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Valentina Viglione Clinica Ortopedica e Traumatologica 1 IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy

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Angelo Boffa Applied and Translational Research (ATR) Center, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy

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Davide Previtali Department of Surgery, EOC, Service of Orthopaedics and Traumatology, Lugano, Switzerland

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Francesca Vannini Clinica Ortopedica e Traumatologica 1 IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy

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Cesare Faldini Clinica Ortopedica e Traumatologica 1 IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy

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Giuseppe Filardo Applied and Translational Research (ATR) Center, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
Department of Surgery, EOC, Service of Orthopaedics and Traumatology, Lugano, Switzerland
Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland

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Purpose

  • The study of the placebo effect is key to elucidate the ‘real effect’ of conservative interventions for plantar fasciitis. The aim of this meta-analysis was to quantify the impact of placebo in the different conservative treatments of plantar fasciitis.

Methods

  • A systematic literature review was performed on double-blind placebo-controlled trials (RCTs) according to PRISMA guidelines on PubMed, Embase, and Web of Science. The meta-analysis primary outcome was the 0–10 pain variation after placebo treatments analyzed at 1 week, 1, 3, 6, and 12 months. The risk of bias was assessed using the RoB 2.0 tool, while the overall quality of evidence was graded according to the GRADE guidelines.

Results

  • The placebo effect for conservative treatments was studied in 42 double-blind RCTs on 1724 patients. The meta-analysis of VAS pain showed a statistically significant improvement after placebo administration of 2.13/10 points (P < 0.001), being highest at 12 months with 2.79/10 points (P < 0.001). The improvement of the placebo groups was higher in the extracorporeal shock wave therapy studies compared to the injection studies (2.59 vs 1.78; P = 0.05). Eight studies had a low risk of bias, 23 studies had ‘some concerns,’ and 4 studies had a high risk of bias. The GRADE evaluation showed an overall high quality of evidence.

Conclusion

  • This systematic review and meta-analysis demonstrated that the placebo effect represents an important component of all conservative approaches to treat plantar fasciitis. This effect is statistically and clinically significant, increases over time, and depends on the type of conservative treatment applied to address plantar fasciitis.

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Hagen Fritzsche University Center for Orthopaedics, Trauma and Plastic Surgery, University Hospital Carl Gustav Carus, TU Dresden, Fetscherstrasse, Dresden, Germany

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Anne Weidlich University Center for Orthopaedics, Trauma and Plastic Surgery, University Hospital Carl Gustav Carus, TU Dresden, Fetscherstrasse, Dresden, Germany

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Klaus-Dieter Schaser University Center for Orthopaedics, Trauma and Plastic Surgery, University Hospital Carl Gustav Carus, TU Dresden, Fetscherstrasse, Dresden, Germany

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Elisabeth Mehnert University Center for Orthopaedics, Trauma and Plastic Surgery, University Hospital Carl Gustav Carus, TU Dresden, Fetscherstrasse, Dresden, Germany

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Doreen Winkler University Center for Orthopaedics, Trauma and Plastic Surgery, University Hospital Carl Gustav Carus, TU Dresden, Fetscherstrasse, Dresden, Germany

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Stefan Rammelt University Center for Orthopaedics, Trauma and Plastic Surgery, University Hospital Carl Gustav Carus, TU Dresden, Fetscherstrasse, Dresden, Germany

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  • Musculoskeletal tumours of foot or ankle make up about 4–5% of all musculoskeletal tumours. Fortunately, about 80% of them are benign. However, due to the rarity and low prevalence of each single tumour entity, diagnosis is often difficult and delayed.

  • Ultrasonography is an important diagnostic tool to safely recognize ganglion cysts as a frequently encountered ‘bump’ in the foot.

  • In suspicious lesions, malignancy must be excluded histologically in a tumour center by biopsy after imaging procedures using x-ray, computed tomography (CT) and magnetic resonance imaging (MRI).

  • Most of the benign tumours do not require any further surgical therapy. Resection should be performed in the case of locally aggressive tumour growth or local symptoms of discomfort. In contrast to malignant tumours, the primary purpose in the resection is the least possible loss of function.

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Michael J Raschke Department of Trauma-, Hand- and Reconstructive Surgery, University Hospital Muenster, Muenster, Germany

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Sabine Ochman Department of Trauma-, Hand- and Reconstructive Surgery, University Hospital Muenster, Muenster, Germany

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Alexander Milstrey Department of Trauma-, Hand- and Reconstructive Surgery, University Hospital Muenster, Muenster, Germany

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  • The relevance of geriatric ankle fractures is continuously increasing.

  • Treatment of these patients remains challenging and requires adapted diagnostic and therapeutic strategies, as compliance to partial weight bearing is difficult to maintain compared to younger patients.

  • In addition, in the elderly even low impact injuries may lead to severe soft tissue trauma, influencing timing and operative strategies.

  • Recently, the direct posterolateral approach and plate fixation techniques, angular stable implants as well as intramedullary nailing of the distal fibula have been found to improve stategical concepts.

  • This article aims to provide a comprehensive overview of the diagnostic and recent aspects with respect to how this difficult entity of injuries should be approached.

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Martin Riegger Service of Orthopaedics and Traumatology, Department of Surgery, EOC, Lugano, Switzerland
Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland

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Nermine Habib Department of Orthopedic Surgery, Hopital fribourgeois (HFR) – Freiburger Spital (HFR), Fribourg, Switzerland

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Enrique Adrian Testa Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland
Service of Orthopaedics and Traumatology, Department of Surgery, EOC, Bellinzona, Switzerland

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Jochen Müller Service of Orthopaedics and Traumatology, Department of Surgery, EOC, Lugano, Switzerland
Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland

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Marco Guidi Department of Plastic Surgery and Hand Surgery, Kantonsspital, Aarau, Switzerland

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Christian Candrian Service of Orthopaedics and Traumatology, Department of Surgery, EOC, Lugano, Switzerland
Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland

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Purpose

  • The biomechanical characteristics of different techniques to perform the modified Lapidus procedure are controversial, discussing the issue of stability, rigidity, and compression forces from a biomechanical point of view. The aim of this systematic review was to investigate the available options to identify whether there is a procedure providing superior biomechanical results.

Methods

  • A comprehensive literature search was performed by screening PubMed, Embase, and Cochrane databases until September 2021. There was a wide heterogeneity of the available data in the different studies. Load to failure, stiffness, and compression forces were summarized and evaluated.

Results

  • Seventeen biomechanical studies were retrieved – ten cadaveric and seven polyurethane foam (artificial bone) studies. Fixation methods ranged from the classic crossed screw approach (n = 5) to plates (dorsomedial and plantar) with or without compression screws (n = 11). Newer implants such as intramedullary stabilization screws (n = 1) and memory alloy staples (n = 2) were investigated.

Conclusion

  • The two crossed screws construct is still a biomechanical option; however, according to this systematic review, there is strong evidence that a plate–screw construct provides superior stability especially in combination with a compression screw. There is also evidence about plate position and low evidence about compression screw position. Plantar plates seem to be advantageous from a biomechanical point of view, whereas compression screws could be better when positioned outside the plate. Overall, this review suggests the biomechanical advantages of using a combination of locking plates with a compression screw.

Open access
Wout Füssenich Department of Orthopedic Surgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands

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Gesine H Seeber Department of Orthopedic Surgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
University Hospital for Orthopaedics and Trauma Surgery Pius-Hospital, Medical Campus University of Oldenburg, Oldenburg, Germany

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Julian R Zwoferink Center for Human Movement Sciences, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands

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Matthijs P Somford Department of Orthopedic Surgery, Rijnstate Hospital, Arnhem, The Netherlands

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Martin Stevens Department of Orthopedic Surgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands

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Purpose

  • A systematic review to determine the effect of different types of joint preparation, joint fixation, and postoperative weight-bearing protocols on non-union frequency in first metatarsophalangeal joint (MTPJ) arthrodesis in patients with moderate-to-severe hallux valgus.

Material and methods

  • A systematic literature search (PubMed and EMBASE), adhering to PRISMA guidelines. Data on MTPJ preparation, fixation, weight-bearing, and non-union in patients with moderate-to-severe hallux valgus were collected. Quality assessment was performed using the Coleman Methodology Score.

Results

  • Sixteen studies (934 feet) were included, generally of medium quality. Overall non-union rate was 7.7%. At 6.3%, convex/concave joint preparation had the lowest non-union rate vs 12.2% for hand instruments and 22.2% for planar cuts. Non-union of 2.8% was found for joint fixation with a plate combined with a lag screw vs 6.5% for plate fixation, 11.1% for crossed screw fixation, and 12.5% for a plate with a cross plate compression screw. A 5.1% non-union frequency was found following postoperative full weight-bearing on a flat shoe vs 9.3% for full weight-bearing on a heel weight-bearing shoe and 0% for a partial weight-bearing regimen.

Conclusion

  • Based on medium-quality papers, joint preparation with convex/concave reamers and joint fixation with a plate using a lag screw show the lowest non-union rate. Full postoperative weight-bearing in a stiff-soled postoperative shoe is safe and not associated with non-union vs a more protective load-bearing regimen. Further research should focus on larger sample sizes, longer follow-ups, and stronger study designs.

Open access
Patrick Ziegler BG Klinik Tübingen, Department of Traumatology and Reconstructive Surgery, Eberhard Karls University of Tübingen, Tübingen, Germany
Department of Orthopaedics and Trauma Surgery, Klinik Gut, St. Moritz, Switzerland

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Christian Bahrs Schön Klinik Neustadt, Neustadt in Holstein, Germany

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Christian Konrads Department of Orthopaedic Surgery, University of Tübingen, Tübingen, Germany

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Philipp Hemmann BG Klinik Tübingen, Department of Traumatology and Reconstructive Surgery, Eberhard Karls University of Tübingen, Tübingen, Germany

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Marc-Daniel Ahrend BG Klinik Tübingen, Department of Traumatology and Reconstructive Surgery, Eberhard Karls University of Tübingen, Tübingen, Germany
AO Research Institute Davos, Davos Switzerland

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  • The present narrative review provides a summary of current concepts for the treatment of ankle fractures in elderly patients.

  • Despite a high complication rate, open reduction and internal fixation is the gold standard for operative care. However, individual patient-based treatment decision considering the soft-tissue status, the fracture pattern, as well as the patient’s mobility and comorbidities is mandatory to achieve sufficient patient outcomes.

  • Due to high complication rates after surgery in the past, techniques such as fibular nails or minimal invasive techniques should be considered.

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Bart A Swierstra Medical Guidelines, Amsterdam, The Netherlands

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W Annefloor van Enst Medical Guidelines, Amsterdam, The Netherlands

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  • The aim of this study was to update the scientific evidence for ankle fracture prognosis by addressing radiographic osteoarthritis, time course and prognostic factors.

  • A systematic review was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Studies were included if they were randomized controlled trials, controlled trials or observational studies, including case series and case-control studies investigating radiologically confirmed osteoarthritis in adults with a classified ankle fracture, treated with or without surgery, with a minimum follow-up of 1 year. Also included were studies examining prognostic factors predicting radiologically confirmed osteoarthritis. Tibial plafond and talus fractures were excluded.

  • Thirty-four studies were included examining 3447 patients. Extracted data included study type, inclusion and exclusion criteria, age, number of patients, number of fractures according to the author-reported classification method, radiological osteoarthritis, follow-up period, prognostic factors, and treatment.

  • Severe heterogeneity was visible in the analyses (I2 > 90%), reflecting clinical heterogeneity possibly arising from the presence of osteoarthritis at baseline, the classifications used for the fractures and for osteoarthritis.

  • The incidence of osteoarthritis was 25% (95% CI: 18–32) and 34% (95% CI: 23–45) for more severe fractures with involvement of the posterior malleolus.

  • The severity of the trauma, as reflected by the fracture classification, was the most important prognostic factor for the development of radiographic osteoarthritis, but there is also a risk with simpler injuries.

  • The period within which osteoarthritis develops or becomes symptomatic with an indication for treatment could not be specified.

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Felix Kurt Massen Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Munich, Germany

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Seth Shoap Trauma Training Center, Department of Orthopaedic Surgery, Columbia University Medical Center, New York, New York, USA

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J Turner Vosseller Department of Orthopaedic Surgery, Columbia University Medical Center, New York, New York, USA

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Weija Fan Mailman School of Public Health, Department of Biostatistics, Columbia University, New York, New York, USA

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John Usseglio Augustus C. Long Health Sciences Library, Columbia University Irving Medical Center, New York, New York, USA

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Wolfgang Boecker Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Munich, Germany

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Sebastian Felix Baumbach Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Munich, Germany

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Hans Polzer Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Munich, Germany

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Purpose

  • The aim of this systematic review and meta-analysis was to compare re-rupture rates, complication rates, functional outcomes, as well as return to work (RTW)/sport (RTS) among different rehabilitation protocols following operative treatment of acute Achilles tendon ruptures.

Methods

  • Systematic review and meta-analysis was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Five databases were searched for randomized controlled trials (RCTs) comparing at least two rehabilitation protocols following surgical repair of acute Achilles tendon ruptures. Rehabilitation protocols were classified as a variation of either non-weightbearing (NWB) or weightbearing (WB) and immobilization (IM) or mobilization (M). The data collection consisted of re-ruptures, complications, and RTW/RTS.

Results

  • Out of 2760 studies screened, 20 RCTs with 1007 patients were eligible. Fourteen studies included a group consisting of WB + M (Group 1), 11 of WB + IM (Group 2), 3 of NWB + M (Group 3), and 13 of NWB + IM (Group 4). Outcome parameters available for a meta-analysis were re-ruptures, complications, RTW, and RTS. Re-ruptures overall occurred in 2.7%, with prevalences ranging between 0.04 and 0.08. Major complications occurred in 2.6%, with prevalences ranging between 0.02 and 0.03. Minor complications occurred in 11.8% with prevalances ranging between 0.04 to 0.17. Comparing the odds-ratios between the four different groups revealed no significant differences with overall favourable results for group 1 (WB+M).

Conclusion

  • Early functional rehabilitation protocols with early ankle M and WB following surgical repair of acute Achilles tendon ruptures are safe and they apparently allow for a quicker RTW and RTS and seem to lead to favourable results.

Open access
F T Spindler Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Munich, Germany

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V Herterich Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Munich, Germany

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B M Holzapfel Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Munich, Germany

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W Böcker Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Munich, Germany

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H Polzer Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Munich, Germany

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S F Baumbach Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Munich, Germany

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Purpose

  • The aim was to conduct a systematic literature review and meta-anaylsis to analyze the diagnostic accuracy of the external rotation stress test (ERST) for syndesmotic injuries.

Methods

  • The systematic review was conducted according to the PRISMA-P guidelines (Prospero ID: CRD42021282457). Four common databases were searched from inception to September 29, 2021. Eligible were any studies facilitating the ERST under fluoroscopy in a defined state of syndesmotic instability. Syndesmotic ligament-specific rupture must have been proven by MRI, arthroscopy, or controlled dissection (cadaver study). Two reviewers independently conducted each step of the systematic literature review. The risk of bias was assessed by the Quality Appraisal for Cadaveric Studies Score scale. The data analysis was performed qualitatively and quantitatively.

Results

  • Eight studies were eligible for a qualitative analysis, and six studies were eligible for a quantitative analysis. All studies included were cadaver studies. The qualitative analysis comprised 94 specimens and revealed considerable heterogeneity. Six studies allowed for a quantitative analysis of the tibiofibular clear space (TFCS) and five studies for the medial clear space (MCS) during the ERST. The quantitative analysis of the TFCS revealed no significant differences between intact and any stage of syndesmotic injury. The MCS was able to differentiate between intact and 2-ligament- (Z = 2.04, P = 0.02), 3-ligament- (Z = 3.2, P = 0.001), and 3-ligament + deltoid ruptures (Z = 3.35, P < 0.001).

Conclusion

  • The ERST is the only noninvasive test to assess syndesmotic instability and can be conducted bilaterally. The uninjured contralateral side can serve as a baseline reference. Based on the conducted quantitative analysis, the MCS seems to be able to differentiate between stable (intact/1-ligament) and unstable (2-ligament/3-ligament) lesions.

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Xue Ling Chong Centre Assal SA, Foot and Ankle Surgery Centre, La Colline, Geneva, Switzerland

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Lisca Drittenbass Centre Assal SA, Foot and Ankle Surgery Centre, La Colline, Geneva, Switzerland

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Victor Dubois-Ferriere Centre Assal SA, Foot and Ankle Surgery Centre, La Colline, Geneva, Switzerland

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Mathieu Assal Centre Assal SA, Foot and Ankle Surgery Centre, La Colline, Geneva, Switzerland

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  • Current literature has described many of the complications following hallux valgus surgery and their treatment options.

  • Iatrogenic transfer metatarsalgia is a distinctive and challenging complication that has not been addressed in a comprehensive fashion yet.

  • Iatrogenic transfer metatarsalgia may result from poor preoperative assessment, planning and/or surgical technique.

  • We have classified the causes of iatrogenic transfer metatarsalgia based on a multiplanar assessment of the malalignment(s) and are recommending a comprehensive treatment algorithm to guide surgeons in addressing this complication.

  • With this knowledge, surgeons may avoid potential pitfalls in the primary surgery that can result in iatrogenic transfer metatarsalgia and find the appropriate treatment option to correct them.

Open access