A New Reference to Evaluate Syndesmosis in Sagittal Plane Radiographs of the Ankle: The Lateral Posterior Ankle Ratio
| Autor: | Önder Kalenderer, Mert Kumbaraci, Emre Bilgin, Ibrahim Kusak, Ali Turgut, Mert Filibeli |
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| Rok vydání: | 2019 |
| Předmět: |
Adult
Male Syndesmosis Adolescent medicine.medical_treatment Radiography Young Adult 03 medical and health sciences Sex Factors 0302 clinical medicine Reference Values medicine Humans Ankle Injuries Reduction (orthopedic surgery) Aged Aged 80 and over 030203 arthritis & rheumatology Orthodontics 030222 orthopedics Tibia business.industry General Medicine Middle Aged Sagittal plane medicine.anatomical_structure Fibula Coronal plane Female Ankle business Ankle Joint |
| Zdroj: | Journal of the American Podiatric Medical Association. 109:426-430 |
| ISSN: | 1930-8264 8750-7315 |
| DOI: | 10.7547/17-134 |
| Popis: | Background: Confirmation of anatomical reduction of ankle syndesmosis is mandatory because improper reduction leads to poor functional results. Coronal plane evaluation of syndesmosis is well described in the literature, but there is little information about sagittal plane evaluation. We sought to evaluate the relationship of fibula and tibia in the sagittal plane and create a new reference that can be applied easily and reliably. Methods: Lateral ankle radiographs of 337 individuals with no history of ankle fracture were evaluated. A line was drawn between the anterior and posterior cortices of the distal lateral tibia, and the length of this line was measured (line 1). The distance between the anterior and posterior cortices of the fibula on this line was measured, and the center of this second distance was identified and marked. The posterior half of the fibular width was divided by line 1 and was named the lateral posterior ankle ratio (LPAR). Statistical analysis was performed by side and sex. Results: Mean patient age was 38.6 years; mean LPAR was 0.48. There was a significant difference between men and women by age (P < .001) and LPAR (P = .01). There was no significant difference between right and left ankles by age (P = .63) and LPAR (P = .64). The LPAR was less than 0.40 in 6.8% of the radiographs, 0.40 to 0.50 in 57.9%, and greater than 0.50 to 0.60 in 32.9%. Conclusions: The LPAR should approximate 50% in normal lateral ankle images and, by extrapolation, after syndesmotic reduction. |
| Databáze: | OpenAIRE |
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