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  • Title: A new operative approach for flatfoot secondary to posterior tibial tendon insufficiency: a preliminary report.
    Author: Pomeroy GC, Manoli A.
    Journal: Foot Ankle Int; 1997 Apr; 18(4):206-12. PubMed ID: 9127109.
    Abstract:
    The treatment of Johnson stage 2 posterior tibial tendon insufficiency remains controversial. Because the deformities remain flexible in stage 2, bony osteotomies are preferable over fusion operations. It is our contention that operative intervention should address all of the components of the pes planovalgus deformity that exists in stage 2 disease. Seventeen patients with 20 cases of stage 2 posterior tibial tendon insufficiency were treated with heel cord lengthening, flexor digitorum longus to medial cuneiform tendon transfer, lateral column lengthening, and medial displacement calcaneal osteotomy. Preoperative, postoperative, and final radiographs while standing were analyzed to determine radiographic correction of the deformities. In addition, the American Orthopaedic Foot and Ankle Society's ankle/hindfoot rating scale was applied to all patients before surgery and at 6-month intervals after surgery. Currently, the average follow-up is 17.5 months. The average foot rating score preoperatively was 51.4 and has improved to 82.8. Radiograph measurements have demonstrated statistically significant correction of the pes planovalgus deformity, as well as maintenance of the correction to date. It is our conclusion that this combination of surgical procedures provides correction of the symptomatology and deformity associated with stage 2 posterior tibial tendon insufficiency. The long-term result of the procedure is unknown.
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