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O objetivo deste trabalho foi estudar em cadáveres de cães a exeqüibilidade do exame das estruturas intra-articulares através de duas diferentes abordagens artroscópicas da articulação escápulo-umeral. As articulações constituíram dois grupos: (A) o portal artroscópico foi estabelecido cranial e o portal instrumental caudal ao processo acromial; (B) o portal artroscópico foi confeccionado caudal e o portal instrumental cranial ao processo acromial. Durante o exame, procurou-se avaliar a possibilidade de visibilização concomitante com o toque através de sonda nas estruturas intra-articulares: cartilagem da cabeça do úmero (cranial, media e caudal), cavidade glenóide, tendão do músculo bíceps braquial, tendão do músculo subescapular, ligamento glenoumeral medial e lateral e bolsa articular caudal. As estruturas localizadas na porção cranial e média da articulação foram mais bem examinadas pela abordagem artroscópica realizada no grupo B, enquanto que aquelas estruturas situadas na porção média e caudal da articulação foram mais bem acessadas pela técnica utilizada no grupo A. Em nenhuma das abordagens, o ligamento glenoumeral lateral foi satisfatoriamente examinado. This research was aimed at studing in dog corpses the feasibility of the exam of the intrarticular structures by using two different arthroscopic shoulder approaches. The joints were assembled in two groups: (A) the arthroscopic portal was established cranially and the instrumental portal caudally to the acromial process; (B) the arthroscopic portal was established caudally and the instrumental portal cranially to the acromial process. At the time of the exam the possibility of arthroscopic visualization concurrently with the touch with the probe of the intra articular structures was evaluated: humeral head cartilage (cranial, midlle and caudal), glenoid cavity, brachial biceps muscle tendon, subscapularis muscle tendon, medial and lateral glenohumeral ligament and caudal joint pouch. The intra articular structures situated in the cranial and middle side of the joint were better examined by approaching used in B group. On the other hand the structures localized in the caudal and middle portions of the joint were better inspected by approaching used in A group. However the lateral glenohumeral ligament was not completely checked neither using the A group approach nor using the B group approach

Duas abordagens artroscópicas para a articulação escapulo umeral no cão