Medical Journal of The Islamic Republic of Iran (MJIRI)

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The normal carrying angle in Shiraz population was measured on the basis of sex and age. The right elbow angle of 4266 cases was examined from birth to 30 years old. This study found the carrying angle in 2540 females to be 7.20 (range 2-19) and in 1726 males to be 6.40 (range 2-11), a 0.80 difference. A significant difference (p= 0.05) was found in relation to age. There is a gradual increase in the carrying angle with skeletal maturation.

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Background: Chondromalacia patella is the most common cause of mechanical knee pain in young women. Q angle and knee alignment are important clinical parameters for biomechanics of the patellofemoral joint. Objective: To identify the prevalence of knee malalignment and to find out if there is a correlation between knee mal alignment and Q angle with age at onset of disease. Methods: All patients under 40 years old complaining of mechanical knee pain with positive shrug sign and normal knee radiography who were referred to Amir A'lam Rheumatology Clinic during the period of September 2000 to September 2002 were included in this study. The patients were examined by a rheumatologist for measuring Q angle and detection of knee malalignment. Age at onset of disease was defined as initiation of knee pain according to the patient's history. Results: The cases were 260 with 189 females. Prevalence of knee mal alignment was 32.4%. The mean age at onset of disease was 22.8 ± 7.08 years. The mean age at onset in patients with knee mal alignment (21.41 ± 5.66 years) was significantly lower than the mean age at onset in those without knee malalignment (23.6 ± 7.43 years) (p= 0.002). There was a positive correlation between Q angle and age at onset of disease (r=0.17,p= 0.006). Conclusion: It seems reasonable to identify knee malalignment in chondromalacia patella patients and perform proper management to postpone progression of disease. There are many other factors that influence age at onset of disease, so further investigation is recommended.

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  Abstract

  Background: The purpose of this study was to evaluate the significance of the Q

  angle with respect to the patella position. We assess the correlation between the Q angles (calculated by clinical exam) in different positions and CT indices (with more

  impression on TTTG).

  Method: Atotal number of 68 knee joints of 50 cases entered the study. Clinical

  examination was used to measure Q angle (in 3 positions of sitting, standing and

  supine). CT scan performed in 2 axial view of proximal tibia, and distal femor for

  measurement of Tibial tuberosity-trochlear groove distance (TTTG) and other CT

  indices. Correlation between main variables calculated.and analysed with spss.

  Results: Supine Q angle were strongly correlated with standing Q angles and

  moderately with sitting Q angle. Sitting Q angle was moderately correlated with

  supine and standing Q angle and weakly with PTA. we found no other significant correlation between Q angle and CT indexes.

  Discussion: Our findings suggest that Q angle is not a valuable index for predicting

  the presence of patelofemoral malalignment.

 

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  Medulloblastoma is quite uncommon in the adult population and even rarer in extra-axial site in cerebello-

  pontine (CP) angle. In this report, a 23-year-old male patient with a two month history of deafness, nausea, vomiting and ataxia is presented. Clinical and radiological findings demonstrated a heterogeneously enhanced extra-axial lesion in the right CP angle. Total excision was performed and the histopathological features of medulloblastoma were confirmed. After surgery, the patient had no neurological deficit and the audiometric findings were improved. In addition, he underwent adjuant radiotherapy and no sign of metastatic mass was observed in follow-up spinal cord MRI. Although extremely rare, medulloblastoma must be considered in the differential diagnosis of extra-axial CP angle lesions.

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Background: X- ray images provide accurate and reliable data in different foot pathologies. However, the accompanied complications will limit its use for epidemiological studies and research purposes, especially in children.  Therefore, simple, accessible, and cost- effective methods such as footprint, with a good correlation with x-ray images, are needed to help diagnose different foot pathologies. In the present study, the accuracy of footprint technique in assessing hallux valgus angle (HVA) was evaluated based on x-ray images through measuring the angle between the medial border protrusion of the foot and the hallux.
   Methods: In this cross-sectional study, 42 participants with symptomatic hallux valgus were recruited. HVA was measured by both x-ray imaging and footprint. The differences between the two approaches were identified by applying correlation-coefficient test and reliability, which was assessed using interclass correlation (ICC).
   Results: A significant correlation was found between the HVA measured by x-ray and HVA by footprints (p< 0.001), and the ICC was upper than 90%.
   Conclusion: Foot print is a reliable method for measuring HVA, as it was highly correlated with the HVAs obtained by x-ray imaging. 
 

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Background: The kidneys of patients with chronic kidney disease (CKD) do not function well enough and those in end-stage renal disease (ESRD) of CKD need hemodialysis (HD) as a common renal replacement therapy (RRT) procedure. HD requires a vascular access (VA), and arteriovenous fistula (AVF) is the common VA choice in the world due to its very few complications. Despite the widespread use of AVFs, some risk factors maximize AVF failure, which is accompanied by complications of the patient such as repeating VA surgeries and hospitalization. Therefore, finding effective factors in the success of surgery is highly important and, thus, this study aimed at measuring the effect of anastomosis angle on the success of AVF surgery.
   Methods: This study evaluated the effect of conducted angle in an AVF anastomosis on AVF maturation. The images of 48 created AVFs for CKD patients was provided over a one-year period (from May 2016 to April 2017). Cross-tab analysis was used, and significance level was considered meaningful at p-value≤0.001. A centralized database was designed to integrate data. A method for image processing was developed and geometrical characteristics of the vessels (such as anastomosis angle) and also the diameter of artery and vein were measured via AutoCAD 2017 software and exported to the database along with other data.
   Results: The rate of the AVF failure in the studied patients was 8.96%. The anastomosis angle ≤ 30° is preferable from the AVF status point of view because most AVF maturation (or least AVF failure) rates are detected at this range.
   Conclusion: This study was performed based on a new approach without the need to measure hemodynamic parameters. Moreover, it signified the important role of anastomosis angle in the function of AVF, showing that the anastomosis angle ≤ 30° is a preferable intraoperative recommendation for AVF surgery.