[Effectiveness of low molecular weight heparin for prevention of deep vein thrombosis after total hip arthroplasty].

Objective: To investigate the pathogenesis of deep vein thrombosis (DVT) after total hip arthroplasty (THA) and the preventive effectiveness of low molecular weight heparin (LMWH).

Methods: The occurrence condition of DVT in 90 cases undergoing THA treated with LMWH between February 2003 and March 2004 was retrospectively analyzed. Among 90 cases, 39 were treated with LMWH at a dose of 5000 U/day (high dose group) and 51 at a dose of 2500 U/day (low dose group).

[Repair of finger tissue defect with modified island flap based on reversed dorsal metacarpal artery].

Objective: To investigate the operative procedure and the clinical results of the modified island flap based on the reversed dorsal metacarpal artery for repairing finger tissue defect.

Methods: From January 2004 to March 2009, 38 patients (43 fingers) with finger tissue defect were treated with the modified island flaps based on the reversed dorsal metacarpal artery. The diverting point was altered from the dorsal point to the palm.

[Repair of origin of medial collateral ligament rupture with malposed-suture hanging and fastening method of double-lariat lock catch knot].

Objective: To investigate the method and curative effect of malposed-suture hanging and fastening method of double-lariat lock catch knot in repairing origin of medial collateral ligament (MCL) rupture.

Methods: From February 2008 to February 2009, 36 patients with acute MCL rupture were treated with malposed-suture hanging and fastening method of double-lariat lock catch knot. There were 21 males and 15 females with an average age of 40 years (range, 17-58 years), including 19 left knees and 17 right knees.