title: The short stem: promises and pitfalls.
abstract: Conventional uncemented femoral implants provide dependable long-term fixation in patients with a wide range of functional requirements. Yet challenges associated with proximal-distal femoral dimensional mismatch, preservation of bone stock, and minimally invasive approaches have led to exploration into alternative implant designs. Short stem designs focusing on a stable metaphyseal fit have emerged to address these issues in total hip replacement (THR). Uncemented metaphyseal-engaging short stem implants are stable and are associated with proximal bone remodeling closer to the metaphysis when compared with conventional stems and they also have comparable clinical performances. Short stem metaphyseal-engaging implants can meet the goals of a successful THR, including tolerating a high level of patient function, as well as durable fixation.
authors.affiliation: Northwestern University, Feinberg School of Medicine, 680 North Lakeshore Drive, Suite 924, Chicago, Illinois 60611, USA.
authors.forename: S D
authors.initials: SD
authors.lastname: Stulberg
authors.forename: R M
authors.initials: RM
authors.lastname: Patel
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation*; D016723:Bone Remodeling; D005260:Female; D005269:Femur / Q000000981:diagnostic imaging / Q000601:surgery*; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D010865:Pilot Projects; D011183:Postoperative Complications; D011446:Prospective Studies; D011474:Prosthesis Design; D011859:Radiography; D015996:Survival Rate; D016896:Treatment Outcome; D014481:United States / Q000453:epidemiology
keywords: Metaphyseal-engaging femoral implants; Short stems; Uncemented total hip replacement