The scapholunate is an interosseous carpal ligament that provides stability to the proximal carpal row. It consists of dorsal, proximal and palmar segments that bridge the scaphoid and lunate. When the ligament complex tears, the scaphoid tends to flex while the lunate extends, creating translational and rotational instability between the two.

original scapholunate ligament and do its job. No scapholunate ligament A removable splint will be supplied for intermittent support and stretching exercises

It is anatomically divided into 3 regions: dorsal, proximal, Radiology 24 years experience Wrist: Scapholunate dissociation is caused by scapholunate ligament tear which creates widening of scapholunate space. This is the most common ligament injury of the wrist which if untreated may lead to dorsal intercalated segment instability (disi) and … An acute SL dissociation is shown--a gap greater than 3 mm between the scaphoid and lunate (see arrow) Acute SL dissociation results in a near vertical scaphoid--thus the normal angle increases to greater than 60 degrees Scapholunate (SL) dissociation is part of a spectrum of traumatic carpal bone instabilities and is defined as disruption of the ligamentous complex holding the scaphoid and lunate together. 1 The SL ligament complex consists of the volar, dorsal, and intermediate components, with the dorsal component being the strongest and primary stabilizer of the SL joint. 2 SL dissociation often results 2020-02-01 2019-10-11 2002-01-01 There is an intra-articular radial styloid fracture. Importantly, there is widening of the scapholunate distance (Terry Thomas sign) consistent with scapholunate dissociation. Scapholunate Ligament Post Operation Handout.

Se hela listan på sportsmd.com 2020-08-17 · Dagum AB, Hurst LC, Finzel KC. Scapholunate dissociation: an experimental kinematic study of two types of indirect soft tissue repairs. J Hand Surg Am. 1997 Jul. 22 (4):714-9. . Slater RR Jr, Szabo RM, Bay BK, Laubach J. Dorsal intercarpal ligament capsulodesis for scapholunate dissociation: biomechanical analysis in a cadaver model.

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Reduce scapholunate interval using two Kirschner wires as joysticks. Splint the wrist for approximately 2 to 3 months, at which time the Kirschner wires are tendon reconstruction using a cadaveric model of static scapholunate dis

A third K-wire can be placed. Description: Scapholunate Ligament Disruption is an injury involving the ligaments attaching the scaphoid to the lunate. There is a dorsal and volar ligament as well as proximal ligament which connect these two carpal bones.

1 Sep 2004 Local tenderness. Scapholunate dissociation. Tenderness over scapholunate ligament, increased gap between scaphoid and lunate on plain

This ligament is in the middle of the wrist between the scaphoid and lunate bones (Figure 1). It is an important structure for painless and full wrist motion. scapholunate dissociation causes the scaphoid to flex palmar and the lunate to dorsiflex if left untreated the DISI deformity can progress into a SLAC wrist DISI deformity may also develop secondary to distal pole of the scaphoid excision for treatment of STT arthritis DISI is a form of carpal instability dissociative Although "scapholunate dissociation" is a descriptive term, it is used synonymously with its primary pathophysiologic correlate, scapholunate interosseous ligament (SLIL) injury. Although injury to additional ligaments is present in scapholunate dissociation, the SLIL is the major target of surgical reconstruction. Its characteristics are the dissociation of the scaphoid and the lunate, with flexion of the scaphoid, and extension of the lunate. The reconstruction of rotational stability between the scaphoid and the lunate is the key to restoring normal wrist kinematics. Treatment of Acute SL (Scapholunate) Dissociation.

5. Evaluate and classify scapholunate instability from radiocarpal and midcarpal portals. 6. Use 3-4 portal as the viewing portal and 4-5 portal as the working portal. 7. Clean inﬂammatory tissue from the dorsal portion of the scapholunate interosseous ligament.
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25 Dissociation of the scapholunate joint is the most frequent carpal instability. 26 About 13.4% of distal radius fractures are associated with scapholunate dissociation. 27 Mayfield et al described scapholunate dissociation as the If you had a recent scapholunate ligament injury, the early goal of treatment will be pain control. This may include wearing a wrist splint or cast, decreasing activity and resting the wrist.

2015-11-07 Scapholunate dissociation Power Point 1. 46yo for most cases will need operative repair of interosseous ligament. Can place patient in thumb spica splint and have patient f/u with ortho within one week. Untreated, SLD can lead to DISI, Detailed step by step desription of ORIF of Lunotriquetral dissociation for Perilunate, After emergency reduction, the wrist is immobilized in a plaster splint, or cast (Colles), In most of the cases, the scapholunate (SL) Scapholunate Dissociation The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas" sign to diagnosis scapholunate dissociation.
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2020-02-01 · This simple technique usually stabilizes the scapholunate dissociation. Reduction can be checked by midcarpal testing; if it is not satisfactory, complementary scapholunate and scaphocapitate pinning is performed . Anterior splint immobilization is applied for 45 days; if pins have been used, they are removed at 6-8 weeks.

Treatment of Acute SL (Scapholunate) Dissociation. September 8th, 2008. An acute complete tear of the ligament between the scaphoid and lunate bones commonly results from a forceful hyperextension injury to the wrist---for example after a fall onto an outstretched hand or a car accident. Scapholunate dissociation is a difficult and unresolved problem in orthopedic hand surgery. Scapholunate ligament repair alone leads to failure and progression of scapholunate advanced collapse If you had a recent scapholunate ligament injury, the early goal of treatment will be pain control. This may include wearing a wrist splint or cast, decreasing activity and resting the wrist.