Biomedical subjects

Emmanuel Antonogiannakis

Publications and source records attributed to Emmanuel Antonogiannakis.

8 recordsLinked to original sources

PubMed2005

Inter-rater reliability of Rolimeter measurements between anterior cruciate ligament injured and normal contra lateral knees.

The Rolimeter device can provide measurements of anterior/posterior tibial displacement using maximal manual force. The Rolimeter reliability is still under research when used as an independent knee tester. The purpose of this study is to determine the inter-rater reliability of the Rolimeter measurements between anterior cruciate ligament (ACL) injured and normal contra lateral knees. Twelve male patients with ACL deficiency participated in this study. Three physical therapists (PT) performed the Rolimeter measurements in supine position with an approximate 25 degrees flexion of the knees. Each therapist performed three trials on each knee and the difference in results in millimeters between injured knee and normal contra lateral knee was determined. Spearman's rho correlations showed weak relationships between the PT 1, 3 and 2, 3 (PT 1 vs. PT 3 r=0.55, PT 2 vs. PT 3 r=0.57) and the high relation between 1, 2 (PT 1 vs. PT 2 r=0.96) of Rolimeter measurements. Intraclass correlation coefficient showed no significant reliability coefficients among the three PT Rolimeter measurements between ACL injured and normal contra lateral knees (R=0.24, p=0.05). These results reflect the variations among the means of the three physical therapists' Rolimeter measurements between ACL injured and normal contra lateral knees.

Adult↗

PubMed2005

Intraoperative arthroscopic suture anchor reloading.

The success of an arthroscopic procedure depends considerably on the successful and secure tying of arthroscopic knots, which reapproximate and stabilize avulsed or torn soft tissues to their original bed. Failure to perform appropriate knot tying may jeopardize the success of the operation. We describe a simple and reliable technique for intraoperative arthroscopic replacement of the suture through the eyelet of an already-inserted bone anchor. This technique allows for replacement of a fretted suture or a loose knot with a new suture, offering the opportunity to repeat the knot tying procedure with a new intact suture.

Arthroscopy↗

PubMed2005

Arthroscopic anterior cruciate ligament reconstruction using quadriceps tendon autograft and bioabsorbable cross-pin fixation.

We describe a technique for arthroscopic anterior cruciate ligament (ACL) reconstruction using the middle third of the quadriceps tendon without a patellar bone block and absorbable tibial and femoral cross-pin fixation. The central part of the quadriceps tendon is harvested through a 5-cm long anterior skin incision without a patellar bone block. Tibial and femoral tunnels are prepared, the graft is passed up the tunnels, and is fixed both in the femur and the tibia using absorbable cross pins (Rigid Fix; Mitek, Johnson & Johnson, Norwood, MA). In this way, the graft is stabilized near the joint line, providing outlet fixation. In our practice, very good results have been obtained with the use of this technique.

Absorbable Implants↗

PubMed2005

The triad knot: a new sliding self-locking knot.

Tying secure knots is essential in arthroscopic surgery. A new slip knot for arthroscopic shoulder surgery is described. Locking of the knot is accomplished by pulling the post strand. Knot tying is simple and a low-profile, secure knot is produced.

Arthroscopy↗

PubMed2005

Distal intramedullary nail interlocking: the flag and grid technique.

Distal interlocking in intramedullary nailing of long bone fractures accounts for a significant proportion of the total fluoroscopy and operative time. We describe a modification of the "perfect circles" freehand technique employing a metallic grid temporarily attached to the skin of the lateral surface of the femur or to the medial surface of the tibia that acts as a fixed "navigational" aid. The position of the distal nail holes in relation to the grid is fluoroscopically ascertained. Subsequently, under fluoroscopic control, a modified Steinmann pin with a metallic handle attached to its blunt end ("flag") is used to accomplish targeting and to create the screw holes, affording improved visualization. This technique was compared with the traditional freehand technique in 2 groups of patients. Use of the modified technique led to reduction of radiation exposure and total distal interlocking time, and there were no significant complications related to the technique.

Adolescent↗

PubMed2004

A simplified arthroscopic outside-in meniscus repair technique.

A simple and reproducible technique for meniscus tear repair is described. The technique requires the use of a 16-gauge intravenous catheter, a suture hook, and a knot pusher. The catheter is used for perforation of the meniscus and the tear site in two adjacent locations, then the two free suture ends are retrieved and passed along a small arthroscopic cannula placed at the ipsilateral joint space, and finally a sliding arthroscopic knot is tied and advanced to the meniscus surface with a knot pusher. This simple technique provides secure fixation of the meniscus tear during the healing period and has been proven successful and without complications in the patients in whom it has been used.

Adult↗

PubMed2004

Prevention of posttraumatic hypoxaemia in isolated lower limb long bone fractures with a minimal prophylactic dose of corticosteroids.

The efficacy of a minimum dose of methylprednisolone for the prevention of posttraumatic hypoxaemia and fat embolism syndrome (FES) was prospectively studied in 87 patients with isolated, closed or grade I open, femoral and tibial fractures. On admission, the patients were randomly allocated either to a control group given placebo (40 patients) or to a methylprednisolone-treated group (47 patients). A total dose of 6 mg/kg BW methylprednisolone (SoluMedrol, Upjohn) was administered intravenously, divided in six equal doses at 8 h intervals. Six patients (12.8%) in the control group and one patient (2.5%) in the trial group developed FES (P = 0.079) but the difference is not statistically significant. Twenty-four hours after admission, the steroid-treated patients displayed statistically significant higher p(O2) values compared to the control group (P = 0.035) and this difference persisted on the second and the third post-admission day as well (P = 0.008). No corticosteroid-related side-effects were noticed in any of the patients during hospitalisation. Our results support the prophylactic administration of methylprednisolone in small dosage to prevent posttraumatic hypoxaemia and probably FES in patients with isolated lower limb long bone fractures, especially when early fracture stabilisation is not possible.

Adolescent↗

PubMed2002

Late disengagement of a knotless anchor.

The knotless anchor is a new type of suture anchor that eliminates the need to perform arthroscopic knots, thus facilitating the performance of arthroscopic shoulder surgery. We report our experience in the use of this type of anchor in arthroscopic Bankart repair and discuss a complication related to using this type of fixation device.

Adult↗