title: Tibial shaft stress fractures resulting from placement of navigation tracker pins.
abstract: The use of navigation during joint arthroplasty is believed to allow better placement of components. Gross fracture or stress fracture through navigation tracker pin placement is a complication reported in the literature. This case series presents details of stress fracture of tibial shaft through navigation pin track in 3 patients of 220 cases who underwent total knee arthroplasty at our institution. All the fractures eventually healed after a course of protected weight bearing. As a result, we use smaller-diameter self-tapping and self-drilling pins routinely and avoid placement of pins in the diaphysis and ensure that pins are inserted in different plains during insertion into metaphysis.
authors.affiliation: Rothman Institute of Orthopedics, Thomas Jefferson UniversityHospital, Philadelphia, PA, USA.
authors.forename: David
authors.initials: D
authors.lastname: Hoke
authors.forename: S Mehdi
authors.initials: SM
authors.lastname: Jafari
authors.forename: Fabio
authors.initials: F
authors.lastname: Orozco
authors.forename: Alvin
authors.initials: A
authors.lastname: Ong
mesh_terms: D000368:Aged; D019645:Arthroplasty, Replacement, Knee / Q000295:instrumentation / Q000379:methods*; D001858:Bone Nails / Q000009:adverse effects*; D005260:Female; D017102:Fracture Healing / Q000502:physiology; D015775:Fractures, Stress / Q000000981:diagnostic imaging / Q000209:etiology* / Q000534:rehabilitation; D006801:Humans; D007719:Knee Joint / Q000502:physiology; D008297:Male; D008875:Middle Aged; D011859:Radiography; D016059:Range of Motion, Articular / Q000502:physiology; D025321:Surgery, Computer-Assisted / Q000295:instrumentation / Q000379:methods*; D013978:Tibial Fractures / Q000000981:diagnostic imaging / Q000209:etiology* / Q000534:rehabilitation; D016896:Treatment Outcome; D016474:Weight-Bearing / Q000502:physiology