Aladdin slippers. the why and where for.
A simple question but very difficult to answer without going into some detail. Have posted a reconstructed lower hind leg. Must be the only site member more interested in feet than heads
Forgot to put in extensor tendon on front of leg.
The bones are held together by various ligaments but the one of interest to us is the suspensory ligament. This allows the deer to stand using minimum muscle power. It also helps the bones make a semi-rigid lever for the tendons to work on.
The flexor tendons bend the lower leg backwards and the extensor tendon brings it forward. When the animal moves the leg is brought forward by the extensor muscles and tendon and the hoof bulb, soft cushion like hits the ground fractionally before the toe. On take off the toe digs into the ground and lifts the bulb off. The hoof describes an arc and the heel goes down again
What happens with aladdin slippers is the excessive growth of the hoof and the leverage on the toe by the motion forces it up. Due to pain the deer starts walking on the heel as much as possible. Eventually the toe grows upwards due to the rocking motion
The causes are many.
1. Abnormal bone growth.
2. Excess growth over wear.
3. Illness increases blood pressure hoof grows faster.
4 Infection in that leg increased blood supply hoof grows faster.
5. Diet leading to laminitis.
6. Injury to suspensory ligament.
In the photo submitted there has been excess growth in the accessory digit as well..
Would be interesting if other hooves affected .
Yes the animal would be in pain as stretching the suspensory ligament adopting abnormal posture and gait.
Hoof grows +/- 0.5 cms per month. Faster in the summer and autumn than winter. The slower growth in winter is due to the deer lowering their metabolic rate hence they eat less.
Hopefully made explanation clear.
If you need more info pm me. If you come across examples keep legs and pm me please ?
Interestingly I have noticed Lechwe and Sitatunga antelope have long feet. ?? Evolutionary and/or damp living conditions.