In vivo knee rotational stability 2 years after the ACL reconstruction using a quadriceps tendon graft with bone block and bone-patellar tendon-bone graft.

Introduction: The aim of this prospective randomised study was to evaluate clinical results and rotational stability at least 2 years after single-bundle anatomic anterior cruciate ligament reconstruction using a quadriceps tendon graft with bone block (BT) and bone-patellar tendon-bone graft (BTB).

Materials And Methods: In both groups (BT and BTB), 40 patients selected prospectively at random were evaluated. The mean follow-up after the surgery was 28 months (range 24-33 months).

[Rotational Stability of the Knee Joint 2 Years after the Anterolateral Ligament and ACL Reconstruction: Biomechanical Study].

PURPOSE OF THE STUDY Knee injuries accompanied by anterior cruciate ligament (ACL) tears can also result in rotational instability of the joint. Subsequent insufficient rotational stability after the ACL reconstruction can be a direct consequence also of injuries to lateral knee structures, specifically the anterolateral ligament (ALL). This residual postoperative rotational instability may be prevented by multiple surgical techniques.

[Derotational Intertrochanteric Osteotomy in Habitual Dislocation of the Patella].

PURPOSE OF THE STUDY The preoperative planning in habitual dislocation of the patella should take into account all pathologies and the procedure should address all abnormalities. One of them might be also the rotational deformity of the femur. The purpose of this prospective study was to confirm the hypothesis that the only correction of pathological femoral anteversion by derotational intertrochanteric osteotomy (in the absence of another pathology) or the correction of femoral anteversion with simultaneous reconstruction of the patellofemoral joint provide adequate stability for the patellofemoral joint, with respect to the elimination of the risk of recurrent dislocation of the patella.

Allograft alone versus allograft with bone marrow concentrate for the healing of the instrumented posterolateral lumbar fusion.

Background Context: Spondylodesis in the operative management of lumbar spine diseases has been the subject of numerous studies over several decades. The posterolateral fusion (PLF) with pedicle screw fixation is a commonly used procedure.

Purpose: To determine whether the addition of bone marrow concentrate (BMC) to allograft bone increases fusion rate after instrumented posterior lumbar fusion.

[Post-operative retransfusion and intra-operative autotransfusion systems in total knee arthroplasty. A comparison of their efficacy].

Purpose Of The Study: The aim of the study was to compare the effect of post-operative retransfusion with that of intra-operative autotransfusion in non-anaemic patients undergoing total knee arthroplasty (TKA).

Material And Methods: Between February 2004 and June 2006, a total of 129 patients free of anaemia who underwent elective primary unilateral cemented TKA for primary arthritis received blood retransfusion by means of the post-operative retransfusion system. Intra-operative transfusion was not administered.

Development of a model osseo-magnetic link for intuitive rotational control of upper-limb prostheses.

The lack of proprioceptive feedback is a serious deficiency of current prosthetic control systems. The Osseo-Magnetic Link (OML) is a novel humeral or wrist rotation control system that could preserve proprioception. It utilizes a magnet implanted within the residual bone and sensors mounted in the prosthetic socket to detect magnetic field vectors and determine the bone's orientation.

[Latissimus dorsi transfer for the treatment of irreparable craniodorsal tears of the rotator cuff].

Purpose Of The Study: Latissimus dorsi transfer is a relatively complicated procedure subsequently requiring an active, long-term physical therapy. The surgeon's performance and a patient's effort are therefore of worth consideration. However, sutures of massive rotator cuff tears do not always produce good results.