[Correlation of basic motor skills with arthroscopic experience].

Objectives: One of the methods in motor skill teaching is to furnish the students with the individual skills drawn from the target procedure. This method requires identification and defining of all components of the target procedure. This study aimed to define basic motor skills composing arthroscopic skillfulness.

[Approach to cartilage lesions and algorithm for treatment].

Cartilage symptoms in the knee may be encountered in various forms in orthopedic practice. The first stage from history to treatment is to establish the diagnosis; if the diagnosis is made as a cartilage lesion in the knee, priority must be given to current treatment approaches. The surgeon must provide information regarding etiology, defect thickness, lesion size, the containment of cartilage, localization, stability, meniscal integrity, anatomic alignment of the knee, previous assessments, radiological assessment (direct radiography, magnetic resonance imaging), and general, medical, and systemic conditions, and family history.

[Shoulder instability in athletes: principles of diagnosis and treatment].

Shoulder complaints are one of the leading reasons for a doctor's visit in athletes involved in overhead activities, and among them, dislocation and subluxation are very frequent clinical presentations. Although diagnosis and management of shoulder problems are more clear-cut in traumatic cases, atraumatic cases may be quite troublesome. In order to facilitate the interval between the presentation of complaints and institution of appropriate treatment, many issues should be appreciated including the anatomy, etiology, pathogenesis, clinical evaluation, and treatment of shoulder disorders.

[Lesions of the superior labrum anterior-posterior and biceps tendon].

Biomechanical studies have shown that the biceps tendon and the superior labrum have significant contributions to the glenohumeral stability. Since superior labrum anterior-posterior (SLAP) lesions pose diagnostic difficulties, they should be kept in mind when evaluating a painful shoulder. Although magnetic resonance arthrography is of great use in diagnostic studies, diagnostic arthroscopy is still the best method for these lesions.

[Chronic dislocations of the shoulder].

Diagnosis and management of chronic dislocations of the glenohumeral joint remain challenging. These dislocations usually occur in debilitated patients with a poor bone quality and they often have a decreased rehabilitation potential. Treatment can only be successful with early recognition of the condition, careful patient selection, and implementation of appropriate surgical techniques.

[The injection of acrylic bone cement prevents bone collapse in the intercalar bones lacking bony support: an experimental sheep semilunar bone model].

Objectives: In a sheep semilunar bone model, we investigated whether collapse in the intercalar bones lacking bony support could be prevented by the injection of acrylic bone cement.

Methods: The study included 16 limbs of eight sheep. Preoperatively, anteroposterior and lateral views of the carpal joints in the fore limbs were obtained.