rBM-MSC and PRP promote the recovery of the tendon and increase its structural strength. The use of PRP and MSC provides hope for the treatment of the Achilles tendon ruptures that limit human beings' functionalities and quality of life, particularly for athletes. It is thought that the use of MSC can be more effective for tendon healing; hence, more extensive and advanced studies are needed on this topic.

Histopathological examination revealed that both LMWH and rivaroxaban have positive effects on tendon healing. However, the same positive effects were not detected in biomechanical examination.

Objective:To assess the histopathologic and biomechanical effects of hyaluronic acid (HA) and high-dose vitamin C (VC) on rat Achilles tendon healing. Methods:Forty-eight Sprague-Dawley rats were randomized to HA and VC and control groups with equal numbers. Each group was further divided into two subgroups to be sacrificed on Day 15 (n=8) and Day 30 (n=8). The Achilles tendons were cut and repaired. While the control rats remained untreated, HA and VC were administered after repair. The repaired tendons were removed for biomechanical and histopathologic analyses. In the biomechanical tests, the tendons were stretched to failure and maximum forces were measured. For histopathologic examination, the specimens were interpreted semiquantitatively using Movin’s grading scale and Bonar scores. Results:The highest mean forces were obtained in the HA group on Day 15 and in the VC group on Day 30, with a significant difference between HA and VC on Day 15 between control and VC on Day 30 (p<0.05). Histological examination showed both Movin and Bonar scores decreased in all groups on Day 30, with significant improvements in the HA and VC groups (p<0.05). Conclusion:Our results demonstrated that both VC and HA had therapeutic effects on tendon healing, especially in the late phase. Level of Evidence I; High quality randomized trial with statistically significant difference.

ObjectiveThe aim of this study to evaluate the effects of autologous conditioned serum (ACS) on the healing of transected rat Achilles tendons via the assessment of biomechanical and histological parameters.MethodsThe study was conducted on 45 male Sprague–Dawley rats. Five rats were used as donors for ACS preparation. Animals were randomly assigned to the experimental or control group. In both groups, the Achilles tendon was cut transversally and then sutured. In the placebo control and ACS-treated groups, saline or ACS, respectively, was injected into the repair zone three times after surgery. Ten rats from each group (ACS group, n = 20; control group, n = 20) were euthanized at days 15 and 30 after surgery for histopathological (n = 5) and biomechanical (n = 5) testing. The histopathological findings were interpreted using the Bonar and Movin scales. Tendon remodelling was evaluated via the immunohistochemical staining of collagen type 3. Biomechanical effects were assessed by tensile testing.ResultsThe Bonar and Movin scale scores were significantly better in the ACS-treated group on both day 15 (p = 0.003 and p = 0.003, respectively) and day 30 (p = 0.005 and p = 0.004, respectively). The immunohistochemical density of collagen type 3 was significantly lower in the ACS-treated group on day 30 (p = 0.018). The type 1/3 collagen ratios of the groups were similar on days 15 and 30, as determined by Sirius Red staining (p = 0.910 and p = 0.133, respectively). In the biomechanical assessment results, the ACS-treated group's maximum load to failure values were significantly higher on day 15 (p = 0.049).ConclusionInjection of ACS had a positive effect on the histopathological healing of rat Achilles tendons on days 15 and 30 and on biomechanical healing on day 15. ACS treatment contributed to lowering the collagen type 3 density by day 30. According to our study, ACS may be favourable for the treatment of human Achilles tendon injuries and tendinopathies.

Sildenafil had a positive effect on fracture healing, while pentoxifylline did not provide consistent positive effect.

Bu çalışmada diyabetik ayaklı hastalarda ve yeni tanı konulmuş tip 2 diabetes mellitus (DM)'lu hastalarda osteoprotegerin (OPG) ve 25-hidroksi D vitamini (25(OH)D) düzeyleri karşılaştırıldı ve diyabetik ayaklı hastalarda 25(OH)D eksikliğinin yaygınlığı ve şiddeti araştırıldı. Hastalar ve yöntemler: Bu ileriye dönük çalışma Haziran 2014 ve Mayıs 2015 tarihleri arasında hastanemize başvuran 58 diyabetik ayaklı hasta (42 erkek, 16 kadın; ort. yaş 63.6 yıl; dağılım, 31-90 yıl) ve 47 yeni tanı konulmuş tip 2 DM'li hasta (27 erkek, 20 kadın; ort. yaş 51.4 yıl; dağılım, 29-85 yıl) (kontrol grubu) olmak üzere 105 hasta üzerinde gerçekleştirildi. Her iki grupta 25(OH)D ve OPG serum düzeyleri ölçüldü ve karşılaştırıldı. Bulgular: Diyabetik ayak grubunda OPG düzeyleri kontrol grubundan anlamlı olarak daha yüksekti (p<0.05). Diyabetik ayak grubunda 25(OH)D düzeyleri kontrol grubundan anlamlı olarak daha düşüktü (p<0.05). Diyabetik ayaklı hastalarda OPG düzeyleri ve C-reaktif protein (CRP) ve kreatinin düzeyleri arasında pozitif ilişkiler vardı. Sonuç: Diyabetik ayaklı hastalarda yükselmiş OPG düzeyleri, OPG'nin CRP ve kreatinin ile pozitif ilişkisine bağlı olarak klinik durumun şiddetini gösterebilir. Diyabetik ayaklı hastaların çoğunluğunda ciddi 25(OH)D eksikliği tespit edildi. Diyabetik ayaklı hastalarda istenmeyen immünolojik değişiklikleri önlemek için D vitamini suplemantasyonu gerekli olabilir.

This is a case of generalized annular elastolytic giant cell granuloma (AEGCG) associated with borrelia infection and genes of p-30, p-31, p-39 RESUMEN Se trata de un caso de granuloma elastolítico anular de células gigantes (GEACG) generalizado, asociado con infección por Borrelia y con los genes de p-30, p-31, p-39. Una posible reacción transmediada del tipo de célula T que podría haber inducido la GEACG, se discute a partir del concepto de "proteínas de shock térmico (PST) y mímica molecular".Palabras claves: Granuloma anular elastolítico de células gigantes, Borrelia burgdorferi, proteínas de shock térmico, enfermedad de Lyme, mímica molecular West Indian Med J 2015; 64 (4): 447From:

Relationship between the tilt angle of bipolar radial head prostheses and radiological radiocapitellar instability