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Patella baja in total knee arthroplasty can result in impingement, pain, and decreased range of motion. Etiology can range from previous knee surgeries such as anterior cruciate ligament reconstruction, retrograde femoral nail, infrapatellar fat pad resection, and previous total knee arthroplasty. Diagnosis can be confirmed by one of a number of measurements of patellar height including Insall-Salvati and Blackburne-Peel ratios. It is important to differentiate between true patella baja and pseudopatella baja by patellar height ratio. Treatment includes correct identification of the underlying etiology and appropriate management. Surgical management strategies include tibial tubercle osteotomy, distal femoral augment and revision, proximalization of the patellar component, modification of the anterior tibial component, and/or Z-plasty of the patellar tendon. We review the outcomes for each of these procedures.
This article was published in the following journal.
Name: The Journal of the American Academy of Orthopaedic Surgeons
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Replacement of the knee joint.
The flat, triangular bone situated at the anterior part of the KNEE.
A synovial hinge connection formed between the bones of the FEMUR; TIBIA; and PATELLA.
Partial or total replacement of a joint.
Partial or total replacement of one or more FINGERS, or a FINGER JOINT.
A joint is where two or more bones come together, like the knee, hip, elbow, or shoulder. Joints can be damaged by many types of injuries or diseases, including Arthritis - inflammation of a joint causes pain, stiffness, and swelling with ...
Arthroplasty is a surgical procedure to restore the integrity and function of a joint. A joint can be restored by resurfacing the bones. An artificial joint (called a prosthesis) may also be used. Various types of arthritis may affect the joints. Osteo...
Arthroplasty Joint Disorders Orthopedics Spinal Cord Disorders Orthopedics is the science or practice of correcting deformities caused by disease or damage to the bones and joints of the skeleton. This specialized branch of surgery may ...