Functional Outcome of Extensor Mechanism Salvage in Patella Fracture Non-union Using Krackow Sutures: A Case Report.

Patellar fractures can lead to extensor mechanism dysfunction if not repaired properly, impacting knee function and mobility, and this complication can be challenging to manage, especially in cases where previous surgical interventions have failed. The aim of this study was to evaluate the functional outcome of the salvaged extensor mechanism in patella fracture non-union using Krakow sutures in a 61-year-old female patient who presented with knee pain, reduced flexion, and a 40-degree extension lag after two previous patellar fracture surgeries using tension band wiring resulted in non-union. Despite rehabilitation attempts, her knee function remained compromised.

Central ossifying fibroma of mandible.

Ossifying fibroma (OF) is a rare, benign, fibro-osseous lesion of the jawbone characterised by replacement of the normal bone with fibrous tissue. The fibrous tissue shows varying amount of calcified structures resembling bone and/or cementum. The central variant of OF is rare, and shows predilection for mandible among the jawbone.

Procedure for chromatography involving sample solvent with higher elution strength than the mobile phase.

In preparative chromatography, often the solubility of the sample in the mobile phase is limited, making the mobile phase unsuitable as a solvent for preparation of load. Generally, solvents that have high solubility for the sample also have higher elution strengths than the mobile phase. Additionally, at high loading volumes, these strong sample solvents are known to adversely affect the band profiles leading to poor chromatographic performance.