There's been an epidemic of vitamin D deficiency over the last few decades because we've been avoiding the sun, Volgman says. Other reasons include having a milk allergy, following a strict vegetarian meal plan, and having darker skin (the pigment melanin reduces the skin's ability to make vitamin D from sunlight).
Sacral fractures - Denis classification. Zone 1: Region of the ala. Zone 2: Region of the sacral foramina. Zone 3: Region of central sacral canal. Provide an explanation for key principles and pertinent aspects of the classification. Provide the citation for the landmark article and recent review articles describing the classification.
Of the type-I fractures, 36 were at the. base of the process and 17 involved the upper quarter or third. of the glenoid. The type-II fractures were at the tip of the. process or at the insertion of the tendon of pectoralis minor. Acromioclavicular dislocation was the most common. associated lesion, seen in 60 of the 67 patients (Table I). Lacerations or abrasions over the posterolateral or lateral. deltoid were seen in 15 patients.