The authors present a methodology to measure the frontal plane angular and linear displacement and the transverse plane angular displacement of subtalar joint movement. This method is combined with a modification of the Kirby method for determining the transverse plane projection of the subtalar joint axis onto the plantar foot. A mathematical model is then used to construct the subtalar joint axis into a three-dimensional linear equation. Data are obtained from an in vivo series of 62 feet that indicates that within acceptable clinical errors of measurement the subtalar joint is a ginglymus type of joint that moves around a single fixed axis. Results also indicate that the subtalar joint axis is more superior and lateral to the neutral foot than any previous studies on cadaver feet have shown. Finally, the authors show that once the subtalar joint axis can be accurately located, the torque on the joint axis produced by ground reactive forces and muscular forces can be computed.
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http://dx.doi.org/10.7547/87507315-82-1-1 | DOI Listing |
J Foot Ankle Surg
January 2025
Surgical Fellow, Florida Orthopedic Foot & Ankle Center Fellowship, 5741 Bee Ridge Rd #490, Sarasota, FL 34233. Electronic address:
Joint arthrodesis is a very common surgical approach in foot and ankle surgery at various anatomic levels. Several techniques have demonstrated the ability to provide successful fusion with appropriate preparation of the joint in question. With that in mind, the joint preparation, regardless of approach or instrumentation, is consistently the most time-consuming.
View Article and Find Full Text PDFArthrosc Sports Med Rehabil
December 2024
New England Baptist Hospital, Boston, Massachusetts, U.S.A.
Purpose: To characterize radiographic foot/ankle bony abnormalities in elite-level, asymptomatic male basketball athletes and to investigate the association between anthropometric (age, height, weight) or sport-specific characteristics (total exposures, player position, pregame ankle taping) and the prevalence of abnormal radiographic findings in asymptomatic basketball athletes.
Methods: Elite-level basketball players who underwent routine, preseason static radiographic imaging, including anteroposterior, lateral, and mortise views of the ankle were included. Radiographs were collected from asymptomatic athletes participating in preseason history and physical with negative anterior drawer/talar tilt test.
JBJS Essent Surg Tech
January 2025
The Ohio State University College of Medicine, Columbus, Ohio.
Background: An all-inside endoscopic flexor hallucis longus (FHL) tendon transfer is indicated for the treatment of chronic, full-thickness Achilles tendon defects. The aim of this procedure is to restore function of the gastrocnemius-soleus complex while avoiding the wound complications associated with open procedures.
Description: This procedure can be performed through 2 endoscopic portals, a posteromedial portal (the working portal) and a posterolateral portal (the visualization portal).
J Clin Med
December 2024
Gynecology And Obstetrics Department, Ege University, 35040 Izmir, Turkey.
: This study aims to examine the effects of clinical exercise training on foot plantar pressure, the subtalar joint, and the gait cycle during pregnancy. : The study was planned as a randomized, controlled, and single-blind study. Participants' demographic information, obstetric evaluation, physical activity level, fall history, and pain evaluation were recorded.
View Article and Find Full Text PDFBackground: Pediatric flexible flatfoot (FFF) is a common condition characterized by the collapse of the medial longitudinal arch, which can lead to pain and functional impairment in a subset of patients. Subtalar arthroereisis (AR) is a minimally invasive procedure that corrects FFF by limiting excessive pronation of the subtalar joint. Two main techniques exist: endosinotarsal AR, which involves placing an implant in the sinus tarsi, and exosinotarsal AR, which uses a screw external to the sinus tarsi.
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