Lee SM, Seo JS, Kwak SH, et al. - Via performing a retrospectively evaluation of 43 consecutive cases of unilateral displaced intra-articular calcaneal fractures (DIACF), researchers examined if bone density associates with radiologic and clinical outcomes after screw fixation of displaced DIACF with the sinus tarsi approach. Preoperative, postoperative, and last follow-up calcaneal lateral and axial radiographs were used in radiologic evaluations. All patients underwent preoperative CT scanning of both injured and uninjured calcaneus at one scanning and had dual x-ray absorptiometry (DXA) scans. By placing an elliptical region of interest confined to the cancellous region of the uninjured calcaneus, they performed measurement of Hounsfield unit (HU) values. At a minimum of 12 months postoperatively, they assessed clinical outcomes using Foot and Ankle Outcome Scores (FAOS). Analysis suggested a significant correlation of decreased preoperative bone density with decreased Böhler's angle, widening of calcaneal width, and inferior short-term clinical outcomes after screw fixation of DIACF. By determining bone density using HU value in area where DXA cannot be conducted, such foot bones, ascertaining if different fixation strategies or systemic therapies can be tailored to bone density could allow optimization of clinical outcomes.