Ponseti Treatment of Rigid Residual Deformity in Congenital Clubfoot After Walking Age

Nonneurologic Cavovarus Feet in Skeletally Immature Patients: Main Causes and Principles of Treatment

The foot resembles a tripod. The 3 legs consist of (1) the tip of the heel, (2) the first metatarsal, and (3) the fifth metatarsal. This concept is useful to explain cavus or flat feet. When the tips of the tripod move closer, the arch becomes higher. The leg of the tripod that moves the most will determine the type of cavus feet, which can be hindfoot cavus, forefoot cavus, or first metatarsal cavus. Cavovarus foot denotes the presence of a three-dimensional deformity of the foot, but it is much more a descriptive feature than a diagnosis.

Surgical Management of the Undercorrected and Overcorrected Severe Club Foot Deformity

Managing complications of clubfoot deformities can be very challenging. Some patients present with recurrent clubfoot and residual symptoms, and some present with overcorrection leading to a severe complex flatfoot deformity. Both can lead to long-term degenerative changes of the foot and ankle joints owing to deformity caused by unbalanced loading. This article only focuses on severe complications caused by recurrence and overcorrection in both children and adult patients.

An Approach to the Management of Severe Clubfoot Deformities on Global Humanitarian Programs: The Role of Talectomy

The approach to treatment of severe untreated or recurrent congenital talipes equinovarus deformities is very different in the world where patients are mobile, have access to repeated return visits for follow-up treatment, and where more sophisticated options for gradual correction with external fixation are available. For treatment, talectomy may be the only option to treat certain neglected clubfoot deformities during humanitarian programs and it may still have to be used as a salvage procedure used in modern foot surgery. Our extensive experience with these deformities has been on global humanitarian programs.

From Codivilla to Ponseti: historical narrative review on clubfoot treatment in Italy

Objective

This narrative review aims to summarize the historical steps of clubfoot treatment in Italy, identifying the centuries-old historical advancement in the deformity management and the most influent involved people.

Background

Clubfoot, also referred to as congenital talipes equinovarus, is a relatively common deformity that has significative consequences in the child if it is left untreated. Effective and early treatment of clubfoot has been praised as one of the most successful practice of modern pediatric orthopedics and both surgical and conservative techniques have been proposed over the decades. As an example, Codivilla’s posteromedial release (PMR) has been known internationally as one of the milestones of surgical treatment.

Methods

The narrative review includes clinical studies and reviews concerning clubfoot that were written in English, German and Italian. As an historical review, no limits of years were considered. The search was performed using PubMed, Google Scholar, Scopus, Medline and Cochrane Library databases up to January 2021. A combination of search terms including ‘history’, ‘clubfoot’, ‘conservative management’, ‘Codivilla’, ‘Ponseti method’, ‘relapse’ was utilized. Particular attention was given to papers written by Italian authors.

Conclusions

Current clubfoot treatment arises from several studies and clinical research over the centuries. Many surgeons, starting from mid-16th century, have studied the deformity trying to find a successful and effective technique to achieve full correction. Italian scientists, surgeons and prestigious institutions surely took part in this process.

Soft tissue release combined with joint-sparing osteotomy for treatment of cavovarus foot deformity in older children: Analysis of 21 cases

BACKGROUND

Cavovarus foot is a common form of foot deformity in children, which is clinically characterized by an abnormal increase of the longitudinal arch of the foot, and it can be simultaneously complicated with forefoot pronation and varus, rearfoot varus, Achilles tendon contracture, or cock-up toe deformity. Muscle force imbalance is the primary cause of such deformity. Many diseases can lead to muscle force imbalance, such as tethered cord syndrome, cerebral palsy, Charcot-Marie-Tooth disease, and trauma. At present, many surgical treatments are available for cavovarus foot. For older children, priority should be given to midfoot osteotomy and fusion. Since complications such as abnormal foot length, foot stiffness, and abnormal gait tend to develop postoperatively, it is important to preserve the joints and correct the deformity as much as possible. Adequate soft tissue release and muscle balance are the keys to correcting the deformity and avoiding its postoperative recurrence.

AIM

To assess the efficacy of soft tissue release combined with joint-sparing osteotomy in the treatment of cavovarus foot deformity in older children.

METHODS

The clinical data of 21 older children with cavovarus foot deformity (28 feet) who were treated surgically at the Ninth Department of Orthopedics of Jizhong Energy Xingtai Mining Group General Hospital from November 2014 to July 2017 were retrospectively analyzed. The patients ranged in age from 10 to 14 years old, with an average age of 12.46 ± 1.20 years. Their main clinical manifestations were deformity, pain, and gait abnormality. The patients underwent magnetic resonance imaging of the lumbar spine, electromyographic examination, weight-bearing anteroposterior and lateral X-rays of the feet, and the Coleman block test. Surgical procedures including metatarsal fascia release, Achilles tendon or medial gastrocnemius lengthening, "V"-shaped osteotomy on the dorsal side of the metatarsal base, opening medial cuneiform wedge osteotomy, closing cuboid osteotomy, anterior transfer of the posterior tibial tendon, peroneus longus-to-brevis transfer, and calcaneal sliding osteotomy to correct hindfoot varus deformity were performed. After surgery, long leg plaster casts were applied, the plaster casts were removed 6 wk later, Kirschner wires were removed, and functional exercise was initiated. The patients began weight-bearing walk 3 mo after surgery. Therapeutic effects were evaluated using the Wicart grading system, and Meary’s angles and Hibbs’ angles were measured based on X-ray images obtained preoperatively and at last follow-up to assess their changes.

RESULTS

The patients were followed for 6 to 32 mo, with an average follow-up period of 17.68 ± 6.290 mo. Bone healing at the osteotomy site was achieved at 3 mo in all cases. According to the Wicart grading system, very good results were achieved in 18 feet, good in 7, and fair in 3, with a very good/good rate of 89.3%. At last follow-up, mean Meary’s angle was 6.36° ± 1.810°, and mean Hibbs’ angle was 160.21° ± 4.167°, both of which were significantly improved compared with preoperative values (24.11° ± 2.948° and 135.86° ± 5.345°, respectively; P < 0.001 for both). No complications such as infection, skin necrosis, or bone nonunion occurred.

CONCLUSION

Soft tissue release combined with joint-sparing osteotomy has appreciated efficacy in the treatment of cavovarus foot deformity in older children.

Updates in Pediatric Cavovarus Deformity

The treatment goal for pediatric cavovarus deformities is to neutralize plantar pressure distribution, reduce hindfoot varus deformity, and avoid or postpone ankle, midfoot, and hindfoot arthritis. If nonoperative treatment is not sufficient, surgical realignment must be discussed. Promising improvements in decision making and operative techniques have been published. To avoid disappointment owing to recurrence or failures of operative procedures, selection of the appropriate and preferably single operative procedure remains the most crucial factor for success. This article focuses on current treatment options depending on the localization of the anatomic pathology. Outcomes of nonoperative and operative treatments are presented.

The Ponseti method of clubfoot treatment in walking age children: is it effective? A study of 56 children from 1 to 10 years of age

The Ponseti method is well-established for the treatment of clubfoot in younger babies; however, its effectiveness in older children is still unclear. The aim of our study was to report our results of the 'traditional' Ponseti method in the management of clubfoot in children of walking age. A total of 56 (81 clubfeet) children with a mean age of 3.16±2.35 years (1-10 years) were divided into two groups: group I consisted of 12 (18 clubfeet) patients with a mean age of 3.36±2.7 years (range: 1-8.4 years) who presented with an untreated clubfoot whereas group II consisted of 44 (63 clubfeet) patients with a mean age of 3.19±2.34 years (range: 1-10 years) who presented with a recurrent clubfoot. All children underwent the standard manipulation and casting technique described by Ponseti, including a percutaneous tenotomy of the Tendo Achilles. The bracing protocol was modified appropriately. All feet corrected with a mean of 7.36 (3-17) casts in group I and 4.49 (1-12) casts in group II. All children in group I and 70.45% in group II underwent a percutaneous Tendo Achilles tenotomy. There was a statistically significant change between the pretreatment and post-treatment Pirani scores in both groups. Nineteen (30.86%) patients underwent relapse at a mean follow-up of 2.84±1.25 years (1.2-5.4 years), who were treated by re-casting, bracing and tibialis anterior tendon transfer. The Ponseti method is effective even in walking age children upto the age of 10 years with a good success rate, although approximately one-third of the clubfeet relapsed and needed further treatment. No modifications to the standard casting protocol are required. Despite a high relapse rate, a supple, plantigrade and pain-free foot is achievable without the need for extensive soft-tissue surgeries or bony procedures. The Ponseti method lends itself well to developing a nation-wide program for clubfoot treatment in countries with limited resources. Level of Evidence: Level III.

Efficacy of Ponseti Technique in Virgin and Relapsed Clubfeet: A Comparative Study

Doubts still loom over the effectiveness of Ponseti casting in treating children with recurrent clubfeet. We have undertaken this study to confirm whether excellent results obtained in treating virgin clubfeet by Ponseti casting can be reproduced with equal success in relapsed clubfeet. The patients were divided into 2 groups; Group I was untreated children with congenital clubfeet younger than 1 year of age (21 feet) and Group II was children with relapsed congenital clubfeet younger than 2 years of age (21 feet). The Ponseti method was applied with equal success in both groups. Groups I (virgin) and II (recurrent) were similar in terms of number of casts, period of immobilization, and successful initial correction. We did not find statistically significant differences (p value = .75) when comparing the number of casts required for correcting deformity in virgin (mean 6.3) and relapsed group (mean 5.5). The Pirani score improved significantly after treatment from 4.3 to a post-treatment value of 0.4 (p < .001) in recurrent clubfeet and from 5.4 to 0.31 (p < .001) in virgin clubfeet. The results of our study suggest that excellent initial correction of deformity can be achieved without the need for an extensive soft tissue release in more than 95% of children with recurrent clubfeet.