First High Flexion Unicompartmental Knee

The first high flexion design unicompartmental knee is designed for patients who require partial knee replacement and who are capable of attaining high degrees of flexion.

Initially designed to address patient needs in Asia where kneeling and squatting are more prevalent for religious and lifestyle purposes, the high flexion design has found great acceptance worldwide, according to Zimmer Holdings, Inc. (Warsaw, IN, USA), which developed the new unicompartmental knee. The device can safely accommodate flexion up to 155o. A key design goal of the system was to be MIS (minimally invasive surgery)-friendly. The company's MIS instruments and technique, combined with an implant that had a history of long-term survivorship, provided another treatment option for surgeons in addressing patient requirements.

Since its initial release, the company's first unicompartmental knee system, introduced in 1987, has demonstrated long-term survivorship in several long-term clinical studies. One study at Rush-Presbyterian Medical Center (Chicago, IL, USA) found that 95.7% of patients still had well-functioning knee replacements after 10-14 years.

"The high flexion design is a patient lifestyle attribute that has proven tremendously popular in our total knee systems,” noted Ray Elliott, chairman, president, and CEO of Zimmer.




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