Total patellectomy for patellar aneurysmal bone cyst

Herein we report a case of patellar aneurysmal bone cyst of a 32-year-old female patient who was admitted to our outpatient clinic due to the swelling on her left knee. She was describing no trauma history but increasing pain and that the mass was expanding gradually by the time. Although it occurs rarely in patella, evaluation by radiographic and magnetic resonance images revealed that the mass was due to the patellar aneurysmal bone cyst, which also destructed the surface of the joint. Although there was no impairment in the range of motion of the patient's left knee in the preoperative evaluation, because of the destruction, we performed total patellectomy and extensor mechanism reconstruction by Zaricznyj technique instead of curettage and grafting. The patient was satisfied with the procedure performed after the surgery and there was no complication in the follow-up

Effect of glucosamine chondroitine sulphate on repaired tenotomized rat Achilles tendons

WOS: 000293815300009PubMed: 21762066Objectives: We evaluated the effects of glucosamine chondroitine sulphate (glcN-CS) on rat Achilles tendons in this experimental animal study. Materials and methods: Thirty Wistar albino type rats weighing 300-350 g were randomly grouped into two. Group A: Achilles tendons were tenotomized, repaired and, glcN-CS given orally. Group B: Achilles tendons were tenotomized and repaired. All the rats were fed with pellet chow. Five rats in each group were sacrificed at 4, 8, and 12 weeks interval. Tensile strength of three tendon specimen from each group were tested biomechanically and two specimen were analysed histopathologically via immunohistochemical staining and hematoxylin and eosin staining. Contralateral side Achilles tendons were also grouped and analyzed as controls (group C and D). Results: Histological results showed well organized collagen formation and less inflammation in group A. Biomechanical testing showed higher tendon strength in group A at eight weeks which is not statisticaly significant (55.3 +/- 4.84N, p=0.078). Rats which were were given glcN-CS had greater tendon strength which is statisticaly significant (50.01 +/- 5.62, p=0.014). Conclusion: Glucoseamine chondroitine sulphate improved results of Achilles tendon healing in rats. This result might be due to decreased inflammation and stimulation of collagen synthesis. Although glcN-CS is recommended only in osteoarthritic patients to relieve symptoms and signs it can also be prefered in treatment of soft tissue injuries formed during sports activities

Effect of glucosamine chondroitine sulphate on repaired tenotomized ratachilles tendons

Amaç: Bu deneysel hayvan çalışmasında glukozamin kondroitin sülfatın (glcN-CS) sıçan Aşil tendonları üzerindeki etkisi değerlendirildi. Gereç ve yöntemler: Otuz adet 300-350 g ağırlığında Wistar albino türü sıçan rastgele iki gruba ayrıldı. Grup A: Aşil tendonları tenotomize edildi, tamir yapıldı ve glcN-CS ağızdan verildi. Grup B: Aşil tendonları tenotomize edildi ve tamir yapıldı. Bütün sıçanlar pelet yem ile beslendi. Her gruptan beşer sıçan 4, 8. ve 12. haftalarda sakrifiye edildi. Her gruptan üç adet tendon örneğinin gerilme gücü biyomekanik olarak test edildi ve iki örnek de immünohistokimyasal boyama ve hematoksilen ve eozin boyama yapılarak histopatolojik açıdan analiz edildi. Karşı taraf Aşil tendonları da gruplandırıldı ve kontrol olarak analiz edildi (grup C ve D). Bulgular: Histolojik sonuçlarda, grup A’da daha az enflamasyon ve daha düzgün kollajen oluşumu olduğunu görüldü. Biyomekanik testlerde 8. haftada A grubunda istatistiksel olarak anlamlı olmasa da daha yüksek tendon güçleri kayıt edildi (554.84N, p0.078). Glukozamin kondroitin sülfat verilen hayvanlarda tendon gerilim güçleri istatiksel olarak anlamlı bir şekilde yüksek bulundu (50.015.62N, p0.014). Sonuç: Glukozamin kondroitin sülfat sıçanlarda Aşil tendonu iyileşme sonuçlarını geliştirmiştir. Bu sonuç enflamasyonu azaltması ve kollajen sentezini uyarması ile ilişkili olabilir. Her ne kadar glcN-CS sadece osteoartriti bulunan hastalarda semptom ve belirtileri geriletmesi için önerilse de spor yaparken oluşan yumuşak doku yaralanmalarının tedavisi için de tercih edilebilir.Objectives: We evaluated the effects of glucosamine chondroitine sulphate (glcN-CS) on rat Achilles tendons in this experimental animal study. Materials and methods: Thirty Wistar albino type rats weighing 300-350 g were randomly grouped into two. Group A: Achilles tendons were tenotomized, repaired and, glcN-CS given orally. Group B: Achilles tendons were tenotomized and repaired. All the rats were fed with pellet chow. Five rats in each group were sacrificed at 4, 8, and 12 weeks interval. Tensile strength of three tendon specimen from each group were tested biomechanically and two specimen were analysed histopathologically via immunohistochemical staining and hematoxylin and eosin staining. Contralateral side Achilles tendons were also grouped and analyzed as controls (group C and D). Results: Histological results showed well organized collagen formation and less inflammation in group A. Biomechanical testing showed higher tendon strength in group A at eight weeks which is not statisticaly significant (55.3±4.84N, p0.078). Rats which were were given glcN-CS had greater tendon strength which is statisticaly significant (50.01±5.62, p0.014). Conclusion: Glucoseamine chondroitine sulphate improved results of Achilles tendon healing in rats. This result might be due to decreased inflammation and stimulation of collagen synthesis. Although glcN-CS is recommended only in osteoarthritic patients to relieve symptoms and signs it can also be prefered in treatment of soft tissue injuries formed during sports activities

Radiological and Functional Comparison of Single-Bundle Anterior Cruciate Ligament Reconstruction: Transtibial Versus Anteromedial Technique

Background/aim: This study aimed to compare radiological and functional outcomes of patients who had single-bundle anterior cruciate ligament (ACL) reconstruction with autologous hamstring tendon grafts using transtibial (TT) versus anteromedial (AM) femoral tunnel drilling techniques. Materials and methods: Sixty patients who had been operated on between 2010 and 2013 were enrolled in this study. Tunnel positions and widenings in the femur and tibia were evaluated with radiographs, arthrometric measurements with a Rolimeter arthrometer (Aircast, Summit, NJ, USA), stability assessment with Lachman and reverse pivot shift tests, and functional assessment with the International Knee Documentation Committee and Tegner and Lysholm scoring systems. Results: Tunnel enlargement in the sagittal and coronal planes of the femur was higher with the TT technique (P < 0.0001) and that of the coronal planes of the tibia was also higher with the TT technique (P = 0.01). During the assessment with the Rolimeter, the difference between sides was significant with the TT technique (P = 0.013). Positive results of the Lachman and reverse pivot shift tests were more frequent with the TT technique (P < 0.05), and the Lysholm scores were higher with the AM technique (P = 0.001). Conclusion: ACL reconstruction with hamstring autografts by either TT or AM technique demonstrated similar and excellent results in terms of functional outcomes at the end of the first postoperative year. The TT group had increased tunnel enlargement, which may have uncertain long-term outcomes, compared with the AM group.WoSScopu