The results of biplanar distal femoral osteotomy; a case series study

Background: Distal femur wedge osteotomies for varus or valgus alignment of the lower extremity could be done in either uniplanar or biplanar fashion. Union time and stability of the osteotomy site has been considered important in this anatomic region. In this study, clinical and radiographic findings of biplane distal femur osteotomy were reported. Methods: Clinical, functional, and radiological findings of eight patients (10 knees) underwent biplane distal femur osteotomy were evaluated. Visual analogue score (VAS) and Lysholm-Tegner knee score were used for the assessment of pain and function before and three months after surgery. Results: In this study, eight patients were included. All patients were female. The mean age was 28±6.3. The mean pre-operative mechanical angle was 8.7±2.2° and the post-operative angle was 1.4±0.53° in patients with valgus alignment whileit was 7.0±1.0°preoperatively and 0.66±1.2° postoperatively in patients with varus alignment. The mean lateral distal femoral angle (LDFA) was 85±8.0° before surgery and was 88±1.3° after surgery. According to Lysholm-Tegner knee score, in the post-operative visit, six knees were good and four were excellent. The mean union time was 9.2±2.3 weeks. Conclusions: Biplane distal femur osteotomy is a reliable technique that creates larger surfaces and more stability at the osteotomy site with further rapid union. © 2015 BY THE ARCHIVES OF BONE AND JOINT SURGERY

Phenotypic and genotypic evaluation of fluoroquinolone resistance in clinical isolates of Staphylococcus aureus in Tehran

Background: Fluoroquinolones are broad-spectrum antibiotics widely used in the treatment of bacterial infections such as Staphylococcus aureus isolates. Resistance to these antibiotics is increasing. Material/Methods: The occurrence of mutations in the grlA and gyrA loci were evaluated in 69 fluoroquinolone-resistant S. aureus isolates from 2 teaching hospitals of Tehran University of Medical Sciences. Results: Out of the 165 S. aureus isolates, 87 (52.7) were resistant to methicillin and 69 (41.8) were resistant to fluoroquinolone. Fluoroquinolone-resistant S. atoms isolates had a mutation at codon 80 in the grlA gene and different mutational combinations in the gyrA gene. These mutational combinations included 45 isolates at codons 84 and 86,23 isolates at codons 84,86 and 106 and 1 isolate at codons 84, 86 and 90. Fluoroquinolone-resistant S. aureus isolates were clustered into 33 PFGE types. Conclusions: The findings of this study show that the fluoroquinolone-resistant S. aureus strains isolated in the teaching hospitals in Tehran had multiple mutations in the QRDRs region of both grlA and gyrA genes

Surgical treatment of chronic patellar tendon rupture: A case series study

Background: Early detection and treatment of extensor mechanism rupture are essential for a long-term functional knee joint. In chronic cases, quadriceps muscle retraction and contracture make surgery di cult and results are less predictable. Objectives: The purpose of this study was to evaluate outcomes in the cases of late repaired patellar tendon rupture. Methods: This study included patients with chronic patellar tendon rupture who were operated at Shafa orthopedic hospital from 2006 to 2013. Results: A total of ten patients were evaluated, wirh 12 cases of chronic patellar tendon rupture. Patients had a mean age of 34.4 years (range 18 - 58). Seven cases were caused by a traffic accident and three by a fall. The mean length of time from injury to surgery was 23 months (range 3 - 132). The mean time of follow-up was 6.2 years (range 3 - 9). Cerclage wire reinforcements were applied in nine of the knees and three knees had fiber wire reinforcement. Tendon graft augmentation was applied in ten of the knees; six with semitendinosus and gracilis autograft, two with semitendinosus autograft, one with an Achilles tendon allograft, and one with a tibialis anterior allograft. Means for preoperative/postoperative active knee range of motion, extension lag, subjective international knee documentation committee score, and modified Cincinnati scores were 81/117, 32/2, 22.7/84.5 and 24/87, respectively. Wire breakage was seen on all nine knees but wires were removed in only two symptomatic cases. Conclusions: Good to excellent results were obtained in terms of functioning with operative treatment of chronic patellar tendon rupture. Direct repair with autogenous or allogenic graft augmentation and cerclage wire reinforcement and postoperative cast immobilization are recommended. Copyright © 2018, Trauma Monthly

Anterior cruciate ligament reconstruction with hamstring tendons has no deleterious effect on hip extension strength

Background: Hamstring tendons are secondary hip extensors. Their harvest for graft in anterior cruciate ligament (ACL) reconstruction may create deleterious effect on hip extension strength. This is of particular importance in sports that need powerful hip extension force like climbing and sprinting. Due to scarcity of a comprehensive study in this area, we designed this prospective study to evaluate hip extension strength following ACL reconstruction using different types of grafts. Methods: Fifty eight patients were enrolled in this prospective non-randomized case control study to compare isokinetic hip extension strength following ACL reconstruction with different graft types. Twenty patients in group A (both Semitendinosus and Gracilis tendons autograft (ST-G)), 14 patients in group B (Tibialis Posterior tendon allograft (Allograft)), 12 patients in group C (bone-patellar tendon-bone autograft (BPTB)) and 12 patients in group D (only semitendinosus autograft (ST)) were studied. Hip extension strength was tested post-operatively at three- and six-month periods using a Biodex isokinetic testing machine at a speed of 30 degree per second in operated (cases) and non-operated (controls) limbs. Results: There was a significant increase in hip extension force between three and six month intervals in all four groups and in both operated (case) and non-operated (control) limbs (P<0.05, 95 CI). However, there was more increase in case limbs in comparison to control limbs. There was no significant difference in hip extension strength among all four groups (both in case and control limbs) in the third- and the sixth-month post-operative tests. Conclusion: Graft type had no effect on hip extension strength following ACL reconstruction, and the harvest of one or both hamstrings had no deleterious effect on hip extension force. COPYRIGHT 2019 © BY THE ARCHIVES OF BONE AND JOINT SURGERY

Surgical management of tibial plateau fractures with 3.5mmsimple plates

Background: Tibial plateau fractures can be successfully fixed utilizing 3.5mmlocking plates. However, there are some disadvantages to using these plates. Objectives: In the current prospective study, we investigated the outcome of treating different types of tibial plateau fractures with 3.5mmsimple plates which, to our knowledge, has not been evaluated in previous studies. Materials and Methods: Between 2011 and 2013, 32 patients aged 40-0.2 years underwent open reduction and internal fixation for tibial plateau fractures with 3.5mmsimple plates. The patients were followed for 16.14-2.1 months. At each patient's final visit, the articular surface depression, medial proximal tibial angle, and slope angle were measured and compared with measurements taken early after the operation. The functional outcomes were measured with the WOMAC and Lysholm knee scores. Results: The mean union time was 13-1.2 weeks. The mean knee range of motion was 116.8-3.3. The meanWOMACand Lysholm scores were 83.5-1.8 and 76.8-1.6, respectively. On the early postoperative and final X-rays, 87.5 and 84 of patients, respectively, had acceptable reduction. Medial proximal tibial and slope angles did not change significantly by the last visit. No patient was found to have complications related to the type of plate. Conclusions: In this case series study, the fixation of different types of tibial plateau fractures with 3.5mmsimple non-locking and non-precontoured plates was associated with acceptable clinical, functional, and radiographic outcomes. Based on the advantages and costs of these plates, the authors recommend using 3.5mmsimple plates for different types of tibial plateau fractures. Copyright © 2016, Trauma Monthly

Correction to: Isolated Human and Livestock Echinococcus granulosus Genotypes Using Real-Time PCR of cox1 Gene in Northeast Iran (Acta Parasitologica, (2019), 64, 3, (679-685), 10.2478/s11686-019-00117-w)

Unfortunately, the affiliation of Majid Fasihi-Harandi needs to be edited. The correct affiliation is Research Center for Hydatid Disease in Iran, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran

Iranian joint registry (iranian national hip and knee arthroplasty registry)

Periodic evaluation and monitoring the health and economic outcome of joint replacement surgery is a common and popular process under the territory of joint registries in many countries. In this article we introduce the methodology used for the foundation of the National Iranian Joint Registry (IJR) with a joint collaboration of the Social Security Organization (SSO) and academic research departments considering the requirements of the Iran's Ministry of Health and Education. ©BY THE ARCHIVES OF BONE AND JOINT SURGERY

Iranian joint registry (iranian national hip and knee arthroplasty registry)

Periodic evaluation and monitoring the health and economic outcome of joint replacement surgery is a common and popular process under the territory of joint registries in many countries. In this article we introduce the methodology used for the foundation of the National Iranian Joint Registry (IJR) with a joint collaboration of the Social Security Organization (SSO) and academic research departments considering the requirements of the Iran's Ministry of Health and Education. ©BY THE ARCHIVES OF BONE AND JOINT SURGERY

Using Data Mining Techniques to Develop Knowledge Management in Organizations: A Review

Nowadays, according to the growth of information and communication technology in society as well as the development of technologies related to data, information and knowledge, many organizations consider the importance of knowledge and ways of its acquisition, production, storage and transfer to create competitive advantage, success, and organizational survival. Measuring the position of organizational knowledge in the value chain of strategy-focused organizations is carried out through knowledge management process. This process involves the use of data and converting them into knowledge. Thus, tools such as data mining techniques are used to extract knowledge from databases. Therefore, data mining is used as a tool for the development of knowledge. Data mining is also one of the efficient tools to analyze and explore massive amounts of data in application areas. Since the current research is along with previous researches and in the same direction with its conclusion, they are generally based on library studies and questionnaire-based survey, therefore this study investigates the use of data mining techniques to develop knowledge management in organizations using library studies and review articles related to the topic. In addition, this study describes the knowledge management process and the use of data mining for the development of organizational knowledge