MediAI

Osteochondral Lesion of the Talus: MRI Diagnosis, Imaging Pearls, AI Applications, and Future Directions Introduction Ankle sprains are among the most common musculoskeletal injuries worldwide, accounting for millions of emergency department and outpatient visits each year. While most patients recover uneventfully, a significant subset continues to experience chronic pain, swelling, instability, locking sensations, and reduced athletic performance long after the initial injury. One of the most frequently overlooked causes of persistent ankle symptoms is an osteochondral lesion of the talus (OLT), also known as a talar dome osteochondral defect. These lesions involve injury to both the articular cartilage and underlying subchondral bone and may progress to chronic disability and premature ankle osteoarthritis if not diagnosed early. The presented case involves a 35-year-old woman with persistent ankle pain 10 months after an inversion injury. Radiographs demonstrated a lucent defect in ...

Introduction Delayed onset muscle soreness (DOMS) represents a common yet clinically significant phenomenon encountered in sports medicine, musculoskeletal radiology, rehabilitation, and orthopedics. While DOMS is typically self-limiting, its manifestation following hamstring injury poses diagnostic challenges because its symptoms overlap with partial muscle tears, hematomas, or myotendinous junction injuries. In this post, we present an in-depth discussion of DOMS following hamstring injury, anchored on the case of a 31-year-old male with right hamstring pain . Using the latest global evidence and imaging findings, this column will explore DOMS from pathophysiology to prognosis , highlighting the role of magnetic resonance imaging (MRI) and evidence-based treatment strategies. Pathophysiology DOMS after hamstring injury is primarily associated with eccentric contractions during running, sprinting, or resistance training. The mechanisms include: Microscopic myofibrillar di...

  Introduction Traumatic hallux valgus, particularly when caused by injury to the medial collateral ligament (MCL) of the first metatarsophalangeal (MTP) joint, represents a rare but clinically significant condition. Unlike idiopathic hallux valgus, which is commonly associated with genetic predisposition, footwear, or chronic biomechanical stresses, traumatic hallux valgus results from acute injury mechanisms. This column aims to provide an expert-level synthesis of current evidence on the pathophysiology, epidemiology, clinical presentation, imaging features, differential diagnosis, management, and prognosis of this condition, while integrating case-based imaging findings. All figures are drawn from the attached case review for educational illustration. Pathophysiology Hallux valgus is defined as a lateral deviation of the great toe relative to the first metatarsal. In traumatic hallux valgus, the deformity arises acutely following disruption of stabilizing structures of the MTP ...