We investigated 60 patients (89 feet) with a mean age of 64 years (61 to 67) treated for congenital clubfoot deformity, using standardised weight-bearing radiographs of both feet and ankles together with a functional evaluation. Talocalcaneal and talonavicular relationships were measured and the degree of osteo-arthritic change in the ankle and talonavicular joints was assessed. The functional results were evaluated using a modified Laaveg-Ponseti score. The talocalcaneal (TC) angles in the clubfeet were significantly lower in both anteroposterior (AP) and lateral projections than in the unaffected feet (p < 0.001 for both views). There was significant medial subluxation of the navicular in the clubfeet compared with the unaffected feet (p < 0.001). Severe osteoarthritis in the ankle joint was seen in seven feet (8%) and in the talonavicular joint in 11 feet (12%). The functional result was excellent or good (≥ 80 points) in 29 patients (48%), and fair or poor (< 80 points) in 31 patients (52%). Patients who had undergone few (0 to 1) surgical procedures had better functional outcomes than those who had undergone two or more procedures (p < 0.001). There was a significant correlation between the functional result and the degree of medial subluxation of the navicular (p < 0.001, r. 2 . = 0.164), the talocalcaneal angle on AP projection (p < 0.02, r2 = 0.025) and extent of osteoarthritis in the ankle joint (p < 0.001). We conclude that poor functional outcome in patients with congenital clubfoot occurs more frequently in those with medial displacement of the navicular, osteoarthritis of the talonavicular and ankle joints, and a low talocalcaneal angle on the AP projection, and in patients who have undergone two or more surgical procedures. However, the ankle joint in these patients appeared relatively resistant to the development of osteoarthritis

The aim of the work was to evaluate long-term results of posteromedial release in the treatment of congenital clubfoot. The posteromedial release – which includes capsuloligamentothomy of the tibiotalar and tibio-calcaneal joints from the posterior and medial aspects and “Z” lengthening of the Achilles and posterior tibial muscle tendons with Steindler procedure – has been the basic treatment of choice for many years in cases of congenital clubfoot in the Child Orthopaedic Clinic of the Pomeranian Medical Academy. In some cases transfer of the anterior tibial muscle tendon was also included in that procedure. Between 1979 and 1990, a total of 135 children were treated with posteromadial release at the author’s institution. Thirty-five patients were excluded from the study because of incomplete medical documentation or because of a possible different origin of the deformity, i.e., subtle spastic cerebral palsy or arthrogryphosis, etc. The study group consisted of 100 patients with 135 clubfeet. At the final follow-up, 46 patients were evaluated with 61 clubfeet. Mean age at the time of surgery was 12.3 months (5–48). All patients had been treated conservatively at the author’s clinic before operative treatment started. Average age of the beginning of the manipulative treatment (followed by cast application in weekly intervals) was 4.3 weeks (1 to 48). Mean follow-up period was 15.7 years (range 20.4–10.1). The patients’ age at the last follow-up ranged from 11 to 21 years old. The final evaluation based on the criteria of Magone, et. al., gave us the following results: Excellent: 17 feet (28%); Good: 17 feet (28%); Fair: 11 feet (18%); Poor: 16 feet (26%). Posteromedial release with the Steindler procedure added gives us more than 50% excellent and good results when applied early and with proper pre- and post-operative conservative treatment

The outcome in 83 patients with congenital clubfoot was evaluated at a mean age of 64 years using three validated questionnaires assessing both quality of life (short-form (SF)-36 and EQ-5D) and foot and ankle function (American Academy of Orthopaedic Surgeons (AAOS) Foot and Ankle questionnaire). In SF-36, male patients scored significantly better than male norms in seven of the eight domains, whereas female patients scored significantly worse than female norms in two of the eight. Male patients scored better than male norms in both the EQ-5D index (p = 0.027) and visual analogue scale (VAS) (p = 0.013), whereas female patients scored worse than female norms in the VAS (p < 0.001). Both male and female patients had a significantly worse outcome on the AAOS Core Scale than did norms. There was a significant correlation for both genders between the SF-36 Physical Component Summary Score and the AAOS Core Scale. The influence on activities of daily life was limited to foot and ankle problems in all patients, and in females there was an adverse effect in physical aspects of quality of life

This paper outlines a valid and reliable, clinical method of assessing the amount of deformity in the congenital clubfoot. Clinical & MRI clubfoot scoring systems were developed to score the amount of deformity clinically & to image & score osteochondral pathology of the club-foot -MRI Total Score (MTS), MRI Hindfoot Contracture Score (MHCS), & MRI Midfoot Contracture Score (MMCS), Clinical Total Score (CTS), Clinical Hindfoot Contracture Score (CHCS), Clinical Midfoot Contracture Score (CMCS). Three independent observers tested the Clinical scoring systems Inter-observer reliability (Kappa Statistic) over one hundred consecutive clubfeet. Kappa values were CTS-0.92, CMCS-0.91, and CHCS-0.86- (almost perfect inter-observer reliability). Nineteen clubfeet were scored clinically and by thirty-eight MRI evaluations during treatment. Validity was evaluated by correlating the MRI and clinical scores (Pearson Correlation). The Pearson Correlations between clinical & MRI scores were CTS: MTS = 0.786 (P< 0.01), CHCS: MHCS = 0.712 (P< 0.01) & CMCS: MMCS = 0.651 (P< 0.01). All correlations were highly significant confirming validity. There is neither reliability nor validity in current methods of clubfoot assessment. This paper outlines a method of assessing the amount of deformity in the congenital clubfoot deformity using six well-described simple clinical signs that has been tested & found to be both valid and reliable. A clinical clubfoot scoring system was created- Clinical Total Score (CTS)- comprised of a Clinical Hind-foot Contracture Score (CHCS) & a Clinical Midfoot Contracture Score (CMCS). One hundred consecutive congenital clubfeet were scored for clinical deformity each week during cast treatment by three independent observers. Inter-observer reliability (Kappa Statistic) of this clinical scoring system was evaluated. A clubfoot MRI protocol & scoring system were developed to visualise & score osteochondral pathology of the clubfoot -MRI Total Score (MTS)- comprised of a MRI Hindfoot Contracture Score (MHCS) and a MRI Midfoot Contracture Score (MMCS). Nineteen clubfeet were scored clinically and by thirty-eight MRI evaluations during treatment. All MRI films were scored for amount of osteochondral pathology. Validity of this clinical scoring system was evaluated by correlating the MRI and clinical scores (Pearson Correlation). The Kappa values for inter-observer reliability were CTS-0.92, CMCS-0.91, and CHCS-0.86. All scores showed almost perfect inter-observer reliability. The Pearson Correlations between clinical & MRI scores were CTS: MTS = 0.786 (P< 0.01), CHCS: MHCS = 0.712 (P< 0.01) & CMCS: MMCS = 0.651 (P< 0.01). All correlations were highly significant confirming validity of the clinical scores. We have developed a clinical scoring system for club-feet that is reliable and valid

Introduction: Clubfoot – Congenital talipes equinovarus (CTEV) – is one of the most common congenital conditions requiring orthopaedic surgery. However little is known about the impact on health-related quality of life in these patients. A score on physical- and mental-health is used for this purpose. The aim of the present study was to compare health-related quality of life in CTEV to a background population. Materials and Methods: The Odense based Danish Twin Registry (DTR) is unique as it contains data on all 73,000 twin pairs born in Denmark over the last 130 years. All 46,418 twins born from 1931 through 1982 received an Omnibus questionnaire in the spring of 2002. The incidence of CTEV was self-reported. Included in the questionnaire were questions for The Medical Outcome Study Short Form-12 (SF-12). We calculated SF-12 Physical Component Summary scale (SF-12 PCS) and SF-12 Mental Component Summary scale (SF-12 MCS) using the SF Health Outcomes Scoring Software. 80 reported to have CTEV and the remaining 29,516 were used as controls. Results: 46,418 twins received and 34,944 (75%) returned the questionnaire. 34,485 (99% of the responders) answered the question ‘Were you born with club-foot?’ The sex distribution in these was 15,731 (46%) males and 18,754 (54%) females. The self-reported prevalence of CTEV was 0.0027 (95% confidence interval 0.0022–0.0034). 80 reported to have CTEV and the remaining 29,516 were used as controls. In the CTEV group SF-12 PCSmean was 50.18 (SD 11.19) vs 53.09 (SD 8.11) in the controls. p< 0.0007. In the CTEV group SF-12 MCSmean was 50.58 (SD 10.52) vs 51.78 (SD 8.47) in the controls. NS. Conclusion: The impact of congenital clubfoot on health-related quality of life was significant only on the physical scale. The clubfoot patients scoring lower than the controls. There was no difference in the mental scale between the two groups

The outcome of surgical treatment for congenital clubfoot depends, among other things, on obtaining correct repositioning of the tarsus in relation to the talus, i.e., peritarsal correction. This correction includes successfully repositioning the navicular, which is dislocated medially in relation to the head of the talus. Evaluation of talonavicular repositioning is possible in older children when it is possible to observe the navicular bone on a radiograph. In radiographs of younger children between the ages of three and five, the navicular bone cannot be seen. USG examination may be helpful in the evaluation of talonavicular positioning, enabling better planning of the surgical procedure and its range. In the Paediatric Orthopaedic Department of Medical Academy in Lublin from 1995 to 1999, 225 children (256 feet) were surgically treated. The peritarsal correction method (Turco) was used to manage 221 feet, and 31 feet by the subtalar release method according to Crawford by the incision of Cincinnati. Fifty-two feet were re-operated because of recurrent deformation. USG examinations revealed incorrect positioning of the navicular bone. There was medial displacement in 24 feet (recurrent deformations), and wedge-shaped navicular bone in 18 feet and connected with dorsal displacement (overcorrection). Medial displacements were observed in residual adductus deformation, whereas dorsal displacements were observed in feet with cavus or calcaneal deformity, which is connected with excessive lengthening of the calcaneal tendon (overcorrection). USG examination in recurrent clubfoot enables the evaluation of talonavicular repositioning (not possible on radiographs) in younger children two to five years old, and is helpful to better plan the range of the operation

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

Purpose: Congenital idiopathic clubfoot is the most common musculoskeletal birth defect developing during the fetal period, but with no known etiology. MYH 2, 3, 7, and 8 are expressed embryonically or perinatally, the period during which congenital idiopathic clubfoot develops; are all components of Type II muscle, which is consistently decreased in clubfoot patients; and are associated with several muscle contracture syndromes that have associated clubfoot deformities. In this study, we hypothesized that mutations in embryonic and perinatal myosin genes could be associated with congenital idiopathic clubfoot. Methods: We screened the exons, splice sites, and predicted promoters of 24 bilateral congenital idiopathic clubfoot patients and 24 matched controls in MYH 1, 2, 3, and 8 via sequence-based analysis, and screened an additional 76 patients in each discovered SNP. Results: While many SNPs were found, none proved to be significantly associated with the phenotype of congenital idiopathic clubfoot. Also, no known mutations that cause distal arthrogryposis syndromes were found in the congenital idiopathic clubfoot patients. Conclusion: These findings demonstrate that congenital idiopathic clubfoot has a different pathophysiology than the clubfoot seen in distal arthrogryposis syndromes, and defects in myosin are most likely not directly responsible for the development of congenital clubfoot. Given the complexity of early myogenesis, many regulatory candidate genes remain that could cause defects in the hypaxial musculature that is invariably observed in congenital idiopathic clubfoot. Significance: This study further differentiates congenital idiopathic clubfoot as distinct from other complex genetic syndromes that can present with similar deformities, and thus facilitates further research to improve the clinical diagnosis and treatment of congenital idiopathic clubfoot

A total of 38 relapsed congenital clubfeet (16 stiff, 22 partially correctable) underwent revision of soft-tissue surgery, with or without a bony procedure, and transfer of the tendon of tibialis anterior at a mean age of 4.8 years (2.0 to 10.1). The tendon was transferred to the third cuneiform in five cases, to the base of the third metatarsal in ten and to the base of the fourth in 23. The patients were reviewed at a mean follow-up of 24.8 years (10.8 to 35.6). A total of 11 feet were regarded as failures (one a tendon failure, five with a subtalar fusion due to over-correction, and five with a triple arthrodesis due to under-correction or relapse).

In the remaining feet the clinical outcome was excellent or good in 20 and fair or poor in seven. The mean Laaveg-Ponseti score was 81.6 of 100 points (52 to 92). Stiffness was mild in four feet and moderate or severe in 23.

Comparison between the post-operative and follow-up radiographs showed statistically significant variations of the talo-first metatarsal angle towards abduction. Variations of the talocalcaneal angles and of the overlap ratio were not significant.

Extensive surgery for relapsed clubfoot has a high rate of poor long-term results. The addition of transfer of the tendon of tibialis anterior can restore balance and may provide some improvement of forefoot adduction. However, it has a considerable complication rate, including failure of transfer, over-correction, and weakening of dorsiflexion. The procedure should be reserved for those limited cases in which muscle imbalance is a causative or contributing factor.

Aims: Aim of this study was to evaluate the clinical and radiological results after operative treatment of congenital clubfoot by the Cincinnati-approach. Methods: Between 1996– 2000 52 children with congenital clubfoot were operated with a peritalar release by using the Cincinnatti approach. 35 of them were male, 17 female. 24 had clubfeet on both sides. The age at operation was 3–17 months (mean 5,3 months). The age at follow up was 24–90 months (mean 58 months). In the follow-up at least 2 years after operative treatment the results were analysed by the score of McKay. In addition we evaluated the radiographs by the standard method of Simons. Results: In the postoperative clinical evaluation using the McKay-Score: we found in 35% excellent, 41% good, 21% fair, 2% poor, 1% bad results. The Simons-Score was used to evaluate the radiographic postoperative results. The talocalcaneal angle a.p. was in 19% < 20° (= incomplete correction), in 76% between 20° and 40° (= normal) and in 5% > 40° (= overcorrection). The talo-calcaneal angle lateral was in 8% < 30° (= incomplete correction), in 82% between 30° and 50° (= normal) and in 10% > 50° (= overcorrection). The position of the navicular bone in the apview was in 65% 0 (= normal), in 20% +1/+2 (= overcorrected but satisfactory), in 3% +3/+4 (= marked overcorrection, not satisfactory) and in 12% (−) (= incomplete correction). Conclusion: In conclusion by using this protocol we could show a high frequency of satisfactory results concerning function and cosmetics

The records of 82 patients (129 feet) with resistant clubfoot deformity treated surgically by means of different releases were retrospectively reviewed. There are many treatment regimes for clubfoot. Some authors recommend manipulation with minimal multi-stage surgery, whereas others recommend neonatal corrective surgery. However, objective comparison of different treatment programs is not easy because different criteria are used to evaluate the results.

Teratologic or neuromuscular clubfeet were not included in this revision. Between 1982 and 1998, 82 patients (27 girls, 55 boys) with 129 clubfeet underwent surgical treatment. All feet were initially treated with a serial long-leg cast for a minimum of four months. Mean age at the time of first surgery was 5.5 months (range 3.5 to 24). Minimum follow-up was two years.

Primary posterior release was performed on 105 feet. Subsequent medial release was performed on 16 feet, posteromedial release on three, and a subtalar (Cincinnati) release on three. Primary isolated posteromedial release was performed on 14 feet, and two of these required a subsequent subtalar (Cincinnati) release. Primary isolated medial release was performed on seven feet.

Primary isolated lateral release was performed on one foot and primary isolated subtalar (Cincinnati) release was performed on two feet. Subsequent derotative tibial osteotomy was performed in seven cases, wedge tarsectomy on four feet, triple arthrodesis on five, and calcaneocuboid fusion on one foot.

Residual varus was present in seven feet. Calcaneal gait caused by overlengthening of the Achilles tendon occurred in one foot, and residual equinus in two feet. Residual valgus heel was observed in three feet.

The surgeon must assess each foot and plan the surgery accordingly. A total release is not required for every foot.

Objective: Starting from results of studies made in the last ten years about the presence of myofibroblasts as the main cells involved into fibro-contractile disease, we investigated if this cells were also involved into pathogenesis of club foot deformities. Methods: Specimens removed surgically from five patients affected by congenital club foot were investigated. Each specimen was cut in three parts: the first, was fixed for optical microscopy in formalin; the second was fixed for trasmission electron microscopy (TEM) in glutaraldehyde and postfixed in osmium tetroxide; the third was immediately placed in cold (4°C) tissue culture medium. We have stained the first part of each specimen with: haematoxylineosin, Pasini, Masson, Congo red, Van Gieson, Martius scarlet blue and immunostaining for a-smooth muscle actin (a-SM actin). The third part of each specimen, dissected into 2mm. cubes, was place in standard medium and cultured at 37°C. On the cultured cells, we have valued metalloproteinases and a-SM actin expressions. Moreover, a part of culture cells, when reached confluence, were detached with trypsin-EDTA and centrifuged for 10 min. at 2000 rpm. to obtain a pellet, subsequently fixed for TEM. Results: Optical and electron microscopy have showed, only in one of our cases, the presence of myofibroblast’s clusters in the Henry’s nodule and in the medial and lateral fibrous nodules, that are characteristic nodule of congenital club foot. Conclusions: Starting from the results of our studies, we would like to study in detail the role of myofibroblast in the pathogenesis of club foot

1. An anatomical study of congenital club foot in various stages of foetal development is presented, and the literature is reviewed. 2. The most striking finding was deformity of the talus and in particular a change in its angle of declination. 3. That deformity was present in feet whose deformity could not be corrected by gentle manipulation; it was absent in feet whose deformity could be so corrected. 4. Abnormality of the tendon and insertion of the tibialis posterior muscle was found in most cases. 5. Speculations are advanced concerning the nature and cause of the talar deformity

Introduction and Aims: This study was undertaken to assess the long-term results of treatment of clubfoot by modified Turco’s Procedure.

Method: Thirty patients with 50 feet were treated by serial casting and postero-medial release for clubfeet, by modified Turco’s procedure. Eighteen patients with 33 clubfeet were available for the final follow-up. They were followed up for an average of 13.8 years, range of 10–16 years. There were two females and 16 males. All patients underwent serial plaster correction after birth until undergoing surgical correction. All procedures were carried out by the senior surgeon, using the same technique.

All patients were operated between the ages of 6–9 months. A modified Turco’s technique was used. A longer incision extending to the lateral border of tendo-achilles was used. The abductor hallucis was completely excised. No K wire was used for holding the correction. All children were left in plaster till they started walking. A modified splint and correction shoes were used in the post-operative period. There were no wound problems in any cases, either at the time of wound closure or later on.

Results: Patients were followed with clinical and radiological examinations. Three (9%) cases each had recurrence of heel varus and forefoot adduction. Three cases had some cavus deformity, while four cases had flat foot. All patients were noted to have calf muscle wasting. The results were assessed using Ponsetti’s score. The average Ponsetti score was 87.2 (range 49–98). Two feet out of 33 had recurrence of all the deformities. There were 27 good to excellent results. The most common problem was terminal restriction of dorsiflexion, but most of the patients were happy with the results. We believe that our treatment is safe and simple, giving satisfactory results in more than 80% and with minimal complications. The results are maintained over a long follow-up period.

Conclusion: We think that this modified approach helped reduce recurrence of one of the common deformities.

Introduction: Most physicians agree that initial treatment for a newborn child with clubfoot should be nonoperative. Some children with rigid deformities, however, may need a soft tissue release operation at an early age. The optimal timing of such surgery and for whom remain controversial questions. We prospectively followed patients treated in our clinic under temporal protocol and analyzed results in order to answer these questions.

Methods: From 1979 to 1989, 132 infants with 185 club-feet visited the Hokkaido Univ. before they were three months old. Eighty eight patients with 124 feet were followed over a 10 year period. The averaged follow-up period was 15.2 years. Corrective casts were applied for no longer than 3 months. If the lateral tibio-calcaneal (TC) angle became less than 90°, a Denis Browne splint was used. If this angle was still larger than 90°, postero-lateral release was performed within a month after casting. Surgery was also performed for children whose deformities continued increasing after conservative treatment. McKay’s scoring system was used to evaluate the final clinical results. The results of patients needing major revision surgery were evaluated “failure”.

Results: Forty-nine feet were treated conservatively. Of these 35 were evaluated as good or excellent and seven were evaluated as poor or failure. Forty-three feet were underwent surgery before one year of age; an additional 32 feet underwent surgery after one year of age. Thirty-three feet were evaluated good or excellent and 19 feet were evaluated as poor or failure. At 6 months of age the lateral TC angle of the patients treated non-operatively and evaluated as good or excellent was 68.4 ± 14.3° (Mean ± S.D.), and the lateral TC angle of patients who underwent surgery after one year of age and patients who were treated non-operatively but evaluated as poor or failure was 80.0 ± 9.2°. There are statistically significant difference between these two groups. The age at surgery of patients evaluated as good or excellent was 12.6 ± 12.4 months old, and that of patients evaluated as poor or failure was 5.1 ± 3.0 months old.There are also statistically significant difference between these two groups.

Conclusion: Our results suggest that surgery is indicated for patients whose TC angle at 6 months of age is greater than 70°, and that the optimal timing for soft tissue release is later than 8 months of age.

The assortment of primary operative techniques starts with posterior release and ends with the most sophisticated ones such as complete subtalar release. The proper selection of one of them is a key to success and has to be done on the basis of clinical and radiographic parameters.

Posterior release: The indication for this procedure is determined by persistent equinus. On AP and lateral radiographs the normal talocalcaneal angle is visible AP greater than 20; lateral greater than 35 degrees). On the lateral radiograph in corrected equinus or standing, the angle between the calcaneus and tibia should be smaller than 80 degrees. A physical examination con- firms equinus position more precisely. Attention should be paid to the possibility of iatrogenic rocker bottom deformity. In such cases posterior release should be combined with dorsal release of the calcaneocuboid and talonavicular joint.

Posteromedial release: Clinical indications for this procedure are hindfoot equinus and varus and passively corrected medial spin measured with a bimalleolar angle less than 85 degrees. This angle should be checked during surgery when the posteromedial release is completed. If overcorrection is not achieved, the procedure has to be extended in sequence to lateral release or complete subtalar release. Radiographic indications are as follows: diminished talocalcaneal angle on AP (less than 20 degrees) and/or on lateral radiographs (less than 35 degrees), as well as partial overlap of the talus and calcaneus on AP radiographs.

Posteromedial-lateral, posterolateral-medial and partial subtalar release: Indications for these techniques are the same as for posteromedial release. The difference concerns the not corrigible medial spin. The decision about which technique should be used is made before surgery, but its conversion during surgery to another one is possible and depends on obstacles appearing during release. Intraoperative radiographs may help in making the decision.

Complete subtalar release: The clinical indication for this technique is primarily stiff varus and medial spin. The selection of this procedure may be the result of the primary decision or incomplete correction after less extensive procedures. To overcome the obstacles, the talocalcaneal interosseous ligament must be completely cut. Radiographic indications are the same as for posteromedial- lateral or partial subtalar release. Complete overlapping of the talus and calcaneus on AP radiograph inclines the surgeon to choose this method.

All techniques mentioned can be extended to the correction of forefoot adduction. A metatarsal first ray angle lower than 70 degrees is indicated for correction. For small children, the opening of the cuneonavicular and first cuneometatarsal joint with a slight transposition of the tibialis anterior is preferred. In older children, open wedge osteotomy of the medial cuneiform is done. For correction of calcaneocuboid displacement, no open reduction is performed even if a +2 displacement of the cuboid is seen on AP radiograph, because self-existent reduction occurred. However, closed stabilisation of this joint by K-wire is performed. A stable subtalar complex can be rotated as a block during partial or complete subtalar release.

1. The results of seventy-six transfers of the tibialis anterior tendon to the outer side of the foot to prevent relapse of congenital club foot are reviewed. 2. There were relapses in fifty-two of the seventy-six feet on which the operation had been performed. 3. The equinus component of the deformity is the dominant feature in all the relapses. 4. A test for occult equinus is described. 5. The factors contributing to the high relapse rate are discussed

Purpose: Congenital idiopathic clubfoot is the most common congenital deformity in children and can be a major cause of disability for the child as well as an emotional stress for the parents. The Ponseti method of club-foot correction, consisting of serial manipulations and casting, is now the gold standard of treatment. It has traditionally been described using plaster of Paris (POP) above-knee casts, which are affordable, stiff, and easily moldable. Recently, semi-rigid fiberglass softcast (FSC, 3M Scotchcast) has grown in popularity due to ease of removal, durability, lighter weight, better appearance, ease of cleaning, and water resistance. There are currently no randomized controlled trials to prove its efficacy with respect to POP. The purpose of this study was to determine the influence of choice of cast material on the correction of congenital idiopathic clubfeet using the Ponseti method. Method: A prospective, randomized controlled trial. Based on the results of a pilot study performed at our centre, a sample size of 30 patients was determined to be appropriate. Thirty consecutive patients presenting with congenital idiopathic clubfoot were randomized into POP and FSC groups prior to commencement of treatment with the Ponseti Method. Clubfeet secondary to non-idiopathic diagnoses were excluded. The Pirani classification was used to determine clubfoot severity (less severe, < =4; severe > 4), and for surveillance during casting. The primary outcome measure was the number of casts required to correct the clubfoot deformities to the point where the foot was ready for a percutaneous tendo-achilles tenotomy (TAL) or when the foot was completely corrected (Pirani=0). Secondary outcome measures include: number of casts by clubfoot severity, ease of cast removal, number of methods needed to remove casts, need for percutaneous tendo-achilles tenotomy. Results: Of the 30 patients enrolled, 13 (40%) were randomized to POP and 18 (60%) to FSC. No patients were lost to follow-up. In the POP and FSC groups, eight (67%) and 11 patients (61%) underwent a TAL, respectively. In general, there were no differences in the mean number of casts required for clubfoot correction between the two groups (p=0.13). When analyzed by clubfoot severity, the mean number of casts for each material in the less severe group was equal (3 casts). In the severe group, the mean number of casts in the FSC group (6.4 casts) was considerably higher than for the POP group (4.7 casts) but our study was underpowered to verify this result. According to parents, POP was harder to remove than FSC (p< 0.001). Conclusion: In general, FSC was found to be as efficacious as POP in the correction of idiopathic clubfeet by the Ponseti Method and was the preferred cast material by parents. For stiffer, more severe feet, POP seemed to show a faster correction time than FSC

1. The results of treatment of 186 club feet have been reviewed.

2. Early strong repeated manipulation and splintage produced correction in all, but only sixty-five out of 186 remained acceptable at three years. The other 121 relapsed.

3. Relapse occurred in the first year in eight, between twelve and eighteen months in twenty-five, between eighteen and twenty-four months in twenty-three, and between twenty-four and thirty-six months in sixty-five.

4. Relapse was slightly commoner when treatment began after the first month of life.

5. Relapse was treated either by manipulation and plaster or by soft-tissue correction, leaving fifty-two out of 121 acceptable at three years and sixty-nine which were not acceptable (this includes those in plaster after soft-tissue correction, necessitated by relapse around the ages of two and a half and three and is thus adversely loaded).

6. The three year results in 186 feet were studied: 63 per cent were acceptable and 37 per cent were not. Five year results in eighty-seven feet were studied: 87·4 per cent were acceptable and 12·6 per cent were not.

7. Soft-tissue correction is described. It produced 89 per cent acceptable feet but 11 per cent relapses in 280 operations.