A Closer Look At The Percutaneous Calcaneal Displacement Osteotomy

Start Page: 66
Here one can see a preoperative view of a pediatric flatfoot deformity.
This post-op photo of a pediatric flatfoot deformity depicts a percutaneous calcaneal displacement osteotomy after the removal of two 0.62 K-wires.
In this intraoperative photo, one can see a percutaneous calcaneal displacement osteotomy with one guide wire.
This view shows a percutaneous calcaneal displacement osteotomy with two guide wires.
Here is a postoperative shot of a percutaneous calcaneal displacement osteotomy with two large cancellous screws.
Here is an interoperative calcaneal axial fluoroscopic view of the foot following percutaneous posterior displacement of the calcaneus.
By Lawrence DiDomenico, DPM

Podiatric surgeons commonly perform an extraarticular calcaneal osteotomy on hindfoot deformities of the foot and ankle.1 One would typically perform this powerful osteotomy in conjunction with other procedures. Complications with the percutaneous calcaneal displacement osteotomy are rare.2-4
This is in contrast to the customary lateral approach of a calcaneal osteotomy as the surgeon may see complications that include wound dehiscence, sural nerve damage, sural neuritis, delayed union, non-union, infection and invasion of the medial neurovascular structures.2-6
Due to the thin soft tissue layer on the lateral aspect of the calcaneus, wound dehiscence is a common problem one encounters when performing the traditional lateral approach to the calcaneal osteotomy. Large incisions on the lateral aspect of the calcaneus can cause fibrosis in this area, leading to nerve symptoms. When performing this osteotomy open, the surgeon must be cautious about exiting the medial aspect of the calcaneus due to the neurovascular structures.6-7

When it comes to the percutaneous calcaneal displacement osteotomy technique, one would perform this procedure through four small stab incisions. The technique avoids major neurovascular structures. I have successfully completed more than 100 percutaneous calcaneal displacement osteotomies since the year 2000. With this procedure, I have been able to achieve radiographic evidence of osseous healing, minimize wound problems, avoid invading the neurovascular structures and provide pleasing cosmetic results to the surgical site.

What Does The Research Reveal?
Numerous authors have described the medial displacement osteotomy for the treatment of conditions such as calcaneal valgus deformities, posterior tibial tendon dysfunction and flexible flatfoot deformities with good results reported for adults and children.1-4,8-20
Posterior tibial tendon dysfunction occurs when the adult-acquired flatfoot becomes evident with the heel in a valgus position, the flattening of the medial longitudinal arch and forefoot abduction.14,16,21 Surgeons are currently using calcaneal osteotomies in combination with various ancillary procedures to treat posterior tibial tendon dysfunction.2,3,8-10,12-17,21-31
Flexible flatfoot is one of the most common orthopedic problems among children.17,18 Torosian, et. al., found that the medial slide calcaneal osteotomy is a simple and effective treatment for hindfoot valgus.19 When one detects valgus malalignment, medializing the calcaneus provides satisfactory outcomes.22
In advanced stages of the deformity, the medial column may be affected. Accordingly, there is a need for tendon transfers or joint fusions (in adults), and these are effective treatments when one combines them with the medial calcaneal displacement osteotomy.22

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