Radial shaft fracture obliquity as a predictor of distal radioulnar joint instability.

We assessed whether radial shaft fracture obliquity measurements on radiographs could predict intra-operative distal radioulnar joint instability. We also clinically validated previously described predictors of distal radioulnar joint instability, which included a fracture line within 7.5 cm of the lunate fossa, radial shortening >5 mm, and ulna styloid fracture. We retrospectively analysed the radiographs of all surgically managed patients in our unit with radial shaft fractures from 2006 through 2016. The degree of obliquity was analysed on the basis of the maximum fracture-line angle in either the coronal or the sagittal plane. A radial shaft fracture obliquity >30° is predictive of distal radioulnar joint instability ( P = 0.001). Radial fracture shaft obliquity >30° was the most sensitive radiological parameter (76%) for predicting distal radioulnar joint instability. Oblique radial shaft fractures appear to be associated with increased incidence of distal radioulnar joint instability. This radiologic parameter may be used together with established parameters in predicting distal radioulnar joint instability for surgical treatment. LEVEL OF EVIDENCE: III.

Lipoprotein Subclass Profile after Progressive Energy Deficits Induced by Calorie Restriction or Exercise.

Weight loss, induced by chronic energy deficit, improves the blood lipid profile. However, the effects of an acute negative energy balance and the comparative efficacy of diet and exercise are not well-established. We determined the effects of progressive, acute energy deficits (20% or 40% of daily energy requirements) induced by a single day of calorie restriction (n = 19) or aerobic exercise (n = 13) in healthy subjects (age: 26 ± 9 years; body mass index (BMI): 21.8 ± 2.9 kg/m²). Fasting plasma concentrations of very low-, intermediate-, low-, and high-density lipoprotein (VLDL, LDL, IDL, and HDL, respectively) particles and their subclasses were determined using nuclear magnetic resonance. Total plasma triglyceride and VLDL-triglyceride concentrations decreased after calorie restriction and exercise (all p ≤ 0.025); the pattern of change was linear with an increasing energy deficit (all p < 0.03), with no evidence of plateauing. The number of circulating large and medium VLDL particles decreased after diet and exercise (all p < 0.015), with no change in small VLDL particles. The concentrations of IDL, LDL, and HDL particles, their relative distributions, and the particle sizes were not altered. Our data indicate that an acute negative energy balance induced by calorie restriction and aerobic exercise reduces triglyceride concentrations in a dose-dependent manner, by decreasing circulating large and medium VLDL particles.

The utility of using a hand clerking sheet for initial assessment of hand-related injuries.

OBJECTIVES: Our study aims to develop and evaluate the practicality, clinical merit, and usefulness of a hand clerking sheet for use in a clinical orthopedic surgical unit. We hypothesize that the cause and extent of damage to anatomical structures will be more accurately documented in concordance with intraoperative findings when evaluated with the clerking sheet. MATERIALS AND METHOD: All patients admitted to a tertiary care institute for hand-related injuries requiring acute surgical intervention within a 1-year period were evaluated. Assessments made preoperatively without the clerking sheet were evaluated retrospectively. Data concerning cause and extent of damage to anatomical structures were recorded using the hand clerking sheet for all newly admitted cases. The number of injuries documented prior to surgery and intraoperatively was compared. RESULTS: Patients who were assessed without the use of a clerking sheet had their injuries diagnosed with 61% accuracy (96/157), while patients who were assessed with the use of a clerking sheet were diagnosed with 91% accuracy (146/160). Overall, injuries evaluated with the clerking sheet were more accurate than without the aid of the clerking sheet 91% versus 61% ( p < 0.05). CONCLUSION: The high level of concurrence supports the view that patients admitted for hand-related injuries that were assessed with the aid of a hand clerking sheet or hand chart were diagnosed more accurately.