Tehran University Medical Journal

Background: Recently, the surgical methods are used in patients with anterior cruciate ligament rupture and have been associated with successful results. There are different results in the term of using of the surgical methods for anterior cruciate ligament that often is associated with some complications such as infection, static laxity, remaining the pain, need to recurrence surgery, and limitation in the range of motion. Therefore, in this study, we aimed to compare outcomes of anterior cruciate ligament reconstruction with the fixed loop and the adjustable loop.
Methods: This cross-sectional study was done on 60 patients undergoing anterior cruciate ligament reconstruction referred to Kashani Hospital of Isfahan, Iran, from March 2017 to February 2019. Also, this study was approved in the Isfahan University of Medical Sciences, Isfahan, Iran. 30 patients were assigned to a fixed loop and 30 patients under the adjustable loop method. Postoperative outcomes were compared with the fixed loop group and the adjustable loop group.
Results: The frequency of static laxity below 8 mm in the fixed loop group was 83.3% and the frequency of static laxity below 8 mm in the adjustable loop was 76.7%. There was no significant difference between the fixed loop group and the adjustable loop group based on static laxity. Also, no infection was seen in the fixed loop group and the adjustable loop group. There was no significant difference between the fixed loop group and the adjustable loop group in terms of range of motion and knee score before and after surgery. After surgery, 96.7% of the fixed loop group and 86.7% of the adjustable loop group returned to normal activity. There was no significant difference between the fixed loop group and the adjustable loop group in terms of return to normal activity and satisfaction.
Conclusion: Using the fixed loop is effective, useful, and with low-complication for the patients with anterior cruciate ligament and also using the adjustable loop grafts is effective, useful, and with low-complication for the patients with the anterior cruciate ligament rupture.

Background: Nausea and vomiting is one of the most common complications after the strabismus surgery. In this study, we evaluated the efficacy of atropine versus ondansetron administration on the incidence of postoperative nausea and vomiting and duration of recovery stay in patients undergoing this procedure.
Methods: In this case-control study, 90 patients between 3 to 30 years old who were candidates for elective strabismus surgery in Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran, from February to April 2019, were randomly divided into three groups (placebo, ondansetron and atropine group). Patients who had taken hypnotic drugs while entering the operating room were excluded. In all patients, after arriving into the operating room and installation of standard monitoring equipment and peripheral vein implantation, anesthesia was induced by receiving 0.05 mg/kg midazolam, fentanyl 1 μg/kg and propofol 2.5 mg/kg. After induction of anesthesia, placebo group was compared with ondansetron group and atropine group that received 0.1 mg/kg ondansetron and 30 µg/kg atropine, respectively. The rate of postoperative nausea and vomiting, duration of recovery stay and satisfaction of recovery nurses were recorded and compared between groups.
Results: There was no statistically significant difference between the three groups in terms of mean age, weight, and gender. It seems that group matching is appropriate and there are no confounding factors for demographic variables. Administration of atropine and ondansetron significantly reduces the incidence of nausea and vomiting postoperatively and in recovery. There was no significant difference in the incidence of nausea and vomiting between the atropine and ondansetron groups. Duration of recovery stay was decreased after ondansetron and atropine administration versus control group. Postoperative laryngospasm and bronchospasm were not observed in any of the three groups after surgery and at the time of recovery. The satisfaction of recovery nurses in both atropine and ondansetron groups were higher than control group.
Conclusion: It seems that the administration of atropine as much as ondansetron can be effective in reducing the incidence of postoperative nausea and vomiting and the length of recovery stay in patients who undergoing strabismus surgery.

Background: Cervix insufficiency is diagnosed based on a previous history of pregnancy loss in the second trimester, followed by painless cervical dilatation or premature rupture of the fetal membranes. Abnormal cervical tissue structural appears to be the cause of this complication. There are no diagnostic methods for cervical insufficiency before pregnancy, but magnetic resonance imaging (MRI), hysterosalpingography, and ultrasound can detect uterine anomalies that are risk factors for cervical insufficiency. Cerclage is known as a common procedure for prevention of the preterm labor, caused by cervix insufficiency. This study aimed to evaluate the prevalence of cerclage and it’s complications and prognosis based on the patient’s age, history of cervical insufficiency, history of preterm labor, history of miscarriage, curettage, and cervical and vaginal abnormalities.
Methods: A retrospective cohort study was conducted, including 65 patients, from March 2012 to March 2018, in Valiasr Hospital, Tehran, Iran. Data including the age, history of cervical insufficiency, history of abortion, history of cervix surgery and curettage, gestational age, presence of vaginal and cervical anomaly as well as complications such as bleeding and severe cervical pain and prognosis of cerclage were extracted.
Results: In our study, 65 women who undergone cerclage were evaluated, the mean age of the participants was 28.4 years. Abortion was present in 27.7% of cases, 16.9% once, 7.7% twice and 3.1% three times. In 21.5% of cases, there was a history of curettage and 66.2% had a history of preterm labor. For 4.6% of the subjects, the length of cervix was under 10 mm. Gestational age at the end of cerclage was under 26 weeks in 5.8% of patients. The termination of pregnancy was higher in patients with lower gravida, and the termination of pregnancy was significantly higher in those who were not curetted (P= 0.001). There were no complications, and the prognosis is considered good, in case the termination is above 32 weeks. The birth weight mean was 3041.5 grams. According to our study, the failure of the cerclage is associated with previous history of dilation and curettage (D&C) and higher gravidity.
Conclusion: Putting all the results together, 80% of the cerclage, performed in our institution were successful, without any complications.

Background: One of the most significant factors in the success of dental implant procedures, can be mentioned by the quality and quantity of jaw bone. The occurrence of some problems such as trauma, infection, pathological lesions and the long-term absence of teeth in patients, it causes irregularities in the jaw bone and can get bone resorption. Sever defects after trauma or tumor resection needs bone reconstruction. Sticky bone is a new biological agent that provides stabilization of bone graft in the defect, and therefore, ameliorates tissue repairing and decreases bone loss during healing period. In this study, the evaluation of sticky bone performance to reconstruction of defects in two patients jaw's bone was considered.
Case Presentation: Two patients (1 male, 1 female) with an average age of 50 years underwent surgery, due to the history of tooth extraction. They had resorption of jaw bone for implant surgery. The teeth were 11 and 37. This study was performed in Al-Mortaza's Clinic, Qom province, Iran, from May 2016 to January 2017. 10 ml of blood were taken individually and centrifuged at 1300 revolutions per minute (rpm) for 8 minutes to separate the platelet-rich fibrin. Then, platelet-rich fibrin was combined with allogeneic bone to form sticky bone. Sticky bone prepared during implant surgery, with implant inside the patient's jaw bone was used.
Conclusion: The use of sticky bone to stimulate and induce bone resorption in toothless area was associated with increased implant's success. Sticky bone due to multiple growth factors, such as TGF-β1 and VEGF, usability is an appropriate and efficiency method for stimulation of bone resorption.

Background: Surgical margin determination in malignant lesions is essential and has a direct impact on the choice of postoperative treatments and patient follow-up. Therefore, the processes affecting this variable are worth exploring. This study aimed to evaluate the difference in surgical margin values in excisional skin samples during surgery and after formalin fixation.
Methods: A cross-sectional study was performed on forty randomly selected patients with benign and malignant skin lesions who were referred to the plastic surgery ward of Ghaem Hospital in Mashhad from November 2018 to January 2019. Malignant and benign skin lesions were excised with a healthy margin, then the specimens were sent to the pathologist in a formalin-containing container. The amount of tissue shrinkage and the factors affecting them were compared.

Background: The training and education of competent and qualified surgeons have been one of the challenges of the surgical profession. The concept of surgical competence has been affected widely due to a series of developments in the new disease emergence, various surgical techniques and the introduction of advanced tools and equipment into the operating. The development of surgical competence and achieving this goal requires accurate identification and analysis of the dimensions of competence. This study was done to explain the concept of surgical competence using the 8-step Walker and Avant approach.
Methods: This study is a qualitative study that was conducted from May- October 2016 at Shahid Beheshti University of Medical Sciences. The present study is a qualitative and conceptual analysis study, which is done with Walker&Avant's eight-step approach to determine the defining characteristics of the concept of surgical competence. A systematic search was conducted between 1990 and 2020 by keywords search such as surgery, surgical, operation OR laparoscopy AND competence competency development competency proficient, proficiency, expertise, clinical, in the database like Google Scholar, PubMed, SID, Magiran, Scopus, Web of Science. Twenty articles were included in the study based on inclusion and exclusion criteria. Moreover, the defining features of the concept were extracted from it.

Results: Based on the results of this study, the concept of surgical competence was defined and the four dimensions of elements, goals, components and the process of developing surgical competence were identified. Then, by clarifying the characteristics of surgical competence, a model of surgical competence development was drawn. Surgical competence development depends on the acquisition of specialized knowledge and numerous skills that are acquired through experience and deliberated practice under the supervision of others in the surgical community of practice and over time. Conclusion: Surgical competence is a set of observable and measurable skills that allows a surgeon to manage the surgical process independently pbt while maintaining the patient's safety. It includes specialized knowledge, communication skills, cognitive and technical skills, and basic surgical skills.

Results: Then bacterial colonies were counted, contamination reduction was measured, and the shelf life of the solution was determined according to the standards.  Results showed that a 60-to-90-second scrub with an alcohol-based disinfectant is the best way to reduce hand contamination and, thereby, nosocomial infections. Conclusion: Based on the study findings, alcohol-based solutions can be recommended for surgical scrubs, according to WHO guidelines.

Background: Benign tumors of the gastrointestinal tract with a muscular origin are typically found in the esophagus, stomach, or small intestine, and rarely in the large intestine. Approximately 3% of all gastrointestinal leiomyomas occur in the large intestine, primarily in the descending colon and sigmoid colon. These lesions are usually asymptomatic and are often discovered during endoscopic procedures.
Case Presentation: A 38-year-old female patient admitted to the emergency department of Imam Ali Hospital in Bojnurd city in January 2024, reporting vague and nonspecific lower abdominal pain, abdominal distension, nausea, vomiting, low appetite and signs of partial gastrointestinal obstruction over the past week that don’t have any history of weight loss, gastrointestinal bleeding, constipation or family history of cancer. Her symptoms had not responded to Over-the-counter (OTC) medicines and outpatient treatment. Given the nonspecific manifestations, a CT scan of the abdomen and pelvis with iv contrast was requested for further evaluation of inta abdominal disease. The CT findings indicated a 5.5 cm lesion at the beginning of the large intestine, which exerted pressure on the distal part of small intestine, leading to evidence of partial obstruction of the distal part of small intestin. The patient was diagnosed with small bowel obstruction due to an ascending colon tumor and was scheduled for surgical intervention. She underwent resection of right colon, 10-15 cm of terminal ileum along with drainage of the regional lymph nodes. The excised tissue sample was sent for histopathological examination, which suggested a benign colon tumor likely to be a leiomyoma. To facilitate a more accurate diagnosis, immunohistochemical analysis was recommended, which confirmed the diagnosis of leiomyoma.
Conclusion: Colonic leiomyomas can present with various symptoms depending on their size and location. Due to the difficulty in differentiating leiomyomas from malignant colonic tumors, particularly when they are larger, surgical intervention is often recommended. This case highlights the importance of early diagnosis and appropriate management strategies for these tumors to prevent potential complications.

Background: Introduction & Objective: Reductive mammoplasty, which is performed for medical or cosmetic reasons, can be carried out with different techniques. In this study, we compare the results obtained from vertical mammoplasty surgery with reverse T method and purse method in patients.
Methods: In this retrospective cross-sectional study, we examined sample consisted of 58 patients referred to the 15- KORDAD educational center in Tehran for reductive mammoplasty surgery. In all patients, the scar length was 12 cm and the resected was 300 g. Patients were followed up in the first week, 1 and 3 months after surgery, and conducted photographism was assessed based on Vancouver and patient and observer scar assessment scal (POSAS) criterion .The duration of wound restoration and the presence of redness and discharge (secretion) complications or long-term itching were assessed.
Results: The obtained results showed that age, body mass index and resection weight did not have statistically significant difference between the reverse T incision groups and the purse method. However, the duration of surgery (minute) in reverse T group was longer than the purse method, which was statistically significant. Postoperative scars rate using POSAS criterion were not significantly different between the two groups in terms of redness, discharge and itching complications. Postoperative scar rate using Vancouver criterion were not significantly different in terms of hyper and hypopigmentation, vascularity and high and medium scale satisfaction, but in terms of Pliability and wound height were higher in the purse group and were significantly different. Complications of seroma, nipple areola necrosis and anesthesia in nipple areola and infection and hematoma were not significantly different in both groups.
Conclusion: Reverse T-mammoplasty had a longer operation time, but satisfaction was higher in this method, but only in a good scale. The Pliability and height of the wound were higher in the purse group.

Background: Adenoid cystic carcinoma (ACC) is a rare neoplasm of the major salivary glands, characterized by a slow-growing tumor, wide local infiltration, perineural spread, a propensity to local recurrence and distant metastasis, and has a poor prognosis. Although surgery and radiotherapy are considered standard treatments, the role of systemic therapy in advanced and metastatic stages remains unclear and rarely results in complete remission. Due to the rarity and limited number of reported cases, here, we report a complete response with systemic treatment in a case of metastatic ACC of the salivary gland.
Case Presentation: The patient is a 50-year-old woman with a history of ACC of the submandibular salivary gland at 20 years old. No recurrence of the disease was observed until, at 47 years old, when metastatic adenocarcinoma with salivary gland origin was diagnosed. From the age of 47 to 50 years, multiple cervical lymph node involvement, multiple masses in the parotid gland and thyroid tissue, as well as distant metastasis to the breast, ovary, and lungs were observed. The patient underwent cervical lymphadenectomy, total parotidectomy, and several courses of radiotherapy and chemotherapy. After six cycles of the Bevacizumab + Adriamycin + Cisplatin regimen, radiologic evaluation confirmed a complete response to the treatment with the disappearance of pulmonary nodules and parotid lesions. The patient is currently under follow-up.
Conclusion: Our reported case shows the aggressive nature of recurrent metastatic ACC of the salivary gland and the positive effect and importance of systemic treatment in these patients. Because the metastasis can appear very slowly, early diagnosis is essential for a better prognosis. These rare malignant lesions should be followed up for a long time after initial treatment due to slow growth, frequent recurrence and late and distant metastasis possibility. This case highlights the potential of systemic therapy to induce complete response even in extensively metastatic disease, suggesting that further clinical trials may be warranted.

Background: Neonatal circumcision is one of the most common surgical procedures worldwide, performed for cultural, religious, and health-related reasons. The two primary methods for neonatal circumcision are the classic surgical method (using sutures or clamps such as Gomco or Mogen) and the plastic ring method (e.g., Plastibell). This systematic review and meta-analysis aimed to compare the benefits and complications of these two methods in neonates.
Methods: A systematic search was conducted in PubMed, Scopus, Web of Science, and Google Scholar databases for articles published between 2000 and 2024. Inclusion and exclusion criteria: Included studies included randomized controlled trials (RCTs), cohort studies, and cross-sectional studies that compared the benefits and harms of classical surgery and plastic ring in infants (<28 days). Studies without a comparison group, studies conducted in older children or adults, and articles that did not provide sufficient data were excluded. Keywords included "neonatal circumcision", "plastic ring", "Plastibell", "classical surgery", "Gomco clamp", "Mogen clamp", "benefits", "complications" and their English equivalents.
 Studies comparing the benefits and complications of the classic surgical method and the plastic ring method in neonates were included. Data were meta-analyzed using a random-effects model, and risk ratios (RR) with 95% confidence intervals (CI) were calculated. 
Results: From a total of 12 included studies (involving 5,342 neonates), the plastic ring method was associated with a significant reduction in bleeding (RR: 0.45; 95% CI: 0.32-0.64) and healing time (mean difference: -2.3 days; 95% CI: -3.1 to -1.5) compared to the classic surgical method. However, the risk of skin adhesion was higher with the plastic ring method (RR: 1.32; 95% CI: 1.05-1.66). Serious complications, such as urethral injury, were rare in both methods (less than 0.2%). 
Conclusion: The plastic ring method is a suitable option for neonatal circumcision due to its ease of use, reduced bleeding, and faster healing time. However, careful post-procedural care is essential to minimize the risk of skin adhesion. The choice of method should consider the operator’s expertise and parental preferences.