Browsing by Author "Begović, Ninoslav (56384384100)"

Introduction. Ectopic cervical thymus (ECT) occurs as a result of incomplete migration of the thymic primordia during embryogenesis. In the majority of cases, ECT is asymptomatic; however, in 10% of patients, there are different kinds of symptoms. Case report. A four-month-old baby boy was referred to our clinic for an evaluation of a growing large mass on the right side of the neck, present since birth. Physical examination revealed a solid, painless, soft, moderately mobile mass of irregular round shape localized on the right side of the neck, in front of the sternocleidomastoid muscle, below the parotid gland, and above the carotid lodge. The skin above the mass was unchanged. The dimensions of the mass were 40 × 32 × 15 mm. Based on the clinical and ultrasonographic findings, as well as the findings of the magnetic resonance imaging, it was suspected that the mass was an ECT. The mass was removed by surgical excision. The pathohistology report confirmed the presence of an ECT, with Hassall’s corpuscles in the medulla. The postoperative course went smoothly, and the wound healed well. During the regular clinical, immunological, and ultrasound follow-ups over a period of six months, normal findings were registered. Conclusion. Congenital ECT is a rare congenital anomaly that must be, however, taken into account when considering the differential diagnosis of cervical tumor masses. © 2023 Inst. Sci. inf., Univ. Defence in Belgrade. All rights reserved.

Background/Aim. The key to successful anterior cruciate ligament reconstruction lies in the proper positioning of the femoral tunnel within the anatomical footprint and in pro-viding for an adequate length of this tunnel without perfora-tion to the lateral cortex. The aim of this study was to de-termine the change in the length of the femoral tunnel drilled during anatomic anterior cruciate ligament (ACL) re-construction, depending on: the position of the limb being operated on, the degree of knee flexion, as well as the angle between the drill and the medial aspect of the lateral con-dyle. Methods. This study was performed on 16 cadaveric knees (6 male and 10 female) of the average age of 83. After the subcutaneous tissue was dissected, the femoral insertion of the ACL was identified. Then, 18 tunnels were drilled through the center of the femoral insertion with the help of 2 mm thick Kirschner wires. This was performed in two stages. In the first phase the leg was positioned on an ar-throscopic leg holder, while in the second phase the leg was positioned on the table. In each phase the knee was placed in three different flexion positions (110°, 120° and 130°) and for each position three tunnels were drilled (70°, 60° and 50°) in relation to the medial aspect of the lateral con-dyle. Results. The average length of the femoral tunnel drilled with the leg positioned on the operating table (36.6 ± 4.7 mm) was highly statistically significantly greater (p = 0.000) in comparison with the length of the femoral tunnel obtained by positioning the leg on a fixed arthro-scopic leg holder (35.4±4.3 mm). The greatest lengths of the femoral tunnel were obtain with the leg flexed at 130º and the reamer positioned at 50º angle in relation to the medial aspect of the lateral condyle (43 mm on the operat-ing table and 41 mm on a fixed leg holder), while the short-est tunnel (33 mm on the operating table and 31 mm on a fixed leg holder) was obtained with the lower leg flexed at 110º and the reamer positioned at a 70º angle. Conclusion. The optimal position of the leg on a fixed leg holder for ob-taining a femoral tunnel of sufficient length requires lower leg flexion of 120º and the position of the medial portal which enables the positioning of the reamer at a 60º angle in relation to the medial aspect of the lateral condyle. With the leg positioned on the operating table, it becomes unneces-sary to push the leg into flexion greater than 110º; rather a longer femoral tunnel is achieved by lateralization of the medial portal. © 2018, Institut za Vojnomedicinske Naucne Informacije/Documentaciju. All rights reserved.

Background and Objectives: Idiopathic anterior knee pain is a common condition in adolescents and is mostly of unknown cause. The aim of this study was to examine the influence of the Q-angle and muscle strength on idiopathic anterior knee pain. Materials and Methods: Seventy-one adolescents (41 females and 30 males) diagnosed with anterior knee pain were included in this prospective study. The extensor strength in the knee joint and the Q-angle were monitored. The healthy extremity was used as a control. The Student’s paired sample t-test was applied for testing the difference. Statistical significance was set at 0.05. Results: There was no statistically significant difference in the Q-angle value between the idiopathic AKP and the healthy extremity (p > 0.05) within the entire sample. A statistically significant higher Q-angle of the idiopathic AKP knee (p < 0.05) was obtained in the female subgroup. No statistically significant difference (p > 0.05) was found in the male subgroup. Within the male subgroup, the strength of the extensors within the knee joint of the healthy extremity had statistically significant higher values than the strength of these muscles in the affected extremity (p < 0.05). Conclusion: A greater Q-angle is a risk factor linked to anterior knee pain within the female population. Decreased muscle strength of knee joint extensors is a risk factor linked to anterior knee pain in both sex subgroups. © 2023 by the authors.