S Morteza Kazemi; Shahin Salehi; S Mohamad Qoreishi; Mehrshad Poursaeid Esfahani; Mohammad Hassbi; Jila Sharghi; Farshad Safdari
Abstract
Introduction: Hip dysplasia can be associated with early degenerative changes. Different values have been
reported for incidence of hip dysplasia in different countries. In the current study, we are reporting on the incidence
of hip dysplasia in a group of normal Iranians evaluated by measuring ...
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Introduction: Hip dysplasia can be associated with early degenerative changes. Different values have been
reported for incidence of hip dysplasia in different countries. In the current study, we are reporting on the incidence
of hip dysplasia in a group of normal Iranians evaluated by measuring the morphologic parameters of acetabulum on
radiographs.
Materials and Method: 586 hips (293 person) were enrolled in this study. On anteroposterior hip radiographs,
the following 5 parameters were measured: Central edge angle (CEA), acetabular angle (AA), acetabular depth (AD),
acetabular roof obliquity (ARO) and roof angle (RA). The normal and abnormal values were obtained in different
sexes and compared with the known normal values in orthopaedic literature. Furthermore, the correlation between
the above measurements was investigated.
Results: Based on CEA, 15 (2.6%) of hips were dysplastic:-0.7% definite and 1.9% mild. 19 hips (3.2%) were
dysplastic when using AA values. AD and RA were significantly higher in males. Except for lack of correlation
between AA and AD, the other parameters -in particular, CEA and AA- were closely correlated. CEA, AA, ARO and
RA were significantly different between dysplastic and non-dysplastic hips.
Conclusion: Definite or mild dysplasia was recognized in 0.7% and 1.9% of the “normal” population that was
studied. Since CEA was the same between males and females and was correlated with all other morphologic
parameters, it seems that CEA is a useful measurement to evaluate presence of hip dysplasia.
Hamid Reza Hosseinzadeh; Reza Zandi; Seyyed Morteza Kazemi; Seyyed Mohammad Qorashi; Sina Shahi; Farshad Safdari; Mohammad Reza Bigdeli; Siyavosh Hemmati Eslamlou; Mohammad Ali Jalili
Abstract
Background: Posterior tibial slope is the normal anteroposterior inclination of the tibia slope and plays an important role in the biomechanics of the knee and function of the cruciate ligaments. Posterior tibial slope angle varies in different populations and there is no report about its measurement ...
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Background: Posterior tibial slope is the normal anteroposterior inclination of the tibia slope and plays an important role in the biomechanics of the knee and function of the cruciate ligaments. Posterior tibial slope angle varies in different populations and there is no report about its measurement in the Iranian population. The aim of this study was to investigate the normal posterior tibial slope in a teaching hospital in Tehran-Iran. Methods: In a desreptive study, 108 knees in 70 men and 38 female patients, with no history of prior knee problem were evaluated by lateral knee rodiographs in a teaching hospital in Tehran-Iran. The average age in these cases was 38 years (23-60 years). These patients had refered because of recent knee trauma, but no fracture or intra-articular derangement had been found. The angle of tibial slope was measured in all the cases and analyzed. Results: The mean slope angle was 9.4±1.8 degrees. There was no statistical relationship between age and gender and posterior tibial slope (p≥.05). Conclusion: The normal posterior tibial slope angle in this Iranian population was different from other countries. It may be necessary to consider these differences in designing tibial and femoral components for knee arthroplasty.
Seyyed Morteza Kazemi, MD; Seyed Mehdi Hosseini Khameneh, MD; Siavash Hemati Islamloo, MD; Ramin Farhang Zanganeh, MD; Mohammad Reza Bigdeli, MD; Seyyed Mohammad Ghoreishi, MD
Abstract
Background: Prior to 1980 decade, surgical ideas and facts were mainly based on the individual surgeon’s experience and the collective judgment of groups of surgeons. In the 1980’s the concept of “Evidence Based Medicine” became popular suggesting that all surgical practices must be based on ...
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Background: Prior to 1980 decade, surgical ideas and facts were mainly based on the individual surgeon’s experience and the collective judgment of groups of surgeons. In the 1980’s the concept of “Evidence Based Medicine” became popular suggesting that all surgical practices must be based on evidence and not experience. According to the widespread publication of medical articles nowadays, the question often arises about the dependability and strength of the evidence. We are reporting the level of evidence (LOE) of articles published in the Journal of the Iranian Orthopaedic Association between 1995 and 2008. Methods: All the articles published in the Iranian Journal of Orthopaedic Surgery (1995-2008) were studied separately by 5 groups of physicians. The level of evidence rating system was based on the Journal of Bone and Joint Surgery, which classifies articles into therapeutic, prognostic, diagnostic and economic subgroups. The articles are subsequently divided into five levels in accordance with the defined levels of evidence.Results: Over half of the articles (54%) were therapeutic, 9% diagnostic, 35% prognostic and 2% economic. Overall 2% were placed as level I, 8% level II, 5% level III, 84% level IV and 1% level V.Conclusion: Therapeutic and prognostic articles and evidence level IV were the most common types observable in the articles published in the Iranian Journal of Orthopaedic Surgery. Furthermore, level I to III articles in this journal had increased over 3.5 times between 1995 and 2008.
