Suwannakhan A, Tawonsawatruk T, Meemon K. Anatomical variations of the hand extensors. Anatomic Variations in the First Extensor Compartment of the Wrist: Accuracy of US. Rousset P, Vuillemin-Bodaghi V, Laredo J-D, Parlier-Cuau C. Anatomical variations in the first extensor compartment: a cadaver study. The extensor digitorum brevis manus and its clinical significance. Guidelines for standard photography in gross and clinical anatomy. The clinical significance of the extensor digitorum brevis manus. Using dynamic sonography to diagnose extensor digitorum brevis manus. MRI of soft tissue masses of the hand and wrist. Plotkin B, Sampath SC, Sampath SC, Motamedi K. Surgical anatomy of the first extensor compartment: A systematic review and comparison of normal cadavers vs. The extensor indicis brevis muscle with an unusual ganglion. Accessory Muscles: Anatomy, Symptoms, and Radiologic Evaluation. Sookur PA, Naraghi AM, Bleakney RR, Jalan R, Chan O, White LM. A Rare Variation of the Extensor Indicis Proprius Tendon With Important Clinical Implications. Article DetailsĬasal D, Pais D, Bilhim T, Ribeiro V, Cunha S, Damásio C, et al. The presence of accessory tendons might assist in finding alternative tendon sources for tendon grafts. A thin accessory tendon was detected from the extensor carpi ulnaris (ECU) at the ulnar styloid process.Ĭonclusion: Tendon variations of the dorsal compartments of the wrist and the relationship between the ED slip and accessory tendons should be considered when planning surgical treatment. The lateral was accepted as the main APL and the medial as the accessory tendon. Four out of fourteen wrists (28.5%) had APL tendon variations. The radial tendon was accepted as an accessory EDQP but did not join the extensor digitorum (ED), and the ulnar tendon was normal. Ulnar and radial tendons of the EDM were detected in the right wrist of one female cadaver. Results: A double tendon of the extensor digiti minimi was detected in one female cadaver out of the 14 fixed cadavers. The tendon variations in the extensor compartments of the wrist and their abnormal insertion sites were recorded, and the number, length, width, and type of accessory tendons were also recorded. Methods: Fourteen fixed wrists of adult cadavers were dissected. This study was performed to investigate the variations of the extensor compartments of the wrist and a relation between the thickness of extensor digiti minimi (EDM) and abductor pollicis longus (APL) tendons and accessory extensor digiti quinti proprius (EDQP) slip to the little finger. Clinically this study lends insight to the strength of bone-retinaculum-bone autografts and the etiology of extensor carpi ulnaris subluxation.Objective: Detailed anatomical knowledge of the accessory tendons of the dorsal compartments of the wrist is crucial for understanding the effects of tendon injury due to external trauma or rupture. This study offers detailed analysis of the extensor retinaculum compartments and 3-dimensional anatomy of the septal attachments. Compartment 6, which was thought to be the weakest because of clinically observed subluxation of the extensor carpi ulnaris tendon, had stronger failure data than expected. In compartment testing, compartments 1 and 2 had the highest overall resistance to failure and compartment 5 had the lowest. Septum 1/2 also was found to have the highest failure strength at 51.3 +/- 15.3 N. Septum 1/2 had the largest radial surface area and septum 3/4 had the smallest. Finally the 6 extensor retinaculum compartments were tested to failure. Next each extensor retinaculum septum was excised as a bone-retinaculum-bone autograft and was tested in tension to failure with a materials testing machine. First, anatomic measurements of the individual extensor retinaculum septums were performed with calipers and a 3-dimensional digitizer. Thirty-four wrists from 24 fresh-frozen and 10 embalmed cadavers were used. The anatomy of the extensor retinaculum of the wrist has been described previously the purpose of this study was to describe the specific anatomy of the septal attachments on the radius and to investigate the mechanical strength of each septal attachment on the radius and each of the 6 compartments of the extensor retinaculum.
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