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https://www.readbyqxmd.com/read/29199895/radiological-evaluation-of-scapholunate-intercarpal-ligamentoplasty-for-chronic-scapholunate-dissociation-in-cadavers
#1
Lionel Athlani, Nicolas Pauchard, Gilles Dautel
We performed a cadaveric study to evaluate radiological performance of a technique for scapholunate intercarpal ligamentoplasty designed for treating reducible scapholunate dissociation. We created scapholunate instability in 12 fresh adult cadaveric forearms by sectioning the dorsal scapholunate interosseous ligament and the dorsal intercarpal ligament. All wrists showed scapholunate diastasis, dorsal intercalated segmental instability and posterior scaphoid subluxation. We performed scapholunate intercarpal ligamentoplasty in six wrists and Garcia-Elias three-ligament tenodesis in another six...
January 1, 2017: Journal of Hand Surgery, European Volume
https://www.readbyqxmd.com/read/29178063/evaluation-of-the-performance-of-three-tenodesis-techniques-for-the-treatment-of-scapholunate-instability-flexion-extension-and-radial-ulnar-deviation
#2
Teresa Alonso-Rasgado, Qing-Hang Zhang, David Jimenez-Cruz, Colin Bailey, Elizabeth Pinder, Avanthi Mandaleson, Sumedh Talwalkar
Chronic scapholunate ligament (SL) injuries are difficult to treat and can lead to wrist dysfunction. Whilst several tendon reconstruction techniques have been employed in the management of SL instability, SL gap reappearance after surgery has been reported. Using a finite element model and cadaveric study data, we investigated the performance of the Corella, scapholunate axis (SLAM) and modified Brunelli tenodesis (MBT) techniques. Scapholunate dorsal and volar gap and angle were obtained following virtual surgery undertaken using each of the three reconstruction methods with the wrist positioned in flexion, extension, ulnar deviation and radial deviation, in addition to the ulnar-deviated clenched fist and neutral positions...
November 25, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/29157783/effect-of-push-up-position-on-wrist-joint-pressures-in-the-intact-wrist-and-following-scapholunate-interosseous-ligament-sectioning
#3
Brett T Daly, Frederick W Werner, Salvatore M Cavallaro, Emily R Tucci, Brian J Harley
PURPOSE: To determine the contact pressures between the scaphoid and lunate and the distal radius during 2 wrist push-up positions before and following scapholunate interosseous ligament (SLIL) sectioning. METHODS: Eight fresh cadaveric wrists were tested in a neutral flexion-extension (knuckle) push-up position and in an extended push-up position. Pressure measurements were acquired as each wrist was loaded with the wrist in extension and with the wrist in a neutral position...
November 17, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/29104819/significance-of-scapholunate-gap-width-as-measured-by-probe-from-midcarpal
#4
Steffen Löw, Holger Erne, Ute Strobl, Frank Unglaub, Christian K Spies
Background  Geissler's classification is widely accepted in arthroscopic diagnostics of scapholunate (SL) ligament injury. Thereby, probe insertion into the SL gap from the midcarpal would indicate treatment necessity in patients with SL tear as seen from radiocarpal view. Purpose  In this review, the SL gap width, examined by the probe from midcarpal, was arthroscopically assessed in patients with intact SL ligaments, who were treated for ulnar impaction syndrome. The review examined how often lax SL joints can be found in patients with no complaints with respect to the SL ligaments and in which the SL ligaments were proven to be intact from radiocarpal view...
November 2017: Journal of Wrist Surgery
https://www.readbyqxmd.com/read/29103850/length-changes-in-scapholunate-interosseous-ligament-with-resisted-wrist-radial-and-ulnar-inclination
#5
Jun Tan, Jing Chen, Shuai Mu, Jin Bo Tang, Marc Garcia-Elias
PURPOSE: To investigate the changes in length of the scapholunate interosseous ligament (SLIL) when the wrist is resisting horizontal lateral load and the forearm is in full pronation in vivo. METHODS: We obtained computed tomography scans of the wrists of 6 volunteers in 3 situations: 0° position (0° extension and 0° ulnar inclination) and full forearm pronation without force, and in the same position but with resisted ulnar and radial deviation. Nine zones of 3 subregions of the SLIL were measured and analyzed with computer modeling...
November 2, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/29091493/ten-year-minimum-follow-up-of-4-corner-fusion-for-slac-and-snac-wrist
#6
Purnell Traverso, Anselm Wong, Ronit Wollstein, Lois Carlson, Duffield Ashmead, H Kirk Watson
BACKGROUND: Scapholunate advanced collapse (SLAC) of the wrist is the most common degenerative condition of the wrist. Four-corner fusion (4CF) is performed as salvage surgery, though there is limited information on its long-term results. We hypothesized that 4CF is a durable surgery with good clinical long-term function. METHODS: A retrospective chart review of patients undergoing 4CF as well as an interview and recent radiographs were obtained. Patients with a follow-up period of less than 10 years were excluded...
November 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/29071123/treatment-of-scapholunate-ligament-injury-current-concepts
#7
Jonny K Andersson
Injuries to the scapholunate joint are the most common cause of carpal instability.An isolated injury to the scapholunate ligament may progress to abnormal joint mechanics and degenerative cartilage changes.Treatment for scapholunate instability is aimed at arresting the degenerative process by restoring ligament continuity and normalising carpal kinematics.Early arthroscopic diagnosis of scapholunate injury is mandatory for establishing the prognosis of the injury, as a proper ligament repair is recommended within four to six weeks after trauma...
September 2017: EFORT Open Reviews
https://www.readbyqxmd.com/read/29068934/resurfacing-capitate-pyrocarbon-implant-versus-proximal-row-carpectomy-alone-a-comparative-study-to-evaluate-the-role-of-capitate-prosthetic-resurfacing-in-advanced-carpal-collapse
#8
COMPARATIVE STUDY
Francesco Giacalone, Pietro G di Summa, Alessandro Fenoglio, Arman Sard, Elisa Dutto, Matteo Ferrero, Maddalena Bertolini, Marc Garcia-Elias
BACKGROUND: The Resurfacing Capitate Pyrocarbon Implant associated with proximal row carpectomy has been used to treat symptomatic advanced carpal collapse, widening the indications of proximal row carpectomy to patients with capitate head arthritis. The authors retrospectively compared their case series of implant versus carpectomy alone, analyzing whether prosthetic implant outcomes could be similar to those of proximal row carpectomy even with a higher stage of osteoarthritis. METHODS: Fifty-seven patients who underwent surgery for wrist osteoarthritis (minimum follow-up, 2 years) were selected retrospectively...
November 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29036028/appropriateness-of-the-use-of-mri-in-the-diagnosis-and-treatment-of-wrist-ligamentous-injury
#9
Brett F Michelotti, Alexandra Mathews, Kevin C Chung
BACKGROUND: When diagnosing wrist ligamentous injury, we hypothesize that MRI is used injudiciously and is associated with unnecessary cost. METHODS: A retrospective review was conducted of patients, ages 20-60 years, who underwent an MRI for possible wrist ligamentous injury at a tertiary care center between 2009 and 2014. Treatment recommendation was classified as non-operative, operative, or equivocal. If the MRI-directed treatment recommendation differed from the pre-MRI treatment recommendation, we noted that the MRI influenced patient care (impact study)...
October 12, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29022774/the-management-of-chronic-non-arthritic-scapholunate-dissociation-a-systematic-review
#10
Zafar Naqui, Wee Sim Khor, Anuj Mishra, Vivien Lees, Lindsay Muir
A systematic review was conducted to identify the best management for chronic scapholunate dissociation. EMBASE, MEDLINE, and CENTRAL were searched from 1965-2016. A narrative synthesis was performed. One thousand, one hundred and ninety-one citations were identified, of which 17 had final analysis. In all interventions, the pain score at 2 years reduced from 6.0 to 2.8 with similar effect from capsulodesis and tenodesis techniques. Overall there was an 18% loss of flexion arc. Radial to ulnar arc improved in capsulodesis (+19%; n = 45) and worsened in tenodesis (-6%; n = 45)...
January 1, 2017: Journal of Hand Surgery, European Volume
https://www.readbyqxmd.com/read/28991587/arthroscopic-management-of-dorsal-and-volar-wrist-ganglion
#11
REVIEW
Christophe Mathoulin, Mathilde Gras
Dorsal and volar wrist ganglions are benign tumors; most of them are asymptomatic. They can disappear spontaneously. Arthroscopic resection can be performed for pain or cosmetic concern. Dorsal ganglion is more common (70%). The hypothesis of the origin is the result of mucoid dysplasia in association with intracapsular and extrasynovial ganglia that occur at the level of the dorsal scapholunate complex. Volar wrist ganglia are less common (20%) and occur mainly in the radiocarpal joint. They are due to capsular destruction at the volar insertion of the SL ligament and arise from the interval between radio scaphocapitate and long radiolunate ligament...
November 2017: Hand Clinics
https://www.readbyqxmd.com/read/28991585/arthroscopic-assisted-partial-wrist-arthrodesis
#12
REVIEW
Eva-Maria Baur
Partial wrist arthrodesis (PWA) is a well-known procedure for treating degenerative or posttraumatic wrist conditions. Four-corner fusion (4CF) is mostly used for scapholunate advanced collapse and scaphoid nonunion advanced collapse. The author performed 39 procedures, including 4CFs, 2-corner fusions, 3-corner fusions, scaphoid-capitate/scaphoid-capitate-lunate fusions, scaphoid-trapezium-trapezoid arthrodeses, and radioscapholunate arthroscopic PWAs (A-PWAs). There were 8 revision cases including 4 partial nonunions...
November 2017: Hand Clinics
https://www.readbyqxmd.com/read/28991581/arthroscopic-scapholunate-ligament-reconstruction-volar-and-dorsal-reconstruction
#13
REVIEW
Fernando Corella, Miguel Del Cerro, Montserrat Ocampos, Clara Simon de Blas, Ricardo Larrainzar-Garijo
Arthroscopic scapholunate volar and dorsal ligament reconstruction achieves an anatomic reconstruction, avoids an open approach and capsular detachment, and provides a strong construct for early mobilization. Clinical results are discussed. Detailed "surgical tips" and technical modifications are provided.
November 2017: Hand Clinics
https://www.readbyqxmd.com/read/28886667/the-effect-of-screw-trajectory-for-the-reduction-and-association-of-the-scaphoid-and-lunate-rasl-procedure-a-biomechanical-analysis
#14
Steven M Koehler, Christina M Beck, Philip Nasser, Matthew Gluck, Michael R Hausman
The purpose of this study was to determine if screw placement in the reduction and association of the scaphoid and the lunate (RASL) procedure affected the ability of the scapholunate joint to withstand force. After completely disrupting of the scapholunate ligament in 29 fresh-frozen cadaveric wrists, we placed the RASL screw either distal or proximal to the lateral aspect of the dorsal ridge of the scaphoid and into the dorsal or volar aspect of the lunate. Specimens were subjected to repeated cycles of transcarpal axial force, mimicking clenched-fist loading, until failure...
January 1, 2017: Journal of Hand Surgery, European Volume
https://www.readbyqxmd.com/read/28877592/the-optimal-location-to-measure-scapholunate-diastasis-on-screening-radiographs
#15
Joseph Said, Kevin Baker, Laviel Fernandez, David E Komatsu, Elaine Gould, Lawrence C Hurst
BACKGROUND: Lack of a universally accepted location and normal value limits the utility of measuring scapholunate diastasis. The primary purpose of this study was to define the optimal location to measure the scapholunate gap throughout sequential ligament transections. Secondary purposes were to compare plain radiographs with fluoroscopy and to evaluate interrater reliability in measuring scapholunate diastasis. METHODS: Five cadaver forearms were imaged with intact carpal ligaments and after sequentially transecting the scapholunate, radioscaphocapitate, and scaphotrapezium-trapezoid ligaments...
September 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28831343/biomechanical-properties-of-first-dorsal-extensor-compartment-regarding-adequacy-as-a-bone-ligament-bone-graft
#16
Michael G Jakubietz, Rafael G Jakubietz, Rainer H Meffert, Karsten Schmidt, Robert K Zahn
Bone-ligament-bone grafts for reconstruction of the scapholunate ligament are a valuable tool to prevent disease progression to carpal collapse. Locally available grafts do not require an additional donor site. The first extensor compartment was evaluated biomechanically regarding its possible use as an autograft. METHODS: Twelve native fresh-frozen, human cadaver specimens were tested by applying axial tension in a Zwick Roell machine. Load to failure, transplant elongation, and bony avulsion were recorded...
July 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28829651/experiences-with-osteoligamentoplasty-according-to-weiss-for-the-treatment-of-scapholunate-dissociation
#17
W Petersen, J Rothenberger, H E Schaller, A Rahmanian-Schwarz, M Held
BACKGROUND: In post-traumatic, dynamic, or static scapholunate (SL) instability, an SL ligament reconstruction is advisable to avoid long-term complications. However, a sufficient primary reconstruction is best achieved in acute injuries. For chronic SL dissociation, there is still no satisfying standard surgical technique. In this context, we evaluated the clinical outcome of Weiss's osteoligamentoplasty as a treatment option. METHODS: Over a three-year period, 16 patients with chronic and symptomatic SL dissociation Grade-II and III, without the signs of osteoarthrosis were, surgically treated using a bone-retinaculum-bone autograft from the distal radius...
August 22, 2017: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
https://www.readbyqxmd.com/read/28828602/association-of-lunate-morphology-sex-and-lunotriquetral-interosseous-ligament-injury-with-radiologic-measurement-of-the-capitate-triquetrum-joint
#18
Marissa Borgese, Robert D Boutin, Christopher O Bayne, Robert M Szabo, Abhijit J Chaudhari
OBJECTIVE: Radiologic presentation of carpal instability at the radial side of the carpus, e.g. scapholunate diastasis following scapholunate interosseous ligament injury, has been studied extensively. By comparison, presentation at the ulnar-sided carpus has not. The purpose of this study was to assess the effects of lunate morphology, sex, and lunotriquetral interosseous ligament (LTIL) status on the radiologic measurement of the capitate-triquetrum joint (C-T distance). Further, we sought to evaluate the diagnostic accuracy of C-T distance for assessing LTIL injuries...
December 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28806833/-dynamic-correction-of-scapholunate-instability-using-an-ecrl-tendon-strip-and-a-free-pl-interponat
#19
Evelin Soleman, Lukas Fatzer, Tomas Sanchez
The present article describes our technique of correction of static reduceable scapholunate instability.
August 2017: Handchirurgie, Mikrochirurgie, Plastische Chirurgie
https://www.readbyqxmd.com/read/28806832/-dorsal-ligamentoplasty-for-posttraumatic-scapholunate-dissociation
#20
Ralf Bajinski, Joachim Gülke, Martin Mentzel, Florian Sigloch, Moritz Dustmann, Nikolaus Johannes Wachter
Scapholunate dissociation in stages 2 and 3 may lead to posttraumatic damage if left untreated. Different types of treatment have been described, including capsulodesis, tenodesis, and others. The purpose of all procedures is to avoid palmar shift of the distal scaphoid resulting in secondary arthritis (SLAC wrist). This study aimed to evaluate a modified dorsal ligamentoplasty in second- and third-degree scapholunate dissociation in a prospective study design. Furthermore, the study aimed to find out if there is a correlation between radiological and clinical parameters at follow-up and whether or not a SLAC wrist can be avoided...
August 2017: Handchirurgie, Mikrochirurgie, Plastische Chirurgie
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