The Experts below are selected from a list of 1005 Experts worldwide ranked by ideXlab platform
In Ho Choi - One of the best experts on this subject based on the ideXlab platform.
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what factors influence union and refracture of congenital pseudarthrosis of the tibia a multicenter long term study
Journal of Pediatric Orthopaedics, 2018Co-Authors: Hitesh Shah, In Ho Choi, Benjamin Joseph, Binu Valsalakumari Sreekumaran Nair, Devaki B Kotian, Benjamin S Richards, Charles E Johnston, Vrisha Madhuri, Matthew B DobbsAbstract:Objective: To identify factors influencing union of congenital pseudarthrosis of the tibia (CPT), refractures, and integrity of the tibia at maturity. Methods: Data of 119 children operated for Crawford-type IV CPT and followed-up till skeletal maturity were analyzed. Logistic regression and recursive partitioning analyses were used to test associations between several variables and the outcome. Results: Primary union occurred in 86% of children. At maturity, 69% remained soundly united. The odds ratio for failure of primary union was 3.89 (95% confidence interval, 1.05-14.40; P=0.042) when bone morphogenetic protein was used, and children who had a combination of the Ilizarov Technique and intramedullary nailing were at risk for unsound union at maturity (odds ratio, 6.19; 95% confidence interval, 1.24-30.83; P=0.026). No other association reached statistical significance. On recursive partitioning, use of the Ilizarov Technique, transfixing the ankle and subtalar joints, use of cortical graft and not operating on the fibula were associated with a better outcome; use of bone morphogenetic protein and combining intramedullary nailing with the Ilizarov Technique were associated with poor results. Conclusions: A larger sample is needed to confirm which factors truly influence the outcome of CPT. This may be feasible if data are collected prospectively through a multicenter registry.
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Ilizarov treatment of congenital pseudarthrosis of the tibia a multi targeted approach using the Ilizarov Technique
Clinics in Orthopedic Surgery, 2011Co-Authors: In Ho Choi, Hyuk Ju MoonAbstract:Congenital pseudarthrosis of the tibia (CPT) is one of the most challenging problems in pediatric orthopaedics. The treatment goals are osteosynthesis, stabilization of the ankle mortise by fibular stabilization, and lower limb-length equalization. Each of these goals is difficult to accomplish but regardless of the surgical options, the basic biological considerations are the same: pseudarthrosis resection, biological bone bridging of the defect by stable fixation, and the correction of any angular deformity. The Ilizarov method is certainly valuable for the treatment of CPT because it can address not only pseudarthrosis but also all complex deformities associated with this condition. Leg-length discrepancy can be managed by proximal tibial lengthening using distraction osteogenesis combined with or without contralateral epiphysiodesis. However, treatment of CPT is fraught with complications due to the complex nature of the disease, and failure is common. Residual challenges, such as refracture, growth disturbance, and poor foot and ankle function with stiffness, are frequent and perplexing. Refracture is the most common and serious complication after primary healing and might result in the re-establishment of pseudarthrosis. Therefore, an effective, safe and practical treatment method that minimizes the residual challenges after healing and accomplishes the multiple goals of treatment is needed. This review describes a multi-targeted approach for tackling these challenges, which utilizes the Ilizarov Technique in atrophic-type CPT.
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application of the Ilizarov Technique to the correction of neurologic equinocavovarus foot deformity
Clinical Orthopaedics and Related Research, 2011Co-Authors: In Ho ChoiAbstract:Background The treatment of rigid equinocavovarus foot deformities caused by neurologic disorders is often difficult and relapse is common.
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isolated congenital pseudarthrosis of the fibula clinical course and optimal treatment
Journal of Pediatric Orthopaedics, 2006Co-Authors: In Ho Choi, Chin Youb ChungAbstract:: The purposes of this study were to determine the clinical course of isolated congenital pseudarthrosis of the fibula (ICPF) and to establish optimal treatment guidelines for this disease. Thirteen fibulae in 12 patients with ICPF were followed for an average of 6.2 years. Twelve of the 13 fibulae were regarded to originally have had a pre-pseudarthrotic condition. Five fibulae remained intact during follow-up, but 8 developed pseudarthrosis. Two cases with established pseudarthrosis were observed for ankle alignment change without intervention, and in 4 cases successful fibular osteosynthesis maintained the ankle alignment. The remaining 2 adolescent cases presenting with ankle valgus were treated using the Ilizarov Technique and distal tibiofibular synostosis. ICPF follows a unique clinical course, which should be taken into consideration along with fibular status, ankle alignment, and patient age when planning treatment.
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Ilizarov treatment for equinoplanovalgus foot deformity caused by melorheostosis
Clinical Orthopaedics and Related Research, 2003Co-Authors: In Ho Choi, Chin Youb ChungAbstract:Melorheostosis often is disabling because of progressive contracture of the joint and soft tissue involved. Operative intervention often is hazardous and patients also have recurrences. A 14-year, 2-month-old boy, who presented with a recurrent equinoplanovalgus deformity of the right foot caused by melorheostosis, was treated successfully using the Ilizarov Technique, including distraction osteotomy in the calcaneus. The patient had a painless, plantigrade, and functional foot at age 18 years.
Maurizio A Catagni - One of the best experts on this subject based on the ideXlab platform.
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limb lengthening and deformity correction by the Ilizarov Technique in type iii fibular hemimelia an alternative to amputation
Clinical Orthopaedics and Related Research, 2011Co-Authors: Maurizio A Catagni, Makram Radwan, Luigi Lovisetti, Francesco Guerreschi, Nabil A ElmoghazyAbstract:Background Fibular hemimelia is partial or total aplasia of the fibula; it represents the most frequent congenital defect of the long bones. It usually is associated with other anomalies of the tibia, femur, and foot.
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preliminary experience with Ilizarov method in late reconstruction of radial hemimelia
Journal of Hand Surgery (European Volume), 1993Co-Authors: Maurizio A Catagni, Robert M Szabo, Roberto CattaneoAbstract:We report the outcome of ulnar lengthening with the Ilizarov Technique in five adults with radial hemimelia and previous wrist centralization. The indications for ulnar lengthening in these patients were either a functional deficit due to the short ulna or poor appearance that caused the patient significant unhappiness. All patients had a successful lengthening of the ulna, with a gain in length from 4 to 13 cm; however, the procedures were prolonged (7 to 25 months), and all patients experienced complications. At the time of follow-up examination no patient had residual pain or paresthesias. In four of five patients, although ulnar lengthening resulted in somewhat stiffer digits, it improved function of the extremity as a whole. When asked if they would repeat the lengthening, knowing what they know now, all five replied that they would. The technical difficulties encountered in these cases suggest a cautious approach to ulnar lengthening. This is a long, arduous, painful process that requires a psychologically robust patient. If the ulna is very short preoperatively, lengthening can enhance the volume of space accessible to the hand and in that way improve function.
Kanit Sananpanich - One of the best experts on this subject based on the ideXlab platform.
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the locking compression plate as an external fixator for bone transport in the treatment of a large distal tibial defect a case report
Injury-international Journal of The Care of The Injured, 2007Co-Authors: Theerachai Apivatthakakul, Kanit SananpanichAbstract:Surgical reconstruction of tibial bone defects presents a significant challenge for the orthopaedic surgeon. The bone defect is usually a result of high-energy trauma or of debridement for osteomyelitis. These defects are often accompanied by major soft-tissue injuries which limit the functional outcome independently of the actual loss of tibial bone. Conventional bone graft and free vascularised fibular grafting are methods of treatment of large defects after severe open fractures. The Ilizarov Technique of segmented bone transport of the tibia involving a circular ring external fixator has also been used for tibial defects, with acceptable outcome. Ipsilateral fibular transfer with the Ilizarov frame is another alternative treatment for massive tibial bone loss, and yields favourable results. The main disadvantages of the Ilizarov method are the lengthy treatment time and the long-term disability. Bone transport either over unreamed
T A Dar - One of the best experts on this subject based on the ideXlab platform.
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JOURNAL OF MEDICAL CASE REPORTS
2013Co-Authors: Altaf A. Kawoosa, Shabir Ahmed Dhar, Mohammed Farooq Butt, Shareef A Wani, Mohammed Ramzan Mir, T A DarAbstract:Stable relocation of the radial head without annular ligament reconstruction using the Ilizarov Technique to treat neglected Monteggia fracture: two case report
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stable relocation of the radial head without annular ligament reconstruction using the Ilizarov Technique to treat neglected monteggia fracture two case reports
Journal of Medical Case Reports, 2010Co-Authors: Altaf Ahmed Kawoosa, Shabir Ahmed Dhar, Mohammed Farooq Butt, Shareef A Wani, Mohammed Ramzan Mir, T A DarAbstract:A Monteggia facture dislocation is not an uncommon injury, and the diagnosis can often be missed. Long-term follow-up of untreated Monteggia fracture dislocations reveals development of premature arthritis, pain, instability, and loss of pronation and supination. Methods involving annular ligament reconstruction require post-operative immobilization and use of transcapitellar pinning for maintenance of reduction, and thus a delay in rehabilitation. The literature reports satisfactory results with methods that involve ulnar osteotomy and open reduction of the radial head without annular ligament reconstruction. We used the Ilizarov method in two cases with neglected Monteggia fracture dislocations to stably reduce the radial head without open reduction and annular ligament reconstruction. We report two cases of neglected Monteggia fracture dislocation, in two Kashmiri boys aged four and six years. Using ulnar osteotomy with distraction osteogenesis, we were able to relocate the radial head gradually and maintain the reduction without a requirement for open reduction and annular ligament reconstruction. Distraction lengthening and hyperangulation in different planes by use of the Ilizarov Technique effectively reduces the radial head without open reduction and annular ligament reconstruction.
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Stable relocation of the radial head without annular ligament reconstruction using the Ilizarov Technique to treat neglected Monteggia fracture: two case reports
Journal of Medical Case Reports, 2010Co-Authors: Altaf Ahmed Kawoosa, Shabir Ahmed Dhar, Mohammed Farooq Butt, Shareef A Wani, Mohammed Ramzan Mir, T A DarAbstract:Introduction A Monteggia facture dislocation is not an uncommon injury, and the diagnosis can often be missed. Long-term follow-up of untreated Monteggia fracture dislocations reveals development of premature arthritis, pain, instability, and loss of pronation and supination. Methods involving annular ligament reconstruction require post-operative immobilization and use of transcapitellar pinning for maintenance of reduction, and thus a delay in rehabilitation. The literature reports satisfactory results with methods that involve ulnar osteotomy and open reduction of the radial head without annular ligament reconstruction. We used the Ilizarov method in two cases with neglected Monteggia fracture dislocations to stably reduce the radial head without open reduction and annular ligament reconstruction. Case presentation We report two cases of neglected Monteggia fracture dislocation, in two Kashmiri boys aged four and six years. Using ulnar osteotomy with distraction osteogenesis, we were able to relocate the radial head gradually and maintain the reduction without a requirement for open reduction and annular ligament reconstruction. Conclusion Distraction lengthening and hyperangulation in different planes by use of the Ilizarov Technique effectively reduces the radial head without open reduction and annular ligament reconstruction.
Nabil A Elmoghazy - One of the best experts on this subject based on the ideXlab platform.
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limb lengthening and deformity correction by the Ilizarov Technique in type iii fibular hemimelia an alternative to amputation
Clinical Orthopaedics and Related Research, 2011Co-Authors: Maurizio A Catagni, Makram Radwan, Luigi Lovisetti, Francesco Guerreschi, Nabil A ElmoghazyAbstract:Background Fibular hemimelia is partial or total aplasia of the fibula; it represents the most frequent congenital defect of the long bones. It usually is associated with other anomalies of the tibia, femur, and foot.
