Efficacy of periarticular multimodal drug injection after medial opening-wedge high tibial osteotomy: a randomized, controlled study.

Purpose: The purpose of this study was to evaluate the efficacy of periarticular multimodal drug injection after medial opening-wedge high tibial osteotomy regarding the postoperative pain level.

Methods: From January 2011 to January 2012, 70 patients underwent medial opening-wedge high tibial osteotomy. Thirty-five patients were randomly assigned to receive no injection (group I), and 35 patients were assigned to receive periarticular multimodal drug injection (group II).

Second-look arthroscopic assessment of cartilage regeneration after medial opening-wedge high tibial osteotomy.

Purpose: The purposes of this study were to evaluate regeneration of the articular cartilage after medial opening-wedge high tibial osteotomy for knees with medial-compartment osteoarthritis and to assess the clinical outcome and cartilage regeneration according to the postoperative limb alignment at 2 years postoperatively.

Methods: The study involved 159 knees in 159 patients. For evaluation of cartilage degeneration, the International Cartilage Repair Society grading system was used for arthroscopic grading on initial arthroscopy during high tibial osteotomy.

Comparative study of medial opening-wedge high tibial osteotomy using 2 different implants.

Purpose: The purpose of this study was to perform a retrospective clinical and radiographic evaluation after opening-wedge high tibial osteotomy (HTO) using a short spacer plate (Aescula; B. Braun Korea, Seoul, South Korea) and rigid long plate (TomoFix plate; Mathys, Bettlach, Switzerland) at follow-up 2 years postoperatively.

Methods: We performed 94 opening-wedge HTOs with the Aescula plate (group I) and 92 HTOs with the TomoFix plate (group II).

No difference in total blood loss, haemoglobin and haematocrit between continues and intermittent wound drainage after total knee arthroplasty.

Purpose: The purpose of this prospective randomized study was to compare the visible, hidden, total blood loss and postoperative haemodynamic change of 4-h clamping and nonclamping of the drain after TKA. The hypothesis in the present study was that intermittent drain clamping with injection of diluted epinephrine solution would decrease the visible, hidden blood loss and reduction of postoperative haemoglobin or haematocrit change after TKA.

Methods: From January 2010 to January 2011, 100 TKAs were performed at our hospital.

The accuracy of the extramedullary and intramedullary femoral alignment system in total knee arthroplasty for varus osteoarthritic knee.

Purpose: The intramedullary (IM) femoral alignment system does not alway guarantee accuracy of the component position in the total knee arthroplasty (TKA). In some cases, the extramedullary (EM) femoral alignment system in total knee arthroplasty (TKA) is a useful alternative surgical option to adjust femoral component alignment. In the EM technique, accuracy of the femoral head center location is mandatory.

Arthroscopic, suture anchor repair through a novel medial quadriceptal portal for medial meniscal root tear.

Current options for meniscal root repair include repair into trans-osseous bone tunnels, trans-osseous suture passage for surface fixation, and suture anchor fixation. Suture anchor repair techniques have been developed since it eliminates the issue of the suture abrasion, tunnel drilling, and distal fixation inherent to trans-osseous tunnel. We present a description of a new variation in the more vertical suture anchor repair technique for meniscal root tear using a novel medial quadriceptal portal.