Terry Thomas sign and the ring sign of scapholunate instability

The open-ring sign.

A 12-year-old boy presented to us with subacute onset of progressive quadriparesis and blurring of vision in the right eye. His sensorium was normal. There was hyper-reflexia and spasticity in all four limbs and the plantar reflex was bilaterally extensor. Vision in the right eye was 6/18. The fundus examination was normal. Cerebrospinal fluid revealed normal sugar, normal cells with raised pro...

“The Cliff Sign” - A New Radiographic Sign Of Hip Instability

Scapholunate Instability

Scapholunate instability is the most common carpal instability. The evaluation and treatment of scapholunate instability is controversial and the outcome unpredictable. This article will review the pertinent ligamentous anatomy of the wrist and carpal kinematics. There will be a discussion of the clinical presentation, examination, and diagnostic testing of the patient suspected of having scaph...

Traffic Sign Classification Using Ring Partitioned Method

--Traffic sign recognition usually consists of two parts : detection and classification. In this paper we describe the classification stage using ring partitioned method. In this method, first the RGB image is converted into gray scale image using color thresholding and histogram specification technique. This gray scale image, called as specified gray scale image is invariant to the illuminatio...

Natural Selection: Sign, Sign, Everywhere a Sign

Natural selection is an important factor influencing variation in the human genome, but most genetic studies of natural selection have focused on variants with unknown phenotypic associations. This trend is changing. New studies are rapidly revealing the effects of natural selection on genetic variants of known or likely functional importance.