Flat Foot Repair

What is Flat Foot or Hyperpronation?


Pronation is a normal motion of the foot. Specifically, it is the complex motion between the ankle bone, which turns inward, and the rest of the foot which turns out. This is a very important function of the foot to aid walking, especially on uneven ground. Pronation is the body’s shock absorber, it helps the body adjust to the impact of walking or running.

Hyperpronation is a very common deformity when there is excessive or too much pronation occurring in the foot. The arch of the foot adopts a flattened appearance and allows excessive foot motion. This excessive motion occurs in the ankle and the heel as well as the rest of the foot every step taken.

Hyperpronation also causes knees to turn inwards and can be responsible for knee, hip and low back pain. Patients can present with pains in multiple joints in their feet and legs.

The non-surgical correction of flat foot or hyperpronation can be achieved with orthoses (Foot supports) and exercise programmes.

Flat foot or Hyperpronation results in the abnormal closure of the sinus tarsi. This is a area between the bones of the heel. A simple surgery correction of hyperpronation is to insert a spacer into the sinus tarsi to prevent hyperpronation. This implant is called an Sinus Tarsi arthrodesis.

In severe cases of flat foot, years of hyperpronation can cause tendon degeneration and degeneration of joints. These feet are not suitable for Sinus Tarsi arthrodesis. In these cases different surgical procedures are performed to correct the specific area of degeneration in each person. These corrective foot surgery procedures could include

  • Tendoachilles lengthening
  • Evans Osteotomy
  • Calcaneal Osteotomy
  • Tightening of Spring Ligament.
  • Arthritic Joint Fusions e.g. Talor–Navicular joint.

Flat Foot Synonyms and related keywords: pes planus, acquired adult flatfoot, posterior tibial tendon dysfunction, PTT dysfunction, posterior tibial tendon insufficiency, PTT insufficiency, Chopart joint, too-many-toes sign, Evan calcaneal osteotomy, Calcaneal displacement osteotomy.

Hypocure Sinus Tarsi Arthroesis

Dr Michael Graham, US Doctor of Podiatric Medicine, developed the Hypocure Sinus Tarsi Arthroesis. Your Post operative care at Fitter Feet For life, follows his guidelines below.

Post-operative care in summary

Day of Surgery

  • Foot is numb for up to 8 hours after surgery
  • Take pain meds, anti-inflammatory meds
  • Keep foot elevated

Day after Surgery

  • The highest level of post-op pain
  • Keep foot elevated
  • Take pain meds, anti-inflammatory meds\tab
  • Avoid salt, sodas, etc.
  • Ice foot
  • No shower, do not get foot wet

3-4 Days after Surgery

  • Return to your Podiatric Surgeon for post-op check and bandage change
  • Take anti-inflammatory meds
  • Ice foot

7-10 Days after Surgery

  • Return to Podiatric Surgeon’s office for post-op check
  • Soreness present
  • Take anti-inflammatory meds
  • Ice foot

2-3 Weeks after Surgery

  • Return to Podiatric Surgeon’s office for post op weight-bearing x-rays
  • Removal of sutures
  • Take anti-inflammatory meds
  • Ice foot
  • Soreness still present

4-6 Weeks after Surgery

  • Increase activities to tolerance
  • Soreness going up/down stairs
  • Take anti-inflammatory meds
  • Ice foot

2-3 Months after Surgery

  • Soreness is still present

4-6 Months after Surgery

  • Majority of soreness should be resolved

6-8 Months -1 Year after Surgery

  • Foot is well adjusted