The Survivorship and Clinical Results of Minimally Invasive Unicompartmental Knee Arthroplasty at 10-Year Follow-up.

Background: In this study, we investigated the long-term clinical results and survival rate of minimally invasive unicompartmental knee arthroplasty (UKA) by collecting cases that had been implanted more than 10 years ago.

Methods: One hundred and twenty-eight patients (166 cases) who underwent Oxford phase 3 medial UKA using the minimally invasive surgery from January 2002 to December 2002 were selected. The mean age of the patients at the time of surgery was 61 years, and the duration of the follow-up was minimum 10 years.

Comparative study of the treatment outcomes of osteoporotic compression fractures without neurologic injury using a rigid brace, a soft brace, and no brace: a prospective randomized controlled non-inferiority trial.

Background: The efficacy of brace application for the treatment of osteoporotic compression fractures remains unclear. The purpose of this study was to compare the treatment outcomes in patients with osteoporotic compression fractures with regard to whether the patients had no braces, rigid braces, or soft braces.

Methods: We randomly assigned sixty patients with acute one-level osteoporotic compression fractures within three days of injury to the no-brace, soft-brace, and rigid-brace groups through 1:1:1 allocation.

The analysis of risk factors in no thumb test in total knee arthroplasty.

Background: We would like to analyze the risk factors of no thumb test among knee alignment tests during total knee arthroplasty surgery.

Methods: The 156 cases of total knee arthroplasty by an operator from October 2009 to April 2010 were analyzed according to preoperative indicators including body weight, height, degree of varus deformity, and patella subluxation and surgical indicators such as pre-osteotomy patella thickness, degree of patella degeneration, no thumb test which was evaluated after medial prepatella incision and before bone resection (1st test), no thumb test which was evaluated with corrective valgus stress (2nd test, J test), and the kind of prosthesis. We comparatively analyzed indicators affecting no thumb test (3rd test).

A water-infusion system with two reservoirs at different levels.

To provide a continuous supply of fluid during arthroscopic surgery, we suggest an infusion system with 2 reservoirs placed at different heights. The lower bag serves as a water reservoir, which allows more time for the circulating nurse to complete the task of exchanging the emptied water bag.

A cannula for non-slip knots.

In this article, we introduce a modified cannula that has 1 process and 2 notches. We believe that this will allow a surgeon to complete tying of a non-slip knot without any slippage.