Post-traumatic lipid inclusion cyst.

Post-traumatic lipid inclusion cysts are a rare entity seen following fractures in paediatric patients. They often occur in the distal radius, developing 1-3 months following an extra-articular fracture. Although benign and self-limiting in nature, adequate awareness and accurate radiographic interpretation is key in avoiding further unnecessary non-invasive or invasive investigations.

Chronic Pectoralis Major Rupture Reconstruction With Interpositional Acellular Dermal Allograft.

Pectoralis major tendon (PMT) rupture commonly occurs in males 20 to 39 years of age. PMT rupture is most often associated with gym-based exercise, with attempted bench press being the most common causative event, but it is also associated with contact or impact sports. Delayed presentation, misdiagnoses, and chronic PMT rupture can result in a therapeutic dilemma.

Metal-on-Metal Disease in High-Motion Wrist Arthroplasty.

Metal-on-metal disease (MOMD) is a rare condition following arthroplasty and has predominantly been reported following hip and knee replacement. Isolated case reports exist with respect to MOMD following total wrist arthroplasty-however, the literature remains limited. Here, we present the history and radiographic and histopathologic features of such a case, and summarize the literature and provide management recommendations.

Failure of Dermal Allograft Repair of Massive Rotator Cuff Tears in Magnetic Resonance Imaging and Clinical Assessment.

Background: Massive retracted rotator cuff tears represent a therapeutic dilemma, particularly in the young and middle-aged patients who are not appropriate for a reverse total shoulder replacement. Interposition grafting using human dermal allograft offers an alternative treatment.

Methods: A retrospective review of all patients who underwent interposition grafting using human dermal allograft between December 2013 and May 2015 for massive rotator cuff tears at our tertiary referral center was performed.

Low prevalence of unexpected popliteal DVT detected on routine MRI assessment of the knee.

Objective: The purpose of this study was to document the appearance and determine the prevalence of findings suspicious for popliteal vein thrombosis on magnetic resonance (MR) assessment of the knee joint.

Methods: A total of 2888 MR examinations were retrospectively reviewed and classified as illustrating either normal appearing popliteal vein or findings suspicious for popliteal vein thrombosis.

Results: A total of 2879 MR studies were assessed as having a normal appearing popliteal vein.

Imaging of postoperative avascular necrosis of the ankle and foot.

Avascular necrosis (AVN) of the ankle and foot is an uncommon and often unexpected postoperative complication in patients with persistent pain and disability postprocedure. Artifacts from metallic implants may obscure characteristic imaging signs of AVN, and radiography and computer tomography are the mainstay imaging modalities of the postoperative ankle and foot. MRI and nuclear medicine imaging play an important complementary role in problem solving and excluding differential diagnostic considerations including infection, nonunion, occult fracture, and secondary osteoarthritis.

Body wall thickness in adults and children--relevance to penetrating trauma.

Aim: Although uncommon in children, penetrating trauma may be associated with considerable risk of morbidity and mortality. In part this reflects the child's thinner body wall. No data exists on the difference in body wall thickness in children as compared to adults.