An optimised method for quantifying glenoid orientation

A robust quantification method is essential for inter-subject glenoid comparison and planning of total shoulder arthroplasty. This study compared various scapular and glenoid axes with each other in order to optimally define the most appropriate method of quantifying glenoid version and inclination. Six glenoid and eight scapular axes were defined and quantified from identifiable landmarks of twenty-one scapular image scans. Pathology independency and insensitivity of each axis to inter-subject morphological variation within its region was tested. Glenoid version and inclination were calculated using the best axes from the two regions. The best glenoid axis was the normal to a least-square plane fit on the glenoid rim, directed approximately medio-laterally. The best scapular axis was the normal to a plane formed by the spine root and lateral border ridge. Glenoid inclination was 15.7° ± 5.1° superiorly and version was 4.9° ± 6.1°, retroversion. The choice of axes in the present technique makes it insensitive to pathology and scapular morphological variabilities. Its application would effectively improve inter-subject glenoid version comparison, surgical planning and design of prostheses for shoulder arthroplasty

Cystic Fibrosis In India : Report Of 30 Cases And Frequency Of Delta F508 Mutation.

Cystic fibrosis (CF) is the most common potentially lethal disorder of Caucassians. Its frequency in India is not known. We diagnosed 30 cases of CF based on sweat chloride testing. The clinical profile and frequency of delta F508 mutation was studied. The frequency of F508 mutation was 27% (16 chromosomes) which is much lower as compared to that patients in the Western world. Eight patients carried other mutations, three of them were new mutations.