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Background: There are two principles of operative technique for the treatment of acromioclavicular dislocation. One is transarticular of the acromioclavicular fixation of the acromioclavicular joint and the other is coracoclavicular fixation. Both two techniques may or may not include ligamentous repaired. However, both techniques have many complications. Objective: To present a new operative technique which based on extensive studying of anatomy of this particular area. This technique is open reduction and transfixation the lateral end of clavicle to the base of acromion process with single malleolar screw and washer. Study Design: Case report. Setting: Orthopedics department, Faculty of Medicine, Khon Kaen University.Results: The reliability technique was presented by using the aiming device for directing the drill from the clavicle to scapular spine. This technique was done in one patient. This technique provides the ritid and stable fixation of the joint, therefore, the patient can move his shoulder immediately after operation. Conclusion: The new operative technique for acromioclavicular joint dislocation has been presented.
RESUMO
Background: lnjury to the posterior interosseous nerve (PIN) can be caused by trauma, by non-trauma. Measurement of the PIN the proximal radius in Thai patientshas been documented, but the relationship was unclear.This study has set out to define the relationship of theposterior interossous nerve to the proximal radius clearly.Objective: To measure the relationship of the PIN to the proximal radius to establish a guide to the posterolateral approach to the proximal radius during orthopedic interventions.Design: Descriptive studySetting: The Gross Anatomy Laboratory, Department of Anatomy, Khon Kaen University.Subjects: forearms on 66 Thai cadavers (25 male and 8 female). Age range at time of decease 22 to 82 years.Measurement: 1. Distance of the PIN from the radial articular surface to the branches emerging from thesupinator 2. Distance of the PIN from the radial articular surface to the first branch to the extensor carpi ulnaris, extensor digitorum communisresults: 1. The mean distance of the PIN from the radial articular surface to the branches emerging from the supinator was 5.35 + 0.86 cm. 2. The mean distance of the PIN from the radial articular surface to the first branch was 5.69 + 0.82 cm.Conclusion: These results that interventions 5.35 cm. to 5.69 cm. from radial articular surface to the proximal radius could pose a danger to the integrity of the PIN.Keyword: (1) Posterior lnterosseous Nerve (2) Radius
RESUMO
Background: Accessory belly of the hypothenar muscles in hand have been involved in vascular and nerve compression. The most common variable muscle is abductor digiti minimi (AbDM). The purpose of this study is to investigate the anomaly of AbDM that is called AAbDM.Objective: To study quantity and describe the AAbDM in Thai people.Study design: A descriptive studySetting: The study was carried out at the Department of Anatomy, Faculty of Medicine, Khon Kaen University, Thailand.Subject: The study included six hundred hands from 300 formalin-embalmed cadavers, 25-82 years of age.Methods: 1. Study the number of hands which was found AAbDM. 2. Describe the origin, insertion and nerve supply of each muscle.Results: Only one hand from 600 hands was seen AAbDM. It was found in the right hand of Thai male cadaver aged 55 years. The origin of this muscle arises from pisiform bone, splitting from AbDM then forms aponeurosis and inserts into the base of the proximal phalanx of the fifth finger. The innervation is by the deep branch of ulnar nerve.Conclusion: Only one right hand from 600 hands was found AAbDM. The origin, insertion and nerve supply of this muscle were described.Key Words: Abductor digiti minimi muscle, Accessory abductor digiti minimi muscle, Variation, Anomaly.