Bioengineering. Dynamic Evaluation of the Contact Characteristics and Three-Dimensional Motion for the Ankle Joint with Lateral Ligament Injuries.

Injuries to the lateral collateral ligaments of the ankle joint are among the most frequently occurring injuries at the lower limb. The present study was conducted for the purpose of establishing the basis for the development of a quantitative diagnostic procedure for such injuries. To achieve this goal, the effect of four types of ligament injuries on the three-dimensional mechanical characteristics of the ankle were investigated. These types of injuries consisted of: 1) isolated tear of the anterior talofibular ligament; 2) isolated tear of the calcaneofibular ligament; 3) isolated tear of the posterior talofibular ligament; and 4) combined tear of both the anterior talofibular ligament and the calcaneofibular ligament. The experiments were conducted on 31 amputated lower limbs and consisted of comparing the three-dimensional load-displacement and flexibility characteristics of the ankle joint prior to and following sectioning of selected ligaments. The experimental and analytical procedures used to derive these characteristics was developed previously by the authors [3, 24]. From the results of this study it was concluded that the three-dimensional flexibility characteristics of the ankle joint are strongly influenced by damage to the lateral collateral ligaments. Furthermore, it was found that each type of ligament injury produced unique and identifiably changes in the flexibility characteristics of the ankle. These unique changes, which are described in detail in this paper, can be used to discriminate between the different types of ligament injuries. Consequently, it was concluded that it is feasible to develop a quantitative diagnostic procedure for ankle ligament injuries based on the effect of the injury on the flexibility characteristics of the ankle.

Download Full-text

A Kinematic Study of Ankle Joint Instability Due to Rupture of the Lateral Ligaments

Foot & Ankle International ◽

10.1177/107110079701801109 ◽

1997 ◽

Vol 18 (11) ◽

pp. 729-734 ◽

Cited By ~ 17

Author(s):

Takeshi Hashimoto ◽

Suguru Inokuchi

Keyword(s):

Ankle Joint ◽

Three Dimensional ◽

Ligament Injury ◽

Heel Strike ◽

Lateral Ligament ◽

Patients Âgés ◽

Kinematic Study ◽

Lateral Collateral Ligaments ◽

Lateral Ligament Injury ◽

Kinematic Evaluation

Kinematic analysis of patients who have ruptured the ligaments of the ankle joint was performed to evaluate the function of those ligaments. Ten patients with ruptured lateral collateral ligaments and 10 normal volunteers were examined. Patients’ ages ranged from 17 to 29, averaging 20.9 years old. We performed kinematic evaluation by a three-dimensional optical analytic technique using surface markers. According to our results, the ankles with lateral ligament injury abnormally pronated and rotated externally at the time of heel strike and abnormally supinated and rotated internally during the acceleration phase.

Download Full-text

Response to “Letter Regarding: Talar Osteonecrosis After Subchondroplasty for Acute Lateral Ligament Injuries: Case Series”

Foot & Ankle Orthopaedics ◽

10.1177/2473011420922807 ◽

2020 ◽

Vol 5 (2) ◽

pp. 247301142092280

Author(s):

Ian M. Foran ◽

Daniel D. Bohl ◽

Anand Vora ◽

Kamran S. Hamid ◽

Simon Lee

Keyword(s):

Case Series ◽

Lateral Ligament ◽

Ligament Injuries

Download Full-text

Repair of Chronic Lateral Ligament Injuries

Comprehensive Manuals of Surgical Specialties - Manual of Sports Surgery ◽

10.1007/978-1-4612-4666-4_21 ◽

1987 ◽

pp. 162-170

Author(s):

Lewis A. Yocum

Keyword(s):

Lateral Ligament ◽

Ligament Injuries

Download Full-text

Determination of the Optimal Syndesmosis Fixation Angle Using Mortise View of The Ankle Joint

Journal of the American Podiatric Medical Association ◽

10.7547/21-034 ◽

2021 ◽

Author(s):

Oğuzhan Tanoğlu ◽

İzzet Özay Subaşı ◽

Mehmet Burak Gökgöz

Keyword(s):

Ankle Joint ◽

Articular Surface ◽

Three Dimensional ◽

Vertical Plane ◽

Functional Results ◽

Practical Method ◽

Medial Malleolus ◽

Significant Difference ◽

Horizontal View ◽

Mortise View

Background: Syndesmosis is an important soft tissue component supporting the ankle stability and commonly injured accompanying with ankle fractures. The accurate reduction and fixation of syndesmosis is essential to obtain better functional results. Therefore, we aimed to find a practical method using the mortise view of ankle to determine the optimal syndesmosis fixation angle intraoperatively. Methods: We randomly selected 200 adults (100 women and 100 men) between 18 - 60 years of age. Three-dimensional anatomical models of tibia and fibula were created using Materialise MIMICS 21. We created a best fit plane on articular surface of medial malleolus and a ninety degrees vertical plane to medial malleolus plane. We determined two splines on cortical borders of tibia and fibula distant from the most superior point of ankle joint in horizontal view. We created two spheres that fit to the predefined splines. The optimal syndesmosis fixation angle was determined measuring the angle between the line connecting the center points of spheres, and the ninety degrees vertical plane to medial malleolus plane. Results: We observed no statistically significant difference between gender groups in terms of optimal syndesmosis fixation angles. The mean age of our study population was 47.1 {plus minus} 10.5. The optimal syndesmosis fixation angle according to mortise view was found as 21 {plus minus} 4.3 degrees. Conclusions: We determined the optimal syndesmosis fixation angle as 21 {plus minus} 4.3 degrees in accordance with the mortise view of ankle. The surgeon could evaluate the whole articular surface of ankle joint with the medial and lateral syndesmotic space in mortise view accurately and at the same position syndesmosis fixation could be performed at 21 {plus minus} 4.3 degrees.

Download Full-text