<prompt> Ankle sprain due to forced inversion of a plantar Hexed foot is due to injury to:Anterior talofibular ligamentPosterior talofibular ligamentCalcaneofibular ligamentPosterior fibres of deltoid  <response>: Ans. a. Anterior talofibular ligament Ref: Apley 8e p733-736; Ockwood and Greens Fracture in Adults 6e p2152-2153Over 90 of ankle ligament injuries twisted ankle or ankle sprain involve the lateral ligament complex, usually the anterior tibiofibular ligament.Ankle LigamentsMedial Collateral LigamentLateral Collateral Ligament Also known as deltoid ligamentQ It is a strong ligament and major stabilizer of the ankle jointQ. Two components:- Superficial: Resist eversion of hind footQ Talo-tibial, naviculo- tibial, calcanio-tibial- Deep Intra-articular: Prevents external rotation of talus Anterior and posterior talotibialQ It is a weak ligament, so involved in over 90 of ankle ligament injuriesQ It has three parts:- Anterior talofibular: MC injuredQ- Middle calcaneofibular: 2nd MC injuredQ- Posterior talofibular: Torn in most severe injuries 