Rehabilitation implications of stepper exercise technique on exertion and hip extensor muscle activation--a small exploratory study.

This study evaluated which of two different stair-stepping techniques produced a higher level of perceived physical exertion and whether magnetic resonance imaging (MRI) can identify gluteus maximus activation during stepper exercise and/or differences in gluteus maximus activation between exercise techniques. The study was a prospective, single-blind, randomized, two-period, crossover trial. The stair-stepping techniques were 15-minute sessions of (1) short steps with arms unsupported (Short) or (2) full steps with arms supported (Full).

Musculoskeletal radiology curriculum for radiology residents.

This article outlines a curriculum for resident education in musculoskeletal radiology that addresses the current requirements for assessment of the general competencies as set forth by the Accreditation Council for Graduate Medical Education.

Pathologic and MR imaging features of benign fibrous soft-tissue tumors in adults.

Benign fibrous (fibroblastic or myofibroblastic) soft-tissue tumors are a heterogeneous group of fibrous lesions with widely varied anatomic locations, biologic behavior, and pathologic features. The four broad categories of fibrous proliferation are benign fibrous proliferations, fibromatoses, fibrosarcomas, and fibrous proliferations of infancy and childhood. The first two categories include nonaggressive fibroblastic lesions such as nodular fasciitis, as well as fibromatoses that demonstrate more aggressive biologic behavior (eg, desmoid tumors).

Diagnosis of superior labral lesions: comparison of noncontrast MRI with indirect MR arthrography in unexercised shoulders.

Objective: To prospectively compare the accuracy of noncontrast magnetic resonance imaging (MRI) with indirect MR arthrography (I-MRa) of unexercised shoulders for diagnosis of superior glenoid labral lesions.

Materials And Methods: Institutional Review Board approval and patient informed consent were obtained for this prospective study. Superior labral findings on shoulder MRI and unexercised I-MRa studies of 104 patients were correlated with findings at arthroscopic shoulder surgery.

Prognostic value of magnetic resonance arthrography for Czerny stage II and III acetabular labral tears.

Purpose: To assess the intraobserver reliability and prognostic value of magnetic resonance arthrography (MRA) on the basis of postoperative outcome measures following arthroscopic acetabular labral debridement (partial limbectomy).

Methods: Between January 1999 and November 2000, 24 patients (13 females, 11 males) with an average age of 37.1 years (range, 21 to 56 years) underwent hip arthroscopy for the treatment of presumed acetabular labral tears.