Unestable knee osteochondritis dissecans: arthroscopic fixation with bio-absorbable device. / Osteocondritis disecante inestable de rodilla: fijación artroscópica con implante bioabsorbible.

INTRODUCTION: Knee ostheochondritis dissecans is an osteochondral disease, whose treatment is still debated. The purpose this study was to analyze the patients attached with bioabsorbable nail, assisted by arthroscopy. MATERIAL AND METHOD: Analysis was performed using median and interquartile range (P25-P75), with a follow-up of 9 patients (10 knees) operated for stage III osteochondral lesions. After a minimum of 12 months, the KOOS, IKDC, satisfaction questionnaires were evaluated and a MR control was perfomed. RESULTS: Bone healing was observed in 80% of patients in the first year, with a delay in union in 20%. The median for age was 15 years. The average follow-up was 5.93 years. All cases were located in the internal condyle. The OCD lesions did not show comminution or necrosis. The 40% of stable lesions, according to preoperative MR, were unestable in arthroscopy and it were attached with internal nail. Two groups of osteochondral lesions were differentiated: juvenile OCD (60%) and adult OCD (40%); all of them were stage III lesions. IKDC questionnaire results were an improvement of 29.5 (22.25, 37.52). In the KOOS questionnaire, an improvement was obtained in symptoms of 18.07, in pain of 29.12, in daily living 25.53, in function (sports, recreational activities) of 35 and in quality of life of 34.42. CONCLUSIONS: The bioabsorbable nail is a valid, reproducible option for unestable lesions with lesion integrity, with great improvement in function, quality of life and with few complications.

Prevalence of hypovitaminosis D in patients with juvenile osteochondritis dissecans. / Prevalencia de hipovitaminosis D en pacientes con osteocondritis disecante juvenil.

BACKGROUND: Juvenile osteochondritis dissecans (JOCD) is an acquired joint disease of unknown etiology that affects skeletally immature patients and has the potential to progress to osteoarthritis. Recent studies have reported a high prevalence of vitaminD deficiency in patients with osteochondral lesions. The aim of our study was to determine serum vitaminD levels in patients diagnosed with JOCD. METHODS: Serum 25(OH)D levels of 31 patients (22 males) presenting 40 lesions (29 JOCD of the knee, and 11 of the ankle) were evaluated. The average age was 11.9±2.9years. HypovitaminosisD was defined as a value less than 30ng/mL and was divided into vitaminD insufficiency (20 to 30ng/mL) and vitaminD deficiency (<20ng/mL). RESULTS: HypovitaminosisD was present in 45.2% of the evaluated patients (32.2% insufficiency and 13% deficiency). No significant differences were found in the mean values and incidence of hypovitaminosis between those patients in which the sample was taken in warm or cold season (P=.267 and P=.875, respectively). Patients who required surgery had a higher incidence of hypovitaminosis than those treated conservatively (60% versus 31%, P=.054). There was no correlation in the incidence of hypovitaminosis with sex, location, stability of the lesion, or if the lesion was uni- or bilateral. CONCLUSION: In our series, almost half of the patients diagnosed with JOCD presented abnormal serum levels of vitaminD. A two-fold incidence of hypovitaminosis was observed in patients requiring surgical treatment compared to patients managed conservatively. The association found in this study does not imply causation, but it should be considered within the set of actions for the treatment of these injuries.

Mosaicoplastia / Mosaicplasty

movimiento articular. El tratamiento de esta afección es variado, de estas modalidades la mosaicoplastia es muy empleada por sus diferentes ventajas. Objetivo: actualizar los conocimientos sobre el injerto osteocondral autólogo en la modalidad de mosaicoplastia. Métodos: la búsqueda de la información se realizó en el mes de octubre de 2016, a partir de la información obtenida se realizó una revisión bibliográfica de un total de 654 artículos publicados en las bases de datos PubMed, Hinari, SciELO y Medline mediante el gestor de búsqueda y administrador de referencias EndNote, de ellos se utilizaron 52 citas seleccionadas para realizar la revisión, 47 de ellas de los últimos cinco años, donde se incluyeron cuatro libros. Desarrollo: se describen los elementos necesarios para el diagnóstico clínico e imaginológico, en relación a estos últimos se hace énfasis en la imagen de resonancia magnética y la artroscopia. Se hace referencia a la clasificación de la sociedad internacional para la reparación de los cartílagos. Se describen las indicaciones quirúrgicas generales de las lesiones de cartílago y las específicas de la mosaicoplastia con sus principales ventajas y desventajas. Se plasman las principales complicaciones relacionadas con el procedimiento y los resultados de un grupo de investigaciones. Conclusiones: la mosaicoplastia es una variedad de injerto autólogo osteocondral empleada con buenos resultados en la actualidad, tiene ventajas, desventajas e indicaciones específicas.

Background: cartilage lesions are common nowadays. Their main symptoms and signs are pain and limited joint range of motion. There are many ways to treat them. Mosaicplasty is very used because of its several advantages. Objective: to update knowledge of autogenous osteochondral transplantation in mosaicplasty modality. Methods: a search in the databases PubMed, Hinari, SciELO and Medline was conducted through the information locator EndNote in October 2016. From the information obtained, a bibliographic review was carried out with 654 articles. Among them, 52 citations were used and 47 of them from the last five years, including four books. Development: fundamental elements for clinical and imaging diagnosis were described. With regard to the latter, it is emphasized on magnetic resonance imaging and arthroscopy. The international cartilage repair society classification system was pointed out. General surgical indications for cartilage lesions were described as well as specific ones for mosaicplasty and its main advantages and disadvantages. Complications were highlighted as well as the results of a group of researchers. Conclusions: mosaicplasty is a modality of autogenous osteochondral transplantation with good results because of its many advantages and disadvantages and specific indications to do it.

Knee hemarthros secondary to osteochondritis dissecans (König disease).

A case is presented of a hemarthrosis associated with osteochondritis dissecans in a young man who arrived in the Emergency unit due to tender and swelling of his right knee one hour after a slightly rotational gesture of the lower limb. Many years before the patient suffered a sports injury in the same knee, but it was never assessed. Radiography studies showed bone fragments inside the synovial capsule, and the joint aspiration was compatible with hemarthrosis. A review of the available information of this uncommon condition is also presented.

Osteonecrosis de la rodilla: enfoque actual / Knee osteonecrosis: current approach

La Osteonecrosis de la Rodilla se describió por primera vez por Ahlback citado por Adriaensen en el año 1968. Aunque esta enfermedad afecta fundamentalmente al condilo medial, también puede observarse en el cóndilo lateral y los paltillos tibiales. Desarrollo: se realizó una revisión bibliográfica sobre la Osteonecrosis de la Rodilla, con especial énfasis en las teorías involucradas en su fisiopatología, exponemos los distintos estadios de esta enfermedad así como las características radiológicas de cada uno, se realizó el diagnóstico diferencial de esta enfermedad con otras, relacionadas o no con la Osteonecrosis. Conclusiones: se brindó un breve enfoque terapéutico basado fundamentalmente en la edad y extensión de la lesión (AU)

Knee osteonecrosis was described for the first time by Ahlback mentioned by Adriaensen in 1968. Although this disease affects fundamentally to the medial condyle, it may also be observed in the lateral condyle and tibial saucers. Development: a bibliographical review was carried out on knee osteonecrosis, with special emphasis in the theories involved in its physiopathology, different stages of this disease as well as the radiological characteristics of each are exposed, differential diagnosis of this disease with other, related or not with osteonecrosis was carried out. Conclusions: it was offered a brief therapeutic approach based fundamentally on the age and extension of the lesion (AU)

Osteonecrosis de la rodilla: enfoque actual / Knee osteonecrosis: current approach

Fundamento: la Osteonecrosis de la Rodilla se describió por primera vez por Ahlback citado por Adriaensen en el año 1968. Aunque esta enfermedad afecta fundamentalmente al condilo medial, también puede observarse en el cóndilo lateral y los paltillos tibiales. Desarrollo: se realizó una revisión bibliográfica sobre la Osteonecrosis de la Rodilla, con especial énfasis en las teorías involucradas en su fisiopatología, exponemos los distintos estadios de esta enfermedad así como las características radiológicas de cada uno, se realizó el diagnóstico diferencial de esta enfermedad con otras, relacionadas o no con la Osteonecrosis. Conclusiones: se brindó un breve enfoque terapéutico basado fundamentalmente en la edad y extensión de la lesión.

Background: knee osteonecrosis was described for the first time by Ahlback mentioned by Adriaensen in 1968. Although this disease affects fundamentally to the medial condyle, it may also be observed in the lateral condyle and tibial saucers. Development: a bibliographical review was carried out on knee osteonecrosis, with special emphasis in the theories involved in its physiopathology, different stages of this disease as well as the radiological characteristics of each are exposed, differential diagnosis of this disease with other, related or not with osteonecrosis was carried out. Conclusions: it was offered a brief therapeutic approach based fundamentally on the age and extension of the lesion.

Osteocondrite dissecante do côndilo femoral lateral em cão shar-pei: relato de caso / Osteochondritis dissecans in the femoral lateral condylus in the shar-pei dog: case report / Osteocondritis disecante del cóndilo femoral lateral en perro shar-pei: relato de caso

Descreve-se o tratamento cirúrgico de osteocondrite dissecante do côndilo femoral lateral, em um cão macho adulto da raça Shar-Pei, com acesso para-patelar lateral ao joelho. O diagnóstico foi realizado por meio de exame ortopédico e radiográfico. Como tratamento, realizou-se artrotomia e condiloplastia femoral lateral, removendo retalho cartilaginoso e expondo o osso subcondral. Foram perfurados orifícios, com a finalidade de acelerar o processo cicatricial. No período pós-operatório houve restrição de exercícios durante 10 dias, com o retorno gradual às atividades físicas. Indicou-se o uso de tramadol e cetoprofeno durante sete dias, e sulfato de condroitina por 100 dias. Quarenta dias após a cirurgia, o paciente apresentou ausência de dor e claudicação, retornando à ambulação normal.

This paper reports the surgical treatment of osteochondritis dissecans in the femoral lateral condylus in a male adult Shar-Pei dog, with lateral parapatellar access to the knee. Diagnosis was made by physical and radiographic examination. The treatment was arthrotomy and lateral femoral condylar plastia, removing a cartilaginous flap and exposing the subchondral bone, in which there were performed punctures in order to accelerate the healing process. Exercises were restricted during the first 10 days of the post-op period, and then a gradual return to physical activities was recommended. Tramadol and ketoprofen were prescribed for seven days, and chondroitin sulphate for 100 days. Forty days after the surgery the patient showed absence of pain or lameness, returning to normal ambulation.

Se relata el tratamiento quirúrgico de osteocondritis disecante del cóndilo femoral lateral, en un perro Shar-Pei macho adulto, con acceso pararotuliano lateral a la rodilla. El diagnóstico fue realizado por medio de examen ortopédico y radiográfico. Como tratamiento, se realizó artrotomía y condiloplastía femoral lateral, removiéndose colgajo cartilaginoso y exponiendo el hueso subcondral. Se realizaron perforaciones, con objetivo de acelerar el proceso de cicatrización. En el periodo post-operatorio se indicó restricción a los ejercicios por 10 días, y después un retorno gradual a las actividades físicas. Se prescribió tramadol y ketoprofeno durante siete días, y sulfato de condroitina por 100 días. Cuarenta días después de la intervención el paciente no más demostraba dolor y claudicación, retornando a la ambulación normal.

Manejo quirúrgico en osteocondritis disecante de rodilla / Surgical management of knee osteochondritis dissecans

Introduction: Many techniques exist for the surgical treatment of knee Osteochondritis Dissecans (OCD). Objectives: Describe anatomic features and functional results of surgical treatment with different techniques in knee OCD. Methods: Consecutive series, fifteen patients treated surgically for knee OCD, between January 2001 - May 2008. We analyzed stability in MRI and arthroscopy, average surface area of the lesions, surgical techniques and postoperative complications. We followed our series at 29,8 months average with Lysholm and subjective IKDC scores. Results: Average age 18,6 years, 84,6 percent were male; 73,3 percent unstable on MRI; 66,6 percent of lesions located at the medial femoral condyle. Eleven cases treated with osteochondral autografts, 2 with osteochondral synthesis and 2 with microfractures and mechanic chondroplasty. No postoperative complications documented at follow up. Average postop Lysholm 93,3 points, average IKDC 88 points. Conclusion: Surgical treatment of unstable OCD offers good and excellent functional results at mid and long-term follow up.

Existen diversas técnicas para el tratamiento quirúrgico de la Osteocondritis Disecante (OCD) de la rodilla. Objetivos: Describir características anatómicas de la lesión y los resultados funcionales del tratamiento quirúrgico con diferentes técnicas en OCD de rodilla. Método: Serie consecutiva, 15 pacientes (Enero 2001-Mayo 2008). Se analiza estabilidad en Resonancia Magnética (RM), localización y estabilidad de lesión en artroscopia, área de superficie promedio de la lesión, técnica quirúrgica y complicaciones postoperatorias. Seguimiento promedio 29,8 meses con puntajes Lysholm e IKDC subjetivo. Edad promedio 18,6 años, 84,6 por ciento hombres. Resultados: 73,3 por ciento inestables en RM y 100 por ciento inestables en artroscopia; 66,6 por ciento en cóndilo femoral medial; 6 tipo C1, 4 tipo C2, 3 tipo C5 y 2 lesiones en patela. Once casos resueltos con autoinjertos osteocondrales, 2 con osteosíntesis y 2 con microfracturas. Área promedio de lesión 13,1 mm². No documentamos complicaciones. Promedios post operatorios: Lysholm 93,3; IKDC 88 puntos. Conclusión: La resolución quirúrgica de OCD inestables ofrece buenos y excelentes resultados funcionales en seguimiento a mediano y largo plazo en la mayoría de los pacientes.