Transtendinous Rotator Cuff Tear Repair with Bone Marrow Aspirate Concentrate Dermal Allograft Augmentation.

Rotator cuff tears involving the musculotendinous junction with a significant amount of tendon still attached to the footprint laterally represent a challenging scenario for shoulder arthroscopists. Because of these challenges, adjunctive techniques to bridge tissue gaps may be required, and biologic augmentation may be considered to improve the healing environment. The following technique presents a stepwise approach to accomplishing the dual goals of a stable anatomic repair and biologic augmentation of this difficult pattern of rotator cuff pathology.

Arthroscopic Posterior Capsular Release for Loss of Knee Extension.

Arthrofibrosis, as a result of osteoarthritis, after trauma, or after knee surgery, can have significant implications for patient function, satisfaction, and outcomes. When extensive conservative management fails to achieve satisfactory results, surgical intervention may be necessary. Arthroscopic techniques to release anterior adhesions are often viewed as easier and safer than posterior releases required for flexion contractures.

The prescience of paleoclimatology and the future of the Antarctic ice sheet.

The emerging view that the West Antarctic ice sheet is in the early stage of collapse owes as much to paleoclimatology as to contemporary observations.

Using Rasch measurement to validate the Big Five factor marker questionnaire for a Japanese university population.

In recent years, psychological studies have increasingly come to support the so-called "Big Five" or "Five-factor Model" (FFM) of human personality. However, the vast majority of research in this field has been undertaken in Western contexts, thus raising the question of how applicable the Big Five is to Asian populations. Moreover, nearly all research into the Big Five has relied on traditional techniques of statistical analysis (e.