Treatment of Infected Pseudarthrosis of the Tibia Using the Ilizarov Method and the Orr Dressing / Tratamento das pseudoartroses infectadas da tÍbia pelo mÉtodo de Ilizarov associado ao curativo de Orr

Abstract Objective This study aims to analyze outcomes and clinical and epidemiological data of infected tibial pseudarthrosis using the Ilizarov method and the Orr dressing. Methods Data from n = 43 patients diagnosed with infected tibial pseudarthrosis were analyzed by descriptive and inferential statistical methods. In addition, Paley's assessment criteria evaluated bone and functional outcomes. Qualitative variables were presented as the distribution of absolute and relative frequencies. The presentation of quantitative variables followed the D'Agostino-Pearson test. Results Thirty-seven (86.04%) subjects were males, and six (13.95%) were females. The most frequent age group among patients was 50 to 59 years old (25.6%), with a p-value = 0.8610. The treatment time was longer for the trifocal treatment (23.8 months) when compared to the bifocal treatment (15.6 months), with a p-value = 0.0010* (highly significant). Excellent bone outcomes represented 72.09% of the sample; 23.25% of outcomes were good. Functional outcomes were excellent in 55.81%, good in 6.97%, and regular in 27.90% of subjects. The Orr dressing (using Vaseline gauze) proved effective, achieving wound healing with soft tissue coverage in all patients evaluated. Conclusions The Ilizarov method resulted in a substantial change in the treatment of bone infections, especially infected pseudarthrosis. The versatility of this method has turned it into an effective tool, allowing the healing of the infectious process and the correction of potential deformities and shortening.

Resumo Objetivo Analisar os resultados e os dados clínicos e epidemiológicos do tratamento das pseudoartroses infectadas da tíbia pelo método de Ilizarov associado ao curativo de Orr. Métodos Para analisar os dados de n = 43 pacientes com diagnóstico de pseudoartrose infectada da tíbia foram aplicados métodos estatísticos descritivos e inferenciais e os resultados ósseos e funcionais foram avaliados de acordo com os critérios de avaliação de Paley. As variáveis qualitativas foram apresentadas por distribuição de frequências absolutas e relativas. As variáveis quantitativas foram apresentadas pelo teste de DAgostino-Pearson. Resultados Foi encontrado que 37 (86,04%) eram do sexo masculino, 6 (13,95%) femininos. A faixa etária mais frequente entre os pacientes foi de 50 a 59 anos (25.6%), p-valor = 0.8610. O tempo de tratamento é maior no tratamento trifocal (23.8 meses) quando comparado com o Bifocal (15.6 meses), p-valor =0.0010* (altamente significante). Os resultados ósseos excelentes representaram 72,09%, 23,25% foram de resultados considerados bons. Os resultados funcionais considerados excelentes foram 55,81%, os resultados bons foram 6,97%, resultados regulares foram 27,90. O curativo com gaze vaselinada (curativo de Orr) mostrou-se eficaz, alcançando assim a cicatrização das feridas com cobertura de partes moles em todos os pacientes avaliados. Conclusões O método de Ilizarov proporcionou uma mudança substancial no tratamentos das infecções ósseas, especialmente das pseudoartroses infectadas. A versatilidade deste método se transformou em uma ferramenta eficaz, permitindo a cura do processo infeccioso, bem como correção das possíveis deformidades e do encurtamento.

Evaluation of the Quality of Life of Patients Using Circular External Fixator in a Trauma Hospital / Avaliação da qualidade de vida dos pacientes em uso de fixador externo circular em um hospital de trauma

Abstract Objective To evaluate the quality of life of patients using an Ilizarov type external fixator for the treatment of complicated fractures and their sequelae. Method This is an observational and cross-sectional study, in which the 36-item short form survey (SF-36) questionnaire (translated into Portuguese) was applied during outpatient consultations in 2 periods, in the months of July 2018 and January 2019. The patients who participated in the study underwent their surgical procedures between January and June 2018. Results We evaluated 36 patients using an external Ilizarov fixator. We observed a predominance of male patients, with a mean age of 37.9 years. Fractures of leg bones and their complications represented half of the sample. Improvement in functional capacity and emotional aspects of the patients was observed throughout the treatment. Conclusion The use of the circular external fixator is an important and effective method for the surgical treatment of complex fractures and their sequelae. This study allowed us to conclude that, after treatment, patients achieved functional return to daily activities with adequate quality of life.

Resumo Objetivo Avaliar a qualidade de vida dos pacientes em uso do fixador externo do tipo Ilizarov para tratamento de fraturas complexas e de suas sequelas Método Trata-se de um estudo observacional e transversal, em que foi aplicado o questionário 36-item short form survey (SF-36) (traduzido para a língua portuguesa) durante as consultas ambulatoriais em 2 períodos, nos meses de julho de 2018 e janeiro de 2019. Os pacientes que participaram do estudo realizaram seus procedimentos cirúrgicos no período de janeiro a junho de 2018. Resultados Foram avaliados 36 pacientes em uso de fixador externo do tipo Ilizarov. Foi observado predomínio do sexo masculino e idade média de 37,9 anos. As fraturas de ossos da perna e suas complicações representaram metade da amostra. Foi observada melhora na capacidade funcional e nos aspectos emocionais dos pacientes ao longo do tratamento. Conclusão O uso do fixador externo circular constitui um método importante e eficaz para o tratamento cirúrgico de fraturas complexas e de suas sequelas. Este trabalho permitiu concluir que, após o tratamento, os pacientes alcançaram retorno funcional às atividades diárias com adequada qualidade de vida.

Ilizarov technique combined with limited adjunctive surgical procedures for correction of relapsed talipes equinovarus in children.

Objective To evaluate the efficacy and safety of using the Ilizarov invasive distraction technique combined with limited surgical operations in the treatment of relapsed talipes equinovarus in children. Methods This retrospective study analysed the outcomes of paediatric patients with relapsed talipes equinovarus who were treated with the Ilizarov technique with moderate open limited soft tissue or bony operations. The International Clubfoot Study Group (ICFSG) classification system score was used to evaluate the deformities before and after surgery. Results The study evaluated 16 feet in 14 patients (nine boys). The correction time ranged from 6 to 12 weeks. The mean duration of frame application was 5.9 months. The gait was improved significantly in all patients. At final follow-up, the mean ankle dorsiflexion and plantarflexion ranges were 8.3° and 34.6°, respectively. The talocalcaneal angle improved from 10.0° preoperatively to 28.3° postoperatively in the anteroposterior plane; and from 4.1° preoperatively to 42.1° postoperatively in the lateral plane. The differences in the angle of plantarflexion, dorsiflexion, range of motion of the ankle joint and talocalcaneal angles pre- and postoperation were significant. Conclusions These current findings suggest that the Ilizarov technique combined with limited surgery effectively corrects relapsed talipes equinovarus in children.

The effects of an early intrahospital rehabilitation on weight bearing during lower extremity lengthening with Ilizarov method.

PURPOSE: Exerting axial pressure on the affected lower limb remains one of the most crucial elements of Ilizarov method. The objective was to determine the effects of an early intrahospital rehabilitation on weight bearing during lower extremity lengthening with Ilizarov method. METHODS: The study included 15 patients who underwent lower limb lengthening. The patients were tested on the third day after surgery using the pedobarographic platform. The tests were performed four times in the standing position: twice with the support of forearm crutches and twice without crutches. Patients were asked to either remain in the relaxed standing position (two tests) or use the lower limb equipped with Ilizarov apparatus to support the body weight (two tests). RESULTS: In relaxed stance average pressure with forearm crutches was 24.1% for affected limb, as compared to 75.9% for the healthy limb. In test without forearm crutches average pressure for affected limb was 26.1%, as compared to 73.9% for the healthy limb. Patients shifted body weight to the affected limb with forearm crutches on average, at the rate of 53.6%. In test without forearm crutches the affected limb was supporting the body weight at the rate of 48.26%. None of the patients was able to fully support the body weight on the affected leg. CONCLUSIONS: In spite of strict physiotherapy regimen, patients are neither able to equally distribute their body weight between the two lower limbs nor to shift their body weight to the limb equipped with Ilizarov apparatus.

Muscle strength and knee range of motion after femoral lengthening.

Background and purpose - Femoral lengthening may result in decrease in knee range of motion (ROM) and quadriceps and hamstring muscle weakness. We evaluated preoperative and postoperative knee ROM, hamstring muscle strength, and quadriceps muscle strength in a diverse group of patients undergoing femoral lengthening. We hypothesized that lengthening would not result in a significant change in knee ROM or muscle strength. Patients and methods - This prospective study of 48 patients (mean age 27 (9-60) years) compared ROM and muscle strength before and after femoral lengthening. Patient age, amount of lengthening, percent lengthening, level of osteotomy, fixation time, and method of lengthening were also evaluated regarding knee ROM and strength. The average length of follow-up was 2.9 (2.0-4.7) years. Results - Mean amount of lengthening was 5.2 (2.4-11.0) cm. The difference between preoperative and final knee flexion ROM was 2° for the overall group. Congenital shortening cases lost an average of 5% or 6° of terminal knee flexion, developmental cases lost an average of 3% or 4°, and posttraumatic cases regained all motion. The difference in quadriceps strength at 45° preoperatively and after lengthening was not statistically or clinically significant (2.7 Nm; p = 0.06). Age, amount of lengthening, percent lengthening, osteotomy level, fixation time, and lengthening method had no statistically significant influence on knee ROM or quadriceps strength at final follow-up. Interpretation - Most variables had no effect on ROM or strength, and higher age did not appear to be a limiting factor for femoral lengthening. Patients with congenital causes were most affected in terms of knee flexion.

TREATMENT OF CONGENITAL PSEUDARTHROSIS OF THE TIBIA.

The work is based on an analysis of treatment results of 47 patients with congenital pseudarthrosis of the tibia. The Ilizarov technique of unfree osteoplasty was applied on these patients. The authors considered an application of combined variants of exterior and external osteosynthesis as very perspective in rehabilitation of the patients with congenital pseudarthrosis.

[Ilizarov external fixator in the management of tibial pilon fractures: ankle hinged vs ankle fixed frame]. / Tibia pilon kiriklarinin tedavisinde Ilizarov eksternal fiksatörü: Ayak bilegi eklemli mi yoksa sabit mi?

OBJECTIVES: In this study, we aimed to answer the following questions: (i) Do patients with tibial pilon fractures treated with an ankle hinge Ilizarov external fixator have a better ankle function versus ankle fixed? (ii) Is the incidence of posttraumatic arthrosis lower in patients treated with an ankle hinge Ilizarov external fixator? PATIENTS AND METHODS: Between April 2002 and January 2008, data of 34 patients (26 males, 8 females; mean age 36.9 years; range 20 to 78 years) who were treated with Ilizarov external fixator due to tibial pilon fracture were retrospectively evaluated. The patients were divided into two groups including those with an ankle hinged Ilizarov external fixator (group A, n=16) and an ankle fixed Ilizarov external fixator (group B, n=18). Preoperative and postoperative complications in the patients and quality of reduction were evaluated. In the last follow-up visit, ankle plantar and dorsiflexion range of motion and length of tibia were goniometrically measured. The functional assessment of the patients was performed using Teeny and Wiss scale. Posttraumatic arthrosis in the standard ankle X-rays was investigated. RESULTS: The mean degree of plantar flexion was significantly higher in group A (25° in group A, 12.4° in group B). In the last visit, satisfactory results were obtained in 62.5% patients of group A and in 38.8% patients of group B according to Teeny and Wiss scale. Repeated X-rays revealed posttraumatic arthrosis in 31.3% patients of group A (n=5) and in 55.5% patients of group B (n=10). CONCLUSION: The selection of an ankle hinged Ilizarov external fixator and early joint movement is an effective treatment method for the management of tibial pilon fractures usually accompanied by soft tissue injuries.

The analysis of self-esteem based on patients` self-perception after Ilizarov limb lengthening treatment.

In the article there is shown the analysis of patients self-perception after the Ilizarov limb lenghening treatment due to inequality. 150 patients both sexes (78 girls and 72 boys) were tested between 1992 and 2003 in our center. The average age for girls at the time of follow-up was 19.5 years and 18.5 years for boys. In the survey there was used four point-scale SES by Irena Dzwokowska, Kinga Lachowicz-Tabaczek and Mariola Lagun which was based on Rosenberg work. The results were divided into two groups: low or high score. It was evaluated according to the table of standards which included people age and sex. Then the score was transformed into standard ten. For statistical calculations was used MicroSoft Excel spreadsheet. In the case of statistical studies was used Spss v.17.0. It was found that among survey respondents regardless of gender and age after the satisfactory completion of Ilizarov treatment patients gain a high level of self-assessment at 7 standard ten. The high self-esteem can predict the level of patients` comfort in many aspects of their lives. People with such a hight self-perception will experience more positive emotions and will be healthier and more active.

Recovery of muscle strength and power after limb-lengthening surgery.

OBJECTIVE: To report muscle strength, power, and function after limb-lengthening surgery performed by using the Ilizarov technique. DESIGN: Prospective, longitudinal observational study of a cohort of consecutive patients who underwent limb-lengthening distraction followed up for 2 years after surgery. SETTING: National Health Service hospital specializing in orthopedic surgery. PARTICIPANTS: Patients (N=16) who had undergone limb-lengthening surgery performed by using the Ilizarov method (11 men, 5 women; mean age=27 y; range, 13-56 y). INTERVENTIONS: None. MAIN OUTCOME MEASURES: Muscle strength and power were assessed by using 2 validated measures: isokinetic concentric strength of the quadriceps and hamstrings measured by using a dynamometer and leg extensor power. Measures were recorded preoperatively and at 6, 12, and 24 months after the completion of lengthening. Function was measured by 2 timed tests of functional performance: stair climbing and sit-to-stand. RESULTS: Overall results were good with high reports of function and satisfactory clinical examination. Both concentric muscle strength and leg power showed a clear pattern of decreased muscle strength at 6 months after frame removal, improving throughout the study period until it was within 3% of the preoperative value at 2 years. By 2 years, self-reported function and ability to complete timed functional tests had returned to or improved on the preoperative values. Muscle strength remained slightly below the preoperative value; this was more pronounced in the quadriceps than the hamstrings. There was no association between muscle strength and the amount of lengthening that had been undertaken. CONCLUSIONS: This study suggests that there is a small residual decrease in muscle strength and power after limb-lengthening surgery but that these do not adversely impact on a patients' ability to perform everyday functional activities.

Long-term psychosocial functioning after Ilizarov limb lengthening during childhood.

BACKGROUND AND PURPOSE: Few studies have been concerned with the patient's perception of the outcome of limb lengthening. We describe the psychological and social functioning after at least 2 years of follow-up in patients who had had a leg length discrepancy and who had undergone an Ilizarov limb lengthening procedure. PATIENTS AND METHODS: Self-esteem and perceived competence were measured in 37 patients (aged 17-30 years) both preoperatively and at a mean follow-up of 7 (2-14) years. At follow-up, health-related quality of life, functioning at school, daily activities, and treatment-related experiences were measured, and also retrospectively for the preoperative period. RESULTS: Preoperative and follow-up scores for self-esteem were similar. Overall perceived competence scores at follow-up were comparable to that of a healthy normal population. Patients' perceived athletic competence was lower and their perceived level of behavioral conduct was higher. At follow-up, patients had more positive appraisal of their physical appearance. Most health-related quality of life scores were not significantly different to those of the healthy normal population, apart from a reduced gross motor function, less vitality, and more pain. Patients with a remaining leg length inequality (LLI) of more than 2 cm had lower quality of life scores for gross motor function, sleep, pain, vitality, and depressive feelings. INTERPRETATION: At an average of 7 years after an Ilizarov limb lengthening procedure, patients still have physical restraints, but they appear to have normal psychosocial functioning, self-esteem, and perceived competence. These patients have quality of life scores comparable to those of norm groups, apart from a reduced gross motor function, less vitality and more pain. Residual LLI of more than 2 cm remains important even after long-term follow-up; these patients report lower quality of life.

Postoperative impact of daily life after primary treatment of proximal/distal tibiafracture with Ilizarov external fixation.

AIMS AND OBJECTIVES: To describe patients' experience of the impact of their health-related life situation on their daily life two and four weeks after primary fracture treatment with Ilizarov external fixation. BACKGROUND: A few studies have been conducted postoperatively focussing on fracture treatment with Ilizarov fixation. DESIGN: A prospective descriptive research design. METHOD: Patients who had been treated for a proximal/distal tibial fracture were invited to participate in the study. Data were collected with a semi-structured questionnaire where 20 patients described in their own words their situation at home two and four weeks postoperatively. The process used when analysing the data was similar to content analysis. RESULTS: Four key themes were identified: 'limitations in the home environment', 'limitations outside the home', 'limitations to social relations' and 'experience of having an Ilizarov fixation'. The patient's life situation was strongly affected during the first postoperative month. This took the form of clear limitations on activities outside the home and a degree of limitation on coping with household chores and personal hygiene. These limitations became less severe after between 2-4 weeks and were very much a consequence of using crutches. CONCLUSION: This study points to limitations in the patient's daily life situation in the home. The results from the study make it obvious that the information given to patients prior to discharge, concerning the value of putting weight on the leg, had not been clear or that the patients had not understood it. This had a negative impact on the patient's daily life after discharge. Further data are needed to uncover the extent of the issue to be able to optimise patient outcomes. RELEVANCE TO CLINICAL PRACTICE: There is a need for clearer and more active information from the nurse before discharge but also a need to follow up how the information given is understood.

Ankle fusion for bone loss around the ankle joint using the Ilizarov technique.

We present the results of ankle fusion using the Ilizarov technique for bone loss around the ankle in 20 patients. All except one had sustained post-traumatic bone loss. Infection was present in 17. The mean age was 33.1 years (7 to 71). The mean size of the defect was 3.98 cm (1.5 to 12) and associated limb shortening before the index procedure varied from 1 cm to 5 cm. The mean time in the external fixator was 335 days (42 to 870). Tibiotalar fusion was performed in 19 patients and tibiocalcaneal fusion in one. Associated problems included diabetes in one patient, pelvic and urethral injury in one, visual injury in one patient and ipsilateral tibial fracture in five. At the final mean follow-up of 51.55 months (24 to 121) fusion had been achieved in 19 of 20 patients. A total of 16 patients were able to return to work. The results were graded as good in 11 patients, fair in six and poor in three. The mean external fixation index was 8.8 days/mm (0 to 30). One patient with diabetes developed severe infection which required early removal of the fixator. Refractures occurred in three patients, two of which were at the site of fusion and one at a previous tibial shaft fracture site. Equinus deformity of the ankle fusion occurred after a further fracture in one patient. There were two patients with residual forefoot equinus, and one developed late valgus at the fusion site. Poor consolidation of the regenerated bone in two patients was treated by bone grafting in one and by bone and fibular strut grafting in the other. Residual soft-tissue infection was still present in two patients.

The principles of caring for patients with Ilizarov external fixation.

External fixation is an important aspect of complex fracture management. Ilizarov fixation is a specialised type of external fixator consisting of numerous wires that penetrate the limb and are attached to a circular metal frame. Ilizarov fixation is used for fracture fixation and stabilisation, limb reconstruction, deformity correction and limb lengthening. The external fixator can be in place for many months and patients will need to adapt to the device and demonstrate an understanding of the principles of pin site care. Psychosocial issues also need to be considered.

Tumor de células gigantes da extremidade distal do fêmur: um desafio de tratamento / Giant cell tumor of femoral distal end: a challenge in treatment

Apresentamos aqui um caso de tumor de células gigantes na extremidade distal do fêmur direito tratado com ressecção da massa tumoral em bloco com remoção aguda da extremidade proximal e distal e fixado com hastes longas em K atravessando o joelho, do fêmur à tíbia. Após a consolidação / união completa das extremidades, foi feita a remoção da haste em K, seguida pela corticotomia juntamente com a osteogênese da distração com o auxílio do anel fixador de Ilizarov. O comprimento foi alcançado com este processo. O resultado final foi muito bom neste caso. Revisamos as opções de tratamento para tumor maligno de células gigantes na extremidade distal do fêmur e as dificuldades de tratá-lo.

We present a case of malignant giant cell tumor of distal end of right femur treated with resection of the tumor mass en block with acute docking of proximal and distal end and fixed with long K-nail across knee from femur to tibia. After complete consolidation/ union of the ends, removal of K nail was done followed by corticotomy along with distraction osteogenesis with the help of Ilizarov ring fixator. The length was achieved with this process. The end result was very good in this case. We reviewed the treatment options for malignant giant cell tumor of femoral distal end and the challenges in its treatment.

Prevention and management of complications of the Ilizarov treatment method.

Serious orthopaedic conditions such as nonunions and pilon, calcaneal, and Lisfranc fractures, as well as leg lengthening, correction of angular deformities, resection of osteomyelitis, and bone transfer, can be treated successfully with the Ilizarov system. However, complications such as contractures, loss of range of motion, neurologic deficits, articular damage, contractures, and pin track infections can occur. This article describes the costs of limb salvage with the Ilizarov system compared with amputation as well as possible complications and their prevention; it also provides a treatment protocol.

[Complications of distraction-compression osteogenesis and their prophylaxis--a clinical report]. / Niektóre aspekty powiklan osteogenezy dystrakcyjno-kompresyjnej oraz ich profilaktyka w swietle wlasnych doswiadczen klinicznych.

The authors present a historical overview of various classifications of distraction osteogenesis complications. Paley's classification as well as the authors' own classification also presented. Basing on the authors' own 10 year experiences with the Ilizarov method, selected complications at different stages of diagnostics, treatment and rehabilitation are presented. The most effective forms of prophylaxis are presented, with special attention given to the surgeon's own experience with the Ilizarov method.

The Ilizarov method in infected nonunion of fractures.

Thirty patients with infected non-union of long bones were treated with radical resection of the necrotic bone and bone transport or compression/distraction osteosynthesis. Non-union, infection, deformity, bone gap and shortening were all addressed simultaneously using the Ilizarov principles. There were 15 cases with bone loss ranging from 4 to 12 cm (median bone gap of 7 cm), 10 cases of stiff non-union (six of which had an associated deformity) and five cases of mobile non-union. The median time in the Ilizarov frame was 150 days. Median follow up time after frame removal was 23.5 months. Bone grafting at the docking site was only required in three cases (10%). There were three cases of refracture (10%) and three cases of recurrence of infection (10%). The bone result was excellent in 21 patients (70%), good in three (10%), fair in none (0%) and poor in six (20%). The functional results were excellent in eight patients (26.7%), good in 12 (40.0%), fair in three (10%) and poor in seven (23.3%). It is difficult to precisely define the indications for preservation and reconstruction of severe injuries. The surgical team has to take into account the length, disability, complications and cost of treatment. Patients must be aware of the limitations of functional results and the possible difficulty of return to work despite the reconstructive attempt.

Artrodese subtalar do pé pelo método de Ilizarov / Atrodese subtalar of the foot for the Ilizarov method

Foram trataos 28 pacientes num total de 29 pés, com idade média de 2,8, predominio no sexo masculino 16 pacientes 57,2 (por cento). Quanto à etinologia houve um predomínio das seqüelas de fraturas de calcâneo 11 pacientes 37,9 (por cento) e poliomielite 11 pacientes 37,9 (por cento), as outras causas foram nacrose do talus 2 pacientes 6,9 (por cento), barra óssea 2 pacientes 6,9 (por cento) e paralisia cerebral 1 paciente 3,5 (por cento). O tempo médio de consolidaçäo foi de 3,5 meses. Foram utilizados enxerto ósseo em 11 pacientes 44 (por cento). Houve necessidade em dois casos 6,9 (por cento) de se promover o alongamento do calcâneo para se aumentar o pitch do mesmo. A montagem é simples e se baseia em 2 anéis com fixaçäo transóssea através de 2 fios olivados no tallus e 2 no calcâneo. Como resultado foi obtido 100 (por cento) de consolidaçäo, ausência de dor e osteoporose e boa sensibilidade do pé. Das complicaçöes encontradas além das costumeniras ou próprias do método 1 paciente 3,5 (por cento) apresentou infecäo profunda em 1 dos fios. O método mostrou-se eficiente independente da etinologia com 100 (por cento) de consolidaçäo além de permitirem uma certa independência ao paciente durante o tratamento.

Resultados de alargamiento tibial con la técnica de ilizarov

Entre enero de 1992 y junio de 1997, 21 tibias en 21 pacientes se alargaron usando la técnica de ilizarov. El seguimiento fue de 5 meses a 5 años. La etiología del acortamiento en el miembro fue adquirido en 12 tibias y congénitas en 9. 20 tibias tuvieron tratamiento unifocal y una bifocal. El promedio de alargamiento fue de 6.0 cm, con un rango de 4 a 12 cm, el cual fue equivalente al 22.6 por ciento del promedio total de aumento en la longitud del segmento afectado, rango de 8.8 por ciento a 41 por ciento. El tiempo de corticalización del alargamiento fue en promedio 7 meses, con un rango de 4 a 12 meses. Las complicaciones a nivel óseo requirieron 7 cirugías adicionales, incluyendo 4 recolocaciones de clavos, 2 correcciones de deformidad angular en antecurvatum medinate recolocación del fijador y una por articotomía incompleta. 5 pacientes presentaron contractura en flexión de rodilla, 3 se movilizaron bajo anestesia y a 2 se les realizó deflexión de rodilla. Los resultados de este trabajo confirman que no hay alargamiento sin riesgo, pero existen ventajas evidentes con el método ilizarov, apoyo precoz, corrección simultánea de deformidades angulares coexistentes, lo que es difícil con otras técnicas quirúrgicas. La tasa de alargamiento y el índice de alargamiento obtenido en esta serie confirman el uso continuo de una distracción gradual previa selección del paciente.