Motor abilities in 182 children treated for idiopathic clubfoot: a comparison between the traditional and the Ponseti method and controls

Clubfoot patients show more anterior-posterior displacement during one-leg-standing and less ankle power and plantarflexor moment during one-leg-hopping than typically developing children

BACKGROUND

Clubfoot patients show good-to-excellent foot correction after the Ponseti method. Nevertheless, underlying functional problems that limit motor abilities such as one-leg-standing and one-leg-hopping still persist. These restrictions have been proposed to arise due to problems with maintaining balance and the limited force-generating capacity of clubfoot patients. More insight is needed to understand the underlying limiting factors to improve overall motor ability in clubfoot patients.

RESEARCH QUESTION

The aim of this study was to determine the differences between clubfoot patients and typically developing children (TDC) in force and balance parameters during walking, one-leg-standing and hopping.

METHODS

Three-dimensional motion analysis was performed in 19 TDC and 16 idiopathic Ponseti-treated clubfoot patients between 5-9 years old. Kinematic and kinetic parameters were calculated during walking and one-leg-hopping. To describe the balance parameters, center of pressure (CoP) data was assessed during walking, one-leg-hopping and one-leg-standing. Mean group values were calculated and compared using nonparametric statistical tests. A general linear model with repeated measures was used to determine which activity showed the largest group differences.

RESULTS

Clubfoot patients showed lower peak plantarflexor moment and peak ankle power absorption and generation during one-leg-hopping compared to TDC. Furthermore, clubfoot patients showed a lower hop length and velocity than TDC. The difference in peak plantarflexor moment and ankle power between the study groups was larger during one-leg-hopping than during walking. Finally, clubfoot patients showed a higher anterior-posterior CoP range during one-leg-standing.

SIGNIFICANCE

Deviations in force parameters seemed to limit one-leg-hopping in clubfoot patients, and impaired anterior-posterior static balance was thought to be the underlying cause of problems with one-leg-standing. Furthermore, one-leg-hopping was more sensitive to distinguish between clubfoot patients and TDC than walking. Individualized physiotherapy targeting static balance and force parameters, with extra emphasis on including eccentric contractions, might improve the overall motor abilities of clubfoot patients.

Prospective, Randomized Ponseti Treatment for Clubfoot: Orthopaedic Surgeons Versus Physical Therapists

BACKGROUND

Clubfoot is a common congenital foot deformity in children. The Ponseti method of serial casting has become the standard of care in clubfoot treatment. Clubfoot casting is performed in many centers by both orthopaedic surgeons and physical therapists (PTs); however, direct comparison of outcomes and complications of this treatment between these providers is limited. This study prospectively compared the outcomes of patients with clubfoot treated by these 2 groups of specialists.

METHODS

Between January 2010 and December 2014, all patients under the age of 12 months with a diagnosis of clubfoot were included. Patients were randomized to an orthopaedic surgeon (MD) group or a PT group for weekly serial casting. Main outcome measures included the number of casts required to achieve correction, clinical recurrence of the deformity, and the need for additional surgical intervention.

RESULTS

One hundred twenty-six infants were included in the study. Patient demographics and characteristics (sex, race, family history of clubfoot, laterality, and severity of deformity) were similar between treatment groups, with the only significant difference being the mean age of entry into the study (5.2 weeks in the MD group and 9.2 weeks in the PT group, P=0.01). Mean length of follow-up was 2.6 years. The number of casts required trended to a lower number in the MD group. There was no significant difference in the rates of clinical recurrence or additional surgical intervention between groups.

CONCLUSIONS

Ponseti casting for treatment of clubfoot performed by orthopaedic surgeons and PTs results in equivalent outcomes without any difference in complications. Although the number of casts required trended to a lower number in the MD group, this likely did not result in any clinical significance, as the difference in cast number equaled <1 week's difference in the overall duration of serial casting.

LEVEL OF EVIDENCE

Level I-therapeutic.

Participation and Motor Abilities in Children Aged 5 to 9 Years With Idiopathic Clubfeet After Treatment With the Ponseti Method

BACKGROUND

Functioning in children consists of different aspects, including their ability to execute activities and participate in life situations. Several studies on children with clubfeet showed limited motor abilities and walking capacity compared with healthy control children, while other studies showed comparable athletic abilities and gross motor development. Although participation in activities of daily life plays an important role in the development of children, this has not yet been investigated in children with clubfeet. The study aims to determine the level of parents' perceived motor ability and participation in Ponseti-treated children with clubfeet compared with age-matched healthy controls.

METHODS

Parents of children aged 5 to 9 years with and without idiopathic Ponseti-treated clubfeet were asked to complete an online questionnaire about their child's motor abilities and participation level using the Dutch version of the Assessment of Life Habits for Children (LIFE-H) version 3 to assess participation and the Dutch Movement Assessment Battery for Children-2 Checklist (MABC-2 Checklist) to assess motor abilities. Statistical analysis focused on differences between groups and the relationship between motor abilities and level of participation.

RESULTS

Questionnaires of 86 children with clubfeet (mean age 7.1, 73% boys) and 62 controls (age 6.7, 53% boys) were analyzed. Despite a large variation, results showed no significant differences between groups on the total scores of the LIFE-H and the MABC-2 Checklist. Children with clubfeet, however, scored lower on Mobility and better on the categories Communication and Responsibility of the LIFE-H. Furthermore, children with clubfeet showed lower scores on the MABC-2 Checklist subscale "movement in a static and/or predictable environment." High levels of the parents' perceived participation correlate with good results, as perceived by the parents, in motor ability.

CONCLUSIONS

Although differences on some aspects of motor ability and participation existed, children with clubfeet in general showed high levels of parents' perceived motor ability and participation. High levels of participation correlated with good results in motor ability.

LEVEL OF EVIDENCE

Level II.

The Impact of Living with Clubfoot on Children and Their Families: Perspectives from Two Cultural Environments

Purpose

To study the physical, emotional and social impact of clubfoot on the lives of affected children and their families.

Methods

A purposive sample of children with treated idiopathic clubfoot and their parents was recruited from two geographical locations-the United Kingdom (UK) and India. Children were divided into age groups of 5-7 and 8-11 years. Questionnaires were administered separately to children and parents; the former comprised multiple-choice questions scored using an 'emoji' system, and the latter included open-ended questions divided into pre-defined themes of daily limitations, social life, general health, emotional barriers and family impact.

Results

Thirty-four children and parents participated from UK; 96 children and parents participated from India. The majority of children (> 80%) reported no problems in daily activities, although 32.8% reported having pain. Difficulty finding appropriate footwear and limitation in sports were more common among UK children, whereas difficulty in squatting was more problematic for Indian children. Self and emotional perceptions regarding their appearance/condition were lower among older as compared to younger children in both countries. Parents' responses mirrored those of children; additionally they reported emotional and financial difficulties during initial treatment phase, and ongoing concerns about the future during the maintenance phase.

Conclusion

Treated clubfoot continues to impact the lives of affected children and families. Perceptions of the condition and its impact vary between population groups; this needs to be appreciated when collecting and analysing outcomes.

What is New in Pediatric Orthopaedic Foot and Ankle

BACKGROUND

This paper aims to report on the last 5 years of relevant research on pediatric foot and ankle pathology with specific focus on clubfoot, congenital vertical talus, toe walking, tarsal coalitions, pes planovalgus with or without accessory navicular, foot and ankle trauma, and talar dome osteochondritis dessicans.

METHODS

The Browzine platform was used to review the table of contents for all papers published in the following target journals related to the treatment of pediatric foot and ankle conditions. Search results were further refined to include clinical trials and randomized controlled trials published from March 1, 2015 to November 15, 2021.

RESULTS

A total of 73 papers were selected for review based on new findings and significant contributions in treatment of clubfoot, congenital vertical talus, toe walking, tarsal coalitions, pes planovalgus with or without accessory navicular, foot and ankle trauma, and talar dome osteochondritis dessicans. Also included were several papers that did not fit into any of these categories but provided new insight into specific foot and ankle pathologies.

CONCLUSIONS

Treatment strategies for children with foot and ankle pathology are continually evolving. We review many of the most recent publications with the goal of improving understanding of these pathologies and highlighting current best practices.

LEVEL OF EVIDENCE

Level III.

Clubfoot Activity and Recurrence Exercise Study (CARES)

BACKGROUND

Approximately half of treated clubfoot patients initially corrected with the Ponseti method experience relapse that requires additional treatment. The consequences of relapse on childhood activity levels have not been well studied. Ponseti noted lower functional ratings at 18-year follow-up in clubfoot patients who had undergone tibialis anterior tendon transfer for relapse.

METHODS

Clubfoot Activity and Recurrence Exercise study (CARES) is an observational, prospective cohort study that compares physical activity in 30 clubfoot patients without and with relapse. Eligible participants were 5 to 10 years old, diagnosed with idiopathic clubfoot at birth, and had not received any clubfoot treatment for at least 6 months before study. Recruitment for this study occurred in-person and through Facebook clubfoot groups. Consented participants wore Fitbits secured to their wrists for at least 14 days, and completed a demographic survey, Child Health Questionnaire (CHQ), and the clubfoot disease-specific instrument (CDSI). Participants' daily activity was monitored through Fitabase.

RESULTS

Participants without and with clubfoot relapse had similar daily step counts, distance walked, and step intensities, except for moderately active step intensity, which was higher in the clubfoot relapse group. Total steps, total distance, distances (very active, moderately active), minutes (very active, fairly active), and lightly active intensity of steps were significantly higher for participants whose families earn more than $100,000 per year. Various physical activities and sports were reported by both groups in daily activity sheets. Neither demographics nor the CDSI or the CHQ scores significantly differed between the 2 groups. Step counts of children with clubfoot with or without relapse were similar to published levels for healthy children.

CONCLUSION

Children with clubfoot initially treated with the Ponseti method who undergo treatment for relapse have comparable physical activity to those who have not relapsed. They also have comparable step counts to that of the general pediatric population. These reassuring findings can guide conversations with parents when addressing concerns regarding their children's physical activity after treatment for relapse of clubfoot deformity.

LEVEL OF EVIDENCE

Level II-therapeutic studies-investigating the results of treatment.

This is a narrative review of the functional evaluation of clubfoot treatment with gait analysis

Clinicians worldwide have embraced Ponseti’s nonoperative approach in the treatment of clubfoot, primarily due to ubiquitous reports of successful outcomes. A crucial component in this measured success, has come from researchers assessing long-term physical function following nonoperative treatment. Gait analysis has been instrumental in objectively evaluating lower extremity kinematics and kinetics while plantar pressures demonstrate the load bearing patterns experienced in the foot. As technology improves, our ability to evaluate function can take place both in the laboratory setting, and in the community. For over 20 years, our institution has been studying the gait patterns of children treated for clubfoot. After adopting the nonoperative approach, we established a prospective research program that has allowed us to study functional outcomes in the very young walker, through growth to adolescents, and finally at skeletal maturity. We have seen over 450 children treated for clubfoot in the Movement Science Lab, for over 1,250 gait assessments over the span of this study. Early results in 105 children (154 feet) treated nonoperatively for clubfoot, showed 56% of children had normal sagittal plane ankle kinematics, however an incidence of 48% of Ponseti feet had increased dorsiflexion in stance phase, leading us to wonder if this was the result of the tenotomy. Intermediate follow up at age 5 years, showed that the incidence of increased dorsiflexion was reduced (24%) and ankle power did not appear to be affected (P>0.05 compared to controls). The research highlighted in this paper presents the application of functional evaluation through growth and the long-term effects of nonoperative treatment on gait and function. This is a review of the functional outcome studies from our experience at Scottish Rite for Children.

Gross motor skill development is similar in children post Ponseti casting for congenital talipes equinovarus compared to typically developing children: a systematic review

This review aimed to investigate gross motor skill development in children with congenital talipes equinovarus (CTEV) following the Ponseti method of casting and bracing. Summary of evidence revealed through a systematic search of electronic databases completed in May 2019. A Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement was used to report and conduct the study. The McMaster Critical Review Form was used to critically appraise included studies and a descriptive synthesis of the results is reported. Inclusion criteria for studies included participants aged above 4 years, with a diagnosis of CTEV, treated via the Ponseti method and followed up with valid gross motor outcome measures. The comparator was a control group of typically developing children, or reference data. The searches resulted in 619 unique articles. Eight studies (retrospective cohort/case control studies) met inclusion criteria. There were nine different outcome measures used with 29 domains being relevant to this review. Synthesis of the findings found no significant difference between the gross motor skills of children with CTEV treated with Ponseti and typically developing children. The balance domains of three measures were consistently lower for the CTEV group versus controls/normative data. Yet, it is still demonstrated that most gross motor skills are within the typically developing range. It must be considered, however, that there is a spectrum of severity of CTEV and overall gross motor function should be monitored.

Is the Denis Browne Splint a Myth? A Long-Term Prospective Cohort Study in Clubfoot Management using Denis Browne Splint Versus Daily Exercise Protocol

The Ponseti technique is successful in idiopathic clubfoot management. However, the leading cause of relapse and recurrence is nonadherence to the Denis Brown bracing protocol. This necessitates more extensive soft tissue surgeries. Based on a detailed up-to-date search, we have found that no other studies provide such a modified Ponseti technique. This study is unique, as it depends on using specific stretching exercises instead of bracing during management. Between August 2009 and June 2019, a consecutive series of 194 isolated idiopathic clubfoot patients (251 feet) were included in this study. The mean follow-up was 93 months (range 72 to 146), mean 91.8 months. All patients underwent a clinical and functional assessment using the Laaveg-Ponseti score and radiological assessments. There were 132 boys (68.1%) and 62 girls (31.9%), a male-to-female ratio of 2:1. The mean age at initiation of treatment was 14.9 days. According to the Laaveg-Ponseti score, 51.7% yielded excellent results, 35.3% yielded good results, 11.55% yielded fair results, and 1.59% yielded poor results. Bracing noncompliance has been identified as a major cause for treatment failure. This presented exercise protocol not only eliminates the need for bracing and reduces the cost for the affected individuals but also provides excellent clinical and radiographic end results, comparable to the original treatment protocol using the Denis Brown brace.

A presença do pé torto congênito atrasa o início da marcha?

Objetivo O pé torto congênito (PTC) é uma das alterações ortopédicas congênitas que mais frequentemente necessita tratamento intensivo, e pouco se sabe o impacto desse tratamento no desenvolvimento motor. O presente estudo buscou avaliar se pacientes portadores de PTC tratados pelo método de Ponseti desenvolvem a marcha mais tardiamente comparado a um grupo controle e analisar possíveis fatores relacionados.

Métodos Incluídos pacientes nascidos a termo, com < 6 meses de idade, sem tratamento prévio e com seguimento mínimo de 24 meses. O grupo controle foi de pacientes sem alterações musculoesqueléticas, atendidos no mesmo período da realização do presente estudo.

Resultados Um total de 97 pacientes formaram o grupo de estudo e 100 o grupo controle. A média de idade no início da marcha no grupo de estudo foi de 14,7 ± 3,2 meses, e 12,6 ± 1,5 meses (p < 0,05) no grupo controle. Fatores relacionados à marcha tardia foram: idade de início do tratamento > 3 semanas, número de trocas gessadas > 7, recidiva e não realização da tenotomia de Aquiles. Idade de início do tratamento > 3 semanas esteve relacionada a maior número de trocas de gessos. Gênero e lateralidade não tiveram relação com a marcha tardia.

Conclusão Pacientes com PTC tratados com o método de Ponseti apresentam marcha independente aproximadamente 2 meses mais tarde do que o grupo controle. Início mais tardio do tratamento, maior número de trocas de gessos, recidiva e não realização da tenotomia de Aquiles foram relacionados com atraso da marcha.

The diagnosis and management of common childhood orthopedic disorders: An update

Musculoskeletal illness represents a significant portion of office visits to primary and urgent care clinicians. Despite this, little emphasis is placed on learning pediatric orthopaedics during medical school or residency. The focus of this paper is to provide a systematic approach to this general musculoskeletal physical exam and to assist in the recognition of what conditions are normal development and what conditions require observation, workup and referral to an experienced pediatric orthopaedist.

Does idiopathic congenital talipes equinovarus have an impact on attainment of developmental milestones? A multicentre international study

PURPOSE

The Ponseti method is a well-established approach to treating clubfoot. Potentially, both the underlying pathology and adherence to post-correction bracing can affect lower limb function and age of independent standing and walking. This cohort study investigates the age at which infants with idiopathic clubfoot treated using the Ponseti method achieved three selected developmental milestones and whether or not this correlated with treatment compliance.

METHODS

A prospectively collected database from four centres was visited. Inclusion criteria were patients with idiopathic clubfoot with no comorbidities or prior treatment. Age at attainment of independent standing, walking, nocturnal continence was compared across three groups: I) congenital talipes equinovarus (CTEV) children compliant with treatment; II) CTEV children non-compliant with treatment; and III) typically-developed siblings. Minimum follow-up was five years.

RESULTS

In all, 130 patients (198 feet) fitted the inclusion criteria: 43:87 (F:M). Standing was achieved by a mean 12.0 months in group I (sd 2.50); 12.0 months (sd 2.0) in II and ten months (sd 3.0) in III. Walking was achieved by a mean 15 months (sd 4.0) in group I, 14 months (sd 1.75) in II and 12 months (sd 3) in III, respectively. Both the compliant and non-compliant CTEV children were significantly slower at achieving standing and walking compared to sibling controls (p < 0.0001). There was no significant difference between age of nocturnal continence between the three groups.

CONCLUSION

Infants with idiopathic clubfoot treated according to the Ponseti method achieve independent standing and walking approximately two months later than their typically-developed siblings. The delay is not related to the use of the foot abduction brace.

LEVEL OF EVIDENCE

III.

Additional challenges in children with idiopathic clubfoot: is it just the foot?

PURPOSE

Treatment of idiopathic clubfoot (IC) has improved since the introduction of the Ponseti method. However, relapses are still common and primarily related to non-adherence to the brace regime. Our hypothesis was that IC might be more than just a structural deformity. Based on three studies, the aim of this paper was to provide an overview of findings regarding additional challenges within IC.

METHODS

In total, 153 children with IC and 137 control children participated in the studies. The first study assessed gross motor skills in six motor tasks using the Clubfoot Assessment Protocol. The second and third studies surveyed neurodevelopmental difficulties (NDDs) using the Five to Fifteen (FTF) questionnaire and health-related quality of life (HRQoL) using the EuroQol-5D youth.

RESULTS

A high percentage of gross motor deviations were found in children with IC compared with controls, and those correlated poorly with clubfoot severity and foot movement. Children with IC had a higher prevalence of NDDs on the FTF compared with the control group, including the domains: motor skills, perception and language. One-third of children with IC were defined as at risk of developmental disorders. In this subgroup, parents were less satisfied with the outcome of clubfoot treatment and the children reported worse HRQoL than those without NDDs.

CONCLUSION

The findings suggest additional challenges in children with IC, such as NDDs, apparently affecting both clubfoot treatment outcome and HRQoL. Thus, awareness of these challenges could be vital to further optimize treatment and support, for example, with regards to brace adherence.

LEVEL OF EVIDENCE

II - Prognostic study.