Arrangements of the lateral collateral ligaments of the ankle are complex. Injuries to these ligaments can occur in the inverted planter flexed position of the ankle. Traditionally, the anterior talofibular ligament (ATFL) is the first ligament involved in such ankle injuries. We reviewed the anatomical arrangements of the lateral ankle. Twenty ankles from ten Caucasian cadavers were carefully dissected. Length and width of each ligament were measured in neutral, dorsiflexion and plantar flexion. The angle between the ATFL and other ligaments was also recorded. ATFL was present in 95% of ankles dissected. Five ankles showed two slip configuration of the ATFL. One ATFL was noted as being significantly thicker and another one was significantly narrow. Mean length of the ATFL in neutral was 15.5 mm (range 10-21 mm), which increased in plantar flexion to 18 mm (range 11-25 mm) and decreased slightly in dorsiflexion to 14.5 mm (range 10-19 mm). The calcaneofibular ligament was present in all dissections and had a mean measurement of 18.5 mm in neutral (range 14-23 mm) decreasing to 17 mm in planter flexion and 15.5 mm in dorsiflexion. Treating ligamentous ankle injuries can be very costly, thus creating a large economic burden to both patients and health institutions. Understanding the anatomical characteristics of the lateral collateral ligament complex of the ankle provides the basic foundation for understanding injuries and helps to clinically manage such injuries appropriately.
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http://dx.doi.org/10.1007/s12565-011-0109-7 | DOI Listing |
J Pediatr Orthop
January 2025
Department of Pediatric Orthopedic Surgery, Hospital for Special Surgery, New York, NY.
Background: Medial meniscus ramp lesions (MMRLs) are commonly associated with anterior cruciate ligament (ACL) injuries and may increase the risk of graft failure after ACL reconstruction (ACLR) if undiagnosed or left untreated. Although MMRLs have been extensively reported in adults, there are limited studies describing them in pediatric patients undergoing ACLR. The purpose of this study was to perform a systematic review and meta-analysis to determine the pooled prevalence of and risk factors for MMRLs in pediatric patients with ACL injuries.
View Article and Find Full Text PDFACS Synth Biol
January 2025
Department of Chemical and Biomolecular Engineering (BK21 Four), Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea.
We herein developed an ultrasensitive and rapid strategy to identify genomic nucleic acids by integrating a clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated protein 13a (Cas13a) into our recently developed isothermal technique, nicking and extension chain reaction system-based amplification (NESBA) reaction. In this technique, named CESBA, the NESBA reaction isothermally produces a large amount of RNA amplicons from the initial target genomic RNA (gRNA). The RNA amplicons bind to the crispr RNA (crRNA) and activate the collateral cleavage activity of Cas13a, which would then cleave the reporter probe nearby, consequently producing the final signals.
View Article and Find Full Text PDFAm J Sports Med
January 2025
Integrative Neuromuscular Sport Performance Laboratory, Faculty of Kinesiology, University of Calgary, Calgary, Alberta, Canada.
Background: The individual variation in on-snow performance outcomes after anterior cruciate ligament (ACL) reconstruction (ACLR) in elite alpine ski racers has not been reported and may be influenced by specific injury characteristics.
Purpose: To report the performance statistics of elite ski racers before and after ACLR and to identify surgical and athlete-specific factors that may be associated with performance recovery.
Study Design: Descriptive epidemiological study.
SICOT J
January 2025
Department of Orthopaedic Surgery, Joint Replacement Unit, Kuala Lumpur Hospital, Ministry of Health Malaysia, Jalan Pahang, 50586 Kuala Lumpur, Malaysia.
Introduction: Extraarticular deformity (EAD) with knee arthritis is a complex condition involving tri-planar bone deformity with pathological malalignment and chronic soft tissue contracture or laxity in the knee joint. Intraarticular correction by TKA, which was previously performed with conventional manual jig by mechanical alignment technique, had its limits and difficulties especially extensive soft tissue release and risk of jeopardizing the collateral ligaments. Robotic technology allows for reproducible and precise execution of surgical plan and allows adjustment to various new personalised alignment philosophy including functional alignment (FA).
View Article and Find Full Text PDFOrthop J Sports Med
January 2025
Department of Orthopaedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.
Background: The aim of surgical treatment for posterolateral rotatory instability (PLRI) of the elbow is to restore the integrity of the lateral ulnar collateral ligament (LUCL), with ligamentous reconstruction being the preferred option for recurrent symptomatic PLRI. However, there is no clinical evidence demonstrating the superiority of reconstruction versus repair. Treatment options currently depend on the cause of the LUCL injury and surgeon preference.
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