MIS Patellofemoral Arthroplasty



The prevalence of isolated patellofemoral arthritis is high, occurring in as many as 11% of men and 24% of women older than the age of 55 years with symptomatic osteoarthritis of the knee in one study.1 Symptomatic patellofemoral chondromalacia occurs with even greater frequency and is a very common reason for presentation for orthopedic evaluation, particularly in women between the ages of 30 and 50 years. This gender predilection is undoubtedly related to the often subtle patellar malalignment and dysplasia that is common in women. The patellofemoral cartilage is also at risk for direct traumatic injury, considering its vulnerable location in the body.

Patellofemoral arthroplasty is an attractive option for the treatment of debilitating isolated patellofemoral arthritis and diffuse grade IV patellofemoral chondromalacia. The traditional surgical alternatives, long recognized for their shortcomings, are losing ground to this increasingly more popular treatment method. The pain relief resulting from patellofemoral arthroplasty is superior to other patellofemoral-specific treatment strategies, like patellectomy and tibial tubercle-unloading procedures. Additionally, enthusiasm for patellofemoral arthroplasty continues to increase as newer designs with improved features emerge, surgical indications are refined, and techniques and instrumentation improve. Furthermore, revision to total knee arthroplasty is not compromised after patellofemoral arthroplasty, making it a reasonable intermediate procedure in young and middle-aged patients with isolated patellofemoral arthritis.2


Total Knee Arthroplasty Minimally Invasive Surgery Patellar Instability Trochlear Dysplasia Patellar Tracking 


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© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  1. 1.Knee Replacement Surgery, Orthopaedic Research, Booth Bartolozzi Balderston OrthopaedicsPennsylvania HospitalPhiladelphiaUSA

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