Purpose: Ligamento-muscular reflex pattern following stimulation of the anterior talofibular ligament (ATFL) was examined.
Methods: The peroneus longus (PL), the tibialis anterior (TA), and tibialis posterior (TP) muscles were investigated in sixteen patients with functional ankle instability (FAI) and 16 age- and gender-matched controls. The ATFL was stimulated with a fine wire electrode while electromyographic (EMG) activities were recorded during isometric foot contraction of 20% maximal force in plantarflexion, dorsiflexion, supination and pronation. The complete measurement was repeated after a peroneal block anesthesia.
Results: Statistically significant changes in post-stimulus EMG activity were observed in all three muscles and all four tested foot positions. In supination, the PL showed no reactions in both groups before and after anesthesia. The post-stimulus inhibition of the TA seen after 80 and 180 ms disappeared in controls after anesthesia. The TP had similar inhibitory responses in both groups.
Conclusion: Ligamento-muscular reflex pattern is alterated in FAI. While early reactions are essential in protecting the ankle joint in sudden movements, the later responses indicate a supraspinal control of neuromuscular stability of the ankle joint. Proprioceptive rehabilitation of the PL, TA, and TP is crucial in FAI to compensate for post-traumatic ligamentomuscular reflex deficiencies.
Level Of Evidence: II.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s00167-020-06232-w | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Can a structured home-based rehabilitation program reduce dorsal central wrist pain?
Hand Surg Rehabil
February 2024
Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong.
Article Synopsis
- Dorsal wrist pain often results from injuries to the peri-scapholunate ligament and can negatively impact functionality, but evidence on effective conservative treatments is limited.
- A 16-week home-based rehabilitation program was designed, including education, immobilization, and strengthening exercises, aimed at easing pain and enhancing wrist function in affected patients.
- Results showed significant improvements in pain levels, grip strength, and overall performance scores, although mental health outcomes remained unchanged and adherence to the program was moderately good.
Alteration of Ligamento-Muscular Reflex Patterns After Cutaneous and Periarticular Desensitization of the Basal Thumb Joint: An Electromyographic Study.
J Hand Surg Am
June 2023
Department of Clinical Science and Education, Karolinska Institutet, Sjukhusbacken 10, 118 83 Stockholm, Sweden.
Purpose: Stimulation of the dorsoradial ligament (DRL) of the first carpometacarpal joint (CMC-1) has shown a ligamento-muscular reflex pathway between the DRL and CMC-1 stabilizing muscles in healthy volunteers. However, it remains unclear how this ligamento-muscular reflex pattern is altered after anesthetizing sensory skin receptors and administering a further periarticular block around the CMC-1 joint, which may influence the dynamic aspects of joint stability.
Methods: Ligamento-muscular reflexes were obtained from the extensor pollicis longus, abductor pollicis longus, abductor pollicis brevis, and the first dorsal interosseous muscles in 10 healthy participants after establishing superficial anesthesia of the skin around the CMC-1.
Alterated ligamento-muscular reflex pattern after stimulation of the anterior talofibular ligament in functional ankle instability.
Knee Surg Sports Traumatol Arthrosc
May 2021
Department of Otolaryngology, University Hospital, Franz-Joseph-Strauß-Allee 11, 93053, Regensburg, Germany.
Purpose: Ligamento-muscular reflex pattern following stimulation of the anterior talofibular ligament (ATFL) was examined.
Methods: The peroneus longus (PL), the tibialis anterior (TA), and tibialis posterior (TP) muscles were investigated in sixteen patients with functional ankle instability (FAI) and 16 age- and gender-matched controls. The ATFL was stimulated with a fine wire electrode while electromyographic (EMG) activities were recorded during isometric foot contraction of 20% maximal force in plantarflexion, dorsiflexion, supination and pronation.
Ligamento-Muscular Reflex Patterns Following Stimulation of a Thumb Carpometacarpal Ligament: An Electromyographic Study.
J Hand Surg Am
March 2019
Department of Clinical Science and Education, Karolinska Institute, Stockholm, Sweden; Arcademy, Sophiahemmet Hospital, Stockholm, Sweden.
Purpose: The dorsoradial ligament (DRL) is essential for stability of the first carpometacarpal joint (CMC1) and is innervated with nerve endings and mechanoreceptors known to contribute to joint proprioception. The influence of these nerve endings on the neuromuscular stability of CMC1 is not yet known. This study investigated whether a ligamento-muscular reflex pathway is present between the DRL and CMC1 muscles.
View Article and Find Full Text PDFMechanoreceptors distribution in the human medial collateral ligament of the elbow.
Orthop Traumatol Surg Res
April 2018
Department of Orthopedic Surgery, University of Ulsan, Asan Medical Center, Seoul, Korea. Electronic address:
Background: The human elbow maintains its stability mainly through its bony structure. Stability is enhanced by ligamentous structures. To allow the ligamento-muscular reflex, which protects against strain and stress, mechanoreceptors are embedded in the ligament.
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!