A poodle called Diamond has been referred for a total hip replacement, and another, with the same owner, needs a new knee. Noel Fitzpatrick operates on both dogs on the same day, and doesn't finish until 3am. Hopity, a 12-week-old Balinese kitten, has a deformity on one of her back legs, which she could end up losing, while the operation itself is a huge risk. Hazell has brought in Dandi, a five month-old German shepherd who is lame in both front legs.