title: Stem length in revision total knee arthroplasty.
abstract: Stems are intramedullary extensions of either the femoral or tibial component of a total knee arthroplasty (TKA) designed to increase the mechanical stability to decrease the risk of aseptic loosening. Biomechanical studies have shown that TKA stems increase the mechanical stability by transferring load over a larger area and thereby reduce strain at the bone-component interface [1-4]. The length of a revision TKA stem is determined by the patient's anatomy and the intended fixation, namely fully cemented or press-fit cortical contact. The advantages and disadvantages of various stem lengths must be weighed against the needs of the patient to achieve an optimal outcome.
authors.affiliation: The Fondren Orthopaedic Group, 7401 Main St., Houston, TX, 77030, USA. AnayRPatel@gmail.com.
authors.forename: Anay Rajendra
authors.initials: AR
authors.lastname: Patel
authors.affiliation: The Hospital for Special Surgery, 535 E 70th St., New York, NY, 10021, USA. BarlowB@HSS.edu.
authors.forename: Brian
authors.initials: B
authors.lastname: Barlow
authors.affiliation: The Hospital for Special Surgery, 535 E 70th St, 6th Floor, New York, NY, 10021, USA. RanawatAmar@HSS.edu.
authors.forename: Amar S
authors.initials: AS
authors.lastname: Ranawat
keywords: Cemented; Fixation; Length; Revision; Stem; Uncemented