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  • Title: [Triple arthrodesis with osteotomy for the treatment of stage IIB and stage III adult-acquired flatfoot deformity].
    Author: Tang KL, Zhou JB, Yang HF, Tan XK, Xie MM, Tao X, Xu G, Xu JZ.
    Journal: Zhonghua Yi Xue Za Zhi; 2010 Sep 07; 90(33):2313-6. PubMed ID: 21092487.
    Abstract:
    OBJECTIVE: To analyze the clinical outcomes of triple arthrodesis with osteotomy in the treatment of Stage IIB and Stage III adult-acquired flatfoot. METHODS: The authors reviewed 10 cases of adult-acquired flatfoot, including 3 cases of stage IIB adult-acquired flatfoot and 7 cases of stage III adult-acquired flatfoot. They were treated by triple arthrodesis with osteotomy of subtalar joint (STJ), talonavicular joint (TNJ) and calcaneocuboid joint (CCJ). The combined medial and lateral incisions were used to obtain adequate exposure for CCJ, STJ and TNJ. Then the cartilages of CCJ, STJ and TNJ were completely denuded and osteotomies to restore their proper alignments. The optimal positioning of hindfoot could be achieved and fixed by Kirschner wires. Two cannulated screws of 7.3 mm were delivered through the plantar aspect of heel to fix STJ. And then two 4.5 mm cannulated screws individually fixed TNJ and CCJ distal to proximal. Clinical evaluations were based on the AOFAS ankle-hindfoot scale and subjective assessments of pains, function, cosmesis and overall satisfaction. Radiographic evaluations included measurements of anterior-posterior talo-first metatarsal angle, lateral talocalcaneal angle, lateral talo-first metatarsal angle and an assessment of time to union for all arthrodeses. RESULTS: All patients were followed-up with a mean time of 13.2 (6 - 21) months. The average AOFAS ankle-hindfoot scale improved from 39.4 ± 4.4 preoperatively to 83.7 ± 2.6 postoperatively (P < 0.01). And the patients experienced subjective improvements in pain, function and cosmesis. Overall, all patients were satisfied. Radiographically, the rate of bone healing was 100%. The anterior-posterior talo-first metatarsal angle, lateral talocalcaneal angle and lateral talo-first metatarsal angle statistically improved. No complication, such as infection and un-union, was reported. CONCLUSION: Triple arthrodesis with osteotomy is an effective procedure for the treatment of stage IIB and III adult-acquired flatfoot deformity. It may relieve pains, correct structural deformities and obtain excellent clinical outcomes.
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