PURPOSE Proper femoral tunnel position is important for anatomical reconstruction of the anterior cruciate ligament (ACL). The purpose of this study was to evaluate the positions of femoral and tibial tunnels created using an accessory anteromedial portal technique in single bundle ACL reconstruction. MATERIALS AND METHODS The femoral tunnel was targeted at the mid-portion of the ACL bundles....

OBJECTIVE To compare the accuracy of positioning of the femoral tunnel in reconstructing the anterior cruciate ligament by means of 2 techniques: tibial tunnel and anteromedial portal. METHOD Femoral tunnels were drilled in 20 knees from human cadavers by means of arthroscopy. Group I had the femoral tunnel drilled via a trans-tibial tunnel, and Group II via the anteromedial portal. Four vari...

Reconstruction techniques for the anterior cruciate ligament (ACL) have evolved considerably over the past 3 decades. The femoral tunnel is most commonly made via a transtibial or separate anteromedial portal approach. Benefits and drawbacks for each of these techniques exist. Improper tunnel placement is the cause of failure for ACL reconstruction 70% of the time. We present a hybrid technique...

Tailed bacteriophages and herpesviruses load their capsids with DNA through a tunnel formed by the portal protein assembly. Here we describe the X-ray structure of the bacteriophage SPP1 portal protein in its isolated 13-subunit form and the pseudoatomic structure of a 12-subunit assembly. The first defines the DNA-interacting segments (tunnel loops) that pack tightly against each other forming...

Currently, the most common method for drilling the femoral tunnel in anterior cruciate ligament reconstruction (ACLR) employs a trans-tibial technique. A new technique, utilising anteromedial portal drilling has been shown to produce a more anatomical placement of the femoral tunnel than trans-tibial (1). A further recent development is the concept of anatomical anterior cruciate ligament recon...

multiple myeloma is a neoplastic plasma cell dyscrasia. patients usually present with bone pain, anemia, hypercalcemia and renal failure. unusual presentations include progressive bilateral carpal tunnel syndrome, polyarthritis, amyloidosis of the tongue, and involvement of pulmonary parenchyma. early diagnosis is important for timely therapy. we present the case of a patient with clinical feat...

BACKGROUND Recent efforts to improve the results of anterior cruciate ligament (ACL) reconstruction have focused on placing the femoral tunnel anatomically. Medial portal femoral tunnel techniques facilitate drilling of femoral tunnels that are more anatomic than those made with transtibial techniques. Few studies have compared the clinical outcomes of these two femoral tunnel techniques. We hy...

Endoscopic carpal tunnel release has been popularized since 1989 when Okutsu described it for the first time. Several surgeons have followed his principles and described their own techniques. These were developed in an attempt to decrease the well-known complications related to the open technique. Single and 2-portal techniques have been described. Indications include patients with moderate Car...

BACKGROUND This article describes an arthroscopic anterior cruciate ligament (ACL) reconstruction technique with a quadriceps tendon autograft using an anteromedial portal technique. METHODS A 5 cm quadriceps tendon graft is harvested with an adjacent 2 cm bone block. The femoral tunnel is created through a low anteromedial portal in its anatomical position. The tibial tunnel is created with ...

A dual-permeability flow model of the T-tunnel nuclear testing complex and surrounding area was developed to facilitate predictions of radionuclide migration from the tunnel tests through a thick sequence of variably-saturated, faulted, low-permeability volcanic tuff units to an underlying regional flow system. The hydrogeologic complexity necessitated a multi-stage calibration effort to captur...