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1.
Arthroscopy ; 30(9): 1124-30, 2014 Sep.
Article in English | MEDLINE | ID: mdl-25193126

ABSTRACT

PURPOSE: To compare the outside-in transtibial lateral and medial approaches for posterior cruciate ligament (PCL) reconstruction regarding the guidewires and popliteal artery integrity. METHODS: Twenty-two human cadaveric knees were used. A PCL tibial aimer was arthroscopically placed within the PCL footprint through the anteromedial portal for the medial approach and through the anterolateral portal for the lateral approach. For the medial approach, the drill guide was introduced through the anteromedial tibial cortex and the guidewire was advanced with the reamer beyond the posterior tibial cortex. For the lateral approach, the drill guide was introduced through the anterolateral tibial cortex and the guidewire was advanced with the reamer beyond the posterior tibial cortex. After this, the knee was dissected. The depth distance (DD) was defined as the distance between the popliteal artery and the tibial posterior cortex projected at the tibial level at which the guidewire intersected or passed by the artery. The guidewire travel distance was calculated as the distance the guidewire had to advance beyond the tibial cortex to intersect the popliteal artery or pass by it. RESULTS: With the medial approach, the popliteal artery was intersected in all knees with a mean DD of 12.20 mm and a mean guidewire travel distance of 15.90 mm. With the lateral approach, the popliteal artery was not intersected in any knee; its mean medial distance from the artery was 4.8 mm at a DD of 10.05 mm. There was a significant difference in the popliteal artery intersection incidence and DD between both groups (P < .0001 and P = .0003, respectively). CONCLUSIONS: The transtibial lateral approach for PCL reconstruction was a safer method than the medial approach regarding popliteal artery injury by a guidewire. CLINICAL RELEVANCE: This study presents a slight modification of the most frequently used PCL reconstruction technique, intending to minimize guidewire injury to the popliteal artery.


Subject(s)
Arthroplasty/methods , Popliteal Artery/injuries , Posterior Cruciate Ligament/surgery , Wounds, Penetrating/prevention & control , Arthroplasty/instrumentation , Cadaver , Humans , Tibia/surgery
2.
Rev. bras. ortop ; 33(5): 363-7, maio 1998. ilus, tab
Article in Portuguese | LILACS | ID: lil-214555

ABSTRACT

Os autores, no período de 11/7/96 a 13/8/97, realizaram 61 reconstruçoes ligamentares, em 61 pacientes portadores de insuficiência do ligamento cruzado anterior (LCA). O enxerto autólogo utilizado foi o tendao do semitendíneo triplo, que é fixado à tíbia com arruela metálica e parafuso de cortical e, ao fêmur, com endobutton. Suas extremidades sao amarradas com fio de Ethibond n5. Foram reavaliados 35 pacientes, divididos em dois grupos: grupo 1, com 15 pacientes sem pré-tensionamento durante o ato cirúrgico; grupo 2, com 20 pacientes que foram submetidos a pré-tensionamento in situ. Os autores desenvolveram um método para avaliar o alongamento ocorrido no "conjunto de deformaçao" e fazem uma avaliaçao clínica comparativa entre os dois grupos. Concluem que, ao se escolher o conjunto semitendíneo triplo (ST3) + Ethibond + endobutton, para substituir o LCA, deverá ser realizado de rotina o pré-tensionamento in situ.


Subject(s)
Humans , Male , Female , Adolescent , Adult , Middle Aged , Anterior Cruciate Ligament/surgery , Orthopedic Procedures/methods
3.
Rev. bras. ortop ; 30(10): 721-6, out. 1995.
Article in Portuguese | LILACS | ID: lil-162628

ABSTRACT

Os autores fazem uma análise de 182 pacientes operados com a técnica que utiliza o duplo enxerto do trato iliotibial, no período de 2/9/86 a 11/2/92. Fazem revisao anatômica, biomecânica e biofísica do LCA, discutem os pontos de fixaçao do enxerto na tíbia e no fêmur e fazem avaliaçao dos seus resultados utilizando os critérios adotados pelo ISK. Concluem mostrando os bons resultados obtidos com esta opçao cirúrgica no tratamento da insuficiência do LCA.


Subject(s)
Humans , Male , Female , Adolescent , Adult , Middle Aged , Anterior Cruciate Ligament/surgery , Knee Joint/surgery , Ilium/transplantation , Knee Injuries/surgery , Surgical Procedures, Operative , Tibia/transplantation , Follow-Up Studies , Surveys and Questionnaires
4.
Rev. bras. ortop ; 24(3): 47-54, mar. 1989. ilus, tab
Article in Portuguese | LILACS | ID: lil-74581

ABSTRACT

Os autores apresentam dez casos, nos quais foi utilizada a técnica de implantaçäo cirúrgica de fascia lata na estabilizaçäo extra e extra-articular das instabilidades anteriores rotacionais do joelho. A etiopatogenia foi devidamente apreciada nos casos apresentados, dando-se ênfase aos resultados obtidos através de uma técnica que, segundo os autores, preserva a dinâmica da articulaçäo do joelho lesionado, utilizando enxerto duplo de fascia lata, procedimento que oferece a manutençäo da isometricidade anatômica do ligamanto cruzado anterior, além da fixaçäo intra e extra-articular estática da articulaçäo do joelho


Subject(s)
Adult , Humans , Male , Fascia Lata , Knee Injuries/surgery , Joint Instability , Knee Prosthesis , Ligaments, Articular
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