Calgary Zoo Association of Zoos and Aquariums. The report, released in 2010, spotlighted systemic problems. In response, the zoo developed a 36-point plan that included improving animal care procedures and collection planning, addressing staffing issues like training and structure, enhancing security systems and safety drills, and upgrading aging zoo infrastructure. Later that year, the zoo hired noted animal welfare specialist, Dr. Jake Veasey, who has since instituted major changes and spearheaded new investment in animal facilities. In March 2012, Amur tiger Katja gave birth to three Amur tiger cubs at the zoo. The species is so highly endangered (there are an estimated
Hip replacement advantage of becoming a more extensile approach if needed. Critics cite a higher dislocation rate, although repair of the capsule, piriformis and the short external rotators along with use of modern large diameter head balls reduces this risk. The "lateral approach" is also commonly used for hip replacement. The approach requires elevation of the hip abductors (gluteus medius and gluteus minimus) to access the joint. The abductors may be lifted up by osteotomy of the greater trochanter and reapplying it afterwards using wires (as per Charnley), or may be divided at their tendinous portion, or through the functional tendon (as