title: Joint line restoration in a contemporary revision knee system.
abstract: We investigated a new revision total knee arthroplasty device and associated instrumentation to determine if it could reduce intraoperative complexity and restore the joint line through the arc of motion. In a prospective multicenter study, a total of 95 consecutive patients undergoing a revision knee arthroplasty were evaluated. Medical history, functional health scores, and intraoperative data were collected. The joint line was restored to 28 mm ± 5 mm in full extension and 90-degree flexion. Significant improvements were noted in all functional and general health scores. The anatomic boss position may allow for a reduction in instrumentation, as the need for femoral offset adapters was limited. Joint line restoration with proper posterior condylar offset correlated with positive functional outcomes.
authors: Department of Orthopaedics, Baylor Scott and White Healthcare, Temple, Texas.
authors: Kirby
authors: K
authors: Hitt
authors: Stryker Orthopaedics, Mahwah, New Jersey.
authors: Manoshi
authors: M
authors: Bhowmik-Stoker
authors: Stryker Orthopaedics, Mahwah, New Jersey.
authors: Michael
authors: M
authors: Howard
authors: The Orthopaedic Center, Tulsa, Oklahoma.
authors: Yogesh
authors: Y
authors: Mittal
authors: Heekin Orthopaedic Institute for Research, Inc., Jacksonville, Florida.
authors: R David
authors: RD
authors: Heekin
authors: The CORE Institute, Sun City West, Arizona.
authors: David
authors: D
authors: Jacofsky
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee / Q000295:instrumentation*; D005260:Female; D006801:Humans; D007719:Knee Joint / Q000601:surgery*; D007720:Knee Prosthesis; D008297:Male; D008875:Middle Aged; D020370:Osteoarthritis, Knee / Q000601:surgery*; D011446:Prospective Studies; D016059:Range of Motion, Articular; D012086:Reoperation