title: The relationship between knee arthroplasty and foot loading.
abstract: Surgeons have questioned whether foot deformity applies abnormal loading on a knee implant. A total of 24 patients with mild knee deformity underwent a static recording of foot loading prior to and at 3 months following knee replacement. Of these patients, 13 had a preoperative varus deformity. The recorded postoperative to preoperative loading in all 6 geographic sites was decreased by an average of 10%. The largest changes were observed in the hallux and lesser toe masks, whereas the postoperative to preoperative foot pressure ratio in the metatarsal head (lateral and medial), heel, and midfoot masks was 0.94. This preliminary investigation reveals a minimal change in geographic foot loading following total knee arthroplasty in patients with mild knee deformity.
authors: Loyola University Stritch School of Medicine, 2160 South First Avenue, Maywood, IL 60153, USA.
authors: Michael L
authors: ML
authors: Voronov
authors: Michael S
authors: MS
authors: Pinzur
authors: Robert M
authors: RM
authors: Havey
authors: Gerard
authors: G
authors: Carandang
authors: Joseph A
authors: JA
authors: Gil
authors: William J
authors: WJ
authors: Hopkinson
mesh_terms: D000368:Aged; D019645:Arthroplasty, Replacement, Knee / Q000379:methods*; D001696:Biomechanical Phenomena; D001827:Body Height; D001835:Body Weight; D015331:Cohort Studies; D017558:Elective Surgical Procedures / Q000379:methods; D005260:Female; D005500:Follow-Up Studies; D005528:Foot / Q000502:physiology*; D005530:Foot Deformities / Q000150:complications / Q000175:diagnosis*; D006215:Hallux Valgus / Q000150:complications / Q000175:diagnosis; D050488:Hallux Varus / Q000150:complications / Q000175:diagnosis; D006801:Humans; D007720:Knee Prosthesis; D008297:Male; D008875:Middle Aged; D020370:Osteoarthritis, Knee / Q000150:complications / Q000175:diagnosis / Q000601:surgery; D011182:Postoperative Care / Q000379:methods; D011300:Preoperative Care / Q000379:methods; D011312:Pressure; D012016:Reference Values; D012189:Retrospective Studies; D013314:Stress, Mechanical; D016896:Treatment Outcome; D016474:Weight-Bearing