Quantitative anatomical study of the posterior interosseous nerve.

An anatomic study of the posterior interosseous nerve (PIN) in 20 cadaver upper limbs was performed to measure different segments of the PIN and its relationship with radius and ulna (results given as mean +/- SD). The length of the PIN from radial head to the arcade of Frohse (AF) was 26.5 +/- 1.

Intraoperative rotational measuring device: a new device to achieve accuracy in corrective osteotomy of malrotated femur.

A new derotation device for corrective femoral osteotomy is reported. This device helps eliminate errors of undercorrection and overcorrection in derotational osteotomies of femurs with torsional deformities. A prototype of the intraoperative rotational measuring device was tested on 16 cadaver femurs.

CT-guided sacroiliac joint injections.

Confusion surrounding low back pain syndrome may partially be resolved in a select small group of patients by instituting a provocative intraarticular injection of a combination of a local anesthetic and a steroid. This approach enables one to determine whether the sacroiliac joint (SIJ) is the site of origin of the low back pain syndrome. We carried out a study of 71 computed tomography (CT)-guided injections in 58 patients with noninflammatory etiology.

Early experience with endoscopic carpal tunnel release.

83 hands in 69 patients had endoscopic carpal tunnel release by the Chow method over a 14-month period. 78% of these had a satisfactory outcome with relief of symptoms and no complications. Poor results were explained by incomplete ligament division (five patients), wrong diagnosis (two hands), and post-operative nerve problems (five hands).