Treatment of idiopathic club foot using the Ponseti method. Initial experience

Missed Visits Predict Recurrence in Idiopathic Clubfoot

BACKGROUND

Congenital talipes equinovarus, also known as "clubfoot," is a common congenital deformity. While reported relapse rates vary widely, relapse continues to be a common problem faced in the treatment of this condition. The objective of this study is to assess relationships between demographic/socioeconomic factors, follow-up, and rates of relapse in our population of clubfoot patients.

METHODS

Retrospective chart review was conducted for patients undergoing treatment for idiopathic clubfoot from February 2012 to December 2022 at a tertiary children's hospital. Records were analyzed for follow-up adherence and recurrence in the Ponseti method, in addition to patient demographic and socioeconomic factors. Statistical analysis was performed to evaluate associations between recurrence, missed clinical visits, and demographic/socioeconomic factors of interest.

RESULTS

Ninety-five patients were included in the study [74.7% male (N=71) and 25.2% female (N=24)]. A total of 64.2% (N=61) of patients developed recurrence during their treatment. Recurrence rates differed significantly by reported bracing noncompliance >1 month (35/46 vs. 26/49, P=0.019), having missed 1 or more clinical visits (38/61 vs. 8/34, P < 0.001), Medicaid or equivalent insurance type (41/56 vs. 20/39, P=0.028), non-white race (47/66 vs. 14/29, P=0.032, higher Social Deprivation Index score (56.13 vs. 41.06, P=0.019). Significant variables were analyzed using a multivariate logistic regression analysis (MVLR). After MVLR, having 1 or more missed clinical visits (OR 4.462, 95% CI: 1.549-12.856) remained significantly associated with increased rates of recurrence. Primary language preference and distance to the hospital were not associated with recurrence.

CONCLUSIONS

Higher SDI scores, non-white race, Medicaid insurance, and missed clinical follow-up visits were all associated with increased rates of recurrence for clubfoot patients. Using an MVLR model, missed clinical follow-up visits remained independently associated with increased recurrence rates.

LEVEL OF EVIDENCE

Level 2-retrospective, prognostic study.

The Efficacy of the Ponseti Method in the Management of Clubfoot: A Systematic Review

Clubfoot is a congenital abnormality of the lower extremities, and it may be unilateral or bilateral. Left untreated, it may lead to issues with walking. Additionally, inappropriate treatment or the lack of treatment can result in functional damage. The goal of clubfoot treatment is to correct the deformities of the involved components. The Ponseti method has been regarded as the gold standard for the treatment of clubfoot as it is safe and effective. In this review, we aimed to assess the success of the Ponseti method in the treatment of clubfoot by reviewing the previous studies on this subject. We searched electronic databases, including PubMed, Scopus, Science Direct, and Google Scholar, for relevant articles spanning the period from 2018 to 2023. The keywords used in the search were "Ponseti method, Treatment, Outcomes, Success, Relapse, Failure, and Rates." The inclusion criteria were original articles in English on clubfoot patients treated with the Ponseti method. While our search yielded a total of 1,037 articles, only nine were deemed eligible for analysis based on the inclusion criteria. The articles involved a total of 537 feet of 358 patients and the age of the patients ranged from one day to five years. The success rate ranged between 55% and 100%, and the relapse rate ranged between 3.2% and 34.2%. Based on our findings, the Ponseti method has a high success rate in the treatment of idiopathic clubfoot, and hence it is an excellent conservative method of treatment. However, there are additional factors that may affect the treatment outcomes, which need to be taken into account.

Barriers and facilitators to lower extremity orthotic compliance in the pediatric population: A scoping review of the literature

Despite the purported benefits of lower extremity orthotics in the literature, pediatric compliance rates remain low. This scoping review synthesized the available literature regarding barriers and facilitators to lower extremity orthotic compliance in the pediatric population using the framework of the International Classification of Functioning, Disability and Health: Children and Youth (ICF). A comprehensive search of MEDLINE, EMBASE, and CINAHL was conducted on May 11, 2021, and of PsycInfo on May 12, 2021. Article reference lists and gray literature were also searched. A total of 81 articles were included. Factors described in at least four articles were labeled as universal barriers or facilitators. In the International Classification of Functioning, Disability and Health: Children and Youth domain of Body Functions/Body Structures, universal barriers were present in the global mental functions, experience of self and time, sensory functions, function of joints and bones, and structures related to the skin subcategories, with no universal facilitators identified. For the Activity Limitations/Participation Restrictions domain, one universal facilitator was identified in the mobility subcategory. In the Environmental Contextual Factors domain, universal barriers were found in the attitudes of immediate and extended family and societal attitude subcategories, with both universal barriers and facilitators found in support & relationships: immediate and extended family, support and relationships: health professionals, services, systems, and policies, and products and technology. The reviewed literature strongly emphasizes the importance of proper orthotic fit and comfort, and the child's experience of self, for lower extremity orthotic compliance, along with multiple environmental factors.

Experience with accelerated ponseti technique for treatment of idiopathic clubfoot in a regional orthopaedic hospital in Nigeria

Introduction

Idiopathic talipes equinovarus (ITEV) 'aka clubfoot' is the most common foot deformity in children. Ponseti technique had been accepted as a standard method for correction. The traditional Ponseti technique for correction is well known. Accelerated Ponseti technique is said to offer some advantages over the standard technique. The aim of this study was to determine and document the efficiency and success rate of accelerated Ponseti technique.

Methods

This was a prospective interventional study which lasted 26 months from February 2017 to April 2019. Twenty-eight patients with 42 feets who met the inclusion criteria were recruited. They had serial manipulation and casting twice every week till percutaneous tenotomy was done as indicated. Final cast usually applied after tenotomy and left for 3weeks. Each patient was followed up for a year corresponding to 9 months after the commencement of night bracing. Data were analysed using SPSS version 20.

Results

The mean age was 8.1 months with a range of 1-36 months. The mean Pirani score recorded was 4.4, while the mean number of casting sessions was 3.6 and the mean duration of treatment was 12.4 days. The tenotomy rate recorded was 42.9%. Pre-bracing assessment of Pirani score, passive ankle dorsiflexion and foot abduction done and repeated after a year revealed optimal correction. The relapsed rate at 1 year was 4.8%. The only complication observed was pressure sore in a patient.

Conclusion

The accelerated Ponseti technique is an efficient method of treatment of ITEV in a much shorter time with a higher success rate. It facilitates compliance with treatment.

Effectiveness of the Ponseti Method in the Treatment of Clubfoot: A Systematic Review

Clubfoot is a common congenital deformity of the lower limbs. It should be treated as soon as possible so that its correction is more easily achieved. The objective of this systematic review was to assess the effectiveness of the Ponseti method in the treatment of clubfoot. A bibliographic search was carried out in different databases, including PubMed and SciELO. Filters such as full text and randomized controlled trial were selected to find those articles that best matched our search. Among the results, we selected the ones that interested us, and the rest were discarded, either because they did not meet the requirements for our work or because they were repeated. In total, we collected 19 articles, but after using the critical evaluation instrument CASPe, 7 of them were eliminated, leaving us with a total of 12 articles for our systematic review. After analyzing the results obtained in the selected articles, we concluded that the Ponseti method is effective in the treatment of clubfoot, presenting a high success rate.

Common Errors in the Management of Idiopathic Clubfeet Using the Ponseti Method: A Review of the Literature

Congenital talipes equinovarus is one of the most prevalent birth defects, affecting approximately 0.6 to 1.5 children per 1000 live births. Currently, the Ponseti method is the gold-standard treatment for idiopathic clubfeet, with good results reported globally. This literature review focuses on common errors encountered during different stages of the management of idiopathic clubfeet, namely diagnosis, manipulation, serial casting, Achilles tenotomy, and bracing. The purpose is to update clinicians and provide broad guidelines that can be followed to avoid and manage these errors to optimize short- and long-term outcomes of treatment of idiopathic clubfeet using the Ponseti method. A literature search was performed using the following keywords: "Idiopathic Clubfoot" (All Fields) AND "Management" OR "Outcomes" (All Fields). Databases searched included PubMed, EMBASE, Cochrane Library, Google Scholar, and SCOPUS (age range: 0-12 months). A full-text review of these articles was then performed looking for "complications" or "errors" reported during the treatment process. A total of 61 articles were included in the final review: 28 from PubMed, 8 from EMBASE, 17 from Google Scholar, 2 from Cochrane Library, and 6 from SCOPUS. We then grouped the errors encountered during the treatment process under the different stages of the treatment protocol (diagnosis, manipulation and casting, tenotomy, and bracing) to facilitate discussion and highlight solutions. While the Ponseti method is currently the gold standard in clubfoot treatment, its precise and intensive nature can present clinicians, health care providers, and patients with potential problems if proper diligence and attention to detail is lacking. The purpose of this paper is to highlight common mistakes made throughout the Ponseti treatment protocol from diagnosis to bracing to optimize care for these patients.

Diagnosis and Treatment of Idiopathic Congenital Clubfoot

Idiopathic congenital clubfoot is the most common serious musculoskeletal birth defect in the United States and the world. The natural history of the deformity is to persist into adult life with a significant decrease in function and quality of life. The Ponseti method (serial casting, Achilles tenotomy, and bracing of the clubfoot) has become the most effective and accepted treatment of children born with clubfoot worldwide. The treatment is successful, particularly when the Ponseti-trained practitioner (often a pediatric orthopedic surgeon), the primary care clinician, and the family work together to facilitate success. An important factor in the ultimate success of the Ponseti method is parental understanding of the bracing phase. There is a very high rate of recurrent deformity when bracing is not done properly or is stopped prematurely. The importance of positive education and support for the parents to complete the entire treatment protocol cannot be overstated. The goal of treatment is a deformity-free, functional, comfortable foot. Ponseti clubfoot programs have been launched in most countries throughout the world, including many countries with limited resources. Ultimately, the goal is that every infant born with a clubfoot will have access to care with the Ponseti method. This clinical report is intended for medical practitioners who are involved in the care of pediatric patients with clubfoot. Understanding the standard of care will help these practitioners to care for patients and their families.

Evaluation of results of ponseti technique in idiopathic clubfoot using clinical evaluation and radiological assessment

Background:

Congenital clubfoot (congenital talipes equinovarus) occurs in approximately one in 1000 live births and is one of the most common congenital birth defects. The Ponseti method is at present a well-established method of treatment for idiopathic clubfoot deformities.

Aim:

The aim of the present study was to evaluate the results of serial casting in clubfoot deformity with Ponseti method on the basis of Pirani's scoring and radiological findings before and after completion of treatment.

Materials and Methods:

A total of 30 patients were enrolled in the study and were treated with Ponseti's casting after grading the severity of deformity clinically by Pirani's scoring and radiological assessment by calculating the talo-first metatarsal angle in anteroposterior (AP) view and talocalcaneal angle in AP and lateral views. The same clinical and radiological assessment was done at the end of treatment before putting a patient on foot abduction orthosis (FAO).

Results:

The average number of casts applied before full correction was 5.56 (range: 5–8). The average duration of treatment was about 6.65 weeks before the patient was put on FAO. Pirani score significantly improved from an average of 5.50 (range: 4–6) on presentation to 0.24 (range: 0–2) after correction of deformity.

Conclusion:

The Ponseti method is an excellent method for the correction of all four deformities associated with congenital idiopathic clubfoot, and we found that the addition of radiographic to clinical evaluation helps in the better assessment of correction. It provides statistically significant results both clinically as measured by Pirani severity score and radiologically assessed by talocalcaneal and talo-first metatarsal angle.

The Influence of Achilles Tenotomy and Compliance with Foot Abduction Orthosis on the Relapse Rate of Ponseti Treatment for Idiopathic Clubfoot: A Regional Study

The Ponseti method for treating idiopathic clubfoot is based on gradual manipulations and corrective plaster castings followed by a years-long period of use of a foot orthosis. The role of surgery is limited. The factors that may affect outcome and their influence are subject of controversy. The aim of the study is to systematically and objectively evaluate the results of Ponseti treatment in our region of Southern Israel and focus on the role of the Achilles tenotomy and compliance to foot orthosis as factors that may influence outcome. The use of Ponseti method was retrospectively studied (level of evidence IV) by searching computerized medical files and clinical photos. The severity of deformity was evaluated by Dimeglio score (D-score) at baseline and at last examination. During 2006-2014, 57 children with idiopathic clubfoot (total 90 feet) were enrolled. An Achilles tenotomy was performed in 55/90 (61.1%) of the feet. If the D-score was 15 or higher there was a 20% increase in the incidence of Achilles tenotomy. The parental compliance had a weak protective effect against relapse. The treatment of idiopathic clubfoot by the Ponseti method was successful and reliable, proving efficiency and universality of the method. A dominant predictor for relapse was not seen. An incidental observation was that extended time in cast may buffer the adverse effects of low compliance rate. Although the initial severity, or compliance to braces are important, there may be other factors that affect the outcome such as, accuracy of the casting technique, time in the cast, access to a dedicated clubfoot clinic, cooperation with nurses and pediatricians, economic status that allows purchase of new generation of braces, cultural perception, and education level of the patient population are some examples.

Infrared Thermal Imaging for Evaluation of Clubfoot After the Ponseti Casting Method-An Exploratory Study

Background: Conservative treatment, Ponseti method, has been considered as a standard method to correct the clubfoot deformity among Orthopedic society. Although the result of conservative methods have been reported with higher success rates than surgical methods, many more problems have been reported due to improper casting, casting pressure or bracing discomfort. Nowadays, infrared thermography (IRT) is widely used as a diagnostic tool to assess musculoskeletal disorders or injuries by detecting temperature abnormalities. Similarly, the foot skin temperature evaluation can be added along with the current subjective evaluation to predict if there is any casting pressure, excessive manipulation, or overcorrections of the foot, and other bracing pressure-related complications. Purpose: The main purpose of this study was to explore the foot skin temperature changes before and after using of manipulation and weekly castings. Methods: This is an explorative study design. Infrared Thermography (IRT), E33 FLIR thermal imaging camera model, was used to collect the thermal images of the clubfoot before and after casting intervention. A total of 120 thermal images (Medial region of the foot-24, Lateral side of the foot-24, Dorsal side of the foot-24, Plantar side of the foot-24, and Heel area of the foot-24) were collected from the selected regions of the clubfoot. Results: The results of univariate statistical analysis showed that significant temperature changes in some regions of the foot after casting, especially, at the 2nd (M = 32.05°C, SD = 0.77, p = 0.05), 3rd (M = 31.61, SD = 1.11; 95% CI: 31.27-31.96; p = 0.00), and 6th week of evaluation on the lateral side of the foot (M = 31.15°C, SD = 1.59; 95% CI: 30.75-31.54, p = 0.000). There was no significant temperature changes throughout the weekly casting in the medial side of the foot. In the heel side of the foot, significant temperature changes were noticed after the third and fourth weeks of casting. Conclusion: This study found that a decreased foot skin temperature on the dorsal and lateral side of the foot at the 6th week of thermography evaluation. The finding of this study suggest that the infrared thermography (IRT) might be useful as an adjunct assessment tool to evaluate the thermophysiological changes, which can be used to predict the complications caused by improper casting, over manipulative or stretching and casting-pressure related complications.

Relapse Rates in Patients with Clubfoot Treated Using the Ponseti Method Increase with Time: A Systematic Review

BACKGROUND

The Ponseti method is the preferred technique to manage idiopathic clubfoot deformity; however, there is no consensus on the expected relapse rate or the percentage of patients who will ultimately require a corrective surgical procedure. The objective of the present systematic review was to determine how reported rates of relapsed deformity and rates of a secondary surgical procedure are influenced by each study's length of follow-up.

METHODS

A comprehensive literature search using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines was performed to identify relevant articles. The definition of relapse, the percentage of patients who relapsed, the percentage of feet that required a surgical procedure, and the mean duration of follow-up of each study were extracted. Pearson correlations were performed to determine associations among the following variables: mean follow-up duration, percentage of patients who relapsed, percentage of feet that required a joint-sparing surgical procedure, and percentage of feet that required a joint-invasive surgical procedure. Logarithmic curve fit regressions were used to model the relapse rate, the rate of joint-sparing surgical procedures, and the rate of joint-invasive surgical procedures as a function of follow-up time.

RESULTS

Forty-six studies met the inclusion criteria. Four distinct definitions of relapse were identified. The reported relapse rates varied from 3.7% to 67.3% of patients. The mean duration of follow-up was strongly correlated with the relapse rate (Pearson correlation coefficient = 0.44; p < 0.01) and the percentage of feet that required a joint-sparing surgical procedure (Pearson correlation coefficient = 0.59; p < 0.01). Studies with longer follow-up showed significantly larger percentages of relapse and joint-sparing surgical procedures than studies with shorter follow-up (p < 0.05).

CONCLUSIONS

Relapses have been reported to occur at as late as 10 years of age; however, very few studies follow patients for at least 8 years. Notwithstanding that, the results indicated that the rate of relapse and percentage of feet requiring a joint-sparing surgical procedure increased as the duration of follow-up increased. Longer-term follow-up studies are required to accurately predict the ultimate risk of relapsed deformity. Patients and their parents should be aware of the possibility of relapse during middle and late childhood, and, thus, follow-up of these patients until skeletal maturity may be warranted.

LEVEL OF EVIDENCE

Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.

Suture Button Technique for Tibialis Anterior Tendon Transfer for the Treatment of Residual Clubfoot

BACKGROUND

The Ponseti method has revolutionized the treatment of idiopathic clubfoot, but recurrence remains problematic. Dynamic supination is a common cause of recurrence, and the standard treatment is tibialis anterior tendon transfer using an external button. Although safe and effective, the placement of the button on the sole creates a pressure point, which can lead to skin ulceration. In our institution, a suture button has been used for the tibialis anterior tendon transfer and we report our results here.

METHODS

Two senior authors' case logs were retrospectively reviewed to identify 23 patients (34 feet) for tibialis anterior tendon transfer using a suture button. Complications and additional operative procedures were assessed by reviewing operative notes, follow-up visit clinic notes, and radiographs. The mean age of the patients was 6 years 2 months (SD 40 months) and the average follow-up duration was 67.1 weeks (SD 72 weeks).

RESULTS

There were 5 complications (14.7%). Recurrence occurred bilaterally in 1 patient (5.9%) but did not require reoperation. Other complications included a cast-related pressure sore (2.9%) and an infection (2.9%) requiring irrigation with debridement along with hardware removal.

CONCLUSIONS

Tibialis anterior tendon transfer using a suture button was a safe procedure with theoretical advantage of providing stronger fixation and reducing the risk of skin pressure necrosis compared to the standard external button technique. We believe a suture button could allow earlier rehabilitation and may afford stronger ankle eversion. Prospective studies are required to compare the differences in functional outcomes between the procedures.

LEVEL OF EVIDENCE

Level IV, case series, therapeutic study.

Early Radiographic Changes in the Lateral Talocalcaneal Angle Following Achilles Tenotomy in Children With Idiopathic Clubfoot

BACKGROUND

Percutaneous Achilles tenotomy (PAT) is an important component of the Ponseti method and is performed in 85% to 90% of patients. However, there is a lack of objective data assessing early radiographic changes in children undergoing PAT.

METHODS

Forty-nine patients with idiopathic clubfoot treated by Ponseti casting were prospectively enrolled between October 2017 and October 2018. Preoperative and postoperative ankle dorsiflexion (pre-ADF^max, post-ADF^max) and lateral talocalcaneal angle (pre-LTCA^max, post-LTCA^max) values with the ankle in maximal dorsiflexion as well as postoperative LTCA values with the ankle in the neutral position (post-LTCA^neutral) were measured. The relationship between the preoperative and postoperative ADF and LTCA values was studied using Pearson or Spearman correlation coefficients. Forty-nine patients (72 feet) were included; the mean age at initial treatment was 32.2 ± 24.1 days.

RESULTS

Post-LTCA^max improved significantly from 18.6 ± 9.2 degrees to 25.1 ± 10.5 degrees (P < .0001). Pre-ADF and pre-LTCA^max showed a positive correlation in both the less than 28-day group (r = 0.42; P = .015) and the Dimeglio III group (r = 0.29; P = .035). However, post-ADF and post-LTCA^max showed a positive correlation in the Dimeglio III group (r = 0.30; P = .028). The degree of improvement in post-LCTA^max in the Dimeglio III group was similar to that in the Dimeglio IV group (P = .28).

CONCLUSION

The LTCA increased immediately after PAT in clubfoot, although the improvement seemed to be unrelated to the severity of the disease. PAT led to an increase in both ADF and the LTCA, and it contributed to the improvements in subtalar joint motion and alignment.

LEVEL OF EVIDENCE

Level III, comparative study.

Incidence and risk factors for iatrogenic distal tibia/fibula fracture during Ponseti technique of clubfoot treatment

The incidence and risk factors of distal tibia/fibula fracture, an uncommon complication during Ponseti manipulation, are unknown. We evaluated 222 virgin clubfeet of patients aged less than 3 years for fractures of distal tibia/fibula. Incidence rate was found to be 1.3% per year. Associated risk factors were identified as neglected, syndromic clubfeet, feet requiring greater than 10 casts, post-tenotomy dorsiflexion less than 10° and casting by physician with less than 3 years of casting experience, with odds ratios of 14, 28, 4.9, 3.7 and 3.4, respectively. Most of these fractures healed without consequences; however, it is still advisable not to forcefully dorsiflex while casting, which may result in the fracture of distal tibia/fibula.

A polyaxial fixation brace for the treatment of idiopathic congenital talipes equinovarus in newborns

BACKGROUND

Treatment of idiopathic congenital talipes equinovarus (CTEV) is challenging for pediatric orthopedic surgeons. The Ponseti method is an effective protocol for treatment due to its technique of manipulation, casting, and limited surgery. Plaster casting is an essential component of the Ponseti method. In this report, we describe a new brace that was developed for use in the treatment of clubfoot in newborns instead of a plaster cast.

METHODS

This retrospective study was performed in two orthopedic medical centers. Between January 2011 and October 2013, 89 newborns with CTEV (131 ft) underwent corrective treatment using fixation braces in the experiment group (E-group) in our hospital, and 107 newborns with CTEV (141 ft) underwent plaster casting in the control group (C-group) in another medical center. All patients were treated according to the Ponseti method after the application of the inclusion and exclusion criteria. Plaster casts were applied to patients in the C-group. The patients in the E-group received the custom-made polyaxial fixation braces instead of plaster casts. Prospective follow-up was performed for a mean duration of 36 months. The efficacy of the treatment was assessed using Pirani's scoring system. Chi-squared and independent t tests were used for statistical analyses.

RESULTS

In the E-group, 85 patients (125 ft) achieved good appearance within 3 months of treatment initiation (average, 1.7 months). Four patients (6 ft) required percutaneous Achilles tenotomy. Seven patients developed sores during treatment because of improper brace application, but all sores healed without scarring with timely treatment. In the C-group, 96 patients (123 ft) achieved good appearance within 3 months of treatment initiation (average, 1.6 months). Eleven patients (18 ft) required percutaneous Achilles tenotomy. Twenty-one feet developed sores during treatment because of plaster cast pressure on the dorsum of the feet. Sixteen sores healed without scarring with timely treatment, and 5 ft had obvious scars. The overall mean Pirani scores 1 year after treatment were 0.26 ± 0.06 in the E-group and 0.25 ± 0.03 in the C-group, and the Pirani scores 3 years after treatment were 0.23 ± 0.05 in the E-group and 0.22 ± 0.03 in the C-group. There were significant differences in the percutaneous Achilles tenotomy and skin sores but no significant difference in the Pirani scores between these two groups.

CONCLUSIONS

Our results showed that the new polyaxial fixation brace used in this study was an effective tool for the corrective treatment of CTEV in newborns. We propose the use of this brace as an alternative treatment for newborns.

Acute Rupture of Achilles Tendon in an Adolescent with a History of Ponseti Casting and Achilles Tenotomy: A Case Report

CASE

We present the case of a 15-year-old girl who has a history of Ponseti casting followed by Achilles tenotomies for congenital clubfeet as an infant and subsequently suffered an acute traumatic midsubstance Achilles tendon rupture on the left and midsubstance Achilles tendinosis on the right.

CONCLUSIONS

Traumatic pediatric Achilles ruptures are rare. There are no prior reported cases in patients with a history of Achilles tenotomy, despite it being a described potential complication. This case highlights the potential for an Achilles rupture years after tenotomy and presents surgical repair as a satisfactory treatment option for Achilles ruptures in adolescents.

Management of Clubfoot Relapses With the Ponseti Method: Results of a Survey of the POSNA Members

BACKGROUND

Despite the high rate of initial success using the Ponseti method to manage idiopathic clubfoot deformity, relapse continues to be a problem. We surveyed the Pediatric Orthopedic Society of North America (POSNA) members about their experience with relapsed deformity following the initial correction of clubfeet.

METHODS

We created a survey to focus on the management of clubfeet after initial correction of deformity. The survey included questions on postcorrective bracing, clinical findings used to identify relapse, the observed frequency of relapsed deformity, and how relapses are managed. The questionnaire was approved by the POSNA Evidence Based Committee and was sent electronically to all POSNA members.

RESULTS

We received responses from 321 members (26%). Of those, 94% were fellowship trained in pediatric orthopaedics. The Ponseti method was used by 98% of respondents. The Mitchell-Ponseti orthosis was most commonly used (51%), followed by the Denis-Browne brace (25%). The duration of bracing used varied among members with 23% recommending only 2 years, 33% recommending 3 years, and 34% recommending 4 years. A tight heel cord was felt to be the first sign of relapse by 59% of respondents, and dynamic supination by 30%. The rate of relapse was observed to be <10% by 22% of the respondents, 10% to 20% by 52%, and 20% to 40% by 25%. Manipulation and cast treatment alone (55%) and cast treatment with tenotomy (23%) were reported as the 2 most common initial treatment approaches for a relapsed deformity. Cast treatment to correct relapsed deformity before tibialis anterior tendon transfer was reported by 62% of respondents. Heel cord tenotomy (75%) and posterior capsular release (43%) were the 2 most common procedures used in addition to tibialis anterior tendon transfer for the treatment of clubfoot relapse.

CONCLUSION

This study highlights the wide variation with which clubfoot relapses are evaluated and treated among the POSNA membership with differences in the recommended duration of bracing, identification of relapses, and their management. These wide differences highlight the need for future research and educational programs to inform and standardize the management of clubfoot using the Ponseti Method.

LEVEL OF EVIDENCE

Not applicable.

Prognosticating Factors of Relapse in Clubfoot Management by Ponseti Method

BACKGROUND

It is challenging that some Ponseti method corrected clubfeet have a tendency to relapse. Controversies remain as to the implication of initial severity, representing the deformity degree, as well as number of casts needed, representing the treatment process, in predicting relapse. However, no study has been reported to take these 2 parameters into comprehensive consideration for outcome measurement. The purpose of this study is to investigate the correlation between the initial Pirani score and the number of casts required to correct the deformity in our series; to evaluate noncompliance as a risk factor of the deformity recurrence in Ponseti treatment; to test the validity and predictive value of a new proposed parameter, ratio of correction improvement (RCI) which is indicated by the initial Pirani scores divided by the number of casts.

METHODS

A total of 116 consecutive patients with 172 idiopathic clubfeet managed by Ponseti method were followed prospectively for a minimum of 2 years from the start of brace wearing. RCI value and the other clinical parameters were studied in relation to the risk of relapse by using multivariate logistic regression analysis modeling.

RESULTS

A positive correlation between the initial Pirani score and the number of casts required to correct the deformity was found in our series (r=0.67, P<0.01). There were 45 patients (39%) with brace noncompliance. The relapse rate was 49% (22/45). The odds ratio of relapse in noncompliant patients was 10 times more that in compliant patients (odds ratio=10.30 and 95% confidence interval, 2.69-39.42; P<0.01). The multivariate logistic regression analysis showed that there was significant association between relapse and RCI value. There were 42 patients (36%) with RCI value <1, among them, the relapse rate was 57% in 24 patients. The odds ratio of relapse in patients with RCI value <1 was 27 times more likely to relapse than those >1 (odds ratio=26.77 and 95% confidence interval, 5.70-125.72; P<0.01).

CONCLUSIONS

On the basis of the findings from our study, we propose the RCI to be a new parameter in predicting the risk of relapse in Ponseti method of clubfoot management. Early intervention is recommended to optimize the brace compliance particularly in case with lower RCI value.

LEVEL OF EVIDENCE

Level II-prognostic.

How Many Patients Who Have a Clubfoot Treated Using the Ponseti Method are Likely to Undergo a Tendon Transfer?

BACKGROUND

The Ponseti method has become the standard of care for the treatment of idiopathic clubfoot. A commonly reported problem encountered with this technique is a relapsed deformity that is sometimes treated in patients older than 2.5 years by an anterior tibial tendon transfer (ATTT) to the third cuneiform. Presently, there is insufficient information to properly counsel families whose infants are beginning Ponseti treatment on the probability of needing later tendon transfer surgery.

METHODS

All idiopathic clubfoot patients seen at the authors' institution during the study period who met the inclusion criteria and who were followed for >2.5 years were included (N=137 patients). Kaplan-Meier Survival analysis was used to determine the probability of survival without the need for ATTT surgery. In addition, the influence of patient characteristics, socioeconomic variables, and treatment variables on need for surgery was calculated.

RESULTS

On the basis of the survivorship analysis, the probability of undergoing an ATTT remained below 5% for all patients at 3 years of age, but exceeded 15% by 4 years of age, increasing steadily afterwards such that by 6 years of age, the probability of undergoing an ATTT reached 29% of all patients. Overall, controlling for all other variables in the analysis, parent-reported adherence with bracing reduced the odds of undergoing surgery by 6.88 times, compared with parent-reported nonadherence (P<0.01).

CONCLUSIONS

This is the first study to report the probability of undergoing ATTT surgery as a function of age using survivorship analysis following Ponseti clubfoot treatment. Although the overall probability reached 29% at 6 years, this was significantly reduced by compliance with bracing. This information may be useful to the clinician when counseling families at the start of treatment.

LEVEL OF EVIDENCE

Level III-theraputic.

Percutaneous achillotomy in the treatment of congenital clubfoot: should it be performed in the operating theater or the polyclinic?

Background

The aim of this study was to compare the efficacy, advantages, and complications of percutaneous achillotomy in the treatment of clubfoot with the Ponseti method when performed to two different groups under general anesthesia or polyclinic conditions with local anesthesia.

Methods

A retrospective evaluation was made of 96 patients treated for clubfoot in our clinic between January 2013 and June 2016. Fifty-seven patients were separated into two groups according to whether the achillotomy was performed in polyclinic conditions with local anesthesia or under general anesthesia following serial plaster casting with the Ponseti method.

Results

The characteristics of age distribution, mean week of tenotomy, side, and sex were similar in both groups. No statistically significant difference was determined between the two groups in respect to complication and recurrence. The durations of hospitalization-observation, separation from the mother, and fasting were found to be statistically significantly shorter in local anesthesia group.

Conclusion

Although the performance of percutaneous achillotomy with local or general anesthesia has different advantages, it can be considered that especially in centers with high patient circulation, achillotomy with local anesthesia can be more preferable to general anesthesia because it is practical and quick, does not require a long period of fasting or hospitalization, and has a similar complication rate to general anesthesia procedures.

Ponseti Technique for the Management of Congenital Talipes Equinovarus in a Rural Set-Up in India: Experience of 356 Patients

Congenital talipes equinovarus (CTEV), also known as clubfoot, is a complex congenital deformity of the foot that, left untreated, can limit a person’s mobility by making it difficult and painful to walk. Worldwide, 80% of children born with clubfoot are in low- and middle-income countries. The management of clubfoot has a long history. Non-operative management did not become popular, as an increasing number of orthopaedists started leaning towards surgical treatment. The late Dr. Ignacio Ponseti developed a method of clubfoot correction that successfully realigns clubfoot in infants without extensive and major surgery. The aim of the study was to assess the functional outcome of CTEV management by the Ponseti technique, to study the severity of CTEV deformity using the Pirani score, and to evaluate the cost-effectiveness of the technique. A total of 356 cases with 402 feet with CTEV were treated by the Ponseti method. The average age of the children and the number of casts applied before full correction were 4.03 months and 6.91, respectively. There was a good functional outcome in 95.45% of cases (score > 30) at the last follow up. The management of CTEV by the Ponseti technique provides a good functional and cosmetic outcome. In a developing country like India, this technique is a safe, easy, economical method of clubfoot management.

Treatment of syndrome-associated congenital talipes equinovarus using the Ponseti method: 4-12 years of follow-up

to evaluate the effectiveness of the Ponseti method in treating syndrome-associated (nonidiopathic) congenital talipes equinovarus. This was a retrospective consecutive review over a 12-year period in a tertiary centre of all patients with syndrome-associated talipes equinovarus treated with the Ponseti method. The primary outcome measure at the final follow-up was the functional correction of the deformity. There were 16 (28 feet) children, with an average follow-up of 7 years (range: 4-12). The average age at presentation was 6.1 (range: 2-17) weeks. Deformities were severe, with an average Pirani score of 5.0 (range: 3.0-6.0). Initial correction was achieved in all children, with an average of 6 (range: 4-9) Ponseti casts and a tendo-Achilles tenotomy performed in 21/28 (75%) feet. Satisfactory outcome at the final follow-up was achieved in 23/28 (82%) feet. The Ponseti method is an effective first-line treatment for syndrome-associated talipes equinovarus to achieve functional painless feet; children will often require more casts and have a higher risk of relapse.

The Timing and Relevance of Relapsed Deformity in Patients With Idiopathic Clubfoot

BACKGROUND

The timing and relevance of relapsed deformity after correction of idiopathic clubfoot have not been well documented.

METHODS

All patients with idiopathic clubfoot seen at the authors' institution during the study period who were followed for ≥2 years (range, 2.0 to 9.8 years) were included (N = 191). Survival analysis and multivariate regression analysis were used to analyze the data.

RESULTS

The median age at first relapse was 20 months. The probability of relapse remained approximately 30% at age 2 years and increased to 45% by 4 years and 52% by 6 years. Parent-reported adherence with bracing reduced the odds of a relapse by 15 times (P < 0.01). After an initial relapse, adherence with bracing was successful in avoiding a subsequent relapse in 68% of patients. Feet graded as very severe on the Diméglio scale were 5.75 times more likely to relapse than those graded severe and were 7.27 times more likely than those graded as moderate.

DISCUSSION

Patients whose parents reported nonadherence with bracing and patients with very severe deformities were most likely to relapse. After an initial relapse, regaining correction of the foot and resuming bracing were beneficial to avoid further relapses. These findings can be useful to clinicians in advising families regarding the prognosis of treatment.

CONCLUSIONS

The development of a relapse affects the subsequent management and outcome of clubfoot deformity. The importance of bracing should be reinforced to parents. Bracing until at least age 4 years may be beneficial. For patients whose families are especially resistant to brace use and for older patients who experience a second relapse, regaining correction of the deformity via cast treatment followed by an Achilles lengthening procedure and/or tendon transfer may be the best alternative.

Guideline on the diagnosis and treatment of primary idiopathic clubfoot

- A delegation of 6 pediatric orthopedic surgeons from the Dutch Orthopedic Association (NOV) and 2 members of the board of the Dutch Parents' Association for children with clubfoot created the guideline "The diagnosis and treatment of primary idiopathic clubfeet" between April 2011 and February 2014. The development of the guideline was supported by a professional methodologist from the Dutch Knowledge Institute of Medical Specialists. This evidence-based guideline process was new and unique, in the sense that the process was initiated by a parents' association. This is the first official guideline in pediatric orthopedics in the Netherlands, and to our knowledge it is also the first evidence-based guideline on clubfoot worldwide. The guideline was developed in accordance with the criteria of the international AGREE instrument (AGREE II: Appraisal of Guidelines for Research and Evaluation II). The scientific literature was searched and systematically analyzed. In the second phase, conclusions and recommendations in the literature were formulated according to the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) method. Recommendations were developed considering the balance of benefits and harms, the type and quality of evidence, the values and preferences of the people involved, and the costs. The guideline is a solid foundation for standardization of clubfoot treatment in the Netherlands, with a clear recommendation of the Ponseti method as the optimal method of primary clubfoot treatment. We believe that the format used in the current guideline sets a unique example for guideline development in pediatric orthopedics that may be used worldwide. Our format ensured optimal collaboration between medical specialists and parents, and resulted in an important change in clubfoot care in the Netherlands, to the benefit of medical professionals as well as parents and patients. In this way, it is possible to improve professional collaboration between medical specialists and parents, resulting in an important change in clubfoot care in the Netherlands that will benefit medical professionals, parents, and patients. The guideline was published online, and is freely available from the Dutch Guideline Database ( www.richtlijnendatabase.nl ).

Effectiveness of the Ponseti method for treating clubfoot associated with myelomeningocele: 3-9 years follow-up

Clubfoot in myelomeningocele patients is characterized by its stiffness, severe rigidity and has traditionally been treated with extensive soft-tissue release surgery with poor outcomes. We present our experience using the Ponseti method to treat clubfoot associated with myelomeningocele. This was a retrospective, consecutive review over a 10-year period in our tertiary centre. On initial presentation, patients were assessed using the Pirani scoring system and the standard Ponseti method was initiated. Our outcome measures were successful functional correction of deformity defined as achieving a plantigrade pain-free foot. Secondary outcome measures included relapse and the need for surgical procedures. A total of 11 children with 18 myelomeningocele-associated clubfeet were included, with an average follow-up duration of 4.5 years (range 3-9 years). The average age at presentation was 4.7 weeks, with an average Pirani score of 5.5. Initial correction was achieved in all children with an average of 7 (range 4-9) Ponseti casts and tendo-achilles tenotomy was performed in 17 of 18 feet (94.4%). Nine children with 15 of 18 (83.3%) myelomeningocele-associated clubfeet achieved a satisfactory outcome at the final follow-up, with functional, pain-free feet. Recurrence occurred in five of 15 (33.3%) feet, which was managed successfully with a second tendo-achilles tenotomy and further Ponseti casting. Two children three of 18 (16.7%) failed Ponseti treatment. Ponseti method is an effective first-line treatment for myelomeningocele-associated clubfoot to achieve functional painless feet; children will often require more casts and have a higher risk of relapse.

Treatment of complex idiopathic clubfoot using the modified Ponseti method: up to 11 years follow-up

Complex idiopathic clubfeet are distinguished by significant shortening, rigid equinus with a deep crease above the heel, severe plantar flexion of all metatarsals, a deep plantar crease seven across the full width of the sole of the foot and high cavus with a short and hyperextended big toe. Ponseti has devised a modified technique for treating complex clubfeet. We retrospectively identified 11 children (nine males and two females) with 17 complex clubfeet who were treated with the modified Ponseti method. Demographics, severity of clubfoot, number of casts, rate of tendoachilles tenotomy, relapse rate and their management, any additional procedures and data on complications were collected. The average follow-up was 7 years (range 3-11 years) and the average Pirani score was 5.5 (range 4.5-6.0). Initial correction was achieved in all children, with an average of 7 (range 5-10) Ponseti casts. Tendoachilles tenotomy was performed in all 17 feet (100%). The overall relapse rate was 53% (nine feet). Five relapses were managed successfully with repeat casting and four feet were subjected to a second tendoachilles tenotomy. Four feet required extensive surgical releases. A satisfactory outcome was achieved at the final follow-up in 13 of 17 feet (76.5%). Two of these children (two feet) required an additional tibialis anterior transfer. In our experience, the modified Ponseti method is an effective first-line treatment for complex idiopathic clubfoot; however, such children will often require more casts than usual and have a higher rate of tendoachilles tenotomy and a higher risk of relapse requiring surgical procedures.

LEVEL OF EVIDENCE

level IV.

The foot abduction characteristics following Steenbeek foot abduction brace

PURPOSE

We prospectively investigated the foot abduction characteristics following Steenbeek foot abduction brace (SFAB) use in corrected clubfeet. The foot abduction achievable in SFAB with knee flexion and extension was calculated to find the effectiveness and stretch exerted by it.

METHODS

Only children with corrected idiopathic clubfeet using SFAB for greater than 3 months were enrolled. The foot abduction with and without brace in knee extended and flexed positions was measured. Hip range of motion (ROM) with and without brace was also recorded.

RESULTS

The average age of 42 children ( 62 feet) was 24.25 months (range: 5-48 months). There was difference in foot abduction of 22.2° in knee extension and flexion with SFAB on. A significant change in foot stretch of 25.5° observed when the knee was moved from extended to flexed position indicated SFAB dynamicity. The SFAB was found to be an effective orthosis as it brought the corrected clubfoot into maximum abduction permissible in the foot during the phase of knee flexion. The tibial rotation accounted for a major component (61%) of apparent foot abduction with the brace on. A hip ROM of 52.2° was required for SFAB function.

CONCLUSION

SFAB is a dynamic brace that functions better in flexed knee position. It is able to induce a near equivalent actual abduction available in the foot in flexed position of knee. There is a significant component of tibial external rotation in SFAB-induced foot abduction. SFAB function is also dependent on hip mechanics.

The Problems Encountered in a CTEV Clinic: Can Better Casting and Bracing Be Accomplished?

BACKGROUND

The aim of the study is to create awareness in the practicing health care workers toward the problems encountered during casting and bracing of clubfoot following Ponseti method, and in turn avoid them.

MATERIAL AND PATIENTS

Retrospective audit of 6 years' clubfoot clinic records to analyze problems associated with Ponseti method.

OBSERVATIONS

Problems were encountered in 26 cast and in 6 braced patients. Just 4 patients out of 71 syndromic (5.6%) experienced problems during casting compared with 3% overall incidence. The common problems encountered in casted patients were moisture lesions, hematoma, dermatitis due to occlusion, pressure sores, and fractures. There was excessive bleeding in 1 patient at time of tenotomy. In braced patients, pressure sores and tenderness at tenotomy site were major problems. None of the syndromic patients experienced difficulties during bracing.

CONCLUSIONS

Problems were encountered with Ponseti method during casting, tenotomy, or bracing. Syndromic children had lesser complication rate than idiopathic clubfeet. It is important to be aware of these problems so that appropriate intervention can be done early.

LEVELS OF EVIDENCE

Level IV: Retrospective.

Pattern of Presentation and Outcome of Short-term Treatment for Idiopathic Clubfoot / CTEV with Ponseti Method

Introduction: Congenital Talipes Equinovarus (CTEV) is a common congenital foot deformity that is associated with long term disability. Treatment with Ponseti method has been successful especially for children who present early. We conducted this study to investigate the age of presentation of children and report the early outcome.

Materials: This is a retrospective study from a single institution. We included 31 patients with 45 idiopathic clubfeet and investigated problems and success rate at the end of serial casting.

Results: Mean age at presentation was 4.9 months. The mean number of casting was 6 and mean duration of casting was 2.7 months. The initial success rate of 91.1%, with four feet (8.8%) diagnosed as resistant clubfoot and eventually required soft tissue surgery. With mean follow up of 14.1 months, four other feet (8.8%) developed relapse but were treated with repeat Ponseti method.

Conclusion: Many CTEV patients present late for treatment. However, the Ponseti method remained effective with high initial success rate of 91.1%. Relapsed CTEV can still be treated successfully with repeat casting using the Ponseti method.

The Objective Measurement of Brace-Use Adherence in the Treatment of Idiopathic Clubfoot

BACKGROUND

A successful outcome for the treatment of idiopathic clubfoot is believed to require adequate adherence to brace use. Previous studies have relied on parental reporting of brace application. We used temperature sensors to determine the adherence to the bracing protocol, the accuracy of parent-reported use, and differences in adherence between patients who experienced relapse of deformity and those who did not.

METHODS

Using wireless sensors attached to brace sandals, we monitored brace wear over a 3-month period in this cross-sectional study involving 48 patients in 4 age-based groups: 6 to 12 months (Group 1), >1 to 2 years (Group 2), >2 to 3 years (Group 3), and >3 to 4 years (Group 4). Parents were blinded to the purpose of the sensors. The mean number of hours of daily brace use as measured by the sensors was compared with the physician-recommended hours and parent-reported hours of brace use.

RESULTS

Sensors were retrieved from 44 of 48 patients. Overall, the median brace use recorded by the sensors was 62% (range, 5% to 125%) of that recommended by the physician, and 77% (range, 6% to 213%) of that reported by the parents. For Groups 1 to 3, the difference between the physician-recommended and measured number of hours of daily brace use was significant (p ≤ 0.002), and the difference between the parent-reported and measured number of hours of daily brace use was also significant (p ≤ 0.013). Eight (18%) of the 44 patients who completed the study experienced relapse during the period of monitoring; most importantly, the mean number of hours of brace wear for these patients, 5 hours per day (median, 4; and standard deviation [SD], 3 hours per day) was significantly lower than the 8 hours per day for those who did not experience relapse (median, 9; and SD, 5 hours per day) (p = 0.045).

CONCLUSIONS

The present study objectively quantified the number of daily hours of post-corrective brace wear for patients with clubfoot in varying age groups and provides an estimate of the number of hours required to avoid relapse.

LEVEL OF EVIDENCE

Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.

Surgical treatment of neglected congenital idiopathic talipes equinovarus after walking age in Eritrea: an Italo-Eritrean cooperation

An Italian team of orthopaedic surgeons joined Eritrean colleagues to perform a clinical study in ambulating children affected by neglected idiopathic congenital talipes equinovarus (clubfoot). This study reports the surgical strategy as well as clinical outcomes, early complications and relapse at a mid-term follow-up. Four expeditions of 7 days were organized between 2012 and 2015 from Italy to the Halibet Hospital of Asmara in Eritrea. In each expedition were included two experienced surgeons, two assistants and one anaesthesiologist. During these expeditions, a total of 468 patients were evaluated together with Eritrean colleagues and 45 cases of neglected talipes equinovarus in ambulating children were diagnosed and selected for surgery. Follow-up range was 1-3 years. During the four expeditions, the Eritrean team of orthopaedic surgeons learned to manage most cases of neglected talipes equinovarus. No major complications were reported. Sixteen feet were considered excellent, 25 good and four poor. No overcorrections were observed. Neglected congenital talipes equinovarus is the result of delayed treatment of congenital deformity in developing countries, and its treatment often requires extensive surgery. Collaboration with foreign expert surgeons may help local doctors to learn how to treat this disease. The current study demonstrates that surgical expeditions in developing countries, when organized in collaboration with local doctors, help to manage on site this severe deformity.

Congenital idiopathic talipes equinovarus before and after walking age: observations and strategy of treatment from a series of 88 cases

BACKGROUND

We reviewed a series of newborns, toddlers and ambulating children affected by idiopathic congenital talipes equinovarus (clubfoot). Taking into account the time of diagnosis, stiffness of the deformity and walking age, nonsurgical or surgical treatment was considered. This study reports clinical outcomes, early complications and relapse at mid-term follow-up.

MATERIALS AND METHODS

Fifty-two clubfeet were diagnosed at birth, 12 in non-ambulating children aged between 4 and 12 months and 24 in ambulating children. Feet were classified using the Pirani score. Newborns and toddlers were treated with serial casting (Ponseti); however, toddlers also underwent open Achilles tendon lengthening (2 feet) and posteromedial release (3 feet). In all ambulating children, surgical treatment was always performed: selective medial release combined with cuboid subtraction osteotomy (1 foot), posteromedial release (6 feet), and posteromedial release combined with cuboid subtraction osteotomy (17 feet).

RESULTS

The average follow-up was 5 years (1-6 years). In newborns treated with Ponseti, the results were excellent in 42 feet, good in 6, and poor in 4. In non-ambulating children, the results were excellent in 9 feet, and good in 3. In ambulating children, the results were excellent in 5 feet, good in 16, and poor in 3. No major complications were reported. No overcorrections were observed. The need for open surgery was higher in cases of delayed treatment. In cases of relapse, re-casting and/or more extensive surgery was considered.

CONCLUSIONS

Early treatment enables a high rate of good correction to be obtained with serial casting and limited surgery. Conversely, if the deformity is observed after walking age surgery should be considered. Serial casting in cases of late observation and relapse have demonstrated encouraging results.

LEVEL OF EVIDENCE

IV.

Congenital talipes equinovarus associated with hereditary congenital common peroneal nerve neuropathy: a literature review

We present a unique case of a congenital hereditary common peroneal nerve neuropathy with congenital idiopathic congenital talipes equinovarus that had been treated with the Ponseti method with satisfactory outcome at 5-year follow-up, along with a literature review.

The effectiveness of the Ponseti method for treating clubfoot associated with arthrogryposis: up to 8 years follow-up

PURPOSE

To evaluate the effectiveness of the Ponseti method in treating clubfoot associated with arthrogryposis.

METHODS

Retrospective consecutive review over a 10-year period in a tertiary centre of all patients with arthrogrypotic clubfoot treated with the Ponseti method. The primary outcome measure at final follow-up was the functional correction of the deformity.

RESULTS

There were ten children with 17 arthrogrypotic clubfeet, with an average follow-up of 5.8 years (range 3-8 years). The average age at presentation was 5 weeks (range 2-20 weeks). Deformities were severe, with an average Pirani score of 5.5 (range 3-6). Initial correction was achieved in all children with an average of 8 (range 4-10) Ponseti casts and a tendo-Achilles tenotomy (TAT) was performed in 94.1 %. Two-thirds of patients had a satisfactory outcome at final follow-up, with functional plantigrade, pain-free feet.

CONCLUSIONS

The Ponseti method is an effective first-line treatment for arthrogrypotic clubfeet to achieve functional plantigrade feet. Children will often require more casts and have a higher risk of relapse.

Does Strict Adherence to the Ponseti Method Improve Isolated Clubfoot Treatment Outcomes? A Two-institution Review

BACKGROUND

Despite being recognized as the gold standard in isolated clubfoot treatment, the Ponseti casting method has yielded variable results. Few studies have directly compared common predictors of treatment failure between institutions with high versus low failure rates.

QUESTIONS/PURPOSES

We asked: (1) is the provider's rigid adherence to the Ponseti method associated with a lower likelihood of unplanned clubfoot surgery, and (2) at the institution that did not adhere rigidly to Ponseti's principles, are any demographic or treatment-related factors associated with increased likelihood of unplanned clubfoot surgery?

METHODS

After institutional review board approval, a consecutive series of patients with a diagnosis of isolated clubfoot who underwent treatment between January 2003 and December 2007 were identified. At Institution 1, 91 of 133 patients met the eligibility criteria and were followed for a minimum of 2 years compared with 58 of 58 patients at Institution 2. At Institution 1, 16 providers managed care using a conservative casting approach based on the Ponseti method. However, treatment was adapted by the provider(s). At Institution 2, one orthopaedic surgeon managed care with strict adherence to the Ponseti method. Surgical indications at both institutions included the presence of a persistent equinovarus foot position while standing. A chart review was used to collect data related to proportion of patients undergoing unplanned additional treatment for deformity recurrences after Ponseti casting, demographics, and treatment patterns.

RESULTS

The proportion of subjects who underwent unplanned major surgical intervention was greater (odds ratio [OR], 51.1; 95% CI, 6.8-384.0; p < 0.001) at Institution 1 (60 of 131, 47%) compared with Institution 2 (two of 91, 2%). There was no difference (p = 0.200) in the proportion of patients who underwent additional casting, repeat tendo Achilles lengthening, and/or anterior tibialis tendon transfer only (minor recurrence) at Institution 1 (nine of 131, 7%) compared with Institution 2 (11 of 91, 13%). At Institution 1, an increase in the number of revision casts (multiple vs no casts, hazard ratio [HR] = 3.9; 95% CI, 2.0-7.6; p < 0.001) and an increase in the number of cast-related complications (multiple vs no complications, HR = 2.8; 95% CI, 1.2-6.7; p = 0.019) were associated with increased risk of major surgery in the multivariate analysis.

CONCLUSIONS

Rigid commitment to the Ponseti method in the conservative treatment of patients with isolated clubfoot was associated with a lower risk of subsequent unplanned surgical intervention. In addition, clubfoot treatment programs that use a care model that prioritizes continuity in care and dedication to the Ponseti method may decrease the proportion of patients who undergo unplanned surgical intervention.

LEVEL OF EVIDENCE

Level III, therapeutic study.

Predicting the need for surgical intervention in patients with idiopathic clubfoot

BACKGROUND

The purpose of this study was to determine the early factors associated with the need for surgical interventions in patients with idiopathic clubfoot treated with the Ponseti method.

METHODS

All patients with idiopathic clubfoot treated with Ponseti method at our institution with >3 years of follow-up were evaluated. Age at presentation, history of previous treatment, number of casts used, need for percutaneous Achilles tenotomy (PAT), age of initiation of foot abduction orthosis (FAO), compliance with FAO, and need for additional casts were recorded. Dimeglio/Bensahel and Catterall/Piriani scores were recorded at initial presentation, at initiation of FAO, at 1, 2, 3 years of follow-up, and at the most recent follow-up.

RESULTS

Since 2000, 86 patients (134 feet) had >3 years of follow-up from time of initial presentation, and 43 of these feet (32%) had undergone surgery beyond a PAT. Patients who were noncompliant with the FAO were 7.9 times more likely to need surgery than those who were compliant [confidence interval (CI), 2.8-22.0; P<0.001]. Female patients were 5.4 times more likely to need surgery than male patients (CI, 1.8-16.6; P=0.003). For every 1 point increase in Dimeglio/Bensahel score at presentation, patients were 1.3 times more likely to need surgery (CI, 1.0-1.5; P=0.033). For every 1 point increase in Dimeglio/Bensahel score at initiation of the FAO, patients were 1.5 times more likely to need surgery (1.1-2.0, P=0.005). Moreover, for each additional cast required before the initiation of the FAO, patients were 1.5 times less likely to need surgery (CI, 1.1-2.7; P=0.030). No other variable significantly contributed to predicting the need for surgery.

CONCLUSIONS

There are early factors that can be used to predict increased risk for surgical intervention in patients undergoing treatment for idiopathic clubfoot. Female patients and those patients with higher Dimeglio/Bensahel scores at presentation and at initiation of the FAO are at increased risk for needing surgical intervention. Noncompliance with the FAO is associated with the highest risk for surgical intervention.

LEVEL OF EVIDENCE

Level III.

Mid-term results of a physiotherapist-led Ponseti service for the management of non-idiopathic and idiopathic clubfoot

BACKGROUND

The Ponseti method is the preferred treatment for idiopathic clubfoot. Although popularised by orthopaedic surgeons it has expanded to physiotherapists and other health practitioners. This study reviews the results of a physiotherapist-led Ponseti service for idiopathic and non-idiopathic clubfeet and compares these results with those reported by other groups.

METHOD

A prospective cohort of clubfeet (2005-2012) with a minimum 2-year follow-up after correction was reviewed. Physiotherapists treated 91 children-41 patients (69 feet) had non-idiopathic deformities and 50 children (77 feet) were idiopathic. Objective outcomes were evaluated and compared to results from other groups managing similar patient cohorts.

RESULTS

The mean follow-up was 4.6 years (range 2-8.3 years) for both groups. The non-idiopathic group required a median of 7 casts to correct the clubfoot deformity with an 83 % tenotomy rate compared to a median of 5 casts for the idiopathic group with a 63 % tenotomy rate. Initial correction was achieved in 96 % of non-idiopathic feet and in 100 % of idiopathic feet. Recurrence requiring additional treatment was higher in the non-idiopathic group with 40 % of patients (36 % of feet) sustaining a relapse as opposed to 8 % (6 % feet) in the idiopathic group. Surgery was required in 26 % of relapsed non-idiopathic feet and 6 % of idiopathic.

CONCLUSIONS

Although Ponseti treatment was not as successful in non-idiopathic feet as in idiopathic feet, deformity correction was achieved and maintained in the mid-term for the majority of feet. These results compare favourably to other specialist orthopaedic-based services for Ponseti management of non-idiopathic clubfeet.

LEVEL OF EVIDENCE

Prognostic Level III.

A randomized clinical trial comparing reported and measured wear rates in clubfoot bracing using a novel pressure sensor

BACKGROUND

The treatment of clubfoot by the Ponseti method requires the utilization of a foot abduction orthosis (FAO) after manipulation and casting. Adherence to this protocol, specifically FAO wear rates, has been postulated to improve treatment outcomes. Our hypothesis was that caregiver-reported wear rates were significantly less than actual wear rates in these braces.

METHODS

A randomized prospective study of 67 children, aged 0 to 3 years old with idiopathic clubfoot, treated using the Ponseti technique for idiopathic clubfoot, was undertaken after IRB approval. Participants were randomized into 3 groups: a functioning pressure-based sensor (group FPS) attached to the FAO (21 patients), a nonfunctioning sensor (NFPS group) attached to the FAO (24 patients), or no sensor (NS group) (22 patients). All caregivers filled out a diary of subjective wear rates. Reported and actual wear rates were recorded as a percentage of the entire day and compared.

RESULTS

In the FPS group, the average actual wear rate for months 1, 2, and 3 were 91.7% (15 patients; 72.7% to 97.0%), 86.8% (9 patients; 60.5% to 96.3%), and 77.1% (7 patients; 52.6% to 95.8%), respectively. The average self-reported wear rate in the FPS group in months 1, 2, and 3 were 94.9% (13 patients; 93.1% to 98.7%), 95.6% (10 patients; 92.3% to 99.4%), and 94.8% (11 patients; 82.8% to 99.6%), respectively. The most predictive factor in determining a patient's decrease in the overall wear rate was a drop in the wear rate between months 1 and 2 (P<0.001). The reported wear rates were not statistically different between any of the 3 groups (P<0.01).

CONCLUSIONS

By using a novel method of pressure measurement, which documented FAO wear, we have shown a significant decline in wear rates from months 1 to 3. These actual FAO wear rates did not match their reported rates, thus putting into question previous assumptions about reported brace compliance. The largest drop in wear rates occurred from months 2 to 3. This study provides the first objective measurement of FAO brace wear in patients undergoing the Ponseti method of treatment.

LEVELS OF EVIDENCE

Level II.

Clinical outcome of posteromedial versus posteromedial-lateral release for clubfoot

Although the Ponseti serial casting method is the gold standard for the management of clubfoot, surgical correction remains the best option for resistant cases. Therefore, we compared posteromedial and posteromedial-lateral surgical approaches for the correction of resistant clubfoot. Between 2007 and 2013, 68 patients with idiopathic nonsyndromic resistant clubfoot, who were admitted to our referral institute, were enrolled in our study. The patients were divided into two groups. The patients in group 1 (33 cases of clubfoot) underwent posteromedial release with a single incision and those in group 2 (35 cases of clubfoot) underwent posteromedial-lateral release by two separate incisions. The severity of deformity was classified according to the Dimeglio classification. After the operations, all patients were followed up and surgical results as well as acute and chronic complications were evaluated. The patients were followed up for a mean of 43 months, and at the last follow-up visit, the Dimeglio scores in groups 1 and 2 were 4.8±3.8 and 3.3±2.6, respectively (P=0.04). Outcomes improved in both groups significantly. Although group 2 had more severe deformity, compared with group 1 at the baseline, the final outcome was better in this group. Heel varus and equinus was corrected more appropriately in group 2. Complications such as navicular dorsal subluxation and valgus overcorrection were less common in group 2. In cases of resistant clubfoot, it appears that a posteromedial-lateral approach with two separate incisions not only provides a better correction but is also associated with a lower complication rate in comparison with the single-incision posteromedial approach.

LEVEL OF EVIDENCE

Level III, therapeutic study.

The effect of a dedicated Ponseti service on the outcome of idiopathic clubfoot treatment

We report the effect of introducing a dedicated Ponseti service on the five-year treatment outcomes of children with idiopathic clubfoot. Between 2002 and 2004, 100 feet (66 children; 50 boys and 16 girls) were treated in a general paediatric orthopaedic clinic. Of these, 96 feet (96%) responded to initial casting, 85 requiring a tenotomy of the tendo-Achillis. Recurrent deformity occurred in 38 feet and was successfully treated in 22 by repeat casting and/or tenotomy and/or transfer of the tendon of tibialis anterior, The remaining 16 required an extensive surgical release. Between 2005 and 2006, 72 feet (53 children; 33 boys and 20 girls) were treated in a dedicated multidisciplinary Ponseti clinic. All responded to initial casting: 60 feet (83.3%) required a tenotomy of the tendo-Achillis. Recurrent deformity developed in 14, 11 of which were successfully treated by repeat casting and/or tenotomy and/or transfer of the tendon of tibialis anterior. The other three required an extensive surgical release. Statistical analysis showed that children treated in the dedicated Ponseti clinic had a lower rate of recurrence (p = 0.068) and a lower rate of surgical release (p = 0.01) than those treated in the general clinic. This study shows that a dedicated Ponseti clinic, run by a well-trained multidisciplinary team, can improve the outcome of idiopathic clubfoot deformity.

Worldwide spread of the Ponseti method for clubfoot

The Ponseti method has become the gold standard for the treatment of idiopathic clubfoot. Its safety and efficacy has been demonstrated extensively in the literature, leading to increased use around the world over the last two decades. This has been demonstrated by the increase in Ponseti related PubMed publications from many countries. We found evidence of Ponseti activity in 113 of 193 United Nations members. The contribution of many organizations which provide resources to healthcare practitioners in low and middle income countries, as well as Ponseti champions and modern communication technology, have helped to spread the Ponseti method around the world. Despite this, there are many countries where the Ponseti method is not being used, as well as many large countries in which the extent of activity is unknown. With its low rate of complication, low cost, and high effectiveness, this method has unlimited potential to treat clubfoot in both developed and undeveloped countries. Our listing of countries who have not yet shown presence of Ponseti activity will help non-governmental organizations to target those countries which still need the most help.

Clubfoot associated with preaxial polydactyly

We report on three children with bilateral, congenital clubfoot. Four of the six clubfeet were associated with preaxial polydactyly. Five of the six clubfeet were treated without extensive surgery. A plantigrade foot was achieved, even in the three clubfeet with polydactyly, using serial casting and percutaneous Achilles tenotomy. Casting was adapted according to the existing polydactyly. One case with tibial hemimelia and a complex clubfoot deformity with preaxial tarsal polydactyly required more comprehensive surgery. A foot with good weight-bearing function was also achieved in this case following resection of the accessory medial ray, including resection of the accessory tarsal bones and posterior release. Remaining limitations in mobility were ascribed to hindfoot pathologies.

Prospective evaluation of the use of Mitchell shoes and dynamic abduction brace for idiopathic clubfeet

Ponseti treatment for clubfoot has been successful, but recurrence continues to be an issue. After correction, patients are typically braced full time with a static abduction bar and shoes. Patient compliance with bracing is a modifiable risk factor for recurrence. We hypothesized that the use of Mitchell shoes and a dynamic abduction brace would increase compliance and thereby reduce the rate of recurrence. A prospective, randomized trial was carried out with consecutive patients treated for idiopathic clubfeet from 2008 to 2012. After casting and tenotomy, patients were randomized into either the dynamic or static abduction bar group. Both groups used Mitchell shoes. Patient demographics, satisfaction, and compliance were measured with self-reported questionnaires throughout follow-up. Thirty patients were followed up, with 15 in each group. Average follow-up was 18.7 months (range 3-40.7 months). Eight recurrences (26.7%) were found, with four in each group. Recurrences had a statistically significant higher number of casts and a longer follow-up time. Mean income, education level, patient-reported satisfaction and compliance, and age of caregiver tended to be lower in the recurrence group but were not statistically significant. No differences were found between the two brace types. Our study showed excellent patient satisfaction and reported compliance with Mitchell shoes and either the dynamic or static abduction bar. Close attention and careful education should be directed towards patients with known risk factors or difficult casting courses to maximize brace compliance, a modifiable risk factor for recurrence.

Manipulation and brace fixing for the treatment of congenital clubfoot in newborns and infants

Background

As one of the most common congenital deformities in children, clubfoot has long been a challenge for orthopedic surgeons. This paper describes the experience of our team with manipulation and above-the-knee brace fixation without percutaneous Achilles tenotomy for the treatment of clubfoot in newborns and infants.

Methods

In the orthopedic department of our hospital, 32 infants and newborns (56 feet) with congenital clubfoot underwent manipulation and above-the-knee brace fixation between 2008 and 2012. External rotation brace was used for 1–4 years during the night after deformity correction. Prospective follow-up for a mean duration of 29 months (range, 12–48 months) was carried out. The efficacy of the treatment was assessed by Pirani’s scoring system before and after treatment.

Results

Fifty-two feet achieved a normal appearance within 3 to 6 months (average, 4.2 months) after treatment. Two patients had skin pressure sores due to improper brace care, but these healed with no scarring after timely treatment. The mean Pirani score 1 year after treatment was 0.21 ± 0.09, whereas it was 4.93 ± 1.02 before treatment (p = 0.0078). No patient required treatment with percutaneous Achilles tenotomy.

Conclusion

The manipulation and brace fixation used in this study offer an effective method for correcting clubfoot deformity in newborns and infants. This treatment can be an alternative choice to percutaneous Achilles tenotomy.

Electronic supplementary material

The online version of this article (doi:10.1186/1471-2474-15-363) contains supplementary material, which is available to authorized users.

Evertor muscle activity as a predictor of the mid-term outcome following treatment of the idiopathic and non-idiopathic clubfoot

Previous studies have identified clinical and demographic risk factors for recurrence in the treatment of idiopathic clubfoot (congenital talipes equinovarus). Evertor muscle activity is not usually considered amongst them. This study aimed to evaluate whether recurrence could be predicted by demographic, clinical and gait parameters. From a series of 103 children with clubfeet, 67 had completed a follow-up of two years: 41 male and 26 female, 38 with idiopathic and 29 with non-idiopathic deformities. The mean age was 3.2 years (2.1 to 6.3). Primary correction was obtained in all 38 children (100%) with an idiopathic deformity, and in 26 of 29 patients (90%) with a non-idiopathic deformity. Overall, 60 children (90%) complied with the abduction brace regime. At a mean follow-up of 31.4 months (24 to 62), recurrence was noted in six children (15.8%) in the idiopathic and 14 children (48.3%) in the non-idiopathic group. Significant correlation was found between poor evertor activity and recurrence in both groups. No statistically significant relationship was found between the rate of recurrence and the severity of the initial deformity, the age at the time of treatment, the number of casts required or the compliance with the brace.

After correction of idiopathic and non-idiopathic clubfoot using the Ponseti method, only poor evertor muscle activity was statistically associated with recurrence. The identification of risk factors for recurrent deformity allows clinicians to anticipate problems and advocate early additional treatment to improve muscle balance around the ankle.

Cite this article: Bone Joint J 2014;96-B:1264–8.

Relapse of clubfoot after treatment with the Ponseti method and the function of the foot abduction orthosis

Ponseti clubfoot treatment has become more popular during the last decade because of its high initial correction rate. But the most common problem affecting the long-term successful outcome is relapse of the deformity. Non-compliance with Ponseti brace protocol is a major problem associated with relapse. Although more comfortable braces have been reported to improve the compliance, they all have the same design and no significant changes have been made to the protocols. After refinement in the Ponseti method and emphasizing the importance of brace to parents, the relapse rate has been markedly decreased. Nevertheless, there are patients who do not have any recurrence although they are not completely compliant with the brace treatment, whereas other patients have a recurrence even though they are strictly compliant with the brace treatment. The aim of this article is to review the relapse of clubfoot and the function of the brace and to develop an individualized brace protocol for each patient by analyzing the mechanism of the brace and the biomechanical properties of muscles, tendons, and ligaments.

Results of clubfoot management using the Ponseti method: do the details matter? A systematic review

BACKGROUND

Although the Ponseti method is accepted as the best choice for treatment of clubfoot, the treatment protocol is labor intensive and requires strict attention to details. Deviations in strict use of this method are likely responsible for the variations among centers in reported success rates.

QUESTIONS/PURPOSES

We wished to determine (1) to what degree the Ponseti method was followed in terms of manipulation, casting, and percutaneous Achilles tenotomy, (2) whether there was variation in the bracing type and protocol used for relapse prevention, and (3) if the same criteria were used to diagnose and manage clubfoot relapse.

METHODS

We conducted a systematic review of MEDLINE, EMBASE(TM), and the Cochrane Library. Studies were summarized according to the Preferred Reporting Items for Systematic Reviews and Meta-analyses Statement. Five hundred ninety-one records were identified with 409 remaining after deduplication, in which 278 irrelevant studies and 22 review articles were excluded. Of the remaining 109 papers, 19 met our inclusion criteria. All 19 articles were therapeutic studies of the Ponseti method.

RESULTS

The details of manipulation, casting, or percutaneous Achilles tenotomy of the Ponseti method were poorly described in 11 studies, whereas the main principles were not followed in three studies. In three studies, the brace type deviated significantly from that recommended, whereas in another three studies the bracing protocol in terms of hours of recommended use was not followed. Furthermore no unified criteria were used for judgment of compliance with brace use. The indication for recognition and management of relapse varied among studies and was different from the original description of the Ponseti method.

CONCLUSIONS

We found that the observed clinically important variation may have been the result of deviations from the details regarding manipulation, casting, percutaneous Achilles tenotomy, use of the bar-connected brace, and indication for relapse recognition and management recommended for the classic Ponseti approach to clubfoot management. We strongly recommend that clinicians follow the Ponseti method as it initially was described without deviation to optimize treatment outcomes.

Ponseti casting for club foot – above- or below-knee?

We undertook a randomised clinical trial to compare treatment times and failure rates between above- and below-knee Ponseti casting groups. Eligible children with idiopathic clubfoot, treated using the Ponseti method, were randomised to either below- or above-knee plaster of Paris casting. Outcome measures were total treatment time and the occurrence of failure, defined as two slippages or a treatment time above eight weeks.

A total of 26 children (33 feet) were entered into the trial. The above-knee group comprised 17 feet in 13 children (ten boys and three girls, median age 13 days (1 to 40)) and the below-knee group comprised 16 feet in 13 children (ten boys and three girls, median age 13 days (5 to 20)). Because of six failures (37.5%) in the below-knee group, the trial was stopped early for ethical reasons. The rate of failure was significantly higher in the below-knee group (p = 0.039). The median treatment times of six weeks in the below-knee and four weeks in the above-knee group differed significantly (p = 0.01).

This study demonstrates that the use of a below-knee plaster of Paris cast in conjunction with the Ponseti technique leads to unacceptably high failure rates and significantly longer treatment times. Therefore, this technique is not recommended.

Cite this article: Bone Joint J 2013;95-B:1570–4.

Treatment of idiopathic congenital clubfoot using the Ponseti method: ten years of experience

Objective

To evaluate outcomes of 229 idiopathic clubfeet (ICF) treated using the Ponseti method, from 2001 to 2011, comparing two groups with different follow-ups.

Method

155 patients (229 ICF) were treated separated in two groups: Group I: 72 patients (109 ICF – 47.6%) with a follow up of 62 to 128 months (mean of 85). Group II: 83 patients (120 ICF – 52.4%) with a follow up of 4 to 57 months (mean of 33.5). We have considered satisfactory outcomes for cases which correction of all deformed components, without surgery.

Results

Mean age for the initial assessment was 5.4 months in Group I and 3.2 in Group II. Satisfactory outcomes were obtained in 85.4% in Group I and 97.5% in Group II. Mean cast placements were 9.5 in Group I and 7 in Group II. 67% were submitted to percutaneous Achilles tenotomy in Group I and 65% in Group II. Deformity relapses, when using abducted braces, occurred in 41 (37.6%) feet from Group I; 11 were treated surgically. In Group II, 17 feet relapsed (14.1%); three of them were submitted to surgery.

Conclusion

The method was successful in both groups, in low number of complications. The results were statistically superior in Group II when deformity correction, cast placements, relapses and surgery indication.

Consanguineous marriage and increased risk of idiopathic congenital talipes equinovarus: a case-control study in a rural area

BACKGROUND

The purpose of this study is to evaluate if there is any relationship between consanguineous marriages and idiopathic congenital talipes equinovarus (CTEV).

METHODS

A case-control study on CTEV screening was conducted in a rural eastern city of Turkey between 2009 and 2011 and a total of 28 cases (infants with idiopathic CTEV) and 575 controls (healthy infants) were recruited. Sociodemographic status of the infants, including gestational age and birth weights, maternal characteristics and, if any, the degree of consanguinity, were recorded. As an inclusion criterion, only singleton, full-term, live births were accepted. A backward stepwise logistic regression model was used to evaluate the relationship between idiopathic CTEV and parental consanguinity. Unadjusted and adjusted odds ratios (OR) with 95% confidence interval (CI) were calculated.

RESULTS

Among maternal and infant characteristics, significant risk factors for idiopathic CTEV in the regression analysis were work status (employed), consanguineous marriage, sex (male), and gestational age (>42 wk). Babies born to first-cousin parents had >4 times the risk of idiopathic CTEV [OR, 4.138, (95% CI, 1.484, 11.538)] and the risk for those born to distant relatives was 2.9 times higher [OR, 2.941, (95% CI, 1.070, 8.087)] than for children of unrelated parents.

CONCLUSIONS

Consanguineous marriage was significantly associated with an increased risk of idiopathic CTEV. This association remained significant even after adjusting for potential confounding variables. To obtain more accurate results, a population-based screening study with an increased number of cases and controls should be performed in future studies.

LEVEL OF EVIDENCE

Case-control study investigating the effect of a patient characteristic on the outcome of disease (level-III).