Rockerbottom foot following clubfoot surgery

NewsBot · Dec 26, 2007

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The incidence and treatment of rocker bottom deformity as a complication of the conservative treatment of idiopathic congenital clubfoot
G. Koureas; V. Rampal; E. Mascard; R. Seringe; and P. Wicart
Journal of Bone and Joint Surgery - British Volume, Vol 90-B, Issue 1, 57-60.

Rocker bottom deformity may occur during the conservative treatment of idiopathic congenital clubfoot. Between 1975 and 1996, we treated 715 patients (1120 clubfeet) conservatively. A total of 23 patients (36 feet; 3.2%) developed a rocker bottom deformity. It is these patients that we have studied. The pathoanatomy of the rocker bottom deformity is characterised by a plantar convexity appearing between three and six months of age with the hindfoot equinus position remaining constant. The convexity initially involves the medial column, radiologically identified by the talo-first metatarsal angle and secondly by the lateral column, revealed radiologically as the calcaneo-fifth metatarsal angle. The apex of the deformity is usually at the midtrasal with a dorsal calcaneocuboid subluxation. Ideal management of clubfoot deformity should avoid this complication, with adequate manipulation and splinting and early Achilles’ percutaneous tenotomy if plantar convexity occurs.

Adequate soft-tissue release provides satisfactory correction for rocker bottom deformity. However, this deformity requires more extensive and complex procedures than the standard surgical treatment of clubfoot. The need for lateral radiographs to ensure that the rocker bottom deformity is recognised early, is demonstrated.
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NewsBot · Apr 15, 2018

Limitation of flatfoot surgery in overcorrected clubfeet after extensive surgery
Oliver Eberhardt et al
Archives of Orthopaedic and Trauma Surgery: 09 April 2018

Introduction
Flatfoot is a severe complication of extensive clubfoot surgery. In this retrospective study, we evaluated our results following flatfoot surgery in overcorrected clubfeet. The aim was to analyze the success of different surgical techniques, including tarsal osteotomies and arthrodesis, in correcting different types of flatfeet.

Material and method
Between January 1, 2011 and December 31, 2015 we treated 25 severe cases of flatfeet after extensive clubfoot surgery. We classified the hindfoot deformities into rotational valgus, hinge valgus or translatory valgus based on AP standing X-rays. Tarsal osteotomies (Mitchell, Evans, Cotton) and arthrodesis were adapted based on age and severity. Age, gender, pain, hindfoot valgus and function were documented. Function and X-rays were compared pre- and postoperatively.

Results
There were 17 male and 4 female patients. Age at operation ranged from 11 to 26 years with an average age of 14.3 years. The mean follow-up was 27.6 months (7–60 months). Primary surgical treatment was a tarsal osteotomy in 19 cases and in six cases it was arthrodesis. Hindfoot valgus (Ø 18.6°–3.2°), calcaneal pitch (Ø 6.2°–14.6°), Costa Bartani angle (Ø155°–142°) and Meary angle (Ø 2.0°–8.8°) improved pre- to postoperatively. Range of motion did not improve after surgical correction. 81% were satisfied with the postoperative results. All flatfeet with translatory valgus, initially treated with a tarsal osteotomy, needed further arthrodesis due to primary undercorrection.

Conclusion
Tarsal osteotomies are successful methods for correcting flatfeet following extensive clubfoot surgery with rotational valgus and mild hinge valgus. Tarsal osteotomies are unable to successfully correct flatfeet that have a translatory valgus. In such cases, we recommend double or triple arthrodesis. The functional outcome is limited by the preop range of motion and the appearance of talus deformities.
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