Background: Femoral version abnormalities can contribute to intra-articular hip pathology. Combined arthroscopy with femoral derotational osteotomy (FDRO) has been shown successfully treat those pathology excessive anteversion or retroversion of the femur. Indications: We describe technique for combined and FDRO in patients symptomatic setting Technique Description: Hip is performed using stand...

The support of roadways in soft coal seams is a challenge deep mines. For gas-rich seams, many methods are developed to drain the gas before mining. penetrating hydraulic reaming (PHR) one most efficient reduce content and pressure seams. However, PHR method will cause large holes seam, which brings difficulty in-seam control. strength parameters essential for roadway stability analysis. sampli...

Authors’ Response: We greatly appreciate the viewpoints of Dr Jaiman concerning the timing/use of the 4.5-mm reamer when utilizing a flexible reamer for establishing a femoral tunnel. Using a flexible reamer system is very advantageous in creating a low femoral tunnel especially in the current context of concomitant anterolateral ligament (ALL) reconstruction or posterolateral corner reconstruc...

We describe the surgical approach that we have used over the last years for anterior cruciate ligament (ACL) reconstruction, highlighting the importance of arthroscopic viewing through the anteromedial portal (AMP) and femoral tunnel drilling through an accessory anteromedial portal (AMP). The AMP allows direct view of the ACL femoral insertion site on the medial aspect of the lateral femoral c...