26 Achilles and patella tendon pain is very common, but the precise nature of the complaint is difficult to diagnose and treat. The new imaging modality of ultrasound tissue characterisation (UTC) produces high resolution scans of the tendon, providing an indepth analysis of the health of the tendon tissue. In the future this technology will become indispensable for preventing tendon overload, ...

Chronic patellar tendon ruptures are a difficult clinical problem. Treatment options include repair and augmentation with hamstring tendons and other grafts. We describe a technique of extensor mechanism reconstruction using an allograft consisting of quadriceps tendon, a patellar bone block, patellar tendon, and a tibial bone block. This technique is a salvage procedure indicated only in the m...

Macrotraumatic extensor mechanism complications do occur after central third patellar tendon harvest for anterior cruciate ligament (ACL) reconstruction and include intraor postoperative patella fracture and patellar tendon rupture. These are significant complications that often require additional surgery. Intraoperative precision when harvesting the patellar tendon, bone grafting the donor sit...

Recurrent dislocation, subluxation and functional instability due to patellofemoral pain might be present in 30 % to 60 % of patients managed non-operatively for posttraumatic patella instability. Disruption of the capsule, medial patella retinaculum and/or vastus medialis obliquus have been associated with recurrent patella instability but recently the medial patellofemoral ligament (MPFL) has...

The radiological and MRI appearances of 24 knees with patellar tendonitis resistant to conservative therapy were analysed to identify the characteristic MRI appearance and to determine if the patellar morphology was abnormal. A significant thickening of the tendon was found in all cases; this was a more reliable diagnostic feature than a high signal within the superior posterior and central asp...

To cite: Ni Fhoghlu C, Ellanti P, Moriarity A, et al. BMJ Case Rep Published online: [please include Day Month Year] doi:10.1136/ bcr-2015-209942 DESCRIPTION Quadriceps tendon (QT) ruptures are uncommon injuries that predominantly affect middle-aged men. Ruptures occur as a result of direct or indirect trauma to the knee with a powerful eccentric contraction of the QT being the most frequent ca...

Introduction Acute quadriceps tendon rupture is a relatively infrequent injury with serious consequences. The current gold standard for management of an acute quadriceps tendon rupture is surgical repair with suture through transosseous patellar bone tunnels. This repair has been successful, but can be a relatively time-consuming and labor intensive procedure, with potential complications inclu...

The Insall-Salvati method of determining the position of the patella by radiography was employed in fifty-one patients with chondromalacia patellae that had been proved at arthrotomy. There was no definite relationship between chondromalacia patellae and patella alta. There was, however, a highly significant statistical difference between the ratio of the length of the patella to that of the pa...

The purpose of this study is to describe an MRI-based EMG-driven knee model to quantify tibiofemoral compressive and shear forces. Twelve healthy females participated. Subjects underwent 2 phases of data collection: (1) MRI assessment of the lower extremity to quantify muscle volumes and patella tendon orientation and (2) biomechanical evaluation of a drop-jump task. A subject-specific EMG-driv...