PubMed Health⌕ Search

Biomedical subjects

W D Schaefer

Publications and source records attributed to W D Schaefer.

4 recordsLinked to original sources
PubMed2004

Complications associated with traction on the hip during arthroscopy.

We studied 16 hips (eight cadaver specimens) using arthrography, arthroscopy and anatomical dissection, under incremental traction of up to a maximum of 64 kg, to determine the relationship of the portals to nearby neurovascular structures. The distance of each arthroscopic portal (anterior, anterolateral, and posterolateral) to the associated neurovascular structures was measured after the application of 23 kg of traction. Traction of up to 64 kg on the lower limb failed to produce evidence of labral or capsular injury. Furthermore, traction of 23 kg resulted in little change in the position of adjacent neurovascular structures relative to the standard arthroscopic portals.

Arthroscopy↗
PubMed1996

Meniscal ossicle.

Meniscal ossicles are rare and may cause diagnostic difficulty on plain radiograph at presentation. Magnetic resonance imaging is useful in detecting meniscal ossicles because their characteristic appearance on MRI can differentiate them from other disease. Arthroscopy can also diagnose the meniscal ossicle, which in our patient appeared as a swelling in the meniscus. If the patient is asymptomatic before the time of diagnosis, removal of the ossicle may not be indicated and, as with our patient, normal function is possible with the ossicle retained.

Adult↗