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Nakamura T. Arthroscopic Portals. J Wrist Surg 2024; 13:97. [PMID: 38505208 PMCID: PMC10948237 DOI: 10.1055/s-0044-1782231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Affiliation(s)
- Toshiyasu Nakamura
- Department of Orthopaedic Surgery, School of Medicine, International University of Health and Welfare, Tokyo, Japan
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Munaretto N, Hinchcliff K, Dutton L, Kakar S. Is Wrist Arthroscopy Safer with the Nanoscope? J Wrist Surg 2022; 11:450-455. [PMID: 36339076 PMCID: PMC9633142 DOI: 10.1055/s-0042-1750179] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 04/28/2022] [Indexed: 10/17/2022]
Abstract
Background Nanoscope, given its smaller size, may be safer when establishing dorsal wrist arthroscopy portals compared with the traditional 2.7 mm arthroscope. Case Description Ten fresh frozen cadaver specimens were utilized. Dorsal radiocarpal portals were established with the Nanoscope and calipers were used to measure the distance between the portals and the surrounding anatomical structures. The only structure that was pierced during portal placement was the dorsal sensory branch of the ulnar nerve (DSUN) in one specimen when establishing the 6U portal. Our study did not note any tendon injuries. Literature Review Traditional wrist arthroscopy may be performed with a 2.7 mm arthroscope. With its larger outer sheath cannula, this may place adjacent anatomical structures at risk of injury. Clinical Relevance During wrist arthroscopy, the Nanoscope may be safer when creating portals to underlying structures. Level of Evidence This is a Level IV study.
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Affiliation(s)
| | | | - Lauren Dutton
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota
| | - Sanjeev Kakar
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota
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Oh C, Kakar S. NanoScope Arthroscopy: Lessons Learned in the First 75 Cases. J Wrist Surg 2022; 11:280-287. [PMID: 35971477 PMCID: PMC9375682 DOI: 10.1055/s-0042-1749089] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 04/11/2022] [Indexed: 10/15/2022]
Abstract
Background The field of arthroscopy has exponentially grown in the past decade, especially in the realm of upper extremity surgery. Description The use of smaller cameras and further advancements in arthroscopy technology have allowed innovative expansion in the application of arthroscopy in small joints. Clinical Relevance Included in the advancements is the NanoScope, a 1.9-mm flexible scope specifically designed for small joint visualization.
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Affiliation(s)
- Christine Oh
- Department of Orthopaedic Surgery, Mayo Clinic, Rochester, Minnesota
| | - Sanjeev Kakar
- Department of Orthopaedic Surgery, Mayo Clinic, Rochester, Minnesota
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De Santis S, Cozzolino R, Luchetti R, Cazzoletti L. Comparison between MRI and Arthroscopy of the Wrist for the Assessment of Posttraumatic Lesions of Intrinsic Ligaments and the Triangular Fibrocartilage Complex. J Wrist Surg 2022; 11:28-34. [PMID: 35127261 PMCID: PMC8807093 DOI: 10.1055/s-0041-1729757] [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] [Received: 11/29/2020] [Accepted: 03/29/2021] [Indexed: 10/21/2022]
Abstract
Background Magnetic resonance imaging (MRI) has been considered the most appropriate examination for wrist ligament injuries diagnosis, but it frequently fails to assess the intrinsic ligament lesion. Therefore, wrist arthroscopy is required to enhance and define the diagnosis. Purpose We compare the MRI imaging with wrist arthroscopy for intrinsic wrist ligaments (scapholunate [SL] and lunotriquetral [LT]) and triangular fibrocartilage complex (TFCC) injuries detection. Patients and Methods From 2007 to 2014, 532 patients affected by suspected SL, LT, and TFCC posttraumatic ligament injury have been investigated by 1.5-Tesla MRI and wrist arthroscopy. Inclusion and exclusion criteria were adopted. Only for SL ligament injury, the arthroscopic findings of complete (stage IV) and partial (stages I-III) SL ligament injury were compared with MRI findings. Statistical analysis, including sensitivity, specificity, positive and negative predictive values, positive and negative likelihood ratios, and the diagnostic odds ratio, was used to compare MRI with arthroscopic findings. Results A total of 146 patients were accepted in the study. In 68 cases of arthroscopic SL ligament lesion, MRI confirmed the diagnosis only in 50% of the cases. In partial SL lesions, MRI was positive in 24.3% and in complete SL lesions, MRI was positive in 80.6% of the cases. In 10 cases of arthroscopic LT ligament lesion, MRI was positive in 30.0% of the cases. In 33 patients with arthroscopic TFCC lesion, MRI was positive in 66.7% of the cases. Conclusion 1.5-T MRI demonstrated to fail in confirming the lesion of SL, LP, and TFCC ligaments respectively in 50, 70, and 33.3% of the cases positive at arthroscopy. In complete SL ligament lesion, MRI reaches a higher sensitivity than in partial lesion. Arthroscopy remains the best method to demonstrate the ligament lesion and obtain more information regarding the extent and quality of the ligament damage. Level of Evidence This is a Level II, retrospective comparative study.
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Affiliation(s)
| | | | | | - Lucia Cazzoletti
- Department of Diagnostics and Public Health, Section of Epidemiology and Medical Statistics, University of Verona, Verona, Italy
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Abstract
The use of wrist arthroscopy has evolved to being a powerful tool to not only diagnose but also treat wrist disorders. With the improvement in technology and surgical technique, many of the procedures can be done using dry wrist arthroscopy (DWA). DWA can be used to treat a wide spectrum of ulnar wrist disorders. In this article, we aim to highlight some technical pearls as well as show its use to treat common ulnar wrist pain disorders.
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Affiliation(s)
- Marion Burnier
- Hand and Upper Extremity Surgical Institute, Clinique du Medipole-Lyon, Villeurbanne, France
| | - Sanjeev Kakar
- Department of Orthopaedic Surgery, Mayo Clinic, Rochester, MN, USA; Department of Clinical Anatomy, Mayo Clinic, Rochester, MN, USA.
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Kasapinova K, Kamiloski V. Outcomes of surgically treated distal radius fractures associated with triangular fibrocartilage complex injury. J Hand Ther 2021; 33:339-345. [PMID: 32151501 DOI: 10.1016/j.jht.2017.09.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2017] [Revised: 08/31/2017] [Accepted: 09/06/2017] [Indexed: 02/03/2023]
Abstract
STUDY DESIGN Prospective cohort. INTRODUCTION Clinical studies that evaluate the correlation between associated lesions of the triangular fibrocartilage complex (TFCC) and outcome of distal radius fractures expressed with the patient-rated disability are missing. The purpose of this study was to evaluate the outcomes of distal radius fractures associated with or without an injury of the TFCC. METHODS Patients undergoing operative treatment for distal radius fracture were prospectively enrolled (n = 70). TFCC was examined by wrist arthroscopy and injuries classified according to Palmer. Comparative analyses were performed on 45 patients with TFCC injury (injured group) and 25 patients with intact TFCC (intact group). The outcome measures included the Patient-Rated Wrist Evaluation (PRWE) and the Disabilities of the Arm, Shoulder and Hand (DASH) questionnaires, 3 and 12 months after injury. RESULTS TFCC was injured in 45 patients (64%). In patients with intact TFCC, mean total PRWE score was 27 (3 months) and 16 (12 months), compared to patients with TFCC injury with 40 (at 3 months) and 24 (at 12 months). Mean DASH scores were 26 and 13 at 3 and 12 months for the intact group and 39 and 27 for the injured group. PRWE and DASH results showed significant difference at 3 and 12 months when compared with Mann-Whitney test. DISCUSSION PRWE and DASH scores evaluation showed that patients with associated TFCC injury had greater pain and disability at 3 and 12 months after injury. CONCLUSIONS Disability outcomes were worse in patients with distal radius fracture, where TFCC was injured. TFCC injuries are an important cofactor affecting the outcome of distal radius fractures.
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Affiliation(s)
- Katerina Kasapinova
- Medical Faculty, University "St.Cyril and Metodius", Department of Traumatology, University Surgery Clinic "St.Naum Ohridski", Skopje, Republic of Macedonia.
| | - Viktor Kamiloski
- Medical Faculty, University "St.Cyril and Metodius", Department of Traumatology, University Surgery Clinic "St.Naum Ohridski", Skopje, Republic of Macedonia
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Outcomes of surgically treated distal radial fractures with associated triangular fibrocartilage complex injury. J Hand Ther 2020; 32:57-63. [PMID: 29054543 DOI: 10.1016/j.jht.2017.09.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2017] [Revised: 08/31/2017] [Accepted: 09/07/2017] [Indexed: 02/03/2023]
Abstract
STUDY DESIGN Prospective cohort. INTRODUCTION Clinical studies that evaluate the correlation between associated lesions of the triangular fibrocartilage complex (TFCC) and outcome of distal radial fractures expressed with the patient-rated disability are missing. PURPOSE OF THE STUDY To evaluate the outcomes of distal radius fractures associated with or without an injury of the TFCC. METHODS Patients undergoing operative treatment for distal radial fracture were prospectively enrolled (n = 70). The TFCC was examined by wrist arthroscopy, and injuries were classified according to Palmer. Comparative analyses were performed on data from 45 patients with TFCC injury (the injured group) and 25 patients with an intact TFCC (the intact group). The outcome measures included The Patient-Rated Wrist Evaluation (PRWE) and the Disabilities of the Arm, Shoulder and Hand (DASH) questionnaires, 3 and 12 months after injury. RESULTS The TFCC was injured in 45 patients (64%). In patients with an intact TFCC, the mean total PRWE score was 27 (at 3 months) and 16 (at 12 months), whereas in patients with TFCC injury, it was 40 (at 3 months) and 24 (at 12 months). Mean DASH scores were 26 and 13 for the intact group and 39 and 27 for the injured group at 3 and 12 months, respectively. PRWE and DASH results showed significant difference at 3 and 12 months when compared using the Mann-Whitney test. CONCLUSIONS Disability outcomes were worse in patients with distal radial fracture where TFCC was injured. TFCC injuries are an important cofactor affecting the outcome of distal radial fractures.
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Pillukat T, Mühldorfer-Fodor M, Windolf J, van Schoonhoven J. [Arthroscopy of the distal radioulnar joint]. DER ORTHOPADE 2019; 47:647-654. [PMID: 29797018 DOI: 10.1007/s00132-018-3582-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE The aim of the procedure is to visualize the proximal pouch of the DRUJ, the joint surfaces of the sigmoid notch and the ulnar head, the convexity of the ulnar head and the proximal ulnar side surface of the triangular fibrocartilage complex (TFCC). INDICATIONS Arthroscopy of the distal radioulnar joint is applied for the evaluation of joint pathologies in ulnar-sided wrist pain, especially in cases without diagnostic findings in standard X‑rays and MRIs and arthroscopically assisted procedures. SURGICAL TECHNIQUE In vertical extension, two portals of the wrist are created on the dorsal side of the DRUJ between the extensor digiti minimi and extensor carpi ulnaris tendons. By insertion of a small joint arthroscope via these portals visualization of the ulnar head, the sigmoid notch, the proximal pouch of the DRUJ and the proximal surface of the TFCC is accomplished. CONCLUSIONS Arthroscopy of the DRUJ is a rarely and not routinely performed procedure for the diagnosis and therapy of ulnar-sided wrist pain. It is technical demanding with a flat learning curve and anatomy-related obstacles. A complete view of the joint is not always accessible. Rare complications are injuries of the extensor digiti minimi tendon, as well as contusion or sectioning of the transverse branch of the dorsal branch of the ulnar nerve. In distinct cases, this procedure offers important additional information about the distal radioulnar joint. The procedure is especially valuable for the detection of proximal TFCC injuries that are missed otherwise.
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Affiliation(s)
- T Pillukat
- Klinik für Handchirurgie, Salzburger Leite 1, 97616, Bad Neustadt an der Saale, Deutschland.
| | - M Mühldorfer-Fodor
- Klinik für Handchirurgie, Salzburger Leite 1, 97616, Bad Neustadt an der Saale, Deutschland
| | - J Windolf
- Klinik für Unfall- und Handchirurgie, Universitätsklinikum Düsseldorf, Düsseldorf, Deutschland
| | - J van Schoonhoven
- Klinik für Handchirurgie, Salzburger Leite 1, 97616, Bad Neustadt an der Saale, Deutschland
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Iwamae M, Yano K, Kaneshiro Y, Sakanaka H. Arthroscopic reduction of an irreducible distal radioulnar joint in Galeazzi fracture-dislocation due to a fragment of the ulnar styloid: a case report. BMC Musculoskelet Disord 2019; 20:354. [PMID: 31366350 PMCID: PMC6668188 DOI: 10.1186/s12891-019-2735-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 07/22/2019] [Indexed: 11/12/2022] Open
Abstract
Background There are only a few published case reports of irreducible Galeazzi fracture-dislocation, and patients in these studies had undergone reduction by open surgical methods. Arthroscopy for the distal radioulnar joint of the wrist joint has recently been used for wrist pathology. We aim to describe the surgical procedure involved in arthroscopic reduction of irreducible Galeazzi fracture-dislocation and clinical outcome and review the literature. Case presentation We present the case of a 26-year-old man, a professional athlete, who sustained Galeazzi fracture-dislocation during a bicycle race. The distal radioulnar joint was irreducible because the fragment of the ulnar styloid was trapped between the sigmoid notch and ulnar head after a doctor had previously reduced it manually. Operative treatment was performed using a 30° oblique, 1.9-mm arthroscope. Reduction of the fragment of the ulnar styloid was achieved using distal radioulnar joint arthroscopy. The metaphyseal and intra-articular fracture of the radius and the fragment of the ulnar styloid were fixed using a volar locking plate and tension band wiring technique, respectively. A daily injection of parathyroid hormone and low-intensity pulsed ultrasound were used postoperatively. The patient was asymptomatic and returned to the preinjury level of athletic activity 2 months postoperatively, and bone union of the radius and ulna was achieved without distal radioulnar joint instability 15 months postoperatively. Conclusions Less invasive reduction of the dorsal anatomical structure enabled our patient to return early to sports. We consider arthroscopic reduction to be superior to the open surgical method in terms of evaluating interpositions; additionally, arthroscopic reduction is minimally invasive and does not need immobilization because it does not cause significant damage to the dorsal capsule and subsheath of the extensor carpi ulnaris, which comprise the triangular fibrocartilage complex.
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Affiliation(s)
- Masayoshi Iwamae
- Department of Orthopaedic Surgery, Seikeikai Hospital, 1-1-1 Minamiyasuicho, Sakai-ku, Sakai City, Osaka, 590-0064, Japan
| | - Koichi Yano
- Department of Orthopaedic Surgery, Seikeikai Hospital, 1-1-1 Minamiyasuicho, Sakai-ku, Sakai City, Osaka, 590-0064, Japan.
| | - Yasunori Kaneshiro
- Department of Orthopaedic Surgery, Seikeikai Hospital, 1-1-1 Minamiyasuicho, Sakai-ku, Sakai City, Osaka, 590-0064, Japan
| | - Hideki Sakanaka
- Department of Orthopaedic Surgery, Seikeikai Hospital, 1-1-1 Minamiyasuicho, Sakai-ku, Sakai City, Osaka, 590-0064, Japan
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Yano K, Kaneshiro Y, Sakanaka H. Arthroscopic resection of an osteochondral loose body in the distal radioulnar joint: A case report. ACTA ORTHOPAEDICA ET TRAUMATOLOGICA TURCICA 2018; 52:404-407. [PMID: 29802031 PMCID: PMC6204445 DOI: 10.1016/j.aott.2018.05.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Revised: 04/13/2018] [Accepted: 05/07/2018] [Indexed: 11/26/2022]
Abstract
We report a 34-year-old man who presented with ulnar wrist pain, painful click, and locking during forearm rotation following a motorcycle accident. Plain radiographs showed a loose body in the distal radioulnar joint (DRUJ), deformity of the sigmoid notch and ulnar head, and ulnar minus variant. The DRUJ deformity was assumed to be associated with physeal injury of the distal ulna during childhood. Conservative treatment with a splint and oral analgesics for 3 months failed. During DRUJ arthroscopy, osteoarthritic changes were found, and the loose body was resected using DRUJ arthroscopy. Histological examination showed an osteochondral loose body. The patient remained asymptomatic without recurrence or DRUJ instability 2 years postoperatively.
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11
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MRI and Arthroscopic Correlation of the Wrist. Sports Med Arthrosc Rev 2017; 25:e18-e30. [PMID: 29095398 DOI: 10.1097/jsa.0000000000000172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Since its introduction in 1979, the practice of and indications for wrist arthroscopy in the diagnosis and treatment of pathologic conditions in the wrist continues to grow. Magnetic resonance imaging (MRI) is another commonly used tool to noninvasively examine the anatomy and pathology of the wrist joint. Here, we review the normal wrist anatomy as seen arthroscopically and through MRI. We then examine the various common pathologic entities and define both the arthroscopic findings and correlated MRI findings in each of these states.
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Abstract
Both ulnocarpal impaction syndrome and ulnar styloid impaction syndrome can produce ulnar wrist pain. The definition and clinical differentiation are explained. The relevant anatomy, biomechanics, causes, diagnosis, and arthroscopic treatments, as well as the surgical indications, techniques, and outcomes of these syndromes are discussed in detail.
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Affiliation(s)
- David J Slutsky
- Department of Orthopedics, Harbor UCLA Medical Center, Torrance, CA 90503, USA; The Hand and Wrist Institute, 2808 Columbia Street, Torrance, CA 90503, USA.
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13
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Abstract
After reviewing this article, readers should have a comprehensive understanding of the indications for diagnostic arthroscopy, technical considerations in performing a systematic evaluation of the wrist, and limitations of this technique.
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Affiliation(s)
- Brett F. Michelotti
- Department of Surgery, Division of Plastic Surgery, University of Wisconsin Hospital and Clinics, Madison, Wisconsin
| | - Kevin C. Chung
- Section of Plastic Surgery, Assistant Dean for Faculty Affairs, University of Michigan Medical School
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Kirchberger MC, Unglaub F, Mühldorfer-Fodor M, Pillukat T, Hahn P, Müller LP, Spies CK. Update TFCC: histology and pathology, classification, examination and diagnostics. Arch Orthop Trauma Surg 2015; 135:427-37. [PMID: 25575720 DOI: 10.1007/s00402-015-2153-6] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Indexed: 02/09/2023]
Abstract
The TFCC is a crucial stabilizer of the DRUJ. Based on its superficial and deep fibers, the TFCC guarantees unrestricted pronation and supination which is essential for performing sophisticated tasks. The ability to perform complex movements is of uppermost importance for hand function. Therefore, a functional intact TFCC is a prerequisite in this context. The articular disc of the TFCC is a fibrocartilaginous extension of the superficial zone of hyaline articular cartilage which arises from the radius. The peripheral 10-40 % of the TFC is vascularized. Degeneration of the articular disc is common with increasing age. Even though the central part of the articular disc is avascular, potential regeneration of lesions could be detected. The Palmer and Atzei classifications of TFCC lesions are complementary. TFCC innervation is based on different nerves. There is a high variability. A diligent clinical examination facilitates specific tests which help to allocate symptoms to the pathology. Therefore, a thorough clinical examination is not dispensable. Wrist arthroscopy remains the "gold standard" for diagnosing TFCC pathologies despite technical progress in imaging modalities. MR arthrography may have the potential to become a real alternative to wrist arthroscopy for diagnosing TFCC pathologies with technical progress in the future.
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Affiliation(s)
- Michael C Kirchberger
- Department of Hand Surgery, Vulpius Klinik, Vulpiusstraße 29, 74906, Bad Rappenau, Germany
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Abstract
Background Foveal disruption of the triangular fibrocartilage complex (TFCC) is associated with distal radioulnar joint (DRUJ) instability. TFCC fixation onto the fovea is the suitable treatment, which is not achieved by conventional arthroscopic techniques. We describe an all-inside arthroscopic technique that uses a suture anchor through distal DRUJ arthroscopy for foveal repair of the TFCC. Materials and Methods Forty-eight patients with TFCC foveal tear and DRUJ instability were selected according to the Atzei-European Wrist Arthroscopy Society (EWAS) algorithm of treatment. Retrospective evaluation included pain, DRUJ instability, range of motion (ROM), grip strength, Modified Mayo Wrist Score (MMWS), and the Disabilities of the Arm, Shoulder, and Hand (DASH) Score. Description of Technique DRUJ arthroscopy was performed to débride the TFCC and the foveal area. Under arthroscopic guidance, a suture anchor was inserted via the distal foveal portal to repair the TFCC onto the fovea. Sutures were tied on the radiocarpal surface of the TFCC. Postoperative immobilization of forearm rotation was maintained for 4 weeks. Heavy tasks were allowed after 3 months. Results After a mean follow-up of 33 months, pain improved significantly but remained moderate in four patients, severe in one. DRUJ instability resolved in 44 patients. Wrist ROM increased. Grip strength, MMWS, and DASH score improved significantly. Excellent and good MMWS equaled 83.3%. Forty-one patients (85.5%) resumed previous work and sport activities. As a postoperative complication, five patients experienced neuroapraxia of the dorsal sensory branch of the ulnar nerve (DSBUN) with full spontaneous recovery. Conclusions With appropriate indications and patient selection, arthroscopic foveal repair of the TFCC may restore DRUJ stability and provide satisfactory results without significant complications.
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Affiliation(s)
- Andrea Atzei
- Fenice Hand Surgery and Rehabilitation Team, Treviso, Pordenone, Italy
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Pidgeon TS, Waryasz G, Carnevale J, DaSilva MF. Triangular Fibrocartilage Complex: An Anatomic Review. JBJS Rev 2015; 3:01874474-201501000-00001. [PMID: 27501024 DOI: 10.2106/jbjs.rvw.n.00053] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Tyler S Pidgeon
- University Orthopedics, 2 Dudley Street, Suite 200, Providence, RI 02905
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Die Arthroskopie des distalen Radioulnargelenks. OPERATIVE ORTHOPADIE UND TRAUMATOLOGIE 2014; 26:547-55. [DOI: 10.1007/s00064-014-0312-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2014] [Revised: 08/28/2014] [Accepted: 08/29/2014] [Indexed: 10/24/2022]
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Pirolo JM, Yao J. Current surgical treatment options for triangular fibrocartilage complex tears. CURRENT ORTHOPAEDIC PRACTICE 2014. [DOI: 10.1097/bco.0000000000000148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Yin HW, Qiu YQ, Shen YD, Xu JG, Gu YD, Xu WD. Arthroscopic distal metaphyseal ulnar shortening osteotomy for ulnar impaction syndrome: a different technique. J Hand Surg Am 2013; 38:2257-62. [PMID: 24206993 DOI: 10.1016/j.jhsa.2013.08.108] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Revised: 07/11/2013] [Accepted: 08/21/2013] [Indexed: 02/02/2023]
Abstract
Ulnar impaction syndrome generally occurs with positive ulnar variance. The solution to the problem is to unload the ulnocarpal joint. Effective surgical options include diaphyseal ulnar shortening osteotomy, open wafer osteotomy, and arthroscopic wafer osteotomy. Recently, Slade and Gillon described an open procedure of ulnar shortening in the osteochondral region of the ulnar head. The procedure minimizes the risk of hemarthrosis and does not require hardware removal, which are problems with other surgical options. This article introduces a new arthroscopic technique of distal metaphyseal ulnar shortening osteotomy for ulnar impaction syndrome. This technique offers the advantages of minimizing surgical injury to the dorsal capsule of the distal radoulnar joint and so protects its stability.
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Affiliation(s)
- Hua-Wei Yin
- Department of Hand Surgery of Huashan Hospital, Shanghai Medical College of Fudan University, Shanghai, People's Republic of China; Department of Hand and Upper Extremity Surgery of Jingan District Center Hospital, Shanghai, People's Republic of China; State Key Laboratory of Medical Neurobiology, Fudan University, Shanghai, People's Republic of China
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Abstract
INTRODUCTION Twenty-five patients (19 males and six females) were included in the study based on: chronic symptoms of distal radioulnar joint instability, demonstrable instability on examination, MRI evidence of radioulnar ligament deficiency, and arthroscopic findings of foveal disruption of the radioulnar ligament. MATERIALS AND METHODS Exclusion criteria were: distal radius malunion, congenital malformation of the sigmoid notch, DRUJ arthritis, and less than 24 months minimum follow-up. Mean age was 35 years old with a mean interval from injury to surgery of 5 months. Surgery began with arthroscopic confirmation of the chronic foveal detachment followed by open reconstruction of the radioulnar ligament using the palmaris longus tendon. The specific method employed three drill tunnels corresponding to the true anatomic points of attachment of the radioulnar ligament. Patients were examined post-operatively at 2 weeks, 4 weeks, 6 weeks, 12 weeks, and 6 months. RESULTS AND DISCUSSION Final evaluation averaged 51 (±14) months following surgery. Measures obtained before and after treatment included: wrist range of motion, forearm range of motion, grip strength, examination findings of distal radioulnar joint instability, and Disabilities of Arm, Shoulder, and Hand (DASH) scores. Pre-operative and post-operative measures were compared using the paired Student's t test, accepting a p value of 0.05 as statistically significant. All patients healed the reconstruction without major complications and demonstrated distal radioulnar joint stability at the 6-week examination. Mean ranges of motion, in degrees, pre-/post-operative were: wrist flexion 53 (±13)/61 (±10), wrist extension 53 (±13)/62 (±15), supination 65 (±12)/74 (±7), and pronation 66 (±11)/71 (±8). Grip strengths expressed as % contralateral pre-/post-operative were: 57 (±23)/79 (±25). The differences in these measures were not found to be statistically significant. The mean pre-/post-operative DASH scores were: 62 (±16)/7 (±3). This difference was found to be statistically significant. CONCLUSION Reconstruction of the RUL with a free palmaris longus tendon graft using the truly anatomic points of original RUL attachment at both the ulna and radius restored DRUJ stability and improved DASH scores without limiting forearm or wrist motion.
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Affiliation(s)
- Mark Henry
- Hand and Wrist Center of Houston, 1200 Binz Street, 13th Floor, Houston, TX 77004 USA
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Current innovations in wrist arthroscopy. J Hand Surg Am 2012; 37:1932-41. [PMID: 22916867 DOI: 10.1016/j.jhsa.2012.06.028] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2011] [Revised: 06/25/2012] [Accepted: 06/25/2012] [Indexed: 02/02/2023]
Abstract
It has become clear that the stability of the scapholunate joint does not depend wholly on the scapholunate interosseous ligament, but rather on both primary and secondary stabilizers, which form a scapholunate ligament complex. Each case of scapholunate instability is unique and should be treated with tissue-specific repairs, which may partly explain why one procedure cannot successfully restore joint stability in every case. Wrist arthroscopy has a pivotal role in both the assessment and treatment of the scapholunate ligament complex derangements. Tears of the foveal attachment of the triangular fibrocartilaginous complex can be an underdiagnosed cause of distal radioulnar joint instability, because the foveal fibers cannot be visualized using the standard radiocarpal arthroscopy portals. Distal radioulnar joint arthroscopy allows for direct visualization and assessment of these fibers, which in turn has spawned a number of open and arthroscopic repair methods. Wrist arthroscopy has gained wider acceptance as a method to fine-tune articular reduction during open and percutaneous fixation of distal radius fractures, and simplifies intra-articular osteotomies for malunion. It can facilitate percutaneous bone grafting of scaphoid nonunions and has a role in the diagnosis and treatment of associated soft tissue lesions. These and other recent developments will be discussed in the following article.
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Sachar K. Ulnar-sided wrist pain: evaluation and treatment of triangular fibrocartilage complex tears, ulnocarpal impaction syndrome, and lunotriquetral ligament tears. J Hand Surg Am 2012; 37:1489-500. [PMID: 22721461 DOI: 10.1016/j.jhsa.2012.04.036] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2012] [Accepted: 04/27/2012] [Indexed: 02/02/2023]
Abstract
Ulnar-sided wrist pain is a common cause of upper extremity disability. Presentation can vary from acute traumatic injuries to chronic degenerative conditions. Because of its overlapping anatomy, complex differential diagnosis, and varied treatment outcomes, the ulnar side of the wrist has been referred to as the "black box" of the wrist, and its pathology has been compared with low back pain. Common causes of ulnar-sided wrist pain include triangular fibrocartilaginous complex injuries, lunotriquetrial ligament injuries, and ulnar impaction syndrome.
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Affiliation(s)
- Kavi Sachar
- Hand Surgery Associates, Denver, CO 80210, USA.
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Smith TO, Drew B, Toms AP, Jerosch-Herold C, Chojnowski AJ. Diagnostic accuracy of magnetic resonance imaging and magnetic resonance arthrography for triangular fibrocartilaginous complex injury: a systematic review and meta-analysis. J Bone Joint Surg Am 2012; 94:824-32. [PMID: 22552672 DOI: 10.2106/jbjs.j.01775] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Triangular fibrocartilaginous complex (TFCC) tears are common sources of ulnar-sided wrist pain and resultant functional disability. Diagnosis is based on the history and clinical examination as well as radiographic evidence of a TFCC central perforation or a radial/ulnar tear. The purpose of this study was therefore to evaluate the diagnostic accuracy of magnetic resonance imaging (MRI) and magnetic resonance arthrography (MRA) in the detection of TFCC injury in the adult population. METHODS Published and unpublished literature databases were searched. Two-by-two tables were constructed to calculate the sensitivity and specificity of MRI or MRA investigations against arthroscopic outcomes. Pooled sensitivity and specificity values and summary receiver operating characteristic curve evaluations were performed. The methodological quality of each study was assessed with use of the QUADAS (Quality Assessment of Diagnostic Accuracy Studies) tool. RESULTS Twenty-one studies were included in the review, and these series included a total of 982 wrists. On meta-analysis, MRA was superior to MRI in the investigation of full-thickness TFCC tears, with a pooled sensitivity of 0.75 and a pooled specificity of 0.81 for MRI compared with 0.84 and 0.95, respectively, for MRA. MRA and MRI performed at greater field strengths were reported to have greater sensitivity and specificity than those performed at lower field strengths. There were insufficient data to assess the diagnostic test accuracy for partial-thickness TFCC tears. CONCLUSIONS Given its acceptable diagnostic test accuracy, it is recommended that MRA, rather than MRI, be performed in when there are questions about the diagnosis and subsequent management of patients with ulnar-sided wrist pain.
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Affiliation(s)
- Toby O Smith
- Faculty of Health, University of East Anglia, Norwich, United Kingdom.
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25
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Yamamoto M, Koh S, Tatebe M, Shinohara T, Shionoya K, Nakamura R, Hirata H. ARTHROSCOPIC VISUALISATION OF THE DISTAL RADIOULNAR JOINT. ACTA ACUST UNITED AC 2011; 13:133-8. [DOI: 10.1142/s0218810408003979] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2007] [Accepted: 10/10/2008] [Indexed: 11/18/2022]
Abstract
The diagnosis of chronic wrist pain is challenging and wrist arthroscopy has been recognised as the "gold standard". The present study investigated the efficacy of adding distal radioulnar joint (DRUJ) arthroscopy to routine wrist arthroscopy. The records of 67 patients who underwent DRUJ arthroscopy were reviewed, and the success rates for visualisation of intra-articular structures were determined. Pathological findings were correlated with ulnar-side wrist pain. In seven patients, pre-operative diagnoses were altered after DRUJ arthroscopy. The ulnar head and proximal surface of the triangular fibrocartilage complex (TFCC) were visualised in 100% and 99% of patients, respectively, while the foveal insertion of TFCC and sigmoid notch were visualised in 57% and 69%, respectively. Pathological findings of the proximal surface of TFCC tended to relate to ulnar wrist pain (p = 0.06). DRUJ arthroscopy should be included in routine wrist arthroscopy to enhance the accuracy of diagnosis.
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Affiliation(s)
- Michiro Yamamoto
- Department of Hand Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | | | - Masahiro Tatebe
- Department of Hand Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takaaki Shinohara
- Department of Hand Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | | | - Ryogo Nakamura
- Nagoya Hand Surgery Center, Chunichi Hospital, Nagoya, Japan
| | - Hitoshi Hirata
- Department of Hand Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Smith J, Rizzo M, Sayeed YA, Finnoff JT. Sonographically guided distal radioulnar joint injection: technique and validation in a cadaveric model. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2011; 30:1587-1592. [PMID: 22039032 DOI: 10.7863/jum.2011.30.11.1587] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Distal radioulnar joint (DRUJ) disorders are uncommon but important causes of ulnar-sided wrist pain and disability. Fluoroscopically guided injections may be performed to diagnose or treat DRUJ-related pain or as part of a diagnostic arthrogram. Sonographic guidance may provide a favorable alternative to fluoroscopic guidance for distal DRUJ injections. This report describes and validates a sonographically guided technique for DRUJ injections in an unembalmed cadaveric model. An experienced clinician used sonographic guidance to inject diluted colored latex into the DRUJs of 10 unembalmed cadaveric specimens. Subsequent dissection by a fellowship-trained hand surgeon confirmed accurate injections in all 10 specimens. Two cases of ulnocarpal flow, indicative of triangular fibrocartilage injury, were noted during injection and subsequently confirmed during dissection. Clinicians should consider using sonographic guidance to perform DRUJ injections when clinically indicated. Further research should explore the efficacy of sonographically guided DRUJ injections to treat patients with painful DRUJ syndromes or to evaluate the triangular fibrocartilage complex in patients with ulnar wrist pain syndromes.
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Affiliation(s)
- Jay Smith
- Departments of Physical Medicine and Rehabilitation and Radiology, W14, Mayo Clinic College of Medicine, Rochester, MN 55905 USA.
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Abstract
Anatomical and biomechanical studies have highlighted the importance of the deep attachment of the TFCC for maintaining stability of the distal radioulnar joint (DRUJ). The standard arthroscopic assessment of the TFCC does not allow one to definitively determine whether the deep fibers are indeed intact, and establishing the diagnosis of a foveal detachment remains an exacting challenge. DRUJ arthroscopy is useful to assess the foveal fibers in any patient with DRUJ instability and can aid in the surgical decision making.
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Affiliation(s)
- David J Slutsky
- Los Angeles County Harbor-UCLA Medical Center, 1000 W Carson Street, Torrance, CA 90502, USA.
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Yamamoto M, Koh S, Tatebe M, Shinohara T, Shionoya K, Hirata H, Nakamura R. Importance of distal radioulnar joint arthroscopy for evaluating the triangular fibrocartilage complex. J Orthop Sci 2010; 15:210-5. [PMID: 20358334 DOI: 10.1007/s00776-009-1445-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2009] [Accepted: 12/07/2009] [Indexed: 02/09/2023]
Abstract
BACKGROUND The present study evaluated the importance of visualizing both sides of the triangular fibrocartilage complex (TFCC) when diagnosing ulnar wrist pain. METHODS A total of 20 patients with ulnar wrist pain who underwent both radiocarpal joint (RCJ) and distal radioulnar joint (DRUJ) arthroscopy were studied retrospectively. TFCC was graded as normal or as having wear or tear. The definitive diagnosis was made by evaluating the TFCC from both joints. The medical records were reviewed to document the preoperative diagnosis, arthroscopic findings, postoperative diagnosis, and operative procedure(s) performed after the arthroscopic examinations. The patients' status at final follow-up was evaluated using the modified Green and O'Brien wrist scoring system. The TFCC grading on RCJ and DRUJ arthroscopies was compared. RESULTS The final diagnosis was modified after arthroscopic examination in three cases (15%). In six patients (30%), DRUJ arthroscopy revealed pathological TFCC findings that could not be detected on RCJ arthroscopy. The DRUJ arthroscopy detected wear or degenerative changes seen only on the proximal aspect of the TFCC in four patients and tear in two patients. On the other hand, in only one patient (5%) were there no pathological findings observed from the DRUJ portal, although RCJ arthroscopy found wear. In eight patients (45%), the arthroscopic grading of TFCC was the same on RCJ and DRUJ arthroscopy; of these, the TFCC was graded as normal in one patient, showing wear in three patients, and with a tear in five patients. For diagnosing TFCC pathology, RCJ arthroscopy had a sensitivity of 68% and a negative predictive value (NPV) of 14%, whereas the sensitivity was 95% and the NPV was 50% for DRUJ. CONCLUSIONS Adding DRUJ arthroscopy to RCJ arthroscopy enables more accurate diagnosis of TFCC pathology because the proximal aspect of the articular disk and the foveal insertion of the distal radioulnar ligament can be visualized.
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Affiliation(s)
- Michiro Yamamoto
- Department of Hand Surgery, Nagoya University Graduate School of Medicine, 65 Tsuruma-cho, Showa-ku, Nagoya, 466-8550, Japan
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Abstract
Advances in radiocarpal and distal radioulnar joint (DRUJ) diagnostic arthroscopy permits a treatment-oriented classification of triangular fibrocartilage complex (TFCC) peripheral tears: 1) repairable distal tears; 2) repairable complete tears; 3) repairable proximal tears; 4) non-repairable tears; and 5) tears associated with DRUJ arthritis. Class 1 tears should be sutured; Class 2 and 3 are associated with DRUJ instability and require TFCC reattachment to the fovea; Class 4 tears need reconstruction using a tendon graft and Class 5 tears require an arthroplasty. Arthroscopic assisted TFCC foveal reattachment is possible through the direct foveal portal, a dedicated DRUJ working portal. Arthroscopic TFCC reconstruction using a tendon graft showed promising results.
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Affiliation(s)
- A Atzei
- Hand Surgery Unit, Policlinico G. B. Rossi, Verona, Italy.
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Atzei A, Rizzo A, Luchetti R, Fairplay T. Arthroscopic foveal repair of triangular fibrocartilage complex peripheral lesion with distal radioulnar joint instability. Tech Hand Up Extrem Surg 2008; 12:226-235. [PMID: 19060683 DOI: 10.1097/bth.0b013e3181901b1] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
There is still controversy regarding the value of arthroscopic suture of triangular fibrocartilage complex (TFCC) peripheral tears compared with open transosseous repair because only the latter method restores foveal insertions of TFCC in case of distal radioulnar joint (DRUJ) instability. Five classes of TFCC peripheral tears are recognized in a treatment-oriented algorithm based on arthroscopic findings, and indications to proper treatment are set accordingly. Complete repairable tears (class 2) and proximal repairable tears (class 3) are associated with DRUJ instability and require foveal reattachment of the TFCC. We describe a new arthroscopic technique to repair the foveal attachment of the TFCC with the use of a suture anchor, which is indicated for class 2 and 3 TFCC peripheral tears, instead of an open repair. This technique requires a dedicated working portal to approach the fovea ulnaris. This Direct Foveal portal is used to prepare the ligament and bone and to drill and insert a suture anchor loaded with a pair of sutures. Under arthroscopic vision, a suture is passed through each limb of the ligament and tied using a small knot-pusher. This arthroscopic technique restores original TFCC anatomy and adequate DRUJ stability with less morbidity and potentially accelerated rehabilitation compared with open repair.
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Affiliation(s)
- Andrea Atzei
- Hand Surgery Unit, Policlinico G.B. Rossi, Verona, Italy.
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Slutsky DJ, Nagle DJ. Wrist arthroscopy: current concepts. J Hand Surg Am 2008; 33:1228-44. [PMID: 18762125 DOI: 10.1016/j.jhsa.2008.07.015] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2008] [Revised: 07/22/2008] [Accepted: 07/22/2008] [Indexed: 02/02/2023]
Abstract
Wrist arthroscopy has steadily grown from a mostly diagnostic tool to a valuable adjunctive procedure in the treatment of myriad wrist disorders. The number of conditions that are amenable to arthroscopic treatment continues to grow. A detailed knowledge of the topographical and intracarpal anatomy, however, is essential to minimize complications and maximize the benefits. Although wrist arthroscopy can identify an anatomic abnormality, it cannot be used to differentiate between an asymptomatic degenerative condition versus a pathologic lesion that is the cause of wrist pain. A thorough wrist examination is still integral to any arthroscopic assessment. This article focuses on the methodology behind a normal arthroscopic wrist examination and discusses some of the more standard arthroscopic procedures along with the expected outcomes.
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Chloros GD, Wiesler ER, Poehling GG. Current concepts in wrist arthroscopy. Arthroscopy 2008; 24:343-54. [PMID: 18308188 DOI: 10.1016/j.arthro.2007.10.006] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2005] [Revised: 10/25/2007] [Accepted: 10/26/2007] [Indexed: 02/02/2023]
Abstract
The purpose of this article is to review the recent literature on arthroscopic treatment of distal radius fractures (DRFs), triangular fibrocartilage complex injuries, intercarpal ligament injuries, and ganglion cysts, including the use of electrothermal devices. A major advantage of arthroscopy in the treatment of DRFs is the accurate assessment of the status of the articular surfaces and the detection of concomitant injuries. Nonrandomized studies of arthroscopically assisted reduction of DRFs show satisfactory results, but there is only 1 prospective randomized study showing the benefits of arthroscopy compared with open reduction-internal fixation. Wrist arthroscopy plays an important role as part of the treatment for DRFs; however, the treatment for each practitioner and each patient needs to be individualized. Wrist arthroscopy is the gold standard in the diagnosis and treatment of triangular fibrocartilage complex injuries. Type 1A injuries may be successfully treated with debridement, whereas the repair of type 1B, 1C, and 1D injuries gives satisfactory results. For type 2 injuries, the arthroscopic wafer procedure is equally effective as ulnar shortening osteotomy but is associated with fewer complications in the ulnar positive wrist. With interosseous ligament injuries, arthroscopic visualization provides critical diagnostic value. Debridement and pinning in the acute setting of complete ligament tears are promising and proven. In the chronic patient, arthroscopy can guide reconstructive options based on cartilage integrity. The preliminary results of wrist arthroscopy using electrothermal devices are encouraging; however, complications have been reported, and therefore, their use is controversial. In dorsal wrist ganglia, arthroscopy has shown excellent results, a lower rate of recurrence, and no incidence of scapholunate interosseous ligament instability compared with open ganglionectomy. Arthroscopy in the treatment of volar wrist ganglia has yielded encouraging preliminary results; however, further studies are warranted to evaluate the safety and efficacy of arthroscopy.
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Affiliation(s)
- George D Chloros
- Department of Orthopaedic Surgery, Wake Forest University School of Medicine, Winston-Salem, North Carolina 27157, USA.
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33
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Slutsky DJ. External fixation of distal radius fractures. J Hand Surg Am 2007; 32:1624-37. [PMID: 18070654 DOI: 10.1016/j.jhsa.2007.09.009] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2007] [Accepted: 09/12/2007] [Indexed: 02/02/2023]
Abstract
External fixation has been used for the treatment of distal radius fractures for more than 50 years. Although the fixator configurations have undergone considerable modification over time, the type of fixator itself is not as important as the underlying principles that provide the foundation for external fixation. Although volar plate fixation is currently in vogue, the indications for external fixation remain largely unchanged. Newer fixator designs have also expanded the traditional usage to include nonbridging applications that allow early wrist motion. The following discussion focuses on the myriad uses for external fixation as well as the shortcomings and potential pitfalls.
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