Objective: We describe a technique that records the sensory nerve action potential (SNAP) of the medial plantar proper digital nerve (MPPDN), which is the final sensory branch of the medial plantar nerve.
Methods: We obtained antidromic MPPDN responses from 118 healthy volunteers, with surface recording electrodes placed on the medial side of the first metatarsal head of the great toe, with electrical stimulation applied at the 40% distance of the heel to great toe reference line. Antidromic SNAP parameters were recorded and normative reference values were obtained.
Results: The stimulation site that corresponded to 40% of the reference line was located at a mean distance of 8.7+/-1.2 cm from the recording electrodes. MPPDN responses were easily obtained in all but 9 limbs. The mean SNAP amplitudes obtained by our technique were 16.1+/-6.7 microV, and the lower and upper range values were 6.4 microV and 34.4 microV, respectively.
Conclusion: Antidromic stimulation of the MPPDN at a distance of 8-10 cm from the medial side of the first metatarsal head of the great toe yields in reliable SNAP responses.
Significance: This technique should be useful in the evaluation of the MPPDN involvement in Joplin's neuroma.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.clinph.2010.01.033 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Optimizing the graft size in the Evans osteotomy to minimize the calcaneocuboid joint pressure by highly realistic in-silico analysis.
Sci Rep
January 2025
Division of Mechanical and Biomedical Engineering, Ewha Womans University, Seoul, 03760, Republic of Korea.
This contribution details a new high-fidelity finite element analysis (FEA) methodology for the investigation of the effect of the graft size on the pressure distribution developing at the calcaneocuboid joint after the Evans osteotomy procedure. The FEA model includes all 28 bones of the foot up to the distal end of fibula and tibia as well as soft tissues, tendons, and muscles. The developed FEA model was validated by comparing the in-vivo pressure distribution on the foot plantar with the in-silico results, resulting in a low deviation equal to 7.
View Article and Find Full Text PDFDevelopment of an interpretable model for foot soft tissue stiffness based on gait plantar pressure analysis.
Front Bioeng Biotechnol
January 2025
Department of Physical Education, Tsinghua University, Beijing, China.
Purpose: Plantar soft tissue properties affect foot biomechanics during movement. This study aims to explore the relationship between plantar pressure features and soft tissue stiffness through interpretable neural network model. The findings could inform orthotic insole design.
View Article and Find Full Text PDFEndoscopic Treatment of Chronic Plantar Fasciitis with Plantar Heel Spur Pain: A Combined Suprafascial and Infrafascial Approach.
Foot Ankle Int
January 2025
Sirindhorn Hospital, Bangkok Metropolitan Administration, Bangkok, Thailand.
Background: To determine whether a combined endoscopic suprafascial and infrafascial approach with medial and lateral portals is a safe and effective technique for the endoscopic treatment of chronic plantar fasciitis with plantar heel spur pain.
Methods: An interventional, prospective study was conducted. A total of 61 patients with plantar fasciitis with plantar heel spur pain underwent an endoscopic plantar fasciotomy with plantar heel spur resection, using a combined suprafascial and infrafascial approach between January 2018 and August 2022.
Rotational flap versus long plantar flap for transmetatarsal amputation closure following revascularization.
J Vasc Surg Cases Innov Tech
April 2025
Hospital Universitário Professor Edgard Santos, Federal University of Bahia, Salvador, Bahia, Brazil.
Objective: The integrity of the plantar flap is important for transmetatarsal amputation (TMA) classic closure. However, in ischemic wounds, the plantar flap can be compromised, making the TMA coverage difficult. The aim of this study was to compare the outcomes of rotational vs long plantar flaps for transmetatarsal amputation closure in patients with dysvascular partial foot amputations.
View Article and Find Full Text PDFAnkle muscle strength and activation are associated with walking patterns in preschool and school-age children.
PLoS One
January 2025
Faculty of Sport Sciences, Waseda University, Saitama, Japan.
Walking patterns can differ between children and adults, both kinematically and kinetically. However, the detailed nature of the ankle pattern has not been clarified. We investigated musculature, biomechanics, and muscle activation strategies and their relevance to walking performance in preschool (PS) and school children (SC), with adults (AD) as reference.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!