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Campbell M, Schurmans G, Suh N, Garvin G, Lalone E. The Sensitivity of the Scapholunate Interval and Bony Landmarks to Wrist Rotation on Posteroanterior Radiographs. Hand (N Y) 2024:15589447241255705. [PMID: 38813864 DOI: 10.1177/15589447241255705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
BACKGROUND The objective of this study was to examine the effect of wrist rotation on the scapholunate interval in the posteroanterior radiograph and to identify radiographic landmarks on the posteroanterior projection that can be used to assess position. METHODS Eleven healthy cadaveric wrists were radiographed in the neutral position and subsequently were rotated and imaged from 30° pronation to 30° supination in 10° intervals. At each interval, the scapholunate interval was measured as well as the following landmarks: (1) the visible perimeter of the base of the hook of the hamate; (2) the radial-ulnar distribution of the dorsal nonarticular surface of the distal third metacarpal head; (3) the radial-ulnar distribution of the pisiform about the longitudinal axis of the ulna; and (4) the overlap of the pisiform and triquetrum. RESULTS The scapholunate interval was largest in the neutral position and linearly decreased by 34% for every 10° of pronation and decreased nonlinearly by 86% after the first 10° of supination. The appearance of the distal third metacarpal head was shown to be sensitive to both pronation and supination. The perimeter of the hook of the hamate and the distribution of the pisiform compared to the ulna were both shown to be sensitive to supination, whereas overlap of the pisiform and triquetrum was not shown to be sensitive to either direction of rotation. CONCLUSIONS Our results highlight the significant effect of rotation on radiographic landmarks at the wrist, indicating that 10° of supination can drastically alter the developed radiograph.
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Affiliation(s)
- Maxwell Campbell
- School of Mechanical and Materials Engineering, Western University, London, ON, Canada
- Roth|McFarlane Hand and Upper Limb Centre, St. Joseph's Health Care London, ON, Canada
| | - Glenn Schurmans
- Department of Diagnostic Imaging, St. Joseph's Health Care London, ON, Canada
| | - Nina Suh
- Department of Orthopaedics, School of Medicine, Emory University, Atlanta, GA, USA
| | - Gregory Garvin
- Department of Diagnostic Imaging, St. Joseph's Health Care London, ON, Canada
- Schulich School of Medicine & Dentistry, Western University, London, ON, Canada
| | - Emily Lalone
- School of Mechanical and Materials Engineering, Western University, London, ON, Canada
- Roth|McFarlane Hand and Upper Limb Centre, St. Joseph's Health Care London, ON, Canada
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Amarasooriya M, Jerome TJ, Tourret L. Current Concepts in Scapholunate Instability Without Arthritic Changes. Indian J Orthop 2023; 57:515-526. [PMID: 37006727 PMCID: PMC10050294 DOI: 10.1007/s43465-023-00839-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Accepted: 01/29/2023] [Indexed: 04/04/2023]
Abstract
Scapholunate instability (SLI) is the most common carpal instability described. SLI leads to a degenerative arthritic pattern known as scapholunate advanced collapse (SLAC). Diagnosis of SLI can be challenging in pre-dynamic and dynamic stages. CT arthrogram, MR arthrogram and dynamic fluoroscopy are helpful in diagnosis while arthroscopy remains the gold standard. SLI is a multi-ligament injury, which involves not only the scapholunate interosseous ligament (SLIL) but also the extrinsic carpal ligaments. Hence, it is better described as an injury compromising the 'dorsal scapholunate(dSLL) complex'. A repair can be attempted for acute SLI presenting within 6 weeks of injury. Reconstruction is the mainstay of treatment for chronic SLI without degenerative changes. Multiple repair techniques have been described which include capsulodesis and tenodesis procedures. The clinical outcomes of the techniques have improved over the years. However, a common problem of all these techniques is the lack of long-term data on the outcomes and deteriorating radiological parameters over time. SLI staging is an important factor to be considered in choosing the reconstruction techniques for a better outcome. Currently, there is a trend towards more biological and less invasive techniques. Regardless of the technique, it is important to preserve the nerve supply of the dorsal capsuloligamentous structures of the wrist. Arthroscopic techniques being minimally invasive have the advantage of less collateral damage to the capsuloligamentous structures. Rehabilitation involves a team approach where a protected dart thrower's motion is allowed after a period of immobilization. Strengthening SL-friendly muscles and inhibiting SL-unfriendly muscles is a key principle in rehabilitation.
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Affiliation(s)
- Melanie Amarasooriya
- Department of Orthopedic and Trauma Surgery, Flinders Medical Centre and Flinders University, Bedford Park, South Australia 5042 Australia
- Orthopedic Surgeon, Ministry of Health, Colombo, Sri Lanka
| | - Terrence Jose Jerome
- Hand and Reconstructive Microsurgery, Olympia Hospital and Research Centre , Trichy, India
| | - Lisa Tourret
- Hand and Upper Limb Surgeon, Brighton and Sussex University Hospitals, NHS Trust, Brighton, UK
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Zarenia M, Arpinar VE, Nencka AS, Muftuler LT, Koch KM. Dynamic tracking of scaphoid, lunate, and capitate carpal bones using four-dimensional MRI. PLoS One 2022; 17:e0269336. [PMID: 35653348 PMCID: PMC9162359 DOI: 10.1371/journal.pone.0269336] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Accepted: 05/18/2022] [Indexed: 11/18/2022] Open
Abstract
A preliminary exploration of technical methodology for dynamic analysis of scaphoid, capitate, and lunate during unconstrained movements is performed in this study. A heavily accelerated and fat-saturated 3D Cartesian MRI acquisition was used to capture temporal frames of the unconstrained moving wrist of 5 healthy subjects. A slab-to-volume point-cloud based registration was then utilized to register the moving volumes to a high-resolution image volume collected at a neutral resting position. Comprehensive in-silico error analyses for different acquisition parameter settings were performed to evaluate the performance limits of several dynamic metrics derived from the registration parameters. Computational analysis suggested that sufficient volume coverage for the dynamic acquisitions was reached when collecting 12 slice-encodes at 2.5mm resolution, which yielded a temporal resolution of and 2.6 seconds per volumetric frame. These acquisition parameters resulted in total in-silico errors of 1.9°±1.8° and 3°±4.6° in derived principal rotation angles within ulnar-radial deviation and flexion-extension motion, respectively. Rotation components of the carpal bones in the radius coordinate system were calculated and found to be consistent with earlier 4D-CT studies. Temporal metric profiles derived from ulnar-radial deviation motion demonstrated better performance than those derived from flexion/extension movements. Future work will continue to explore the use of these methods in deriving more complex dynamic metrics and their application to subjects with symptomatic carpal dysfunction.
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Affiliation(s)
- Mohammad Zarenia
- Department of Radiology, Medical College of Wisconsin, Milwaukee, WI, United States of America
- * E-mail:
| | - Volkan Emre Arpinar
- Department of Radiology, Medical College of Wisconsin, Milwaukee, WI, United States of America
| | - Andrew S. Nencka
- Department of Radiology, Medical College of Wisconsin, Milwaukee, WI, United States of America
| | - L. Tugan Muftuler
- Department of Radiology, Medical College of Wisconsin, Milwaukee, WI, United States of America
| | - Kevin M. Koch
- Department of Radiology, Medical College of Wisconsin, Milwaukee, WI, United States of America
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Rachunek K, Springer F, Barczak M, Kolbenschlag J, Daigeler A, Medved F. An algorithmic diagnostic approach to scapholunate ligament injuries based on comparison of X-ray examinations and arthroscopy in 414 patients. J Plast Reconstr Aesthet Surg 2022; 75:3293-3303. [PMID: 35725956 DOI: 10.1016/j.bjps.2022.04.083] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 01/15/2022] [Accepted: 04/12/2022] [Indexed: 12/21/2022]
Abstract
Conventional X-ray imaging is usually the first diagnostic assessment after clinical examination in case of suspected scapholunate interosseous ligament (SLIL) injury. Nevertheless, there is no consensus on the norms of the scapholunate distance (SLD) or carpal angles. Therefore, we aimed to determine the utility of static and dynamic radiographs in the diagnostic of an SLIL injury in comparison with the reference standard arthroscopy. We retrospectively analyzed the preoperative X-ray series and surgical records of arthroscopies of 414 patients. Radiological assessment included conventional static X-rays in the posteroanterior (PA) projection, clenched fist views in ulnar and radial deviations, in which the SLD at the midportion of the scapholunate (SL) joint was measured. The scapholunate angle (SLA) and radiolunate angle (RLA) were measured on lateral wrist radiographs. Receiver operating characteristic (ROC) curves were created to determine possible cut-off points of the radiological indices for the diagnosis of SLIL injury. Further, a logistic regression with the parameters having the highest area under the curve (AUC) was calculated. We found that SLD in ulnar inclination (AUC= 0.774), SLD in PA projection (AUC = 0.748), and SLA (AUC = 0.737) had the highest diagnostic value. The AUC of the combination of these three parameters was 0.822 for all patients with any SLIL lesion and 0.850 for patients with SLIL lesions of 3-4 Geissler grade. Further investigation of SLIL pathology would be appropriate in the case of SLD in ulnar inclination of 2.7 mm, SLD in PA projection of 1.9 mm and SLA of 63°.
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Affiliation(s)
- K Rachunek
- Department of Hand, Plastic, Reconstructive and Burn Surgery, BG Trauma Center, Eberhard Karls University Tuebingen, Schnarrenbergstr. 95, 72076 Tuebingen, Germany.
| | - F Springer
- Department of Diagnostic and Interventional Radiology, University Hospital, Eberhard Karls University Tuebingen, Hoppe-Seyler-Str. 3, 72076 Tuebingen, Germany
| | - M Barczak
- Department of Hand, Plastic, Reconstructive and Burn Surgery, BG Trauma Center, Eberhard Karls University Tuebingen, Schnarrenbergstr. 95, 72076 Tuebingen, Germany
| | - J Kolbenschlag
- Department of Hand, Plastic, Reconstructive and Burn Surgery, BG Trauma Center, Eberhard Karls University Tuebingen, Schnarrenbergstr. 95, 72076 Tuebingen, Germany
| | - A Daigeler
- Department of Hand, Plastic, Reconstructive and Burn Surgery, BG Trauma Center, Eberhard Karls University Tuebingen, Schnarrenbergstr. 95, 72076 Tuebingen, Germany
| | - F Medved
- Department of Hand, Plastic, Reconstructive and Burn Surgery, BG Trauma Center, Eberhard Karls University Tuebingen, Schnarrenbergstr. 95, 72076 Tuebingen, Germany
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Robinson S, Straatman L, Lee TY, Suh N, Lalone E. Evaluation of Four-Dimensional Computed Tomography as a Technique for Quantifying Carpal Motion. J Biomech Eng 2021; 143:1098186. [PMID: 33564841 DOI: 10.1115/1.4050129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Indexed: 11/08/2022]
Abstract
Delayed diagnosis of dynamic carpal instability often occurs because early changes in bone alignment and movement are difficult to detect and manifest mainly during a dynamic/functional task. Current diagnostic tools are only able to examine the carpal bones under static or sequential-static conditions. Four-dimensional (three dimensions + time) computed tomography (4DCT) enables quantification of carpal mechanics through 3D volume sequences of the wrist in motion. A comprehensive understanding of carpal mechanics is needed to define normal function and structure and provide targets for treatment of carpal injuries. In this study, measurements of scaphoid translation and joint congruency were taken by creating models from the CT scans of the carpals in extreme frames of motion, registering those models to the neutral position, transforming the models into a local coordinate system, and using software to calculate the joint surface areas (JSA). Results indicated that the centroid of the scaphoid translated 6.4 ± 1.3 mm and extended from extreme radial to extreme ulnar deviation. Results are consistent with the literature. An additional study was performed to measure the responsiveness of the 4DCT technique presented. Bone models from each frame of motion for radio ulnar deviation (RUD) and flexion extension (FE) were created and distinct differences between their JSA were measured qualitatively and quantitatively. The results show that there was statistically significantly different JSA within carpal joints between RUD and FE. These studies provide the first step in developing the methodology when using 4DCT scanning to measure subtle abnormalities in the wrist.
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Affiliation(s)
- Sydney Robinson
- School of Biomedical Engineering, Western University, 1151 Richmond St, London, ON N6A 3K7, Canada; Roth McFarlane Hand and Upper Limb Centre, St Joseph's Health Care London, 268 Grosvenor St, London, ON N6A 4V2, Canada
| | - Lauren Straatman
- Roth McFarlane Hand and Upper Limb Centre, St Joseph's Health Care London, 268 Grosvenor St, London, ON N6A 4V2, Canada; Graduate Program of Health and Rehabilitation Science, Western University, 1151 Richmond St, London, ON N6A 3K7, Canada
| | - Ting-Yim Lee
- Robarts Research Institute, 100 Perth Dr, London, ON N6A 5K8, Canada; Lawson Health Research Institute, 750 Base Line Rd E, London, ON N6C 2R5, Canada; Department of Medical Biophysics, Western University, 1151 Richmond St, London, ON N6A 3K7, Canada
| | - Nina Suh
- Roth McFarlane Hand and Upper Limb Centre, St Joseph's Health Care London, 268 Grosvenor St, London, ON N6A 4V2, Canada; Schulich School of Medicine and Dentistry,Western University, 1151 Richmond St, London, ON N6A 3K7, Canada
| | - Emily Lalone
- School of Biomedical Engineering, Western University, 1151 Richmond St, London, ON N6A 3K7, Canada; Roth McFarlane Hand and Upper Limb Centre, St Joseph's Health Care London, 268 Grosvenor St, London, ON N6A 4V2, Canada
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