity; Flexion

Final Result: Free Navigation Mechanical Axis: 0 ° !!!

Level 4 Outcome Data ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Swedish Arthroplasty Register ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Osteolysis in PS TKA ,[object Object],[object Object],[object Object],[object Object],[object Object]

Tibial Post Wear in PS TKA ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Recommendations for TKA ,[object Object],[object Object],[object Object],[object Object],[object Object]

LCS Rotating Platform vs Posterior Stabilized 3D Analysis ,[object Object],[object Object],[object Object],[object Object]

LCS ROTATING PLATFORM ,[object Object],[object Object],Gait Deep Knee Bend

LCSPS ROTATE PLATFORM ,[object Object],[object Object],Gait Deep Knee Bend

LCS RESULTS: CONDYLAR LIFTOFF ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Coronal Plane Liftoff ,[object Object],[object Object],[object Object]

Disadvantages: PS High Flex ,[object Object],[object Object],[object Object],[object Object]

Posterior Stabilized Disadvantages ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Stiehl Jb. Is Ps Needed In Tka

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