Relevancy and reproducibility of magnetic resonance imaging (MRI) interpretation in multiple-ligament injuries and dislocations of the knee.

Introduction: After multiple-ligament injuries and dislocations of the knee, clinical assessment of the soft tissues is difficult and MRI is generally performed.

Hypothesis: MRI is a reliable examination, providing a precise and reproducible assessment of soft-tissue lesions after multiple-ligament injuries or dislocations of the knee.

Materials And Methods: Forty patients presenting multiple-ligament lesions of the knee were included in this multicenter prospective study.

In vivo positioning analysis of medial patellofemoral ligament reconstruction.

Background: Several techniques have been described for reconstruction of the medial patellofemoral ligament (MPFL). The anatomical insertion of the MPFL has been defined; however, there are no reports describing the accuracy of femoral graft positioning assessed postoperatively.

Purpose: To analyze our femoral tunnel positioning for MPFL reconstruction in correlation with our clinical results.

Patellar tendon length--the factor in patellar instability?

Patellar tendon length has been compared in 42 knees with a history of patellar dislocation, and 51 control knees. A lateral X-ray and a magnetic resonance image (MRI) were taken of each knee. The mean radiological patellar tendon length was 46 mm in the controls and 53 mm in the dislocation group.

[MRI of the rotator cuff: evaluation of a new symptomatologic classification].

The different classifications use for the rotator cuff pathology seem to be incomplete. We propose a new classification with many advantages: 1) Differentiate the tendinopathy between less serious (grade 2A) and serious (grade 2B). 2) Recognize the intra-tendinous cleavage of the infra-spinatus associated with complete tear of the supra-spinatus.

[Diagnosis of stenoses of the renal artery graft by pulsed echo Doppler velocimetry. Application to the prospective evaluation of the incidence of stenoses of renal graft artery].

The value of pulsed Doppler velocimetry (PDV) to detect renal graft artery stenosis was evaluated in a prospective study of 42 kidney-transplanted adult patients. The results of PDV were compared with those of arteriography which is regarded as a reference examination. With PDV the diagnostic sensitivity was 85 percent and specificity was 82 percent.