The coexistence of multiple hominin species during the Lower Pleistocene has long presented a challenge for taxonomic attribution of isolated postcrania. Although fossil humeri are well-suited for studies of hominin postcranial variation due to their relative abundance, humeral articular morphology has thus far been of limited value for differentiating Paranthropus from Homo. On the other hand,...

Approximately 1-3% of all human fractures and 5-10% of all long bone fractures occur in the humeral shaft [1,2]. They account for about 20% of all humeral fractures [1]. The humeral shaft is situated between the superior margin of pectoralis major tendon insertion to supracondylar ridges. The incidence of those fractures in population is 14-20/100 000 per year [1]. Their importance is great bec...

Proximal humeral fractures are a common injury after falls, particularly in the elderly population. An ultrasound-guided hematoma block is a novel technique for analgesia in cases when standard intravenous analgesia is not efficacious. We present a case in which ultrasound-guided hematoma block was the ideal method for adjunctive pain control in a patient with a comminuted humeral head fracture.

background: the aim of this study was to determine the treatment outcome of humeral shaft fractures with a locked rigid intramedullary nail in patients indicated for surgical treatment. methods: in this descriptive-cross sectional study, all patients were followed up for one, six, and 18 months post operatively. the short form questionnaire (sf-36) and constant shoulder score were applied. resu...

Study Design: Single-group repeated-measures design. Objectives: To investigate the ability of the wall slide exercise to activate the serratus anterior muscle (SA) at and above 90° of humeral elevation. Background: Strengthening of the SA is a critical component of rehabilitation for patients with shoulder impingement syndromes. Traditional SA exercises have included scapular protraction exerc...

OBJECTIVE To evaluate the assumption that shoulder kinematic patterns of the ipsilateral, nonparetic shoulder in hemiplegia are similar to kinematics recorded in a healthy population. DESIGN Case control study of a convenience sample of ten patients with hemiplegia due to stroke in the subacute phase compared with a control group of similar age. Three-dimensional positions of the scapula and ...

STUDY DESIGN Two-group mixed-model analysis of covariance and correlation analysis. OBJECTIVES To determine whether differences in humeral translations exist between patients with shoulder impingement symptoms and an asymptomatic comparison group, and if so, to determine if shoulder range-of-motion (ROM) measures are associated with abnormal translations. BACKGROUND Abnormal translations of...

Whether axillary artery injuries associated with proximal humeral fractures must be repaired is uncertain. The present study reports three cases treated with various approaches. In case 1, the left humeral surgical neck was broken, the radial pulse disappeared and the arm temperature was significantly reduced. Computerized tomography angiography (CTA) revealed a 3-cm filling deficiency in the a...