Guest guest Posted March 25, 2006 Report Share Posted March 25, 2006 , Thanks for remembering that the AAOS convention was this week, I forgot. Here are the printouts of the 12 podium presentation abstracts on Clubfoot from the meeting. Ponseti method related Papers are presented at the beginning of this printout and are not in order of their presentation. At least eight of the twelve papers presented were Ponseti method related. Long-Term Follow-Up of Clubfeet Patients Treated With Extensive Soft- Tissue Release Surgery Paper No: 241 Thursday, March 23, 2006 10:30 AM - 10:36 AM Location: McCormick Place S104 Barrett Dobbs, MD Saint Louis MO (a - Shriners Hospital for Children, Jewish Hospital Foundation) ________________________________________ Our data support a correlation between the extent of soft-tissue release surgery and the degree of functional impairment. Repeated soft- tissue release operations in this study resulted in stiff, painful, and arthritic feet that significantly impaired quality of life measures. Although favorable results of foot function have been shown in a long- term (greater than twenty-five year) follow-up of idiopathic clubfoot patients treated with the Ponseti method of serial manipulations and castings, no follow-up of this length is available for clubfoot patients treated with extensive soft-tissue release surgery. Forty-five idiopathic clubfoot patients (73 clubfeet) treated with either a posterior release and plantar fasciotomy (8 patients) or a Turco-type extensive posterior, medial, and lateral extensive soft- tissue release surgery (37 patients) were followed for a mean of30 years (range,25 to32 years). Patients were evaluated by detailed lower extremity examination, radiographic evaluation including osteoarthritic grading, and three independent quality of life questionnaires, including the short form 36-medical outcome scale (SF - 36 MOS). Significant limitation of foot function was noted in the majority of patients in both treatment groups and was consistent across three independent quality of life questionnaires. No statistically significant difference between groups was noted with regard to results of quality of life measures (p>0.68), ankle range of motion and heel position (p>0.73), or radiographic examination (p>0.45). Thirty-nine of forty-five patients had more than one surgery on their affected clubfoot at the time of latest follow-up. Patients treated with only one surgery had better ankle and subtalar joint range of motion (p<0.005) compared to those patients who had multiple surgical procedures. The present study demonstrates poor long-term foot function in patients with clubfoot treated with extensive soft-tissue release surgery. Our data support a correlation between the extent of soft- tissue release surgery and the degree of functional impairment. Repeated soft-tissue release operations in this study resulted in stiff, painful, and arthritic feet that significantly impaired quality of life measures. Natural History And The Effects Of Foot Hyperabduction In Clubfoot Relapses Paper No: 244 Thursday, March 23, 2006 10:54 AM - 11:00 AM Location: McCormick Place S104 Lovell, BS Iowa City IA (n) Lori Dolan, PhD Iowa City IA (n) Ignacio V Ponseti, MD Iowa City IA (n) A Morcuende, MD Iowa City IA (n) ________________________________________ Maximally abducting the last cast and brace in the Ponseti method significantly reduced rates of relapse and extensive corrective surgery. This study evaluates the natural history of clubfoot relapses after successful correction with the Ponseti method and the effect of foot hyperabduction on relapse prevention. Consecutive case-series from 1948 through December 2000. A total of 320 patients (502 clubfeet) having no previous foot surgery other than tendoachilles tenotomy (7 percent of feet) were evaluated. Two groups were created based on abduction in the last cast and brace. Group I: clubfeet (1948-1984) did not receive maximum abduction (n=291). Group II: clubfeet (1991-2000) with maximum abduction (n= 211). 70 percent were male, 23 percent had family history, 57 percent had bilateral deformity. 33 percent (95/288) of group I had previous conservative treatment at outside institutions versus 77 percent (163/211) of group II. Casting and tenotomy corrected 286/291 (98 percent) of group I and 209/211 (99 percent) of group II. In group I, 170 (58 percent) clubfeet relapsed compared to 59 (28 percent) in group II (p<0.0001). 91 percent of relapses occur before five years of age. Noncompliance remained similar at 65 percent in group I and 61 percent in group II. Relapses were related to non-compliance with the brace (p=0.001). Extensive surgical releases decreased from 11 percent in group I to 4 percent in group II (p=0.004), and anterior tibialis transfer from 51 percent to 15 percent (p<0.0001). Less than 10 percent of feet will relapse after the 6th birthday, but the tendency to relapse may persist until 11 years of age. Maximum abduction of the last cast and brace significantly reduced relapses and the need for extensive corrective surgery. 100 Consecutive club feet treated with the Ponseti technique Paper No: 246 Thursday, March 23, 2006 11:06 AM - 11:12 AM Location: McCormick Place S104 Minoo Keki Patel, MD Malvern VIC Australia (n) Clare Luca, RN Melbourne VIC Australia (n) _____________________________________ Primary correction was obtained in all cases, with a recurrence rate of 6% and tendon transfer rate of 10%. The Ponseti technique of club foot treatment consists of serial manipulation and casting. Most cases require a percutaneous Achilles tenotomy. Very few cases, if any, require surgical correction. This paper reports the 2- 4 year results in the first 100 consecutive cases of idiopathic club feet treated with the Ponseti technique at one centre. All idiopathic club-feet presenting at the paediatric orthopaedic clinic from 2001 to 2005 were prospectively enrolled in the study. The feet were graded using the Pirani score. Weekly serial casting using the Ponseti technique was performed till 60º forefoot abduction was achieved. Achilles Tenotomy was performed if at least 20º dorsi- flexion was not obtained. The children were fitted with Dennis-Brown abduction orthoses set at 45º, and calf length straight last shoes when the child started walking. Tibialis anterior tendon transfer was performed at age 2½ for persistent dynamic adductus in an otherwise well corrected foot. 100 idiopathic club feet in 69 consecutive babies were treated, with a minimum 2 year follow-up. Achilles tenotomy rates rose from 91% in the 2001 to 98% in the 2005, with a decrease in delayed tenotomy from 1.5% to 0. Correction without surgery was obtained in all cases. There were 7 cases of recurrence. Partial forefoot recurrence with rigid adductus was seen in 3 cases, hind foot varus recurrence was seen in 2 cases, and fore- and hind foot recurrence in 2 cases. Residual internal tibial torsion was seen in 1 case. Full shoe compliance was seen in 85% cases. 5% cases had persistent shoe non-compliance. 5 cases had a tibialis anterior transfer, with 5 more waiting for the surgery at age 2½. All 14 cases presenting late (after age 6 months) corrected successfully. The Ponseti method offers a reliable alternative to traditional casting and or surgery. Shoe modifications such as a cut-out heel counter and decrease abduction to 45º in the DB orthoses improved shoe compliance, as did peer group support. All recurrences were in cases treated in the first year of the study, perhaps representing our learning curve. Achilles Tenotomy is now an integral part of our protocol for all but the mildest cases. In cases of recurrence relatively minor surgical intervention was required. Overall parent satisfaction was close to very high. Gait Analysis of Children Treated Non-Operatively for Clubfoot: Physical Therapy vs. Ponseti Casting Paper No: 247 Thursday, March 23, 2006 11:18 AM - 11:24 AM Location: McCormick Place S104 Ron El-Hawary, MD Halifax NS Canada (n) Lori A Karol, MD Dallas TX (n) Jeans, MSc Dallas TX (n) B s s III, MD Dallas TX (n) ________________________________________ Ponseti casting and the French method of physical therapy both yielded equal rates of normal sagittal plane ankle motion. Currently, clubfoot is initially treated with non-operative methods including Ponseti casting and the French physical therapy program (PT). Our purpose was to evaluate the function of children treated with these techniques. Seventy-six idiopathic clubfoot patients were enrolled. Successful non- operative outcomes were achieved in 32 (44 feet) patients treated with casting and 44 patients (66 feet) treated by PT. Initial Dimeglio scores were 10-17. At average age 2.3 years (1.9-3.3yr), subjects' gait was evaluated with a VICON 512 motion analysis system. Cadence and kinematic data was classified as abnormal if it fell outside of one standard deviation from normal. No statistical differences for cadence parameters were found between the two groups. Two kinematic patterns were identified: Children treated with PT walked with knee hyperextension (41% of feet)*, equinus (17%)*, and foot-drop (28%)*; whereas zero casted patients walked in equinus and only one demonstrated foot-drop. In contrast, the casted group demonstrated increased stance dorsiflexion (47%)* and calcaneus (18%). More PT feet had increased internal foot progression angle (34% vs. 13%)* and increased shank-based foot rotation (56% vs. 33%)*. Both groups had equal rates of normal sagittal-plane ankle motion (59% PT vs. 55%). [*p<0.05]. Half of the two year-old patients treated non-operatively for clubfoot had normal sagittal-plane ankle motion. Less than 20% in each group experienced calcaneus and equinus gaits, respectively. These differences may be the result of performing percutaneous tendo Achilles lengthening as part of the Ponseti casting technique, but not as part of the PT program. Ponseti's Manipulation in Neglected Clubfoot-Are we Joking? Paper No: 248 Thursday, March 23, 2006 11:24 AM - 11:30 AM Location: McCormick Place S104 Shah Alam Khan, MD New Delhi India (n) ________________________________________ Ponseti's method is well known for clubfoot in neonates and infants. We present the applicability of this technique in neglected clubfoot. Ponseti's manipulation and casting is a well known technique in the management ofclubfoot in neonates. Application of this technique in children with neglected CTEV (i.e age more than 4 years) is not reported in world literature. We present a series of 19 children (23 feet) with neglected i.e untreated CTEV till the age of 4 years, treated by the Ponseti's method of casting. Ours was a prospective observational study. A total of 23 neglected clubfeet were included in the study. The average age in the study was 5.7 years.Clubfoot was classified on the basis of severity using the Goldners classification. Feet were manipulated using the Ponseti's method of manipulation. An average of 8.5 casts were used. Tenotomy of the Tendo Achilles was done after an average of 6.5 casts.Limited x- rays were used in pre/post op follow-up( mainly to assess flat top talus). Patients were followed-up for an average of 4.7 years after the last cast. All patients were maintained in Pronator shoes in the day and Wheaton brace in the night till the age of 10 years. All feet were evaluated using the Dimeglio scoring. Average follow-up of 4.7 years was done. Correction was not achieved in 5 of the 23 feet. Late relapse after 2 years was seen in 2 cases. There was good correction in 16 cases and Dimeglio score was <25 at the end of 1 year of treatment.The dimeglio score was <23 at the end of 3 years in 15 feet and was <20 at end of 4 years in 14 feet. The problem of neglected clubfoot is rampant in developing countries. Limited treatment options exsist for neglected clubfeet in old children.We found that Ponseti's method of manipulation is an equally effective technique in the management of neglected clubfoot. Although our initial results are encouraging, predictability of effectiveness in neglected cluboot can only be established by analysing long term results. Neuromuscular Disease As The Cause Of Late Clubfoot Relapses Paper No: 249 Thursday, March 23, 2006 11:30 AM - 11:36 AM Location: McCormick Place s104 Lovell, BS Iowa City IA (n) Lori Dolan, PhD Iowa City IA (n) Ignacio V Ponseti, MD Iowa City IA (n) A Morcuende, MD Iowa City IA (n) ________________________________________ Late relapses in patients with idiopathic clubfoot may represent the onset of a previously undiagnosed neuromuscular disease, and should be thoroughly evaluated. Following correction with the Ponseti method some idiopathic clubfeet still will relapse after seven years of age. A better understanding of the cause for these late-relapses will greatly help in the management of this condition. Consecutive case-series from 1948 through December 1984 including 209 patients (321 clubfeet). Initial corrective treatment, age at relapse, neurological evaluation, and final treatment for the relapse were recorded. There were 13 patients having relapses after the seventh birthday, representing 6 percent of all patients. In 4 of these patients (6 clubfeet) a neuromuscular disease was diagnosed, representing 31 percent of the late relapses. These patients were initially treated with an average of 4 casts (range: 2-6) with 2 requiring an Achilles tenotomy. Patients used the brace for an average of 4 years. The average age at the relapse prior to the suspicion of neuromuscular disease was 8.9 years (range: 7.5-10.9 years). Two patients had family history of neuromuscular disease (myotonic dystrophy and multiple core disease). In the other two cases (Charcot-Marie-Tooth Disease type IA and myasthenia gravis) neuromuscular disease was not suspected until 1.3 and 2.5 years after the relapse, respectively. All four patients had an anterior tibialis transfer, three had a plantar fasciotomy, and two had peroneus longus to brevis transfers. One patient required a subsequent posterior tibialis transfer and another patient a triple arthrodesis (myotonic dystrophy). Late relapses in patients with idiopathic clubfoot may represent the onset of a previously undiagnosed neuromuscular disease, and should be thoroughly evaluated. Results of a Disease Specific Instrument for Clubfoot Outcome in a Mixed Treatment goup of Children. Paper No: 250 Thursday, March 23, 2006 11:42 AM - 11:48 AM Location: McCormick Place S104 Frederick R Dietz, MD Iowa City IA (n) Margaret C Tyler, MA, MSW Iowa City IA (n) C Damiano, DDS (n) ________________________________________ The Roye clubfoot DSI performed well and showed significantly better results with 'joint sparing' treatment of clubfoot in mid childhood. The DSI for clubfoot developed by Roye et al. (2001) was employed in a cohort of patients of similar age to those reported by Roye who had both joint sparing (Ponseti technique) and joint invading (PR and PMRL) surgeries to assess the discriminatory ability of the DSI and to assess whether different treatments resulted in measurably different outcomes in mid-childhood. The Disease-Specific Instrument for patients with clubfoot consists of ten items designed to measure outcomes of treatment for clubfoot in terms of overall satisfaction, appearance, pain, and physical limitations with two distinct subscales: satisfaction and function. Outcomes for patients treated with manipulation and casting +/- anterior tibial tendon transfer were compared with patients treated by posterior release or PMR.62 patients were identified and asked the DSI for clubfoot questions in phone interviews. The mean age of patients was8.6 years (SD2.2 yr). Internal consistency reliability (Cronbach's alpha) for the DSI function and satisfaction subscales and for the total scale were very good. Comparison of manipulation and casting and anterior tibial tendon transfer patients (the 'joint sparing' treatments) with posteromedial release or posterior release (the 'joint invasive' treatments) showed better outcomes for the 'joint sparing' treatment patients. Function scale comparison was 87.2 vs. 75.6 (p=0.04); Satisfaction scale comparison showed 83.1 vs. 74.6 (p>0.05) and the Total score comparison was 85.2 vs. 75.1 (p=0.04) The DSI developed by Roye et al. performed well regarding internal consistency as previously reported. The DSI showed significantly better results with 'joint sparing' treatment of clubfoot even in mid childhood. •A Randomized, Double Blind Study of Botox as an Adjunct to Manipulation and Casting for Clubfoot Paper No: 251 Thursday, March 23, 2006 11:48 AM - 11:54 AM Location: McCormick Place S104 Jay Cummings Jr, MD ville FL (n) E Shanks, MD (n) ________________________________________ There was no significant difference (T test and Chi-square procedures) between the Botox group and the placebo group in the outcomes measured. To compare the outcomes of treatment with and without Botox as an adjunct to the initial serial manipulation and casting for congenital clubfoot. After IRB approval and informed consent, 20 newborns (age 0-32 days) with Dimeglio III congenital clubfeet (n=32) were randomized into either Botox or placebo groups. All clubfeet underwent serial manipulation and casting according to the Ponseti technique. Outcomes measured were days in cast to correction of deformity (judged clinically and radiographically), the need for percutaneous Achilles tenotomy to achieve correction, and recurrence requiring further treatment within six months of completion of initial correction. There was no significant difference (T test and Chi-square procedures) between the Botox group and the placebo group in the outcomes measured. Botox does not appear to speed correction, reduce the need for percutaneous Achilles tenotomy, or decrease the chance of relapse after treatment when used as an adjunct to serial manipulation and casting for congenital clubfoot. Previous nonrandomized or blinded studies have concluded that Botox is as effective as percutaneous tenotomy in children treated with the serial manipulation and casting for congenital clubfeet. We were unable to confirm the conclusions of those studies. Averaged 12 Year Follow Up Results Of Circumferencial Subtalar Release For Congenital Club Foot Paper No: 242 Thursday, March 23, 2006 10:36 AM - 10:42 AM Location: McCormick Place S104 Satoru Ozeki, MD Koshigaya Japan (n) Masataka Kakihana, MD Koshigoya Japan (n) Yutaka Nohara, MD Koshigaya Japan (n) Shuji Yamasaki, MD Sapporo Japan (n) Kiyoshi Kaneda, MD Bibai-city, Hokkaido Japan (n) ________________________________________ Delayed surgical timing and preserved interosseous talo-calcaneal ligament in circumferential subtalar release for congenital clubfoot contributed for good clinical results. There have been a few report on the long-term follow-up of extensive subtalar release after sufficient conservative treatment for congenital clubfoot. We delayed surgical timing until the children were ready to walk and preserved the central half of the interosseous talo-calcaneal ligament (ITCL) as an axis for the subtalar motion. Long-term results of the circumferential subtalar release (STR) were investigated. From 1986 to 1996, 109 infants with 144 clubfeet visited our clinic before 3 months old. All children were initially treated conservatively with a 3-dimensional corrective cast followed with a Denis-Browne splint. Fifty-seven children with 72 feet then underwent circumferential STR through a Cincinnati incision. The averaged age at surgery was 2.9 years old (9 months - 14 years old). McKay's scoring system was used to evaluate the final clinical results. Forty-three patients with 55 feet were followed over a 7-year period. The averaged follow-up period was 12.2 years. The clinical results were as follows; excellent: 25 feet; good: 21 feet: fair: 8 feet; poor: 1 foot. Radiological examination demonstrated the sufficient correction for the hind foot; the averaged anterior and lateral talo-calcaenal angles were 30 and 27 degrees respectively. The most common residual deformity was forefoot adduction involving forefoot pronation to the calcaneus. Circumferential STR maintained an acceptable 3-dimensional correction in hindfoot. During conservative treatment, care should be taken to prevent forefoot pronated deformity. To obtain good correction, surgical release does not stand alone; it is also a product of conservative treatment. The Operatively Treated Clubfoot: Long-Term Follow-Up with Gait Analysis Paper No: 243 Thursday, March 23, 2006 10:42 AM - 10:48 AM Location: McCormick Place S104 S Khazzam, MD Columbia MO (n) Jae Young Roh, MD (n) Long, MS Milwaukee WI (n) Ken N Kuo, MD Oak Brook IL (n) A , MD Chicago IL (n) Sahar Hassani, MS Chicago IL (n) Gerald F , PhD Milwaukee WI (n) ________________________________________ The purpose of this study is to examine segmental foot motion during gait of patients who have undergone surgical clubfoot correction. Clubfoot (talipes equinovarus) is a complex foot deformity characterized by adduction, inversion, and equinus. The goal of surgical treatment is a pain-free, functional, plantigrade foot which allows development of a normal gait pattern. The purpose of this study is to examine segmental foot motion during gait of patients who have undergone clubfoot correction. The four-segment Milwaukee Foot Model (MFM), including radiographic assessment, was utilized for kinematic analysis. This is a prospective study consisting of 17 patients (15M, 2F, mean age 16y; 25 feet) who underwent surgical correction for clubfoot deformity (posteromedial soft-tissue release) by one surgeon between 1985 and 1987 (mean age 6.7months; mean follow-up 15.8y). A group of 25 adult patients (13M, 12F, mean age 41y) with no foot pathology was used as a normal control. International Clubfoot Study Group Outcome Evaluation (ICFSG) and AOFAS hindfoot and forefoot evaluations were obtained for all patients. Temporal and three-dimensional kinematic parameters were obtained via the MFM. The Clubfoot group showed significant differences as compared to Normal with increased stance duration, and decreased stride length, cadence and walking speed (p<0.05). Significantly decreased range of motion was seen in all foot segments throughout the gait cycle (p<0.05). Kinematic changes were significant and included hindfoot plantarflexion and internal rotation shifts (p<0.05) throughout the gait cycle. The forefoot demonstrated reduced plantarflexion (p<0.01) and increased valgus (p<0.05) position throughout the gait cycle. 23 of 25 feet revealed ICFSG scores as good to excellent. Clinical evaluation and functional scores indicated functionally successful outcome over the long term. Kinematic analysis revealed subtle deficits in motion patterns which may be useful in further assessing functional level. We conclude that the 3D ROM and temporal data provided by the MFM is useful for quantifying long-term outcomes following surgical correction of clubfoot deformity. Congenital clubfoot in twins Paper No: 245 Thursday, March 23, 2006 11:00 AM - 11:06 AM Location: McCormick Place S104 Vilhelm Engell, MD Vejle Denmark (n) Mikkel Andersen, MD Odense C Denmark (n) Damborg, MD Odense Denmark (n) Kirsten O Kyvik, MD, PhD Odense Denmark (n) Karsten Thomsen, MD Odense Denmark (n) ________________________________________ Out of 46,418 twins 94 reported to have congenital clubfoot with pair- and proband-wise concordances indicating a partly genetic etiology. The aetiology of congenital clubfoot is unclear. Although studies on populations, families, and twins suggests a genetic component the mode of inheritance does not comply with distinctive patterns. In 1939 Idelberger reported the concordance rates in twins to be 0.33 for monozygotic (MZ) and 0.03 for dizygotic (DZ). The purpose of this study was to a congenital clubfoot twin cohort that enables us to provide estimates of concordance with a higher accuracy than seen before. From the Danish Twin Reigistry all 46,418 twins born from 1931 through 1982 were asked 'Were you born with clubfoot?' 46,418 twins received and 75% returned the questionnaire. Ninety-four answered 'yes' giving an overall self-reported prevalence of 0.0027 (c.i.l. 0.22-0.34%). Out of 55 complete twin pairs 4 were concordant, 2 mz and 2 dzss. The pair-wise concordance was 17% (c.i.l. 2%-48%) for mz and 5% (c.i.l. 0.6%-18%) for all dz. The probant wise concordance was 29% (c.i.l. 7%- 51%) for mz and 17% (c.i.l. 5%-29%) for dz. We have found an evidence of a genetic component in congenital clubfoot. However non-genetic factors must play a predominant role. Role of calcaneocuboid fusion in children undergoing talectomy Paper No: 252 Thursday, March 23, 2006 11:54 AM - 12:00 PM Location: McCormick Place S104 Yi-Meng Yen, MD Venice CA (n) Marinis Pirpiris, MD Melbourne VIC Australia (n) E Ching, MD Ventura CA (n) Craig Kuhns, MD University City MO (n) Norman Yoshinobu Otsuka, MD Los Angeles CA (n) ________________________________________ The management of the child with a severe, rigid equinovarus foot by talectomy should include addition of a concomitant calcaneocuboid fusion. The aim of management of the child with a severe, rigid equinovarus foot is to provide a foot, which is plantigrade and painless, with the ability to be placed within standard footwear. We identified a retrospective cohort of 17 children with a mean age at surgery of 5.6 years (range 2.3-9.6 years) that underwent 31 talectomy procedures (14 isolated talectomies and 17 combined talectomy and calcaneocuboid fusion for the management of their severe, rigid equinovarus feet. The average follow-up was 9.7 years (range 2.3-9.5 years) and 3.8 years (range 2.8-9.6 years) respectively. Assessing the development of post-operative midfoot adductus and hindfoot varus and equines deformities, we determined that the addition of calcaneocuboid arthrodesis prevented the development of adductus, varus, and equines deformities in the longer-term (p<0.0.001, p<0.05, p=0.01 respectively). Furthermore assessing foot pain and the ability to tolerate braces, we determined that significantly fewer children that underwent a concomitant calcaneocuboid fusion had recurrent foot pain with weightbearing (p<0.001) and required revision surgery for pain or deformity (p<0.001). The addition of a concomitant calcaneocuboid fusion to a talectomy procedure has significantly better longer-term results. The original source for all of the papers can be seen at http://www3.aaos.org/anmeet2006/podium/ppr06_23.cfm > > There were a lot of presentations on clubfoot at the AAOS meeting in > Chicago this week. > Here is a link to the podium presentations on Thursday (I counted 12 > presentations on clubfoot): > http://www3.aaos.org/anmeet2006/podium/ppr06_23.cfm > > Here's the link to the main page about the meeting in general: > http://www.aaos.org/wordhtml/am2006.htm > > Regards, > & (3-16-00, left clubfoot) > Quote Link to comment Share on other sites More sharing options...
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