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Zhao Y, Chen W, Su T, Zhou G, Jiang D, Yuan H. Comparison of the diagnostic value of measurements of transverse syndesmotic interval and 'lambda sign' in distinguishing latent syndesmotic diastasis in chronic lateral ankle instability: a cross-sectional study of 188 cases. Arch Orthop Trauma Surg 2023; 143:2037-2045. [PMID: 35729435 DOI: 10.1007/s00402-022-04500-7] [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: 01/20/2022] [Accepted: 05/28/2022] [Indexed: 11/25/2022]
Abstract
INTRODUCTION Chronic lateral ankle instability (CLAI) could accompany with latent syndesmotic diastasis (LSD), which is difficult to distinguish before surgery. Tibiofibular interval width and extravasation of joint fluid ('lambda sign') on MRI are widely used in the diagnosis of syndesmotic injury, but the reliability of these methods in distinguishing the associated LSD in CLAI was rarely studied. Our objective was to compare the diagnostic value of the measurement of the transverse tibiofibular interval and 'lambda sign' on MRI in distinguishing LSD in CLAI and to investigate the radiological predictor that best matched the intraoperatively measured syndesmotic width. METHODS 138 CLAI patients undergoing arthroscopy in our institute from March 2017 to June 2020 were enrolled (CLAI group). Anterior space width (ASW) and posterior space width (PSW) at 10 mm layer above tibial articular and fluid height above tibial articular surface (FH) were measured on preoperative MRI. The same parameters were measured on MRI of 50 healthy volunteers as control group. At arthroscopy, syndesmotic width was measured and the patients were divided into arthroscopic widening (AW) and arthroscopic normal (AN) subgroup taking 2 mm as critical value. The CLAI group was compared with the control group to explore the interval changes related to CLAI. The AW and AN subgroups were compared to explore the potential diagnostic indicators and reference values for the LSD. RESULTS All parameters showed significant difference between CLAI group and control group (p < 0.05), but only PSW (p = 0.004) showed significant difference between AW and AN subgroups other than FH (p = 0.461). Only PSW was involved in formula of multiple-factor analysis (p = 0.005; OR, 1.819; 95%CI, 1.196-2.767). ROC analysis showed critical value of PSW was 3.8 mm (sensitivity, 66%; specificity, 66%; accuracy, 66.7%), while accuracy of lambda sign was 41.3%. CONCLUSIONS Transverse tibiofibular interval measurements were more reliable than the 'lambda sign' in distinguishing associated LSD in CLAI patients. The PSW ≥ 3.8 mm could be a predictor of syndesmotic diastasis.
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Affiliation(s)
- Yuqing Zhao
- Radiology Department, Peking University Third Hospital, No.49 North Garden Road, Haidian, Beijing, 100191, China
| | - Wen Chen
- Radiology Department, Peking University Third Hospital, No.49 North Garden Road, Haidian, Beijing, 100191, China
| | - Tong Su
- Department of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital. Institute of Sports Medicine of Peking University, No.49 North Garden Road, Haidian, Beijing, 100191, China
| | - Guangjin Zhou
- Radiology Department, Peking University Third Hospital, No.49 North Garden Road, Haidian, Beijing, 100191, China
| | - Dong Jiang
- Department of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital. Institute of Sports Medicine of Peking University, No.49 North Garden Road, Haidian, Beijing, 100191, China.
| | - Huishu Yuan
- Radiology Department, Peking University Third Hospital, No.49 North Garden Road, Haidian, Beijing, 100191, China.
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Mutschler M, Naendrup JH, Pfeiffer TR, Jaecker V, Arbab D, Shafizadeh S, Buchhorn T. Current status of the management of isolated syndesmotic injuries in Germany. Arch Orthop Trauma Surg 2023; 143:2019-2026. [PMID: 35403865 PMCID: PMC10030432 DOI: 10.1007/s00402-022-04423-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 03/10/2022] [Indexed: 11/02/2022]
Abstract
INTRODUCTION Although non-fracture-related syndesmotic injuries of the ankle are relatively rare, they may lead to poor clinical outcome if initially undiagnosed or managed improperly. Despite a variety of literature regarding possibilities for treatment of isolated syndesmotic injuries, little is known about effective applications of different therapeutic methods in day-to-day work. The aim of this study was to assess the current status of the treatment of isolated syndesmotic injuries in Germany. MATERIALS AND METHODS An online-questionnaire, capturing the routine diagnostic workup including clinical examination, radiologic assessment and treatment strategies, was sent to all members of the German Society of Orthopedic Surgery and Traumatology (DGOU) and Association of Arthroscopic and Joint Surgery (AGA). Statistical analysis was performed using Microsoft excel and SPSS. RESULTS Each question of the questionnaire was on average answered by 431 ± 113 respondents. External rotation stress test (66%), squeeze test (61%) and forced dorsiflexion test (40%) were most commonly used for the clinical examination. In the diagnostic workup, most clinicians relied on MRI (83%) and conventional X-ray analysis (anterior-posterior 58%, lateral 41%, mortise view 38%). Only 15% of the respondents stated that there is a role for arthroscopic evaluation for the assessment of isolated syndesmotic injuries. Most frequently used fixation techniques included syndesmotic screw fixation (80%, 42% one syndesmotic screw, 38% two syndesmotic screws), followed by suture-button devices in 13%. Syndesmotic screw fixation was mainly performed tricortically (78%). While 50% of the respondents stated that syndesmotic screw fixation and suture-button devices are equivalent in the treatment of isolated syndesmotic injuries with respect to clinical outcome, 36% answered that syndesmotic screw fixation is superior compared to suture-button devices. CONCLUSIONS While arthroscopy and suture-button devices do not appear to be widely used, syndesmotic screw fixation after diagnostic work-up by MRI seems to be the common treatment algorithm for non-fracture-related syndesmotic injuries in Germany.
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Affiliation(s)
- Manuel Mutschler
- Witten/Herdecke University, Witten/Herdecke, Germany, Alfred-Herrhausen-Straße 50, 58448.
- Department of Foot Surgery, Waldkrankenhaus Bonn, Johanniter GmbH, Bonn, Germany, Waldstraße 73, 53177.
| | - Jan-Hendrik Naendrup
- Department of Trauma Surgery, Orthopaedic Surgery and Sports Traumatology, Witten/Herdecke University, Cologne Merheim Medical Centre, Cologne, Germany
- Department of Oncology, HaematologyInfectiology and Internistic Critical Care Medicine, University of Cologne, Cologne, Germany
| | - Thomas R Pfeiffer
- Department of Trauma Surgery, Orthopaedic Surgery and Sports Traumatology, Witten/Herdecke University, Cologne Merheim Medical Centre, Cologne, Germany
| | - Vera Jaecker
- Department of Trauma Surgery, Orthopaedic Surgery and Sports Traumatology, Witten/Herdecke University, Cologne Merheim Medical Centre, Cologne, Germany
| | - Dariusch Arbab
- Witten/Herdecke University, Witten/Herdecke, Germany, Alfred-Herrhausen-Straße 50, 58448
- Department of Orthopaedic Surgery, Klinikum Dortmund, Dortmund, Germany
| | - Sven Shafizadeh
- Witten/Herdecke University, Witten/Herdecke, Germany, Alfred-Herrhausen-Straße 50, 58448
- Department of Trauma Surgery, Orthopaedic Surgery and Sports Traumatology, Sana Medical Centre Cologne, Cologne, Germany
| | - Tomas Buchhorn
- Foot and Ankle Department, Sporthopaedicum Straubing-Regensburg, Straubing, Germany
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“Flexible nature of fixation” in syndesmotic stabilization of the inferior tibiofibular joint affects the radiological reduction outcome. INTERNATIONAL ORTHOPAEDICS 2022; 46:2649-2657. [PMID: 35982324 PMCID: PMC9556355 DOI: 10.1007/s00264-022-05550-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 08/11/2022] [Indexed: 11/01/2022]
Abstract
Abstract
Purpose
Fibular mobility after suture button stabilization (SBS) of inferior tibiofibular joint (syndesmosis) injuries has been described. This effect is called the “flexible nature of fixation (FNF).” In this study, we aimed to quantify FNF in syndesmotic stabilization.
Methods
Postoperative bilateral computed tomography (CT) of ankle fractures with syndesmosis stabilization by SBS or syndesmotic screw (SYS) was retrospectively analyzed. The transverse offset (TO) and vertical offset (VO) were defined by evaluating the drill channels. The reduction outcome was evaluated by the side-to-side difference between the clear space and the anterior tibiofibular distance (antTFD). The calculated anterior tibiofibular distance (cal-antTFD) was calculated by subtracting the TO from the validated antTFD. Subsequently, a reevaluation of the reduction outcomes after SYS or SBS stabilization was performed using cal-antTFD.
Results
Sixty patients (44 with SBS and 16 with SYS stabilization) were analyzed. The intra-rater and inter-rater reliabilities for TO and VO were excellent (α > 0.92). SYS stabilization showed lower mean TO (− 0.02 mm; SD 0.14) and VO (0.11 mm; SD, 0.29 mm) than SBS stabilization (TO 1.16 mm, SD 1.4 mm; VO 0.2 mm, SD 0.8 mm; p = 0.001). The rate of malreduction according to cal-antTFD was higher than that of antFTD (p = 0.033).
Conclusion
The presented method, which evaluates the position of the tibial to the fibular drill channel, allowed the quantification of the “FNF.” The often described difference in the dynamic stabilization of SBS compared to the rigid stabilization by SYS could be objectified. Considering cal-antTFD illustrates that FNF potentially reduces the rate of malreduction in SBS stabilization.
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Altmeppen JN, Colcuc C, Balser C, Gramlich Y, Klug A, Neun O, Manegold S, Hoffmann R, Fischer S. A 10-Year Follow-Up of Ankle Syndesmotic Injuries: Prospective Comparison of Knotless Suture-Button Fixation and Syndesmotic Screw Fixation. J Clin Med 2022; 11:jcm11092524. [PMID: 35566650 PMCID: PMC9105986 DOI: 10.3390/jcm11092524] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 04/24/2022] [Accepted: 04/28/2022] [Indexed: 12/16/2022] Open
Abstract
Background: Acute syndesmosis injury (ASI) is an indication for surgical stabilization if instability is confirmed. In recent years, fixation using the knotless suture-button (SB) device has become increasingly established as an alternative to set screw fixation (SF). This study directly compared the clinical long-term results after prospective randomized inclusion. Materials and Methods: Between 2011 and 2012, 62 patients with ASI were enrolled in a prospective, randomized, and monocentric study. Forty-one patients were available for a 10-year follow-up ((31 males and 10 females), including 21 treated with SB (mean age 44.4 years), and 20 with SF (mean age 47.2 years)). In addition to comparing the demographic data and syndesmosis injury etiology, follow-up assessed the Olerud−Molander Ankle Score (OMAS) and FADI-Score (Foot and Ankle Disability Index Score) with subscales for activities of daily living (ADL) and sports activity. Results: The mean OMAS was 95.98 points (SB: 98.81, SF: 93.00), the mean FADI ADL was 97.58 points (SB: 99.22, SF: 95.86), and the mean FADI Sport was 94.14 points (SB: 97.03, SF: 91.10). None of the measurements differed significantly between the groups (p > 0.05). No clinical suspicion of chronic instability remained in any of the patients, regardless of treatment. Conclusions: The short-term results showed that athletes in particular benefit from SB fixation due to their significantly faster return to sports activities. However, the available long-term results confirm a very good outcome in the clinical scores for both approaches. Chronic syndesmotic insufficiency was not suspected in any of the patients. Level of evidence: I, randomized controlled trial.
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Affiliation(s)
- Jan Niklas Altmeppen
- Department for Trauma and Orthopaedic Surgery, Berufsgenossenschaftliche Unfallklinik Frankfurt am Main, 60389 Frankfurt, Germany; (J.N.A.); (C.B.); (Y.G.); (A.K.); (R.H.)
| | - Christian Colcuc
- Department of Trauma and Orthopaedic Surgery, Evangelical Hospital Bethel Bielefeld, 33611 Bielefeld, Germany;
| | - Christian Balser
- Department for Trauma and Orthopaedic Surgery, Berufsgenossenschaftliche Unfallklinik Frankfurt am Main, 60389 Frankfurt, Germany; (J.N.A.); (C.B.); (Y.G.); (A.K.); (R.H.)
| | - Yves Gramlich
- Department for Trauma and Orthopaedic Surgery, Berufsgenossenschaftliche Unfallklinik Frankfurt am Main, 60389 Frankfurt, Germany; (J.N.A.); (C.B.); (Y.G.); (A.K.); (R.H.)
| | - Alexander Klug
- Department for Trauma and Orthopaedic Surgery, Berufsgenossenschaftliche Unfallklinik Frankfurt am Main, 60389 Frankfurt, Germany; (J.N.A.); (C.B.); (Y.G.); (A.K.); (R.H.)
| | - Oliver Neun
- Department of Foot and Ankle Surgery, Berufsgenossenschaftliche Unfallklinik Frankfurt am Main, 60389 Frankfurt, Germany; (O.N.); (S.M.)
| | - Sebastian Manegold
- Department of Foot and Ankle Surgery, Berufsgenossenschaftliche Unfallklinik Frankfurt am Main, 60389 Frankfurt, Germany; (O.N.); (S.M.)
| | - Reinhard Hoffmann
- Department for Trauma and Orthopaedic Surgery, Berufsgenossenschaftliche Unfallklinik Frankfurt am Main, 60389 Frankfurt, Germany; (J.N.A.); (C.B.); (Y.G.); (A.K.); (R.H.)
| | - Sebastian Fischer
- Department of Foot and Ankle Surgery, Berufsgenossenschaftliche Unfallklinik Frankfurt am Main, 60389 Frankfurt, Germany; (O.N.); (S.M.)
- Correspondence: ; Tel.: +49-(0)-69-475-0
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