Outcomes of revision arthroscopic type II superior labral anterior posterior repairs.

Background: Outcomes of arthroscopic type II superior labral anterior posterior (SLAP) repairs have been reported with success. However, published data regarding outcomes of revision arthroscopic type II SLAP repairs are lacking.

Hypothesis: Outcomes of revision arthroscopic type II SLAP repairs are inferior to those of primary repairs.

The utility of posterior sloping angle in predicting contralateral slipped capital femoral epiphysis.

Purpose: Prophylactic pinning of the uninvolved side after unilateral slipped capital femoral epiphysis (SCFE) is controversial. The posterior sloping angle (PSA) has previously been proposed to predict contralateral slip. The purpose of this study was to determine whether the PSA can predict subsequent slip after unilateral SCFE, and if so, whether a sex difference exists.

Compartment syndrome in tibial fractures.

Objectives: Compartment syndrome is a devastating complication of tibial fractures. The purpose of this study was to investigate the rate of clinically determined compartment syndrome requiring surgical intervention in tibial fractures by anatomical region and to identify the associated patient and injury factors.

Design: Retrospective cohort.

Systematic review of cemented and uncemented hemiarthroplasty outcomes for femoral neck fractures.

Although hemiarthroplasties are an important treatment for femoral neck fractures, the literature does not provide a clear approach for selecting the implant fixation method. Therefore, we performed a systematic search of the medical literature and identified 11 prospective and retrospective studies that compared results between cemented and uncemented femoral implant fixation methods. After independent blind data extraction, we compared variables between cemented and uncemented cohorts using two different meta-analysis models.

Multisoliton propagation in a linear granular chain.

When m grains hit a linear Hertzian chain of identical grains, m solitons are generated. We studied the multisoliton propagation using a particle dynamic simulation. The speed of solitons depends not only on the number of colliding grains but also on the sequence of generation.

Estrogen receptor-alpha gene haplotype is associated with primary knee osteoarthritis in Korean population.

Estrogen and estrogen receptors (ERs) are known to play important roles in the pathophysiology of osteoarthritis (OA). To investigate ER-alpha gene polymorphisms for its associations with primary knee OA, we conducted a case-control association study in patients with primary knee OA (n = 151) and healthy individuals (n = 397) in the Korean population. Haplotyping analysis was used to determine the relationship between three polymorphisms in the ER-alpha gene (intron 1 T/C, intron 1 A/G and exon 8 G/A) and primary knee OA.