Tendon tears produce pain and decrease joint stability; each year, over 1.1 million rotator cuff tendon surgical procedures are performed worldwide. However, surgical success is highly variable, and the inability of the procedure to drive the regeneration of the normal tendon-bone interface has been identified as a key factor in surgical failure. This study focuses on the development, in vitro evaluation, and in vivo assessment of a tissue scaffold derived from bovine cancellous bone with the potential to direct regeneration of a bone-soft tissue interface. The scaffold is a highly porous scaffold with a continuous hard tissue-soft tissue transition that facilitates load transfer across the interface and contains all of the extracellular matrix components of the orthopedic interface. This study demonstrated the in vitro characterization of the mechanical properties and successful in vivo assessment using an ovine model.

Pyometra is not a common disease in cats however in Egyptian veterinary clinics where owners do not usually go for elective neutering become a more common affection. It is an acute or chronic purulent endometritis, a sequel to progesterone stimulation. The traditional therapy for pyometra is ovariohysterectomy however medical treatment may be requested by owners or cat condition may not permit surgical treatment. The aim of the present study is to characterize the pyometra in cats and compare between ovariohysterectomy and medical treatment using PGF2α alone or PGF2α in combination with dopamine agonist. 45 cats were diagnosed with pyometra. Cats divided into 3 groups. Group 1 (n= 23): animals received PGF2α, Group 2 (n= 15): cats received PGF2α plus oral administration of Bromocriptine. Group 3 (n=7): went for ovariohysterectomy. Survival analysis of cats was performed in this study for 2 years after diagnosis. In G1 we censored 14 animals, eight of them returned with recurrent pyometra. The first recurrent case was recorded 3 months post-treatment. In G2 we censored 12 cats, four of them were returned with recurrent pyometra, the first recurrent case was met 8 months post-treatment. After 24 months, both G1 and G2 have no difference in the survival rate which reach for both treatment about 60% success in both groups. However, G3 survival rate was 100% success. Using dopamine agonist in medical treatment my delay the recurrences of pyometra for a short term however ovariohysterectomy whenever possible may be the best choice for treatment of pyometra.

The aim of the present study was to determine different affections of the salivary ducts in buffaloes with special reference to diagnosis and treatment. The study was carried out on 39 buffaloes suffering from different affections of the salivary ducts. The recorded affections of the salivary ducts in buffaloes include; ectasia of the parotid duct (21 cases), parotid duct fistula (15 cases) and sialocele (3 cases). Each case was subjected to full study including case history, clinical examination, diagnosis, and treatment whenever possible. Exploratory puncture and radiography were used for confirmation of diagnosis. Intraoral marsupialization was performed for treatment of parotid duct ectasia. Salivary fistula was corrected by one of two successful techniques; the first by reconstruction of the parotid duct and the second by ligation of the parotid duct just caudal to the fistula opening. Sialoceles were corrected by removal of the mandibular salivary gland of the affected side.

The present study was carried out on a total number of six adult Saedi sheep and 16 thoracic and pelvic limbs of mature saedi sheep of both sexes collected from the slaughter house. In addition, two cases of interdigital cysts were reported in Rahmany sheep.The results indicated that interdigital pouch is present in the four limbs of sheep of both sexes. The pouch is a tube like a pipe with long narrow neck and wide blind sac. Surgical excision of the pouch is easy and can be performed without any post-operative complications. For the first time, according to the available literatures, two cases of interdigital cysts were reported and subjected to treatment by excision of the cysts without any postoperative complications.

The present retrospective study was conducted from 2003 to 2015 in Egypt to document common surgical affections of the udder and teat in cattle and buffaloes, and determine medical and surgical treatment options that are feasible in a field setting. We diagnosed 19 different surgical affections and classified them into 4 groups according to their location. Teat orifice affections (12.41%) included imperforate teat, contracted teat orifice, enlarged teat orifice, and black spot. Teat cistern affections (23.76%) included teat fistula, dilated teat cistern, teat polypi, and webbed teat. Teat surface affections (50.35%) included sore teat, supernumerary teat, sloughed teat, teat papilloma and fibropapilloma, teat wounds, and teat viral lesions. Udder affections (13.48%) included hypermastia, udder wounds, and suppurative and gangrenous mastitis. In cattle, the number of surgical affections located on the teat surface (20 ± 5.4) was significantly higher compared with other locations as well as compared with buffaloes (P<0.05). No treatment was indicated in 24% of recorded cases. Medical and surgical treatment was indicated in 73.75% of affected animals. Favorable results were achieved with the recommended treatments when applied in the field.