Can the Achilles tendon regenerate completely following percutaneous tenotomy in older children with clubfoot?

PURPOSE: The aims of the study were to document the outcomes of percutaneous Achilles tenotomy (pAT) performed in older children with clubfoot, by assessing the clinical, functional and ultrasonographic evidence of Achilles tendon regeneration. METHODS: A retrospective case series of older children with clubfoot treated between August 2011 and July 2020 was studied. Clinical assessment of ankle range of motion and calf strength, functional assessment of triceps surae muscle endurance by single leg heel-rise test, and ultrasonographic assessment of Achilles tendon echotexture and dimensions to assess tendon regeneration were performed. RESULTS: Percutaneous Achilles tenotomy was performed on 31 children (48 clubfeet) at a mean age of 5.24 ± 2.14 years (1-10.2 years). At a mean follow-up of 4.86 ± 1.97 years, all children demonstrated normal calf strength with mean dorsiflexion range of 13.64° (0-25°) and mean plantarflexion range of 37.95° (10-40°). The heel-rise endurance test was completed by 27 children with mean 25.85 heel rises/minute (range 17-30) and mean height of heel rise of 6.29 cm (range 4-10 cm). Normal fibrillar tendinous echotexture with homogenous echogenicity was seen on ultrasonography in 41 feet (85.4%) with mean tendon width of 9.7 mm (3.3-16 mm) and thickness of 5.1 mm (1.8-15 mm), comparable with unaffected feet. CONCLUSIONS: Clinical, functional and ultrasonographic parameters unequivocally demonstrate complete regeneration of the Achilles tendon, when pAT is performed in older children with delayed-presenting idiopathic clubfoot treated using Ponseti principles.

Early Radiographic Characteristics of the Lateral Talocalcaneal Angle and its Predictive Significance for Relapse in Patients With Idiopathic Clubfoot Treated With the Ponseti Method.

In order to evaluate the early radiographic characteristics of the lateral talocalcaneal (L-TC) angle in patients with idiopathic clubfoot (ICF) and to investigate its prognostic significance for relapse after initial treatment with the Ponseti method. We retrospectively included 151 patients (96 males and 55 females; 227 feet) with ICF treated at our Institution between January 2005 and December 2014. The age at initial treatment was less than 6 months, and radiographs were obtained within 3 months of the Achilles tenotomy (mean age: 2.3 months; range: 0.77-6.8). All patients were followed up for at least 7 years (range, 7-18). The participants' feet were classified into 3 groups: relapsed (Group A), not relapsed (Group B), and normal foot groups which consisted of healthy feet in patients with unilateral ICF (Group C). All angle measurements were expressed in degrees. Forty-seven ICF feet in 33 patients relapsed, while 180 feet in 118 patients did not, and the age at relapse was 5.92 ± 1.91 years. Seventy-five normal feet were included in Group C. The average L-TC angle in Group A and B patients was 33.57° ± 12.05° and 39.37° ± 12.55°, respectively, while Group C was 49.61° ± 9.11°. A significant difference was found among the 3 groups of patients (F = 31.48, p < .001). The L-TC angle cut-off value below which a recurrence could be predicted was 36.1° (sensitivity, 74.47%). The L-TC angle of ICF patients treated using the Ponseti method were reduced compared to normal feet. An L-TC angle of <36.1° has relative value in predicting ICF relapse.

Pain behavior of children with bilateral idiopathic clubfoot undergoing Ponseti casting and the effect of non-pharmaceutical pain-relieving agents.

INTRODUCTION: This study prospectively investigated the pain response and physiological parameters [heart rate (HR) and oxygen saturation (SpO2)] during sequential casting in bilateral clubfoot. Additionally, it explored the role of non-nutritive sucking and human care contact on the observed responses during casting. METHODS: Subjects were allotted to control group (Group A with no intervention) and two intervention groups (Group B: non-nutritive sucking intervention, Group C: human care contact intervention). Neonatal Infant Pain Score (NIPS), heart rate (HR), and oxygen saturation (SpO2) were used to assess the response. RESULTS: The three groups matched in age and gender characteristics of the participants. Pain response was noted across all groups. The left foot demonstrated a statistically significant preexisting tachycardia which rose further during casting (p < 0.01). Intergroup comparisons revealed that the alteration for NIPS during casting was in following sequence (Group A > C > B, p < 0.00001). The effect of interventions offered in Group B and C lasted in the post-cast period as well (B > C). CONCLUSION: The clubfoot child exhibited moderate pain response during casting of both feet. A tachycardia was noted prior to initiation of second cast which further exaggerated with subsequent cast. Pacifier (non-nutritive sucking) intervention produced better control of pain response than human care contact during casting for both feet.

Complex, atypical clubfoot: follow-up after up to 16 years reveals a high risk of relapse but good functional and radiological outcomes.

INTRODUCTION: The treatment of complex atypical clubfoot poses many challenges. In this paper, we report on the course of complex clubfoot, primary correction using the modified Ponseti method and midterm outcomes. Special consideration is given to clinical and radiological changes in cases of relapse. MATERIALS AND METHODS: Twenty-seven cases of complex, atypical, non-syndromic clubfoot were treated in 16 children between 2004 and 2012. Patient data, treatment data, functional outcomes and, in the relapse cohort, radiological findings were documented during the course of treatment. The radiological findings were correlated with the functional outcomes. RESULTS: All atypical complex clubfeet could be corrected using a modified form of the Ponseti method. Over an average study period of 11.6 years, 66.6% (n = 18) of clubfeet relapsed. Correction after relapse showed an average dorsiflexion of 11.3° during a 5-years' follow-up period. Radiological results showed residual clubfoot pathologies such as a medialized navicular bone in four clubfeet. There were no instances of subluxation or dislocation of the talonavicular joint. Extensive release surgery was not necessary. Nevertheless, after 2.5 preoperative casts (1-5 casts), bone correction was performed in n = 3 feet in addition to Achilles tendon lengthening and tibialis anterior tendon transfer. CONCLUSION: Good primary correction of complex clubfoot using the modified Ponseti technique results in a high recurrence rate in the medium term. Relapse treatment without peritalar arthrolysis procedures produces good functional results even though minor residual radiological pathologies did persist in a minor number of cases.

Indication for Achilles Tenotomy in Congenital Clubfoot: Effectiveness of Using the Tibio-Plantar Fascia Angle as a Radiographic Parameter.

Congenital clubfoot is one of the most common deformities in children, and currently, the Ponseti method is used worldwide because of its favorable short-term results. With the Ponseti method, the indication for Achilles tenotomy is traditionally based on only physical examination findings; however, some surgeons have also utilized plain radiographs. Because using physical examinations to determine the degree of hindfoot dorsiflexion for the indication of tenotomy can lead to underestimation. We developed and utilized the effectiveness of the tibio-plantar fascia angle (Ti-P angle) in the lateral maximum dorsiflexion view in determining the need for Achilles tenotomy. A retrospective analysis of consecutive 26 patients with congenital idiopathic clubfeet (37 feet) was performed. Whether Achilles tenotomy was indicated was determined based on physical examination for a former period (Group P). For the latter period, whether tenotomy was indicated was determined by referencing radiographs (Group X). No significant differences were found in any of the background factors or severity between Group P and Group X. Cases with larger tibiocalcaneal and Ti-P angles were more likely to require Achilles tenotomy or additional soft tissue release. An angle of more than 72° of the Ti-P angle demonstrated adequate specificity for the indication of Achilles tenotomy. The radiographic lateral tibio-plantar fascia angle is useful for deciding whether a tenotomy needs to be performed.

Anterior Distal Tibial Guided Growth for recurrent equinus deformity in idiopathic Congenital Talipes Equinovarus treated with the Ponseti method.

INTRODUCTION: Distal Anterior Tibial Guided Growth has been shown to be useful to correct recurrent equinus deformity after open surgical release for Congenital Talipes Equinovarus. This has not been evaluated in a recurrence after use of the Ponseti method, where soft tissue releases are currently understood as the mainstay of treatment. METHODS: Patients with recurrence of equinus component of CTEV, who underwent DATGG with at least 6-month follow-up were identified retrospectively. The criteria for performing this procedure were (1) equinus not correctable to neutral passively (2) the feeling of a bony block to dorsiflexion clinically as evidenced by a supple Achilles' tendon at maximum dorsiflexion and (3)a finding of a flat-top talus radiologically. Successful treatment was defined by the achievement of heel strike on observation of gait. Details of the index procedure including concurrent procedures, any complications and their treatment, past and subsequent treatment episodes were retrieved from electronic patient records. Pre-op and last available post-op X-rays were evaluated for change in the anterior distal tibial angle and for flat-top talus deformity. RESULTS: We identified 22 feet in 16 patients, with an average follow-up was 25 (8.8-47.3) months. The mean aDTA changed from 88.9 (82.3-94.5) to 77.0 (65.0-83.9) degrees, which was statistically significant (p < 0.0001) using the Paired t-test. Clinically, 17 feet (77 %) obtained a plantigrade foot with a normal heel strike. Complications were identified in 5 feet and include staple migration, oversized staple, superficial infection, iatrogenic varus deformity. Recurrence after completed treatment was noted in one foot. CONCLUSION: This procedure should form a part of the armamentarium of procedures for treating equinus component of CTEV recurrences even in feet not treated previously by open procedures. When used in patients without significant surgical scarring it helps to address bony and soft-tissue factors, leading to effective treatment. LEVEL OF EVIDENCE: Therapeutic Level IV.

A 5-years results of the Ponseti method in the treatment of congenital clubfoot: a retrospective study.

BACKGROUND: Clubfoot is a common congenital deformity affecting mobility of children. It leads to pain and disability. The Ponseti treatment method is non-surgical method for the correction of clubfoot. There is variation from country to country in how the result of clubfoot management is measured and reported. This study aimed to assess the 5-years results of the Ponseti method in the treatment of congenital clubfoot which was performed for children aged under 2 years in western Amhara, Ethiopia. OBJECTIVES: The objective of this study was to assess a 5-years results of the Ponseti method in the treatment of congenital clubfoot among under 2-years old children in Felege Hiwot Referral Hospital, Bahir-Dar, Ethiopia, from 2015 to 2019 G.C. METHODS: A facility-based retrospective cross-sectional study was conducted. After receiving letter of ethical clearance from the University, IRB board, the data were collected from medical record/charts of patients' who received Ponseti treatment, and the collected data were entered and analyzed with Statistical Package for Social Sciences version 21. The results were presented with texts and tables. RESULTS: A total of 200 children with 256 congenital clubfeet involved in the study. Among the total study subjects, 143 (71.5%) had unilateral clubfeet. The 5-years results of the Ponseti method in the treatment of congenital clubfoot conducted in 200 children with clubfeet were 187 (93.5%) with 95% (CI 90-99.5). Among the study participants, males were 66.5% (almost two times from females). CONCLUSIONS AND RECOMMENDATIONS: According to the results from a 5-years data showed that the Ponseti method in the treatment of congenital clubfoot was successful with a success rate of 93.5%. We recommend that children with congenital clubfeet should be managed with Ponseti treatment method timely.

Factors associated with the relapse in Ponseti treated congenital clubfoot.

OBJECTIVES: We retrospectively investigated the clinical materials to seek the factors that lead to relapse after using the Ponseti method. METHODS: We retrospectively reviewed all children with congenital clubfoot treated with the Ponseti method in our hospital from June 2008 to June 2013. The data included the following factors: age, gender, initial Pinari score, number of casts, number of feet (unilateral or bilateral), age at the first casting, age of mother, tenotomy, walking age, and compliance with using bracing. All investigations were conducted in conformity with ethical standards. This study was approved by Guilin Peoples' Hospital Ethics Committee. RESULTS: In this study, there were 148 cases (164 ft) in total that underwent the Ponseti method, with the follow-up period at least 5 years. Of them, 64 children presented with left side, 58 with right side, and 26 with bilateral cases. This study included 75 males and 73 females; sex did not affect the outcomes. The mean age of the first casting was 2.50 ± 2.15 months. The average initial Pirani score was 4.98 ± 1.33, and the average number of casts was 5.71 ± 2.28 times. The mean age of mothers at birth was 25.81 ± 2.38 years old. The walking age of children was at a mean of 14.83 ± 1.18 months. Forty-nine cases could not tolerate using braces, namely the rate of noncompliance in this study was 33.1%. Tenotomy was performed on 113 ft (76.4%). The average follow-up period was 7.27 ± 1.29 years (from 5 to 10 years). The rate of relapse was 21.6% (32 cases) at the end of the follow-up. The rate of relapse in the noncompliance with using bracing group was significantly higher compared to the compliance group . CONCLUSION: The initial Pirani score, compliance with the foot abduction brace and the age at the first casting are three independent factors for relapse in clubfoot.

The foot external rotation above-knee (FERAK) brace versus the Denis Browne brace for management of idiopathic clubfoot following Ponseti casting: a randomized controlled trial.

PURPOSE: To compare the foot external rotation above-knee (FERAK) brace and the Denis Browne boot (DBB) brace in terms of relapse prevention and parents' compliance after successful correction with Ponseti casting. METHODS: A single-centre, randomized controlled study was conducted between 2016 and 2020. A total of 60 feet in 38 patients with idiopathic clubfoot initially corrected with the Ponseti method were included. They were randomized into two equal groups: the FERAK group and the DBB group. The primary outcome was the efficacy in maintaining correction measured by the Pirani score. The secondary outcomes were parents' compliance and complications (e.g., relapses, skin complications). RESULTS: The follow-up period was 24 months for each patient. The mean final Pirani score was 0.42 ± 0.76 in the FERAK group and 0.57 ± 0.82 in the DBB group. This difference was statistically insignificant (p-value = 0.411). Regarding parents' compliance in the FERAK group, 86.7% of parents had good and intermediate compliance while 13.3% had bad compliance. In the DBB group, 66.7% had good and intermediate compliance while 33.3% had bad compliance. This difference was also statistically insignificant (p-value = 0.118). CONCLUSION: Both braces achieved good comparable outcomes after Ponseti casting. However, the FERAK brace yielded slightly better parents' compliance with a less recurrence rate.

Factors Causing Dropout From Treatment During the Ponseti Method of Clubfoot Management: The Caregivers' Perspective.

A retrospective comparative study was conducted, aiming to identify factors associated with dropout from clubfoot treatment by Ponseti method in low- and middle-income countries. A prospectively gathered database of patients who received treatment at a high-volume urban clubfoot clinic over 6 years was queried for dropouts. A "dropout" was identified as any child that had not had a visit within 3 weeks of casting, 4 weeks of tenotomy or 6 months of brace follow-up. The second part of the study was a telephonic interview with caregivers of the identified dropouts to ascertain their reasons for discontinuing treatment. Of the 965 patients treated during the study period, there were 155 (16.06%) dropouts-137 (88.38%) during bracing phase and 18 (11.62%) during casting phase. Age at presentation was significantly higher among the dropouts as compared to those who did not dropout (median 9.5 and 7 months for casting and bracing dropouts respectively versus 3.5 months for regular follow-ups, p < .001). No significant correlation was found between patient dropout and sex (p = .061), or laterality (p = .071). Thirty-seven caregivers (23.8%) could be contacted telephonically; including 6 casting and 31 bracing dropouts. The most commonly cited reason for dropout from treatment was lack of family support (75.7%), followed by distance to the clinic (59.5%) and unavailability of transport (54.1%). Sixteen caregivers (43.2%) dropped out on account of migration to another town/state. Maintenance of a meticulous registry with regular update of caregivers' contact details, and interventions to mitigate the identified hurdles can help in reducing treatment dropouts.

Clinico-Radiological and Functional Outcome of Difficult Talipes Equinovarus Deformity Corrected With an Ilizarov Fixator.

Relapsed, resistant, and untreated congenital talipes equinovarus poses significant challenges in view of functional outcome following conventional serial casting and soft tissue release procedures. The Ilizarov ring fixator here offers significant possibilities as an extended conservative treatment modality. The aim of the present study was to critically evaluate effectiveness of the Ilizarov ring fixator with regard to radiological, clinical, and functional outcomes, in the difficult clubfeet. The study was carried out on patients presenting with relapsed, resistant, or untreated congenital talipes equinovarus deformity, who underwent deformity correction using the Ilizarov ring fixator application. All patients were reviewed at 6 monthly intervals for over 3 years following fixator removal with an objective clinical, radiological, and functional assessment. Twenty-three patients with 30 clubfeet were enrolled in our study. The mean age was 8.3 ± 3.6 (range 4-17) years. The postoperative clinical, radiological, and functional scores showed statistically significant improvement among all patients when compared with the preoperative data. All 30 feet developed varying complications during treatment with pin track infections being the most common. However, they were managed while continuing the distraction correction process. The Ilizarov ring fixator is an effective and reliable solution for difficult and challenging clubfeet. However, one must be aware of a strict adherence to a bracing protocol to avoid recurrence of deformities. A regular periodical functional and clinical follow up must be ensured among these children for a favorable outcome.

Comparison of outcome of Ponseti method with traditional clubfoot treatment in children up to five years of age at tertiary care hospital.

Objectives: To compare the outcomes of Ponseti treatment with the traditional treatment method for clubfoot. Methods: A cross-sectional comparative study was conducted at the orthopedic department of Nishtar Medical Hospital & University Multan for one year. The study included 40 children (29 clubfeet) treated with conventional treatment (pre-Ponseti group) who were compared with 55 Ponseti-treated children (72 clubfeet) (Ponseti group). All children were aged under five years. The traditional treatment involved casting and surgery (if required). All the participants were evaluated by a single orthopedic surgeon. The questionnaire was administered to the parents to collect relevant data. X-ray studies were conducted of all feet and patients' records were checked for surgical history. Results: Children in the pre-Ponseti group had a significantly higher number of surgeries (54) than those in Ponseti group eight. According to the reports of the parents, children in Ponseti group had significantly better motion in the ankle, lesser pain, and higher satisfaction (p<0.05.whereas, the pre-Ponseti group had a higher incidence of moderate or severe talar flattening rate (p=0.01). Conclusion: Ponseti treatment is better than earlier treatment in terms of lesser need of surgeries, higher flexibility of ankle or foot, and lower presence of X-ray guided talar flattening.

Magnetic resonance imaging of severe idiopathic club foot treated with one-week accelerated Ponseti (OWAP) technique.

PURPOSE: This study aims to evaluate changes in tarsal bones relationship after the use of one week accelerated Ponseti method in the treatment of severe idiopathic clubfoot using MRI. We hypothesize that one-week accelerated Ponseti is at least as effective as standard techniques in achieving the desirable MRI parameters. METHODS: This is a prospective study of 8 children with severe idiopathic clubfeet (Pirani 6) (4 unilateral and 4 bilateral) treated before the age of three months with one-week accelerated Ponseti technique, as described in a former study with minimum 2-year follow-up. The 8 corrected feet were compared with the 4 unilateral normal feet at clinical and radiological levels using a Pirani scoring system and an MRI, respectively. RESULTS: Clinical results showed that Pirani score was 1.1 in the last follow up in comparison to Pirani 6 pretreatment (p < 0.05). MRI results indicated that the malleocalcaneal angle, axial malleocalcaneal index, coronal tibiocalcaneal angle, sagittal talocalcaneal angle, and talar head neck calcaneal rotation showed statistical difference between the two groups (p < 0.05). Sagittal malleocalcaneal index, sagittal tibiocalcaneal angle, talar head neck rotation related to talar body, and posterior calcaneal rotation showed no statistical difference between normal feet and clubfeet after correction (p value >0.05). CONCLUSION: One-week accelerated Ponseti technique showed to be as effective and safe as other treatment methods through clinical and MRI follow up data. MRI role was to confirm the efficiency of this innovative accelerated technique, but not used as a routine follow up.

Finite element analysis of the kinematic coupling effect of the joints around talus when Ponseti manipulation.

BACKGROUND: Little information was obtained from the published papers about the kinematic coupling effect between tarsal bones during Ponseti manipulation. The aim was to explore the kinematic coupling effect of the joints around talus, to investigate the kinematic rhythm and coupling relationship of tarsal joints; to clarify the pulling effect on medial ligament of the ankle during the process of Ponseti manipulation. METHODS: The model of foot and ankle was reconstructed from the Chinese digital human girl No.1 (CDH-G1) image database. Finite element analysis was applied to explore the kinematic coupling effect of the joints around talus. The distal tibia and fibula bone and the head of talus were fixed in all six degrees of freedom; outward pressure was added to the first metatarsal head to simulate the Ponseti manipulation. Kinematic coupling of each tarsal joint was investigated using the method of whole model splitting, and medial ligament pulling of the ankle was studied by designing the model of medial ligament deletion during the Ponseti manipulation. RESULTS: All the tarsal joints produced significant displacement in kinematic coupling effect, and the talus itself produced great displacement in the joint of ankle. Quantitative analysis revealed that the maximum displacement was found in the joints of talonavicular (12.01mm), cuneonavicular (10.50mm), calcaneocuboid (7.97mm), and subtalar(6.99mm).The kinematic coupling rhythm between talus and navicular, talus and calcaneus, calcaneus and cuboid, navicular and cuneiform 1 were 1:12, 1:7, 1:2 and 1:1.6. The results of ligaments pulling showed that the maximum displacement was presented in the ligaments of tibionavicular (mean 27.99mm), talonavicular (21.03mm), and calcaneonavicular (19.18 mm). CONCLUSIONS: All the tarsal joints around talus were involved in the process of Ponseti manipulation, and the strongest kinematic coupling effect was found in the joints of talonavicular, subtalar, calcaneocuboid, and cuneonavicular. The ligaments of tibionavicular, talonavicular, and calcaneonavicular were stretched greatly. It was suggested that the method of Ponseti management was a complex deformity correction processes involved all the tarsal joints. The present study contributed to better understanding the principle of Ponseti manipulation and the pathoanatomy of clubfoot. Also, the importance of cuneonavicular joint should be stressed in clinical practice.

Long-term outcomes of the Ponseti method for treatment of clubfoot: a systematic review.

PURPOSE: The Ponseti method has revolutionized the clubfoot treatment and has been adopted globally in the past couple of decades. However, most reported results of the Ponseti method are either short or midterm. Studies reporting long-term outcomes of the Ponseti method are limited. The following systematic review aimed to provide a comprehensive overview of the published articles on long-term outcomes of the Ponseti method. MATERIAL AND METHODS: A literature search was performed for articles published in electronic database PubMed (includes Medline) and Cochrane for broad keywords: "Clubfoot"; "Ponseti method/technique"; "long term outcomes/results." Studies selected included full-text articles in English language on children less than one year with primary idiopathic clubfoot treated by the Ponseti method with mean ten year follow-up. Non-idiopathic causes or syndromic clubfoot and case reports/review articles/meta-analyses were excluded. The following parameters were included for analysis: number of patients/clubfeet, male/female, mean age at treatment, mean/range of follow-up, relapses, additional surgery, range of motion, various outcome scores, and radiological variables. RESULTS: Fourteen studies with 774 patients/1122 feet were included. The male:female ratio was 2.4:1. Mean follow-up recorded in studies was 14.5 years. Relapses occurred in 47% patients with additional surgery being required in 79% patients with relapses. Of these, 86% of surgery were extra-articular while 14% were intra-articular. Plantigrade foot was achieved in majority patients with mean ankle dorsiflexion of 11 degrees. The outcome scores were in general good in contrast to radiological angles which were mostly outside normal range with talar flattening/navicular wedging/degenerative osteoarthritis changes occurring in 60%, 76%, and 30%, respectively. CONCLUSIONS: Long-term follow-up of infants with primary idiopathic clubfeet treated by the Ponseti method revealed relatively high relapse and additional surgery rates. Radiologically, the various angles were inconsistent compared to normal ranges and anatomical deformations/degenerative changes were present in treated feet. Moreover, the relapse rates and requirement of additional surgery increased on long-term follow-up. Despite this, majority feet were plantigrade and demonstrated good clinical results as measured by various outcome tools. There should be emphasis on long-term follow-up of children with clubfeet in view of late relapses and secondary late changes.

Is the modified Ponseti method effective in treating atypical and complex clubfoot? A systematic review.

PURPOSE: In 2006, Ponseti modified the standard technique to treat cases of "atypical" and "complex" clubfoot. To determine the outcomes of Ponseti's modified method to treat complex idiopathic clubfoot patients, we asked the following: (1) What is the deformity correction success rate? (2) What is the relapse rate after the correction? (3) What is the incidence of complications? MATERIALS AND METHODS: We performed a systematic review by searching the EMBASE, MEDLINE, Cochrane Library, and Web of Science databases from inception to March 1, 2021. All studies on idiopathic, complex, and atypical clubfoot that assessed Ponseti's modified technique were included. Of 699 identified articles, ten met the inclusion criteria. The mean index for non-randomized studies score for the included studies was 11.8 ± 1.7. RESULTS: Early detection of the deformity and modifying the standard protocol, as described by Ponseti, resulted in a high rate of success. Initial correction occurred in all children, with a mean ankle dorsiflexion of 15°. Relapse occurred often ranging between 10.5 and 55%. The incidence of complications associated with the modified Ponseti method ranged from 6 to 30%. CONCLUSIONS: Studies using the modified Ponseti technique have shown high initial correction rates and a smaller number of relapses. However, studies with prospective designs and long-term follow-up are required to conclude whether these observations are due to properly performing the modified method or if higher rates of relapse increase with further follow-up.

Development of a functional prototype of a SMART (Sensor-integrated for Monitoring And Remote Tracking) foot abduction brace for clubfoot treatment: a pre-clinical evaluation.

PURPOSE: Recurrences following clubfoot correction by the Ponseti method can be prevented by regular use of a foot abduction brace (FAB) until the child is four to five years old. However, there is a lack of an objective method to measure actual hours of brace usage. The aim was to develop a functional prototype of a SMART (Sensor-integrated for Monitoring And Remote Tracking) clubfoot brace to record accurate brace usage and transmit the data remotely to healthcare providers treating clubfoot. METHODS: A collaborative team of engineers and doctors was formed to investigate various types of sensors and wireless technologies to develop a functional prototype of a SMART brace. RESULTS: Infrared sensors were used to detect if the feet were placed inside the shoes and magnetic Hall effect sensors to detect that the shoes were latched on to the bar of the existing FAB. Brace usage data were captured by the sensors every 15 minutes and stored locally on a data card. A Bluetooth low energy (BLE)-based wireless transmission system was used to send the data daily from the brace to the remote cloud server via a smartphone application. Accurate brace usage data could be recorded by the sensors and visualized in real time on a web-based application in a pre-clinical setting, demonstrating feasibility in clinical practice. CONCLUSION: The low-cost SMART brace prototype that we have developed can accurately measure and remotely transmit brace usage data and has the potential to transform caregivers' behaviour towards brace adherence, which could result in a tangible reduction in recurrence rates.

The Ponseti method of treatment for neuromuscular and syndromic (non-idiopathic) clubfeet: evaluation of a programme-based approach at a mean follow-up of 5.8 years.

PURPOSE: To analyse the results of the Ponseti method in the treatment of non-idiopathic clubfeet and compare them with idiopathic clubfeet in a programme-based setting using a standardized protocol METHODS: We reviewed two groups of 782 children treated prospectively in our programme-based Clubfoot Clinic: group I comprised of 89 patients (146 feet) with non-idiopathic clubfoot and group II comprised of 693 patients (1032 feet) with idiopathic clubfoot. Both groups were compared on the basis of patient demographics, number of casts, tenotomy rate, success rate, rate of recurrences, and the need for additional secondary procedures. RESULTS: Non-idiopathic clubfeet had a higher incidence of bilateral involvement (p = 0.0093) and affected both males and females equally (p = 0.002) as compared with idiopathic clubfeet. Non-idiopathic clubfeet (group I) required significantly more casts (6.75 ± 4.2) compared with idiopathic clubfeet (4.23 ± 4.14), had a higher rate of Achilles tenotomy (90.4% vs 75%, p < 0.0001), and had a lower initial correction rate compared with idiopathic clubfeet (92.5% vs 100%, p < 0.0001). There was a significant difference in the recurrence rates between the two groups, as 42.5% of non-idiopathic feet (38 patients) relapsed compared with 10.2% (71 patients) in the idiopathic group (p < 0.0001). Most recurrences in group I were amenable to re-casting, with only nine patients (14 non-idiopathic clubfeet) requiring extensive soft tissue releases. The final success rate in the non-idiopathic group at a mean follow-up of 5.8 years (2-8 years) was 87.7%. CONCLUSIONS: We recommend the use of the Ponseti method as an effective treatment for non-idiopathic clubfeet associated with neuromuscular and syndromic conditions.

Correlation of radiographic parameters with clinical correction in idiopathic congenital talipes equinovarus undergoing Ponseti treatment.

PURPOSE: Idiopathic congenital talipes equinovarus is the most commonly encountered congenital deformity of the foot. Ponseti technique of manipulation is the treatment of choice. The Pirani classification is a reliable scoring system for clinical evaluation of clubfeet. The role of radiographic parameters in the evaluation and treatment of clubfeet is still controversial. The aim of this study was to evaluate the correlation of radiological parameters with clinical correction in patients with idiopathic clubfeet undergoing correction using Ponseti method. METHODS: Between March 2018 and March 2019, 42 feet in 27 patients with idiopathic clubfeet were treated in our hospital. We used the Pirani scoring system for clinical evaluation. Anteroposterior and lateral views of the feet were taken before and after correction and at the last follow-up. The anteroposterior view was evaluated for the talocalcaneal angle and talo-first metatarsal angle, while the lateral view was only evaluated for the talocalcaneal angle. RESULTS: Twelve were boys (44.4%), and 15 were girls (55.6%). The deformity was bilateral in 15 patients (55.6%) and unilateral in 12 patients (44.4%). The average age was three months. According to the Pirani score, the mean Pirani Total score was 4.4 before correction and reduced to 0.4 after correction. The mean talocalcaneal angle in anteroposterior and lateral views was 15.1° and 7.8° before correction, increased to 32.7° and 31.8° after correction, respectively. The mean talocalcaneal index increased from 23.2 before correction to 64.5 after correction. The mean talo-first metatarsal angle in anteroposterior view improved from 25.7° before correction to - 1.6° after correction. The relation between the differences in Pirani scores before and after correction and the differences in measured radiographic parameters before and after correction revealed a statistically significant correlation. CONCLUSION: Radiographic parameters showed a statistically significant correlation with the clinical outcome. Thus, evaluation of clubfeet correction treated by Ponseti technique can rely mainly on clinical scores with limited utilization of radiological assessment.

Ponseti Idiopathic and Nonidiopathic Clubfoot Correction With Secondary Surgeries.

The Ponseti method has revolutionized clubfoot treatment for not only idiopathic clubfoot but also non-idiopathic clubfoot. This study aimed to validate the existing literature with respect to the Ponseti method serving as first line treatment for clubfoot. The purpose of this study was to compare clubfoot type and recurrence with secondary surgical procedures following Ponseti method. Kaiser Permanente Northern California database was queried to identify clubfoot children under 3 years old with a consecutive 3-year membership. Associated comorbidities and operative procedure codes were identified. Chart review was performed on all surgical clubfoot patients who completed Ponseti method. Patients' average age at time of surgery, frequency of surgeries, and types of procedures performed were recorded. A logistic regression analysis assessed the adjusted association between surgery status and clubfoot type. Clubfoot incidence was about 1 in 1000 live births. Of the 375 clubfoot children, 334 (89%) were idiopathic and 41 (11%) were non-idiopathic. In the total study population, 82% (n = 309) patients maintained Ponseti correction without a secondary surgery; 66 patients (18%) underwent subsequent secondary surgeries. The non-idiopathic clubfoot underwent surgery more frequently compared to idiopathic clubfoot patients (41.5% vs 14.7%, respectively, p = .0001). Non-idiopathic clubfoot children underwent surgery at a younger age. This study validates the Ponseti method is the first line treatment for clubfoot correction despite etiology. However, patients with recurrent clubfoot may require secondary surgery following Ponseti method. Clubfoot recurrence surveillance is key for identifying early symptomatic recurrence in order to minimize foot rigidity and the need for osseous procedures.