Multimodality Approach to a Stener Lesion: Radiographic, Ultrasound, Magnetic Resonance Imaging, and Surgical Correlation.

The ulnar collateral ligament (UCL) of the thumb metacarpophalangeal joint is a static stabilizer that may rupture from a hyperabduction injury. Although some UCL tears may heal with immobilization, outcomes are worse for Stener lesions, in which the proximal ligament stump slips out from beneath the adductor pollicis aponeurosis and is entrapped proximal and superficial to the aponeurosis, preventing primary healing. We report the case of a patient with a Stener lesion with radiographic, ultrasound, and magnetic resonance imaging correlation, subsequently confirmed with intraoperative photographs.

Incidence of tendon entrapment and dislocation with calcaneus and pilon fractures on CT examination.

Objective: To examine the association between tibial pilon and calcaneal fracture classification and tendon entrapment or dislocation.

Materials And Methods: After institutional review board approval, we retrospectively reviewed consecutive CT scans with calcaneal or pilon fractures from 5 years at a level 1 trauma center. We categorized calcaneal fractures according to the Sanders classification, and pilon fractures according to the Ruedi and Allgower and the Arbeitsgemeinschaft für Osteosynthesefragen-Orthopaedic Trauma Association (AO-OTA) classifications.

Optimal detection of scapholunate ligament tears with MRI.

Background Scapholunate interosseous ligament (SLIL) injuries can often be difficult to detect using magnetic resonance imaging (MRI), especially with older 1.0 and 1.5 Tesla magnets.

Benign and malignant tumors of the foot and ankle.

Pain and focal masses in the foot and ankle are frequently encountered and often initiate a workup including imaging. It is important to differentiate benign lesions from aggressive benign or malignant lesions. In this review, multiple examples of osseous and soft tissue tumors of the foot and ankle will be presented.

Ischiofemoral impingement syndrome: a meta-analysis.

Objective: The aims of this article are to review the imaging characteristics of ischiofemoral impingement (IFI), summarize measurement thresholds for radiologic diagnosis based on a meta-analysis of the literature and raise awareness among radiologists and clinicians of this entity.

Materials And Methods: A PubMed search restricted to the English language containing the keywords "ischiofemoral impingement" and "quadratus femoris MRI" was performed, and citations in these articles were also used to identify a total of 27 studies discussing ischiofemoral impingement. After excluding case reports and non-representative studies, there were five remaining articles including 193 hip MRIs of IFI in 154 subjects (133 female, 21 male) and 135 asymptomatic control hip MRIs from 74 subjects (55 female, 19 male).

Imaging of tarsal navicular disorders: a pictorial review.

The tarsal navicular is a bone within the midfoot that plays a critical role in maintaining the arch of the foot. This bone is clinically relevant because it may be affected by a wide array of pathologies. Our approach includes a detailed description of the imaging characteristics and disorders affecting the tarsal navicular.

Prefemoral fat pad impingement syndrome: identification and diagnosis.

Fat pad impingement syndrome refers to anterior knee pain caused by hemorrhage, inflammation, fibrosis and/or degeneration of the anterior knee fat pads. Symptomatic impingement of the prefemoral fat pad can be clinically significant but easily overlooked on magnetic resonance imaging, unless looked for. It should be evaluated in patients with persistent anterior knee pain, particulary if accompanied with mechanical symptoms and lack of intra-articular pathology.

Instability of the first metatarsal-cuneiform joint: diagnosis and discussion of an independent pain generator in the foot.

Background: First metatarsocuneiform (MC) instability is recognized as a pathologic contributor to hallux valgus. There are no studies identifying the first MC joint as an independent pain generator in the foot that may require surgical arthrodesis for its management.

Materials And Methods: The authors reviewed the records of all patients with this newly described pathology in the first MC joint.

Flexor femoris muscle complex: grading systems used to describe the complete spectrum of injury.

The flexor femoris muscle complex (FFMC) is also known as the hamstring muscle complex or commonly as the "hamstrings." Three muscles comprise this group: the biceps femoris, the semitendinosus, and semimembranosus. The FFMC is one of the most frequent sites of muscle injury.