BACKGROUND Resurfacing of the humeral head has gained interest as an alternative to traditional hemiarthroplasty because it preserves bone stock and respects the native geometry of the glenohumeral articulation. The purpose of this study was to compare the biomechanics of the intact glenohumeral joint with those following humeral head resurfacing and following hemiarthroplasty. METHODS Seven ...

The measurement of humeral kinematics with a sensor on the humerus is susceptible to large errors due to skin motion artifacts. An alternative approach is to use data from a forearm sensor, combined with data from either a scapular or thoracic sensor. We used three tasks to assess the errors of these approaches: humeral elevation, elbow flexion and humeral internal rotation. Compared with the h...

Certain arthropathies can distort the normal acromiohumeral relationship and make traditional anterolateral access to the proximal humerus for nailing difficult or impossible. This article presents a case of bilateral antegrade humeral nailing in which the Neviaser portal approach was used for humeral shaft fractures in a patient with distorted shoulder anatomy secondary to severe cuff tear art...

HUMERAL condylar fractures are among the most common fractures seen in dogs and account for approximately 20 per cent of the author’s canine fracture caseload, although this is a referral population and probably does not represent the true incidence of these injuries. It has long been recognised that spaniels are predisposed to humeral condylar fractures. It is now recognised that many of these...

variations in the origin of axillary artery branches are common. but, distinctly abnormal course of its posterior circumflex humeral branch is rare. we are reporting a case of posterior circumflex humeral artery (pcha) originating from the axillary artery, passing through lower triangular space to reach the scapular region where it accompanied the axillary nerve and posterior circumflex humeral...

OBJECTIVE To determine clinical characteristics of and outcome in Thoroughbred racehorses with tibial or humeral stress fractures. DESIGN Retrospective study. ANIMALS 99 Thoroughbreds with tibial or humeral stress fractures. PROCEDURE Information obtained from the medical records included history, signalment, and clinical, radiographic, and scintigraphic findings. Outcome was determined b...

What are the indications for shoulder replacement surgery? The most common indication for shoulder replacement remains primary glenohumeral osteoarthritis. Other indications include complex proximal humeral fractures, rheumatoid arthritis and other inflammatory arthropathies, humeral head osteonecrosis, instability arthropathy, posttraumatic arthritis, chronic fixed glenohumeral dislocation, ro...

Case. A right-handed 8-year-old female patient presented with a conventional, high-grade osteosarcoma involving her right humerus; through-shoulder amputation was recommended. After consultation, total humerus resection with expandable, total humeral endoprosthesis reconstruction was performed with a sleeve to encourage soft-tissue ingrowth. At three-year follow-up she has received one lengthen...

OBJECTIVES To assess the results and clinical outcome of delayed union and nonunion humeral shaft treatment using locked medullary nails. SUBJECTS AND METHODS The Russel and Taylor humeral locking nail was used to treat 21 patients with humeral shaft fractures at Al Razi hospital, Kuwait, from 1997 to 2001. Of these, 8 had delayed union and 13 nonunion. Also, 13 had previous operative treatme...

conclusions due to the shorter :union: time, to some extent less complication rate and comparable functional and clinical results, the authors recommend to use the mipo technique in treating the mid-distal humeral shaft fracture. results the median of :union: time was shorter in the mipo group (4 months versus 5 months). the time of surgery and functional outcomes based on the ucla and meps sco...