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Mühlenfeld N, Wagner FC, Hupperich A, Heykendorf L, Frodl A, Obid P, Kühle J, Schmal H, Erdle B, Jaeger M. Clavicle Shaft Non-Unions-Do We Even Need Bone Grafts? J Clin Med 2024; 13:4850. [PMID: 39200992 PMCID: PMC11355853 DOI: 10.3390/jcm13164850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2024] [Revised: 08/02/2024] [Accepted: 08/15/2024] [Indexed: 09/02/2024] Open
Abstract
Background: The surgical treatment of bony non-unions is traditionally performed with additional bone grafts when atrophic and/or stronger implants when hypertrophic. In the case of the clavicle shaft, however, in our experience, a more controversial method where no additional bone graft is needed leads to equally good consolidation rates, independent of the non-union morphology. This method requires the meticulous anatomical reconstruction of the initial fracture and fixation according to the AO principle of relative stability. Methods: A retrospective review following the STROBE guidelines was performed on a consecutive cohort of all patients who received surgical treatment of a midshaft clavicle non-union at the Medical Center of the University of Freiburg between January 2003 and December 2023. Patients were identified using a retrospective systematical query in the Hospital Information System (HIS) using the International Statistical Classification of Diseases and Related Health Problems Version 10 (ICD-10) codes of the German Diagnosis Related Groups (G-DRG). Two groups were formed to compare the consolidation rates of patients who received additional bone grafting from the iliac crest with those of patients who did not. A 3.5 mm reconstruction LCP plate was used in all patients. Consolidation rates were evaluated using follow-up radiographs and outcomes after material removal with a mean follow-up of 31.5 ± 44.3 months (range 0-196). Results: Final data included 50 patients, predominantly male (29:21); age: 46.0 ± 13.0 years, BMI 26.1 ± 3.7. Autologous bone grafts from the iliac crest were used in 38.0% (n = 19), while no bone addition was used in 62.0% (n = 30). Six patients were lost to follow-up. Radiological consolidation was documented after a mean of 15.1 ± 8.0 months for the remaining 44 patients. Consolidation rates were 94.4% (n = 17) in patients for whom additional bone grafting was used and 96.2% (n = 25) in patients for whom no graft was used. There was no relevant difference in the percentage of atrophic or hypertrophic non-unions between both groups (p = 0.2425). Differences between groups in the rate of consolidation were not significant (p = 0.7890). The complication rate was low, with 4.5% (n = 2). Conclusions: Independent of the non-union morphology, non-unions of the clavicle midshaft can be treated successfully with 3.5 mm locking reconstruction plates without the use of additional bone grafting in most cases.
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Affiliation(s)
- Nils Mühlenfeld
- Department of Orthopedics and Trauma Surgery, Medical Centre-Albert-Ludwigs-University of Freiburg, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, 79106 Freiburg, Germany; (F.C.W.); (A.H.); (L.H.); (A.F.); (P.O.); (J.K.); (H.S.); (B.E.); (M.J.)
| | - Ferdinand C. Wagner
- Department of Orthopedics and Trauma Surgery, Medical Centre-Albert-Ludwigs-University of Freiburg, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, 79106 Freiburg, Germany; (F.C.W.); (A.H.); (L.H.); (A.F.); (P.O.); (J.K.); (H.S.); (B.E.); (M.J.)
| | - Andreas Hupperich
- Department of Orthopedics and Trauma Surgery, Medical Centre-Albert-Ludwigs-University of Freiburg, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, 79106 Freiburg, Germany; (F.C.W.); (A.H.); (L.H.); (A.F.); (P.O.); (J.K.); (H.S.); (B.E.); (M.J.)
| | - Lukas Heykendorf
- Department of Orthopedics and Trauma Surgery, Medical Centre-Albert-Ludwigs-University of Freiburg, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, 79106 Freiburg, Germany; (F.C.W.); (A.H.); (L.H.); (A.F.); (P.O.); (J.K.); (H.S.); (B.E.); (M.J.)
| | - Andreas Frodl
- Department of Orthopedics and Trauma Surgery, Medical Centre-Albert-Ludwigs-University of Freiburg, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, 79106 Freiburg, Germany; (F.C.W.); (A.H.); (L.H.); (A.F.); (P.O.); (J.K.); (H.S.); (B.E.); (M.J.)
| | - Peter Obid
- Department of Orthopedics and Trauma Surgery, Medical Centre-Albert-Ludwigs-University of Freiburg, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, 79106 Freiburg, Germany; (F.C.W.); (A.H.); (L.H.); (A.F.); (P.O.); (J.K.); (H.S.); (B.E.); (M.J.)
| | - Jan Kühle
- Department of Orthopedics and Trauma Surgery, Medical Centre-Albert-Ludwigs-University of Freiburg, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, 79106 Freiburg, Germany; (F.C.W.); (A.H.); (L.H.); (A.F.); (P.O.); (J.K.); (H.S.); (B.E.); (M.J.)
| | - Hagen Schmal
- Department of Orthopedics and Trauma Surgery, Medical Centre-Albert-Ludwigs-University of Freiburg, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, 79106 Freiburg, Germany; (F.C.W.); (A.H.); (L.H.); (A.F.); (P.O.); (J.K.); (H.S.); (B.E.); (M.J.)
- Department of Orthopedic Surgery, University Hospital Odense, Sdr. Boulevard 29, 5000 Odense, Denmark
| | - Benjamin Erdle
- Department of Orthopedics and Trauma Surgery, Medical Centre-Albert-Ludwigs-University of Freiburg, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, 79106 Freiburg, Germany; (F.C.W.); (A.H.); (L.H.); (A.F.); (P.O.); (J.K.); (H.S.); (B.E.); (M.J.)
| | - Martin Jaeger
- Department of Orthopedics and Trauma Surgery, Medical Centre-Albert-Ludwigs-University of Freiburg, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, 79106 Freiburg, Germany; (F.C.W.); (A.H.); (L.H.); (A.F.); (P.O.); (J.K.); (H.S.); (B.E.); (M.J.)
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Jubel A, Knopf M, Jubel JM, Herbst H, Antonie M. [Clavicle nonunion]. UNFALLCHIRURGIE (HEIDELBERG, GERMANY) 2024:10.1007/s00113-024-01465-7. [PMID: 39058394 DOI: 10.1007/s00113-024-01465-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/26/2024] [Indexed: 07/28/2024]
Abstract
After conservative treatment nonunion (pseudarthrosis) of the clavicle can be observed approximately 10 times more frequently (15-24%) than after surgical treatment (1.4%). Risk factors include the fracture location, displacement, fracture type, sex, the severity of the accident and refractures. The diagnosis of pseudarthrosis of the clavicle can be made by a thorough medical history, clinical examination and imaging procedures. The main symptom is pain, often accompanied by malalignment, instability, neurological symptoms and restricted mobility of the affected shoulder. The diagnosis is confirmed by X‑ray images and, if necessary, a computed tomography (CT) scan. Pseudoarthrosis is classified according to the morphological appearance in X‑ray images and the cause. A differentiation is made between vital and nonvital pseudarthroses. Only symptomatic pseudarthrosis requires treatment. Nonoperative methods, such as magnetic field therapy or ultrasound are minimally effective. Surgical interventions are indicated for pain, movement restrictions or neurovascular problems. The goals of surgical treatment are to restore the vitality, bone length and stability through angular stable osteosynthesis. In cases of surgical pretreatment the anteroinferior plate position offers a good alternative to the superior plate position. In some cases double plating osteosynthesis can be indicated. Autogenous bone material, allogeneic substitute material and vascularized grafts are used for bony defects. Surgical treatment shows high rates of healing but also carries an increased risk of infection.
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Affiliation(s)
- Axel Jubel
- Klinik für Unfall- und Wiederherstellungschirurgie, Eduardus-Krankenhaus Köln, Custodisstr. 3-17, 50679, Köln, Deutschland.
- Department Medizin, Danube Private University, Krems, Österreich.
| | - Maximilian Knopf
- Department Medizin, Danube Private University, Krems, Österreich
| | - Jil Marie Jubel
- Klinik und Poliklinik für Dermatologie und Allergologie, Universitätsklinikum Bonn, Bonn, Deutschland
| | - Hannah Herbst
- Department Medizin, Danube Private University, Krems, Österreich
| | - Moritz Antonie
- Department Medizin, Danube Private University, Krems, Österreich
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Cavaliere A, Cepparulo V, Pezone G, Schonauer F. Clavicle Fracture Site Surgical Contouring: A Case Report. Arch Plast Surg 2024; 51:67-71. [PMID: 38425849 PMCID: PMC10901599 DOI: 10.1055/s-0043-1775880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 09/01/2023] [Indexed: 03/02/2024] Open
Abstract
Clavicle fractures are frequent injuries accounting for approximately 4% of all fractures in adults with about 35% occurring in the shoulder region among which midshaft fractures are the most common (>66%). Nonsurgical management is the treatment of choice for most clavicle fractures; however, poor functional and aesthetic outcomes may result from nonunion, symptomatic malunion, and aesthetic impairment which are the most common complications. A young woman was referred to our clinic for a "Step Deformity" resulting after primary, nonsurgical treatment of a midshaft clavicle fracture. Residual deformity was corrected with a novel simple and little invasive approach. Midshaft clavicle fractures typically only require conservative nonsurgical treatment, nevertheless suboptimal outcomes may occur. Selective osteotomies and fixation are deemed too invasive when only cosmetic impairment of the clavicle contour is present without any functional or sensitive damage and most patients are discouraged from undergoing surgery. Thus far, no specific focus on this topic, nor exploration of possible correction can be found in the published literature. These residual deformities may be very noticeable sometimes and cause psychological distress and social life impairment. Despite no related functional impairment, this deformity should still be addressed, to improve patients' quality of life.
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Affiliation(s)
| | | | - Giuseppe Pezone
- Unit of Plastic Surgery, University “Federico II”, Naples, Italy
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Langenbrunner S, Müller CA. [Clavicle Fractures: Diagnosis and Choice of the Appropriate Therapeutic Procedure]. ZEITSCHRIFT FUR ORTHOPADIE UND UNFALLCHIRURGIE 2023; 161:683-699. [PMID: 38049095 DOI: 10.1055/a-1958-7147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/06/2023]
Abstract
Clavicle fractures are one of the most common injuries of the shoulder girdle. In addition to the targeted clinical examination, the appropriate imaging must be initiated to formulate the correct diagnosis and subsequently apply an appropriate therapeutic method. Indirect force impact in recreational and sports accidents, such as falling on the outstretched or adducted arm, is the most common accident mechanism. The prevalence shows a bipartite clustering. On the one hand, there are young male patients and, on the other hand, female patients from the age of 65. Thus, a heterogeneous patient population with different complication profiles and different functional demands presents itself.The demand for a stable and, as far as possible, anatomical restoration after clavicle fracture results from its function as the sole connection between the shoulder joint and the sternum. Conservative therapy was the standard procedure for a long time, but due to further development of surgical therapy is now frequently used. Pediatric clavicle fracture remains the domain of conservative therapy. Early functional exercise of the shoulder girdle is essential for outcome in both surgical and conservative therapy.
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Zhang D, Garg R, Elhassan B. 3D-printing assisted clavicle osteotomy for scapulothoracic abnormal motion: a case report. JSES REVIEWS, REPORTS, AND TECHNIQUES 2023; 3:553-556. [PMID: 37928983 PMCID: PMC10624991 DOI: 10.1016/j.xrrt.2023.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Affiliation(s)
- Dafang Zhang
- Department of Orthopaedic Surgery, Brigham and Women’s Hospital, Boston, MA, USA
- Mass General Brigham Brachial Plexus and Peripheral Nerve Center, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Rohit Garg
- Mass General Brigham Brachial Plexus and Peripheral Nerve Center, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, MA, USA
| | - Bassem Elhassan
- Mass General Brigham Brachial Plexus and Peripheral Nerve Center, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, MA, USA
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Hochreiter B, Saager LV, Zindel C, Calek AK, Stern C, Wieser K, Gerber C. Computer-assisted planning vs. conventional surgery for the correction of symptomatic mid-shaft clavicular nonunion and malunion. JSES Int 2023; 7:2321-2329. [PMID: 37969529 PMCID: PMC10638583 DOI: 10.1016/j.jseint.2023.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2023] Open
Abstract
Background The aim of this study was to compare the clinical and radiographic outcomes of treatment of symptomatic mal- and/or nonunion of midshaft clavicle fractures using radiographically based free-hand open reduction and internal fixation (ORIF) or computer-assisted 3D-planned, personalized corrective osteotomies performed using patient-specific instrumentation (PSI) and ORIF. The hypotheses were that (1) patients treated with computer-assisted planning and PSI would have a better clinical outcome, and (2) computer-assisted surgical planning would achieve a more accurate restoration of anatomy compared to the free-hand technique. Methods Between 1998 and 2020, 13 patients underwent PSI, and 34 patients underwent free-hand ORIF and/or corrective osteotomy. After application of exclusion criteria, 12/13 and 11/34 patients were included in the study. The clinical examination included measurement of the active range of motion and assessment of the absolute and relative Constant-Murley Scores and the subjective shoulder value. Subjective satisfaction with the cosmetic result was assessed on a Likert scale from 0 to 100 (subjective aesthetic value). 11/13 and 6/11 patients underwent postoperative computed tomography evaluation of both clavicles. Computed tomography scans were segmented to generate 3D surface models. After projection onto the mirrored contralateral side, displacement analysis was performed. Finally, bony union was documented. The average follow-up time was 43 months in the PSI and 50 months in the free-hand cohort. Results The clinical outcomes of both groups did not differ significantly. Median subjective shoulder value was 97.5% (70; 100) in the PSI group vs. 90% (0; 100) in the free-hand group; subjective aesthetic value was 86.4% (±10.7) vs. 75% (±18.7); aCS was 82.3 (±10.3) points vs. 74.9 (±26) points; and rCS was 86.7 (±11.3) points vs. 81.9 (±28.1) points. In the free-hand group, 2/11 patients had a postoperative neurological complication. In the PSI cohort, the 3D angle deviation was significantly smaller (PSI/planned vs. free-hand/contralateral: 10.8° (3.1; 23.8) vs. 17.4° (11.6; 42.4); P = .020)). There was also a trend toward a smaller 3D shift, which was not statistically significant (PSI/planned vs. free-hand/contralateral: 6 mm (3.4; 18.3) vs. 9.3 mm (5.1; 18.1); P = .342). There were no other significant differences. A bony union was achieved in all cases. Conclusion Surgical treatment of nonunion and malunions of the clavicle was associated with very good clinical results and a 100% union rate. This study, albeit in a relatively small cohort with a follow-up of 4 years, could not document any clinically relevant advantage of 3D planning and personalized operative templating over conventional radiographic planning and free-hand surgical fixation performed by experienced surgeons.
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Affiliation(s)
- Bettina Hochreiter
- Department of Orthopedics, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
| | - Laura Victoria Saager
- Department of Orthopedics, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
| | - Christoph Zindel
- Department of Orthopedics, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
| | - Anna-Katharina Calek
- Department of Orthopedics, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
| | - Christoph Stern
- Department of Radiology, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
| | - Karl Wieser
- Department of Orthopedics, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
| | - Christian Gerber
- Department of Orthopedics, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
- Balgrist Campus, Orthopaedic Research Center, Zürich, Switzerland
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Zaidenberg EE, Rossi LA, Francisco F, Tanoira I, Pasqualini I, Ranalletta M, Zaidenberg CR. Unicortical versus bicortical plate fixation for midshaft clavicular fractures. Injury 2023; 54 Suppl 6:110728. [PMID: 38143115 DOI: 10.1016/j.injury.2023.04.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 04/04/2023] [Accepted: 04/12/2023] [Indexed: 12/26/2023]
Abstract
BACKGROUND The aim of this study was to compare the functional and radiological outcomes of unicortical vs bicortical fixation in patients with midshaft clavicular fractures who were treated using pre-contoured locking plates. METHODS We performed a prospective multicenter study of 45 individuals who underwent open reduction and internal fixation of midshaft clavicular fractures with precontoured locking plates between March 2017 and December 2019. Twenty-five patients were treated with bicortical screws and 20 patients with unicortical screws. Functional outcomes were assessed at 6 months and 12 months after surgery using the Constant score, the 11-item version of the Disabilities of Arm, Shoulder and Hand (Quick- DASH) score and the Single Assessment Numeric Evaluation (SANE) score. Pain was evaluated using a visual analog scale (VAS). The rate of return to work and sports was also recorded. Radiologic evaluation was obtained in the immediate postoperative day, monthly until fracture consolidation, at 6 months and 12 months. All intraoperative and postoperative complications were documented. RESULTS At both 6 and 12 months, the follow-up rates were 100%, and the mean age was 28.5 years (range, 20 to 45 years). The mean postoperative Constant score, Quick DASH, and SANE score at 12 months were 93.5 (±6), 2.3 (±3), and 92% (±7), respectively. There were no significant differences in the functional scores between the groups neither at 6 months nor at 12 months. Of the 30 active workers, 97% were able to return to their previous working routine and from the 25 patients who practiced sports before the injury,92% returned to sports all at the same level. All the fractures healed in both groups. There were 6 complications (13%). CONCLUSION In young, active patients with displaced midshaft clavicular fractures, both unicortical and bicortical locked plates achieved 100% bone consolidation, with excellent functional outcomes and a low rate of complications without significant differences between the groups. Therefore, locked plates with unicortical fixation could be a very good alternative for the management of young patients with midshaft clavicular fractures, potentially avoiding severe neurovascular complications. LEVEL OF EVIDENCE Prospective comparative (Level II).
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Affiliation(s)
| | - Luciano Andrés Rossi
- Department of Orthopaedic Surgery, Hospital Italiano de Buenos Aires, Peron 4190 (C1199ABB), Buenos Aires, Argentina.
| | - Federico Francisco
- Anatomy Department, School of Medicine, University of Buenos Aires, Argentina
| | - Ignacio Tanoira
- Department of Orthopaedic Surgery, Hospital Italiano de Buenos Aires, Peron 4190 (C1199ABB), Buenos Aires, Argentina
| | - Ignacio Pasqualini
- Department of Orthopaedic Surgery, Hospital Italiano de Buenos Aires, Peron 4190 (C1199ABB), Buenos Aires, Argentina
| | - Maximiliano Ranalletta
- Department of Orthopaedic Surgery, Hospital Italiano de Buenos Aires, Peron 4190 (C1199ABB), Buenos Aires, Argentina
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Sahasrabhojanee AA, Mehendale AM, Gupta D, Gupta P, Kakar G. Malunion of a Clavicle Fracture in a Young Adult: A Case Report and Surgical Intervention. Cureus 2023; 15:e48202. [PMID: 38050501 PMCID: PMC10693678 DOI: 10.7759/cureus.48202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Accepted: 11/03/2023] [Indexed: 12/06/2023] Open
Abstract
This case study examines the medical complexity of managing a neglected clavicle in a young patient, resulting in a complicated interstitial non-union. Despite initial therapeutic efforts, the fracture was not treated, resulting in significant pain as well as functional and aesthetic disabilities. This case outlines accurate clinical presentation and diagnostic methods. In addition, malunion clavicle fractures require multifaceted therapeutic approaches including surgical interventions, rehabilitation programs, and psychological support. Through comprehensive research and long-term follow-up, this report reveals the complexity of traumatic fractures, highlighting the importance of early recognition and intervention. To address the issue effectively, it is essential to follow a multidisciplinary approach that includes physical assessment, pharmacotherapy, and physiotherapy. This case report aims to highlight the critical role of comprehensive individual care in improving the patient's condition and emphasizes the importance of vigilant healthcare practices.
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Affiliation(s)
- Abhiram A Sahasrabhojanee
- Medicine and Surgery, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Ashok M Mehendale
- Preventive and Social Medicine, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Dhananjay Gupta
- Orthopedics, Fortis Flt. Lt. Rajan Dhall Hospital, New Delhi, IND
| | - Pranav Gupta
- Medicine and Surgery, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Gauri Kakar
- Medicine and Surgery, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
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von Rüden C, Rehme-Röhrl J, Augat P, Friederichs J, Hackl S, Stuby F, Trapp O. Evidence on treatment of clavicle fractures. Injury 2023; 54 Suppl 5:110818. [PMID: 37217399 DOI: 10.1016/j.injury.2023.05.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 05/11/2023] [Accepted: 05/12/2023] [Indexed: 05/24/2023]
Abstract
Depending on the severity of the injury and the involvement of the soft tissue envelope, clavicle fractures can be treated operatively or non-operatively. In the past, displaced fractures of the clavicle shaft in adults have been treated non-operatively. However, the rate of nonunion following non-operative treatment seems to be higher than previously reported. In addition, publications reporting better functional outcomes following operative treatment are increasing. In recent years this has led to a paradigm shift towards an increase of operative fracture treatment. The aim of this review article was to summarize the currently available evidence on the treatment of clavicle fractures. Classifications, indications, and treatment options for different fracture patterns of the medial, midshaft, and lateral clavicles are presented and discussed.
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Affiliation(s)
- Christian von Rüden
- Department of Trauma Surgery, Orthopaedics and Hand Surgery, Weiden Medical Center, Weiden/ Oberpfalz, Germany; Department of Trauma Surgery, BG Unfallklinik Murnau, Murnau, Germany; Institute for Biomechanics, Paracelsus Medical University, Salzburg, Austria.
| | - Julia Rehme-Röhrl
- Department of Trauma Surgery, BG Unfallklinik Murnau, Murnau, Germany
| | - Peter Augat
- Institute for Biomechanics, Paracelsus Medical University, Salzburg, Austria; Institute for Biomechanics, BG Unfallklinik Murnau, Murnau, Germany
| | - Jan Friederichs
- Department of Trauma Surgery, BG Unfallklinik Murnau, Murnau, Germany
| | - Simon Hackl
- Department of Trauma Surgery, BG Unfallklinik Murnau, Murnau, Germany; Institute for Biomechanics, Paracelsus Medical University, Salzburg, Austria
| | - Fabian Stuby
- Department of Trauma Surgery, BG Unfallklinik Murnau, Murnau, Germany
| | - Oliver Trapp
- Department of Trauma Surgery, BG Unfallklinik Murnau, Murnau, Germany
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deMeireles AJ, Czerwonka N, Levine WN. Clavicle Nonunion and Malunion: Surgical Interventions for Functional Improvement. Clin Sports Med 2023; 42:663-675. [PMID: 37716729 DOI: 10.1016/j.csm.2023.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/18/2023]
Abstract
Clavicle nonunion and malunion are relatively uncommon but, when symptomatic, can result in pain and dysfunction that requires surgical intervention. Various reconstructive and grafting techniques are available to achieve stable fixation and union. In the setting of persistent nonunion, vascularized bone grafting may be necessary. A thorough understanding of the patient's type of nonunion and potential for healing is crucial for achieving satisfactory results because is thoughtful preoperative planning and surgical fixation.
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Affiliation(s)
- Alirio J deMeireles
- Department of Orthopedic Surgery, Columbia University Irving Medical Center-NewYork Presbyterian Hospital, New York, NY, USA
| | - Natalia Czerwonka
- Department of Orthopedic Surgery, Columbia University Irving Medical Center-NewYork Presbyterian Hospital, New York, NY, USA
| | - William N Levine
- Department of Orthopedic Surgery, Columbia University Irving Medical Center-NewYork Presbyterian Hospital, New York, NY, USA.
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11
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Biz C, Pozzuoli A, Belluzzi E, Scucchiari D, Bragazzi NL, Rossin A, Cerchiaro M, Ruggieri P. An Institutional Standardised Protocol for the Treatment of Acute Displaced Midshaft Clavicle Fractures (ADMCFs): Conservative or Surgical Management for Active Patients? Healthcare (Basel) 2023; 11:1883. [PMID: 37444717 PMCID: PMC10341159 DOI: 10.3390/healthcare11131883] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 06/20/2023] [Accepted: 06/26/2023] [Indexed: 07/15/2023] Open
Abstract
BACKGROUND AND OBJECTIVES The treatment of acute displaced midshaft clavicle fractures (ADMCFs) is still under debate. The aim of this study was to verify the effectiveness of our institutional protocol by comparing the clinical and radiographic outcomes of two groups of patients with ADMCFs treated operatively and non-operatively. MATERIALS AND METHODS active patients with a traumatic, isolated non-pathological ADMCF with at least 1-year clinical and radiographic follow up were included. Surgical treatment was performed in the cases where the residual displacement was higher than 140% after the application of a figure-of-eight bandage (F8-B). All other cases were treated conservatively with a F8-B. A total of 134 patients were enrolled and divided into two groups: surgical and conservative groups, with 59 and 75 patients, respectively. Radiological and clinical parameters were evaluated. RESULTS Good clinical (Constant-Murley Score, the Quick Disability of the Arm, Shoulder and Hand score, and VAS satisfaction) and radiographic outcomes (initial and residual shortening, initial and residual displacement) were obtained for ADMCFs in both groups. Multivariate analysis showed that patients treated conservatively had better clinical outcomes compared to surgically treated patients (p < 0.001). Return to sports was longer in those treated with surgery. Initial shortening was found to impact clinical outcomes as well as initial displacement. None of the patients showed signs of non-union in both groups. CONCLUSIONS Very good mid-term clinical results can be obtained in adult patients with ADMCFs, conservatively or operatively managed, by applying our institutional treatment protocol based on objective radiographic parameters evaluated in the ER.
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Affiliation(s)
- Carlo Biz
- Orthopedics and Orthopedic Oncology, Department of Surgery, Oncology and Gastroenterology DiSCOG, University-Hospital of Padova, Via Giustiniani 3, 35128 Padova, Italy
- Centre for Mechanics of Biological Materials, University of Padova, 35131 Padova, Italy
| | - Assunta Pozzuoli
- Orthopedics and Orthopedic Oncology, Department of Surgery, Oncology and Gastroenterology DiSCOG, University-Hospital of Padova, Via Giustiniani 3, 35128 Padova, Italy
- Centre for Mechanics of Biological Materials, University of Padova, 35131 Padova, Italy
- Musculoskeletal Pathology and Oncology Laboratory, Department of Surgery, Oncology and Gastroenterology, University of Padova, Via Giustiniani 3, 35128 Padova, Italy
| | - Elisa Belluzzi
- Orthopedics and Orthopedic Oncology, Department of Surgery, Oncology and Gastroenterology DiSCOG, University-Hospital of Padova, Via Giustiniani 3, 35128 Padova, Italy
- Centre for Mechanics of Biological Materials, University of Padova, 35131 Padova, Italy
- Musculoskeletal Pathology and Oncology Laboratory, Department of Surgery, Oncology and Gastroenterology, University of Padova, Via Giustiniani 3, 35128 Padova, Italy
| | - Davide Scucchiari
- Orthopedics and Orthopedic Oncology, Department of Surgery, Oncology and Gastroenterology DiSCOG, University-Hospital of Padova, Via Giustiniani 3, 35128 Padova, Italy
| | - Nicola Luigi Bragazzi
- Laboratory for Industrial and Applied Mathematics (LIAM), Department of Mathematics and Statistics, York University, Toronto, ON M3J 1P3, Canada
| | - Alessandro Rossin
- Orthopedics and Orthopedic Oncology, Department of Surgery, Oncology and Gastroenterology DiSCOG, University-Hospital of Padova, Via Giustiniani 3, 35128 Padova, Italy
| | - Mariachiara Cerchiaro
- Orthopedics and Orthopedic Oncology, Department of Surgery, Oncology and Gastroenterology DiSCOG, University-Hospital of Padova, Via Giustiniani 3, 35128 Padova, Italy
| | - Pietro Ruggieri
- Orthopedics and Orthopedic Oncology, Department of Surgery, Oncology and Gastroenterology DiSCOG, University-Hospital of Padova, Via Giustiniani 3, 35128 Padova, Italy
- Centre for Mechanics of Biological Materials, University of Padova, 35131 Padova, Italy
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Williams A, Miniato M, Pasquinelly A, Gillette M, Sanford C, Graves M. Intercalary Tricortical Iliac Crest Graft for Treatment of Midclavicle Nonunion With Bone Loss: Two Case Reports and Review of Literature. Cureus 2023; 15:e40265. [PMID: 37440817 PMCID: PMC10335879 DOI: 10.7759/cureus.40265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/11/2023] [Indexed: 07/15/2023] Open
Abstract
Several articles support the use of cancellous iliac crest bone grafting in the treatment of clavicle nonunion; however, there is very little literature on the use of tricortical iliac crest grafts in the setting of clavicle nonunion with bone loss. When it has been studied, tricortical grafting has been shown to produce radiologically confirmed union in the clavicle, leaving patients satisfied with the ultimate outcome. We present two cases of clavicle fracture nonunion successfully treated with tricortical interposition bone grafting. In the first case, a 45-year-old female presented with an atrophic left midshaft clavicle fracture nonunion with failed hardware that had undergone two previous attempts at fixation without achieving union. She was treated with a structural interposition iliac crest bone graft with plate fixation and regained full painless function of the arm with radiographic fracture union. In the second case, a 50-year-old male presented after a left midshaft clavicle fracture that had undergone acute stabilization, followed by revision for nonunion that was unsuccessful, resulting in persistent nonunion with bone loss. He was treated with a tricortical iliac crest bone graft and plate fixation. Cultures from the time of surgery did grow Staphylococcus epidermidis and Propionibacterium acnes, and he was treated with intravenous vancomycin for six weeks. The patient's clavicle went on to union and he regained full, painless function by his six-month follow-up visit. These cases demonstrate the use of tricortical interposition bone grafting with compression plating as a viable option for rare instances in which previous surgical intervention has failed to progress a midshaft clavicle fracture to union.
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Affiliation(s)
- Austin Williams
- Department of Orthopedic Surgery, The University of Toledo College of Medicine and Life Sciences, Toledo, USA
| | - Mohammed Miniato
- Department of Anesthesiology, Baylor College of Medicine, Houston, USA
| | - Adam Pasquinelly
- Department of Orthopedic Surgery, The University of Toledo College of Medicine and Life Sciences, Toledo, USA
| | - Marshall Gillette
- Department of Orthopedic Surgery, University of Mississippi Medical Center, Jackson, USA
| | - Christopher Sanford
- Department of Orthopedic Surgery, The University of Toledo College of Medicine and Life Sciences, Toledo, USA
| | - Matthew Graves
- Department of Orthopedic Surgery, University of Mississippi Medical Center, Jackson, USA
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13
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Furuhata R, Yokoyama Y, Tanji A, Fujita S. Plate fixation using parallelogram prism iliac bone grafts for clavicle oblique nonunion with shortening deformity: a case report. BMC Musculoskelet Disord 2023; 24:346. [PMID: 37143033 PMCID: PMC10157972 DOI: 10.1186/s12891-023-06468-w] [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: 12/15/2022] [Accepted: 04/27/2023] [Indexed: 05/06/2023] Open
Abstract
BACKGROUND Plate fixation using a tricortical iliac bone graft can provide a high ratio of bone union and restore clavicle length in cases of atrophic nonunion. However, the surgical treatment of clavicle oblique nonunions with marked shortening deformity remains challenging and unresolved. Here, we describe a case of clavicle oblique nonunion with shortening that was treated using plate fixation with parallelogram prism iliac bone grafts. CASE PRESENTATION A 46-year-old man presented to our hospital with severe medial scapular pain. He had been diagnosed with a right clavicle mid-shaft fracture in a motorcycle accident 9 months earlier. He underwent conservative treatment, but radiographs and computed tomography showed clavicle oblique nonunion with marked shortening. Physical examination revealed no pain at the nonunion site; however, tenderness was noted on the medial side of the right scapula and protrusion of the inferior scapular angle was prominent. His symptoms interfered with daily life and required surgery. After release of the nonunion, we harvested the parallelogram prism bone grafts from the iliac crest. We inserted these bone grafts into the fracture ends and fixed them with lag screws, after which we performed plate fixation. Immediately after surgery, right medial scapular pain and scapula winging subsided. Bone union was achieved, and the length of the clavicle was restored at 9 months postoperatively. CONCLUSIONS This case report provides new information on the surgical treatment of clavicle oblique nonunion with shortening deformity. The presence of medial scapular pain and winging scapula can be clinically problematic in cases of clavicle nonunion with marked shortening. Our case revealed that reliable bone union and clavicle length recovery can be achieved with plate fixation and iliac bone grafts.
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Affiliation(s)
- Ryogo Furuhata
- Department of Orthopaedic Surgery, Ashikaga Red Cross Hospital, 284-1 Yobe-cho, Ashikaga, 326-0843, Tochigi, Japan.
| | - Yuya Yokoyama
- Department of Orthopaedic Surgery, Ashikaga Red Cross Hospital, 284-1 Yobe-cho, Ashikaga, 326-0843, Tochigi, Japan
| | - Atsushi Tanji
- Department of Orthopaedic Surgery, Ashikaga Red Cross Hospital, 284-1 Yobe-cho, Ashikaga, 326-0843, Tochigi, Japan
| | - Shota Fujita
- Department of Orthopaedic Surgery, Ashikaga Red Cross Hospital, 284-1 Yobe-cho, Ashikaga, 326-0843, Tochigi, Japan
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14
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Patel M, Heyworth BE, Dehghan N, Mehlman CT, McKee MD. Clavicular Fractures in the Adolescent. J Bone Joint Surg Am 2023; 105:713-723. [PMID: 36753567 DOI: 10.2106/jbjs.22.01036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
➤ Current evidence suggests that the majority of clavicular fractures in adolescents can and should be treated nonoperatively. ➤ Although rare, in certain patients or fracture patterns, nonoperative management may be associated with delayed healing, prolonged disability, and/or poor functional outcome requiring secondary reconstruction. ➤ When warranted, primary open reduction and internal fixation with plate and screw application has consistently good outcomes with a low complication rate, with the most common complication being implant-related symptoms requiring a secondary surgical procedure for implant removal. ➤ Prospective, comparative studies examining operative and nonoperative treatment, including measures of early return to function, injury burden, return to athletic activity, complication and reoperation rates, and shoulder-girdle-specific, long-term outcome measures are warranted to further elucidate which fractures may benefit from primary fixation.
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Affiliation(s)
- Midhat Patel
- Department of Orthopedics, University of Arizona College of Medicine-Phoenix, Phoenix, Arizona
| | - Benton E Heyworth
- Division of Sports Medicine, Boston Children's Hospital, Boston, Massachusetts
| | | | - Charles T Mehlman
- Division of Pediatric Orthopaedic Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Michael D McKee
- Department of Orthopedics, University of Arizona College of Medicine-Phoenix, Phoenix, Arizona
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15
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Xue C, Zheng X, Song L, Li X, Fang J. Triple Endobutton technique for the treatment of Neer type II lateral clavicle fractures: 2-year findings. J Shoulder Elbow Surg 2022; 32:1051-1057. [PMID: 36442829 DOI: 10.1016/j.jse.2022.10.024] [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: 05/19/2022] [Revised: 10/11/2022] [Accepted: 10/20/2022] [Indexed: 11/27/2022]
Abstract
BACKGROUND Although various kinds of operative procedures have been reported in the literature, there is still no undisputed gold standard technique for the treatment of Neer type II lateral clavicle fractures. This trauma is classified as a bone fracture, but it is primarily a ligamentous problem due to the instability it generates. This study analyzed the clinical and radiological results of treatment for Neer type II lateral clavicle fractures using the triple Endobutton (Smith & Nephew) technique in 20 patients with at least 2 years of follow-up. METHODS This study enrolled 20 patients with Neer type II distal clavicle fractures who underwent the triple Endobutton technique using 3 Endobuttons (1 with a closed loop and 2 without) and 3 No. 5 Ethibond sutures (Ethicon Inc.) from October 2017 to May 2020. Patients were assessed with clinical and radiological follow-up at 3, 6, 12, and 24 months postoperatively. Clinical assessments consisted of the visual analog scale and the Constant score. Radiological evaluation was achieved by measuring the coracoclavicular distance. RESULTS The mean follow-up was 35 ± 9 months (range, 24-55 months). The visual analog scale and Constant scores revealed significant improvements from 6 ± 1 (range, 4-8) and 42 ± 4 (range, 35-48) scores preoperatively to 1 ± 1 (range, 0-1) and 94 ± 2 (range, 90-98) scores at the final evaluation, respectively (P < .001). The coracoclavicular distance of the injured side was an average of 9 ± 1 mm (range, 7-12 mm) at the final follow-up radiograph which was not significantly different from that of the contralateral side (P = .75). CONCLUSIONS In this study, the triple Endobutton technique was a safe, reliable, and novel surgical technique that yielded good to excellent short-term clinical and radiological outcomes for the treatment of Neer type II distal clavicle fractures.
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Affiliation(s)
- Cheng Xue
- Department of Orthopedics, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, People's Republic of China
| | - Xingguo Zheng
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - Lijun Song
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - Xiang Li
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - Jiahu Fang
- Department of Orthopedics, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China.
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16
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Baren JP, Rowbotham E, Robinson P. Acromioclavicular Joint Injury and Repair. Semin Musculoskelet Radiol 2022; 26:597-610. [DOI: 10.1055/s-0042-1750726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
AbstractThe acromioclavicular (AC) joint is commonly injured in athletes participating in contact and overhead throwing sports. Injuries range from simple sprains to complete ligamentous disruption, and they are classified by the established Rockwood grading system. High-grade injuries are associated with fractures around the AC joint and disruption of the superior shoulder suspensory complex, a ring of osseous and ligamentous structures at the superior aspect of the shoulder. Radiographs are the mainstay of imaging of the AC joint, with magnetic resonance imaging reserved for high-grade injuries to aid classification and plan surgical management. Low-grade AC joint injuries tend to be managed conservatively, but a wide range of surgical procedures have been described for higher grade injuries and fractures around the AC joint. This review illustrates the anatomy of the AC joint and surrounding structures, the imaging features of AC joint injury, and the most commonly performed methods of reconstruction and their complications.
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Affiliation(s)
- James P. Baren
- Department of Musculoskeletal Radiology, Leeds Teaching Hospitals, Leeds, United Kingdom
| | - Emma Rowbotham
- Department of Musculoskeletal Radiology, Leeds Teaching Hospitals, Leeds, United Kingdom
- NIHR Leeds Biomedical Research Centre, Leeds Teaching Hospitals Trust, University of Leeds, Leeds, United Kingdom
| | - Philip Robinson
- Department of Musculoskeletal Radiology, Leeds Teaching Hospitals, Leeds, United Kingdom
- NIHR Leeds Biomedical Research Centre, Leeds Teaching Hospitals Trust, University of Leeds, Leeds, United Kingdom
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17
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Biz C, Scucchiari D, Pozzuoli A, Belluzzi E, Bragazzi NL, Berizzi A, Ruggieri P. Management of Displaced Midshaft Clavicle Fractures with Figure-of-Eight Bandage: The Impact of Residual Shortening on Shoulder Function. J Pers Med 2022; 12:759. [PMID: 35629181 PMCID: PMC9145303 DOI: 10.3390/jpm12050759] [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: 03/15/2022] [Revised: 05/03/2022] [Accepted: 05/06/2022] [Indexed: 02/06/2023] Open
Abstract
The treatment of displaced midshaft clavicle fractures (MCFs) is still controversial. The aims of our study were to evaluate clinical and radiological outcomes and complications of patients with displaced MCFs managed nonoperatively and to identify potential predictive factors of worse clinical outcomes. Seventy-five patients with displaced MCFs were enrolled and treated nonoperatively with a figure-of-eight bandage (F8-B). Initial shortening (IS) and displacement (ID) of fragments were radiographically evaluated at the time of diagnosis and immediately after F8-B application by residual shortening (RS) and displacement (RD). The clavicle shortening ratio was evaluated clinically at last follow-up. Functional outcomes were assessed using Constant (CS), q-DASH, DASH work and DASH sport scores. Cosmetic outcomes and rate of complications were evaluated. Good to very good mid-term clinical results were achieved by using the institutional treatment protocol. Multiple regression identified RS as an independent predictor of shoulder function, while RD affects fracture healing. These findings support the efficacy of our institutional protocol and thus could be useful for orthopedic surgeons during the decision-making process.
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Affiliation(s)
- Carlo Biz
- Orthopedics and Orthopedic Oncology, Department of Surgery, Oncology and Gastroenterology DiSCOG, University of Padova, Via Giustiniani 3, 35128 Padova, Italy; (C.B.); (D.S.); (E.B.); (P.R.)
| | - Davide Scucchiari
- Orthopedics and Orthopedic Oncology, Department of Surgery, Oncology and Gastroenterology DiSCOG, University of Padova, Via Giustiniani 3, 35128 Padova, Italy; (C.B.); (D.S.); (E.B.); (P.R.)
| | - Assunta Pozzuoli
- Orthopedics and Orthopedic Oncology, Department of Surgery, Oncology and Gastroenterology DiSCOG, University of Padova, Via Giustiniani 3, 35128 Padova, Italy; (C.B.); (D.S.); (E.B.); (P.R.)
- Musculoskeletal Pathology and Oncology Laboratory, Department of Surgery, Oncology and Gastroenterology, University of Padova, Via Giustiniani 3, 35128 Padova, Italy
| | - Elisa Belluzzi
- Orthopedics and Orthopedic Oncology, Department of Surgery, Oncology and Gastroenterology DiSCOG, University of Padova, Via Giustiniani 3, 35128 Padova, Italy; (C.B.); (D.S.); (E.B.); (P.R.)
- Musculoskeletal Pathology and Oncology Laboratory, Department of Surgery, Oncology and Gastroenterology, University of Padova, Via Giustiniani 3, 35128 Padova, Italy
| | - Nicola Luigi Bragazzi
- Laboratory for Industrial and Applied Mathematics (LIAM), Department of Mathematics and Statistics, York University, Toronto, ON M3J 1P3, Canada;
| | - Antonio Berizzi
- Orthopedics and Orthopedic Oncology, Department of Surgery, Oncology and Gastroenterology DiSCOG, University of Padova, Via Giustiniani 3, 35128 Padova, Italy; (C.B.); (D.S.); (E.B.); (P.R.)
| | - Pietro Ruggieri
- Orthopedics and Orthopedic Oncology, Department of Surgery, Oncology and Gastroenterology DiSCOG, University of Padova, Via Giustiniani 3, 35128 Padova, Italy; (C.B.); (D.S.); (E.B.); (P.R.)
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18
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Peters J, Singh G, Hakobyan H. Surgical Treatment of Clavicular Fractures, Refractures, Delayed and Non-Unions Using a Resorbable, Gentamicin-Eluting Calcium Sulphate/Hydroxyapatite Biocomposite. Ther Clin Risk Manag 2022; 18:551-560. [PMID: 35586156 PMCID: PMC9109884 DOI: 10.2147/tcrm.s361006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 04/26/2022] [Indexed: 11/23/2022] Open
Abstract
Objective This study describes clinical and radiological outcomes following treatment of displaced primary fractures, refractures, delayed unions and non-unions of the clavicle with open reduction and internal fixation (ORIF) with a plate plus filling of the residual bone defect and/or implant augmentation with a gentamicin-loaded bone graft substitute (CERAMENT G, BONESUPPORT). Patients and Methods Patients who underwent surgical treatment either for displaced clavicle fractures, refractures, delayed unions or non-unions between June 2018 and May 2021 were enrolled in this retrospective study. Bony consolidation, complication rate, and functional outcomes, including overall health, were assessed. Results A total of 26 clavicles in 25 patients with a mean age of 50.7 (16–85) years, 16 male and 9 female, were enrolled in the study. The mean follow-up was 14.9 (6–31) months. There were 18 cases of displaced clavicle fractures, four refractures, two delayed unions and two non-unions. The majority of the clavicle lesions were located at the middle third (17/26, 65.4%), seven at the lateral third (26.9%) and two at the medial third (7.7%) of the clavicle. A mean Goldberg score of 7 indicated complete bony union and remodeling of the bone graft substitute in all cases. No complications occurred. The mean University of California at Los Angeles Shoulder Score and the mean Quick Disability of the Arm, Shoulder and Hand Score were 34.6±0.8 (32–35) points and 0.6±1.6 (0–5.4) points, respectively, and revealed excellent functional results. The mean 12-item Short-Form Survey physical component questionnaire was 57.7±1.7 (54.1–58.9) points, and no patient experienced any pain at the last follow-up. Conclusion Our initial experience suggests that ORIF using a plate plus bone defect filling and/or implant augmentation with a gentamicin-eluting bone graft substitute may be useful not only for complication management after clavicle fractures but also in the initial treatment of challenging clavicular fractures.
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Affiliation(s)
- Jens Peters
- Department of Trauma Surgery and Orthopaedics, Clinic Sulingen, Sulingen, Lower Saxony, 27232, Germany
- Correspondence: Jens Peters, Department of Trauma Surgery and Orthopaedics, Clinic Sulingen, Schmelingstrasse 47, Sulingen, Lower Saxony, 27232, Germany, Tel +49 4271 82 33210, Fax +49 4271 82 33212, Email
| | - Gurdeep Singh
- Department of Trauma Surgery and Orthopaedics, Clinic Sulingen, Sulingen, Lower Saxony, 27232, Germany
| | - Hrayr Hakobyan
- Department of Trauma Surgery and Orthopaedics, Clinic Sulingen, Sulingen, Lower Saxony, 27232, Germany
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Safe and Effective Treatment of Compromised Clavicle Fracture of the Medial and Lateral Third Using Focused Shockwaves. J Clin Med 2022; 11:jcm11071988. [PMID: 35407594 PMCID: PMC8999686 DOI: 10.3390/jcm11071988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 03/27/2022] [Accepted: 03/31/2022] [Indexed: 11/17/2022] Open
Abstract
A delay or failure to heal is the most common possible complication in clavicle fractures, especially in cases primarily treated conservatively. As the current standard therapy, surgical revision achieves good healing results, but is associated with potential surgery-related complications. Shockwave therapy as a non-invasive therapy shows similar reasonable consolidation rates in the non-union of different localizations, but avoids complications. Compromised clavicle fractures in the middle and lateral third treated with focused high-energy shockwave therapy were compared with those treated with surgical revision (ORIF). In addition, a three-dimensional computer simulation for evaluating the pressure distribution during shockwave application accompanied the clinical study. A comparable healing rate in bony consolidation was achieved in both groups. Significantly fewer complications, however, occurred in the shockwave group. The simulations showed safe application in this instance, particularly in avoiding lung tissue affection. When applied correctly, shockwaves represent a safe and promising therapy option for compromised clavicle fractures in the middle and lateral third.
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20
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Hwang JS, Kim MB, Lee YH. Radiographic and Clinical Outcomes of Non-Operative Treatment for Patients with Non-Union of Fractures of the Mid-Shaft of the Clavicle in Adults. J Hand Surg Asian Pac Vol 2022; 27:68-75. [PMID: 35135419 DOI: 10.1142/s2424835522500205] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Background: Non-unions of clavicle fracture after conservative treatment have been treated surgically, but carry a risk of complications. The aim of this study is to report the outcomes of non-operative treatment for patients with non-union of fractures of the mid-shaft of the clavicle following initial conservative treatment. Methods: This is a retrospective study done at a single centre. Subjects with non-union after conservative treatment of clavicle mid-shaft fractures between March 2004 and February 2019 were included in this study. The exclusion criteria included follow-up period <1 year after the diagnosis of non-union and concomitant upper extremity injury. Final radiographs were assessed for fracture healing, vertical displacement, and shortening. Visual analog scale (VAS) pain scores, shoulder range of motion (ROM) and self-rated outcomes were obtained. Results: Fourteen patients (five females) with an average age of 58 (range, 29-76) years and a mean follow-up duration of 4.0 (range, 1.5-10.2) years were included in the study. The average vertical fracture displacement was 188.7 (range, 95.4-301.4) percent and the average shortening was 13.2 (range, 2.7-16.9) percent. The average VAS pain score was 0.21 (range, 0-2) points. There was no significant difference in the ROM between the injured and uninjured shoulder (p = 0.715 for forward flexion, 0.070 for abduction and 0.714 for external rotation) and the Constant shoulder score (p = 0.190). Thirteen of the 14 patients were satisfied with the treatment, and 12 returned to their pre-injury level of sports participation. Conclusions: Non-operative treatment resulted in a favourable outcome for patients with non-union of clavicle fracture after conservative treatment. Self-rated outcome score was excellent, regardless of the presence of radiographic abnormalities. Level of Evidence: Level IV (Therapeutic).
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Affiliation(s)
- Ji Sup Hwang
- Seoul National University Hospital, Seoul, Republic of Korea.,
| | - Min Bom Kim
- Seoul National University Hospital, Seoul, Republic of Korea.,
| | - Young Ho Lee
- Seoul National University Hospital, Seoul, Republic of Korea.,
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21
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Shah N, Dar N, Rashid B. Nonunion of clavicle treated with precontoured locking compression plate fixation and bone grafting: A long-term outcome. JOURNAL OF ORTHOPAEDIC DISEASES AND TRAUMATOLOGY 2022. [DOI: 10.4103/jodp.jodp_2_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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22
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Abstract
Background Plate fixation is the treatment of choice for a midshaft clavicle non-union. Those non-unions that require >1 surgical procedure to heal are termed recalcitrant non-union. Regardless of the number of previously failed procedures, our surgical strategy is aimed at achieving an optimal mechanical and biological environment to facilitate healing. Materials and methods We performed a retrospective analysis of 14 patients with a recalcitrant clavicle non-union treated with open reduction and plate fixation combined with graft augmentation when indicated. Healing rates after index surgery were analysed. All patients were observed for at least 12 months. Results All patients healed at a mean time of 193.2 days (range 90-390). Five of the 14 patients had at least one positive surprise culture, for which they received antibiotic treatment. At the latest follow-up, no patient reported pain or discomfort. Mean disability of the arm, shoulder and hand (DASH) score was 16.3 points (range 0-40), indicating only mild residual impairment. A possible link was found between the time between injury and definitive surgery and the time to healing [Pearson correlation 0.527, sig. (two-tailed) 0.000]. Conclusion This study shows 100% bone healing and good functional outcomes after surgical revision for a recalcitrant clavicle non-union. How to cite this article Grewal S, Baltes TPA, Wiegerinck E, et al. Treatment of a Recalcitrant Non-union of the Clavicle. Strategies Trauma Limb Reconstr 2022;17(1):1-6.
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Affiliation(s)
- Simran Grewal
- Department of Orthopaedic Surgery, Amsterdam UMC, University of Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Thomas PA Baltes
- Department of Orthopaedic Surgery, Amsterdam UMC, University of Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Esther Wiegerinck
- Department of Orthopaedic and Trauma Surgery, Tergooi Hospital, Hilversum, The Netherlands
| | - Peter Kloen
- Department of Orthopaedic Surgery, Amsterdam UMC, University of Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
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23
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Functional outcomes and complications following combined locking plate and tunneled suspensory device fixation of lateral-end clavicle nonunions. J Shoulder Elbow Surg 2021; 30:2570-2576. [PMID: 33894366 DOI: 10.1016/j.jse.2021.03.151] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/20/2021] [Accepted: 03/28/2021] [Indexed: 02/01/2023]
Abstract
BACKGROUND Lateral-end clavicle fractures have a high rate of nonunion that can lead to ongoing pain and loss of shoulder function. The operative techniques used to manage such nonunions vary, and data on postoperative functional outcomes and complications are limited, with no consensus on the optimal surgical treatment. Our goal was to present the outcomes and complications of a new indication for combined locking plate and tunneled suspensory device fixation in the operative management of lateral-end clavicle fracture nonunions. METHODS A consecutive series of 38 patients (mean age, 46 years; age range, 24-76 years) with symptomatic lateral-end clavicle nonunions underwent operative treatment using a new technique of anatomic locking plate combined with open reduction and tunneled suspensory device fixation between March 2011 and September 2019. Patients were assessed at a minimum of 1-year postoperative follow-up for patient-reported outcomes, range of motion, and complications. RESULTS All patients (N = 38) achieved bony union after operative treatment. Functional outcomes were available for 34 patients. The mean Oxford Shoulder Score was 44 (standard error of the mean [SEM], 0.7), and the mean EQ-5D-3L index score was 0.784 (SEM, 0.033). Mean forward flexion was 176° (SEM, 3°); mean extension, 53° (SEM, 3°); mean combined abduction, 171° (SEM, 4°); mean internal rotation, 57° (SEM, 2°); and mean external rotation, 83° (SEM, 4°). In 2 patients (5.3%), metalwork (plate) removal was performed owing to plate prominence. CONCLUSIONS Nonunion of lateral-end clavicle fractures can be effectively managed by combined plate and open reduction-tunneled suspensory device fixation. Excellent union rates and functional outcomes, as well as low complication rates, can be expected. The most significant complication of this technique is subsequent metalwork removal.
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Addition of Bone Marrow Aspirate Concentrate Resulted in High Rate of Healing and Good Functional Outcomes in the Treatment of Clavicle Fracture Nonunion: A Retrospective Case Series. J Clin Med 2021; 10:jcm10204749. [PMID: 34682872 PMCID: PMC8541197 DOI: 10.3390/jcm10204749] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 10/04/2021] [Accepted: 10/14/2021] [Indexed: 12/19/2022] Open
Abstract
Bone marrow aspirate concentrate (BMAC) is an autologous cell composition that is obtained through a needle aspiration from the iliac crest. The purpose of this study was to evaluate the outcomes of patients treated with open reduction and internal fixation with BMAC supplementation for clavicle fracture nonunion. This was a retrospective case series of 21 consecutive patients with clavicle fracture nonunion that were treated with ORIF and BMAC supplementation between 2013 and 2020. Patients were evaluated for fracture union, time to union, complications related to surgical and donor site, and functional outcome using the Quick Disability of the Arm Shoulder and Hand (QDASH), subjective shoulder value (SSV), and pain. The mean age was 41.8 years. The mean follow-up was 36 months. Twenty (95.2%) patients demonstrated fracture union, with a mean time to union of 4.5 months. Good functional scores were achieved: SSV, 74.3; QDASH, 23.3; pain level, 3.1. There were no complications or pain related to the iliac crest donor site. Supplementary BMAC to ORIF in the treatment of clavicle fracture nonunion is a safe method, resulting in high rates of fracture union and good functional outcomes with minimal complications and pain.
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Menor Fusaro F, Di Felice Ardente P, Pérez Abad M, Yanguas Muns C. Three-dimensional imaging, modeling, and printing in the correction of a complex clavicle malunion. JSES Int 2021; 5:729-733. [PMID: 34223422 PMCID: PMC8246001 DOI: 10.1016/j.jseint.2021.04.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Fracture nonunion in long bones: A literature review of risk factors and surgical management. Injury 2021; 52 Suppl 2:S3-S11. [PMID: 33221036 DOI: 10.1016/j.injury.2020.11.029] [Citation(s) in RCA: 84] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 11/06/2020] [Accepted: 11/10/2020] [Indexed: 02/02/2023]
Abstract
Nonunion following a long bone fracture causes considerable morbidity when it occurs. Risk factors depend on specific fractures but there is a complex interplay of injury severity, comorbidities, patient medication and infection. The majority of nonunions occur after long bone fractures with the tibia, femur, forearm, humerus and clavicle predominating. Despite interest in the biological augmentation of fracture healing, the majority of nonunions can be effectively managed with conventional surgical techniques. In this review we present a review of risk factors for nonunion and the outcome following surgical management.
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Osteosynthesis with autologous dual bone graft for nonunion of midshaft clavicle fractures: clinical and radiological outcomes. EUROPEAN JOURNAL OF ORTHOPAEDIC SURGERY AND TRAUMATOLOGY 2021; 32:159-165. [PMID: 33763769 DOI: 10.1007/s00590-021-02904-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 02/08/2021] [Indexed: 10/21/2022]
Abstract
PURPOSE This study evaluated the clinical and radiological results of plate osteosynthesis with autologous cortical and cancellous bone graft for nonunion of midshaft clavicle fracture. METHODS A retrospective review was performed for all patients who underwent surgery for midshaft clavicle nonunion at a Level I trauma center. Visual analog scales (VAS) for pain and Quick-DASH (Disabilities of Arm, Shoulder, and Hand) score were assessed. Bone union rate, change in length of affected clavicle, complications, and reoperation were determined. Risk factors were identified to determine the effect on the healing. RESULTS Thirty-four patients were included for analysis. All patients achieved solid bone union at mean 16 weeks (range 8-36) after surgery. The mean shortening of affected clavicle decreased significantly postoperatively (P < 0.001). There was significant improvement in both pain VAS and Quick-DASH score (P < 0.001). There was no wound complication, infection, or major neurovascular injury. Ten patients (29%) complained of plate irritation and underwent removal of implant without any subsequent adverse event. Multiple regression analysis demonstrated that high-energy trauma and previous surgery were the independent risk factors that significantly delayed time to union (P < 0.05). CONCLUSION Osteosynthesis with autologous dual bone graft for nonunion of midshaft clavicle produced an excellent union rate with good clinical outcome and minimal complications.
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STORTI THIAGOMEDEIROS, CAMILO MAURÍCIOSIQUEIRA, SILVA RAFAELFRANCISCOALVES, FARIA RAFAELSALOMONSILVA, SIMIONATTO CAROLINALIMA, PANIAGO ALEXANDREFIRMINO. CLINICAL EVALUATION OF THE TREATMENT OF CLAVICLE FRACTURES: INTRAMEDULLARY NAIL × PLATE. ACTA ORTOPEDICA BRASILEIRA 2021; 29:34-38. [PMID: 33795967 PMCID: PMC7976870 DOI: 10.1590/1413-785220212901231439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Objective: Studies confirm the benefit of surgical treatment for fixation of displaced midshaft clavicle fractures. Plate fixation and intramedullary nail are the two most used techniques. Our study seeks to compare these two surgical techniques. Methods: This is a retrospective study, conducted by the evaluation of patients treated for displaced midshaft clavicle fracture with intramedullary nail, and plate and screws. Socioeconomic variables were collected, a visual pain scale questionnaire was applied, the shoulder function was measured using CONSTANT and UCLA scores, and radiography was performed to verify the consolidation and evaluation of the final clavicle shortening. Results: Sixty-five patients were evaluated, 36 (55.4%) of which were subjected to clavicle fixation with plate and screws and 29 (44.6%) with intramedullary nail. The median shortening was 0.1mm for plate and 5.8mm for nail (p = 0.001). The UCLA score shows an average of 35 in the plate group and 35 in the intramedullary group. The median CONSTANT scores were 96.5 for plate and 95 for nail, without significance. In all groups, 13 (20%) complications were registered, 9 fixed with plate and 4 fixed with intramedullary nail. The most common complication was skin erosion with exposure of the synthetic material. Conclusion: The two techniques present satisfactory results for the treatment of displaced midshaft clavicle fractures. Level of Evidence III, Therapeutic Studies Investigating the Results of Treatment.
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Affiliation(s)
- THIAGO MEDEIROS STORTI
- Instituto do Ombro de Brasília, Brazil; Hospital Ortopédico e Medicina Especializada, Brazil
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Tenpenny W, Caldwell PE, Rivera-Rosado E, Pearson SE. Arthroscopic-Assisted Bone Graft Harvest From the Proximal Humerus for Distal Third Clavicle Fracture Nonunion. Arthrosc Tech 2020; 9:e1937-e1942. [PMID: 33381403 PMCID: PMC7768109 DOI: 10.1016/j.eats.2020.08.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 08/20/2020] [Indexed: 02/03/2023] Open
Abstract
Clavicle fracture nonunion can lead to persistent pain and loss of shoulder function. Distal clavicle fractures have the greatest risk of nonunion and are often treated surgically. Bone grafting plays a vital role in the treatment of distal clavicle nonunion. Although multiple options for bone graft exist, the iliac crest has long been considered the gold standard for harvest. Despite its extensive use, multiple complications have been associated with iliac crest bone graft harvest. We advocate a surgical technique for arthroscopic bone graft harvest from the proximal humerus with open reduction and internal fixation of an ipsilateral distal clavicle nonunion.
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Affiliation(s)
| | - Paul E. Caldwell
- Orthopaedic Research of Virginia, Richmond, Virginia, U.S.A.,Tuckahoe Orthopaedic Associates, Ltd., Richmond, Virginia, U.S.A.,Address correspondence to Paul E. Caldwell, III, M.D., 1501 Maple Ave., Suite 200, Richmond, VA 23226.
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Jang ES, Park CN, Levine WN, Popkin CA. A Current Concepts Review of Clavicle Injuries in Ice Hockey From Sternoclavicular to Acromioclavicular Joint. Orthop J Sports Med 2020; 8:2325967120951413. [PMID: 33029542 PMCID: PMC7520938 DOI: 10.1177/2325967120951413] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 04/06/2020] [Indexed: 11/16/2022] Open
Abstract
Clavicle injuries are common in ice hockey, and a number of high-profile fractures and dislocations have occurred in elite hockey players in recent years. Acromioclavicular joint injuries, clavicle fractures, and sternoclavicular joint injuries are some of the most frequent hockey-related injuries treated by orthopaedic surgeons, and familiarity with the management of these injuries and sport-specific considerations for treatment and recovery are critical. Injuries involving the clavicle can sometimes be life-threatening, and subtle findings on physical examination and radiographic studies can have profound implications for treatment. The recent literature pertinent to the diagnosis and treatment of clavicle-related injuries in ice hockey players was reviewed and compiled into a clinical commentary. For ice hockey players, the upper extremity was traditionally considered a relatively well-protected area. However, given the evolution of the game and its protective equipment, the upper extremity now accounts for the majority of youth ice hockey injuries, of which clavicle injuries comprise a significant proportion. Acromioclavicular joint injuries are the most common injury in this population, followed closely by clavicle fractures. Sternoclavicular joint injuries are rare but can be associated with serious complications. The treatment of these injuries often differs between athletes and the general population, and surgical indications continue to evolve in both groups. Although the evidence regarding clavicle injuries is ever-increasing and the treatment of these injuries remains controversial, clavicle injuries are increasingly common in ice hockey players. Rule and equipment changes, most notably the increased use of flexible boards and glass, have been shown to significantly decrease the risk of clavicle injuries. We also recommend compulsory use of shoulder pads, even at a recreational level, as well as continued enforcement and evolution of rules aimed at reducing the rate of clavicle injuries. Future research should focus on equipment design changes directed toward clavicle injury prevention, standardized return-to-play protocols, and studies weighing the risks and benefits of nonoperative management of controversial injuries, such as type III acromioclavicular joint dislocations and diaphyseal clavicle fractures.
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Affiliation(s)
- Eugene S Jang
- Department of Orthopedic Surgery, Columbia University Medical Center, New York, New York, USA
| | - Caroline N Park
- Department of Orthopedic Surgery, Columbia University Medical Center, New York, New York, USA
| | - William N Levine
- Department of Orthopedic Surgery, Columbia University Medical Center, New York, New York, USA
| | - Charles A Popkin
- Department of Orthopedic Surgery, Columbia University Medical Center, New York, New York, USA
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Hollo D, Kolling C, Audigé L, Moro F, Rikli D, Müller AM. Plating and cortical bone grafting of clavicular nonunions: clinical outcome and its relation to clavicular length restoration. JSES Int 2020; 4:508-514. [PMID: 32939477 PMCID: PMC7479049 DOI: 10.1016/j.jseint.2020.04.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Background The goal of this study was to evaluate whether plating and cortical bone grafting of shortened clavicular nonunions would restore clavicular length and enable bone healing. The association between the clavicular length difference (CLD) between sides and long-term functional outcome was also explored. Methods For this retrospective 2-center study, patients who underwent plate fixation with cortical bone grafting of a clavicular nonunion were assessed after ≥2 years. The CLD and bone union were assessed using radiography and navigation ultrasound. The functional outcome was determined by the Constant score, Simple Shoulder Test score, and Subjective Shoulder Value, as well as local pain (0-10 numeric rating scale). Results Between 2 and 13 years after surgery, 25 patients (mean age, 53 years; 13 female patients) were examined. The median CLD was 0 mm (range, –17 to 13 mm) on ultrasound measurements and 2 mm (range, –32 to 9 mm) on radiographs. At follow-up, the median Constant score, Simple Shoulder Test score, Subjective Shoulder Value, and pain level were 82 points (range, 38-95 points), 12 points (range, 3-12 points), 95% (range, 60%-100%), and 0 (range, 0-8), respectively. There was no correlation between the CLD and all functional outcome scores. Bone union was achieved in all patients. After plate removal, 4 refractures occurred, 3 of which required revision. Conclusions Plate fixation with cortical bone grafting of clavicular nonunions is associated with restoration of clavicular length and a high rate of bone union. There is, however, a considerable risk of refracture following plate removal. There was no association between the CLD and clinical outcome.
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Affiliation(s)
- David Hollo
- Department of Orthopedic Surgery and Traumatology, University Hospital Basel, Basel, Switzerland
| | - Christoph Kolling
- Department of Shoulder and Elbow Surgery, Schulthess Klinik, Zürich, Switzerland
- Department of Teaching, Research and Development, Schulthess Klinik, Zürich, Switzerland
| | - Laurent Audigé
- Department of Shoulder and Elbow Surgery, Schulthess Klinik, Zürich, Switzerland
- Department of Teaching, Research and Development, Schulthess Klinik, Zürich, Switzerland
| | - Fabrizio Moro
- Department of Shoulder and Elbow Surgery, Schulthess Klinik, Zürich, Switzerland
| | - Daniel Rikli
- Department of Orthopedic Surgery and Traumatology, University Hospital Basel, Basel, Switzerland
| | - Andreas M. Müller
- Department of Orthopedic Surgery and Traumatology, University Hospital Basel, Basel, Switzerland
- Corresponding author: Andreas M. Müller, MD, Department of Orthopedic Surgery and Traumatology, University Hospital Basel, Spitalstrasse 21, CH-4031, Basel, Switzerland.
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Jaloux C, Bettex Q, Levadoux M, Cerlier A, Iniesta A, Legre R, Mayoly A, Gay A. Free vascularized medial femoral condyle corticoperiosteal flap with non-vascularized iliac crest graft for the treatment of recalcitrant clavicle non-union. J Plast Reconstr Aesthet Surg 2020; 73:1232-1238. [PMID: 32414702 DOI: 10.1016/j.bjps.2020.03.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 03/24/2020] [Accepted: 03/26/2020] [Indexed: 11/19/2022]
Abstract
Clavicle non-union is a challenging problem. Open reduction with internal fixation and autologous bone grafting is usually the first line treatment. In case of failure, the medial femoral condyle corticoperiosteal flap in association with a non-vascularized bone graft is one of the therapeutic options, which is well adapted to the clavicle anatomical characteristics. We performed a retrospective study of all patients treated with this technique in our department. Between 2014 and 2017, five patients with recalcitrant post traumatic clavicle non-unions received this surgical treatment. The average nonunion time period was 50.2 month (range 10 to 108 months), and the mean defect length was 3.4 cm (between 2 and 5 cm), defects were all located in the medial third of the clavicle Three patients achieved full consolidation with an average time of consolidation of 8,7 months (range 6 to12 months). Patients with radiological consolidation had better functional improvement and pain reduction with an average DASH score improved from 53,6 before surgery to 19,6 after consolidation (at the last follow up visit). There was one donor site complications (hematoma). The medial femoral condyle corticoperiosteal flap with non-vascularized iliac crest graft is a good option for the management of recalcitrant clavicle non-union, especially when the bone defect is small.
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Affiliation(s)
- Charlotte Jaloux
- Department of Hand Surgery and Plastic and reconstructive surgery of the limbs - La Timone University Hospital - Assistance Publique Hôpitaux de Marseille, France.
| | - Quentin Bettex
- Department of Hand Surgery and Plastic and reconstructive surgery of the limbs - La Timone University Hospital - Assistance Publique Hôpitaux de Marseille, France
| | - Michel Levadoux
- Department of hand, upper limb and peripheral nerves surgery - Clinique Saint Roch, Toulon, France
| | - Alexandre Cerlier
- Department of Hand Surgery and Plastic and reconstructive surgery of the limbs - La Timone University Hospital - Assistance Publique Hôpitaux de Marseille, France
| | - Aurélie Iniesta
- Department of Hand Surgery and Plastic and reconstructive surgery of the limbs - La Timone University Hospital - Assistance Publique Hôpitaux de Marseille, France
| | - Régis Legre
- Department of Hand Surgery and Plastic and reconstructive surgery of the limbs - La Timone University Hospital - Assistance Publique Hôpitaux de Marseille, France
| | - Alice Mayoly
- Department of Hand Surgery and Plastic and reconstructive surgery of the limbs - La Timone University Hospital - Assistance Publique Hôpitaux de Marseille, France
| | - André Gay
- Department of Hand Surgery and Plastic and reconstructive surgery of the limbs - La Timone University Hospital - Assistance Publique Hôpitaux de Marseille, France
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Nicholson JA, Clement ND, Clelland AD, MacDonald D, Simpson AHRW, Robinson CM. Displaced Midshaft Clavicle Fracture Union Can Be Accurately Predicted with a Delayed Assessment at 6 Weeks Following Injury: A Prospective Cohort Study. J Bone Joint Surg Am 2020; 102:557-566. [PMID: 31977816 DOI: 10.2106/jbjs.19.00955] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND It is unclear if clinical recovery following a midshaft clavicle fracture can accurately predict fracture-healing. The additional information that can be assessed at 6 weeks after injury may have superior predictive value compared with information available at the time of the injury. METHODS A prospective study of all patients (≥16 years of age) who sustained a fully displaced midshaft clavicle fracture was performed. We assessed patient demographic characteristics, injury factors, functional scores, and radiographic predictors with a standardized protocol at 6 weeks. Conditional stepwise regression modeling was used to assess which factors independently predicted nonunion at 6 months after the injury as determined by computed tomography (CT). The nonunion predictor 6-week model was compared with a previously validated model based on factors available at the time of the injury, which included smoking, comminution, and fracture displacement. RESULTS At 6 months, 200 patients completed follow-up. The CT-defined nonunion rate was 14% (27 of 200). Of the functional scores, the QuickDASH (the abbreviated version of the Disabilities of the Arm, Shoulder and Hand questionnaire) had the highest accuracy on receiver operator characteristic (ROC) curve analysis with a 39.8-point threshold, above which was associated with nonunion (area under curve [AUC], 76.8%; p < 0.001). Sixty-nine percent of the cohort had a QuickDASH score of <40 points at 6 weeks, and 95% (131 of 138) of these patients had fracture union. On regression modeling, a QuickDASH score of ≥40 points (p = 0.001), no callus on radiographs (p = 0.004), and fracture movement on examination (p = 0.001) were significant predictors of nonunion. If none were present, the predicted nonunion risk was 3%, found in 40% (80 of 200) of the cohort. Conversely, if ≥2 of the predictors were present, found in 23.5% of the cohort, the predicted nonunion risk was 60%. The nonunion predictor model at 6 weeks appeared to have superior accuracy (AUC, 87.3%) when compared with the nonunion predictor model at the time of injury (AUC, 64.8%) for fracture-healing on ROC curve analysis. CONCLUSIONS Delayed assessment at 6 weeks following displaced midshaft clavicle fracture enables an accurate prediction of patients who are likely to have union with nonoperative management. One in 4 patients are at an increased risk of nonunion and may benefit from operative intervention. LEVEL OF EVIDENCE Prognostic Level I. See Instructions for Authors for a complete description of levels of evidence.
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Affiliation(s)
- Jamie A Nicholson
- Department of Orthopaedic Surgery, University of Edinburgh, Edinburgh, United Kingdom
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Huang X, Xiao H, Xue F. Clavicle nonunion and plate breakage after locking compression plate fixation of displaced midshaft clavicular fractures. Exp Ther Med 2019; 19:308-312. [PMID: 31853304 PMCID: PMC6909797 DOI: 10.3892/etm.2019.8216] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 11/11/2019] [Indexed: 11/06/2022] Open
Abstract
Open reduction and plate fixation have been widely used for the treatment of displaced midshaft clavicular fractures (DMCF). The nonunion rate after plate fixation of DMCF has been reported to be between 0.1 and 15% and the construct failure rate is approximately 5%. Few studies have discussed the risk factors of construct failure. The aim of the present study was to identify possible risk factors of construct failure in plate fixation of DMCF and discuss the subsequent treatment strategies. Six patients who experienced plate breakage and clavicle nonunion between 2015 and 2017 were evaluated. All these patients were treated with open reduction and plate fixation of DMCF using a 3.5-mm locking compression plate. The plate breakage occurred 3-6 months after the initial injury. After the diagnosis of plate breakage, four patients underwent surgical management and two patients underwent nonoperative treatment. Potential risk factors for construct failure and efficacy of the subsequent treatment strategies were analyzed. We found that a risk factor for plate breakage was the increased stress in free hole area around the fracture zone. A second surgery for plate renewal and bone grafting may be necessary in a large percentage of these individuals. Based on the results of this study, our recommendation is that monocortical screws or simple obturators for the holes around the fracture zone should be used to protect the comminuted fragment for further damage and enhance plate strength. If a clavicle nonunion and plate breakage does occur, surgical repair and bone grafting provide high union rates and should be a necessary remedy.
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Affiliation(s)
- Xiaoyan Huang
- Department of Orthopedics, Shanghai Fengxian District Central Hospital, Shanghai 201400, P.R. China
| | - Haijun Xiao
- Department of Orthopedics, Shanghai Fengxian District Central Hospital, Shanghai 201400, P.R. China
| | - Feng Xue
- Department of Orthopedics, Shanghai Fengxian District Central Hospital, Shanghai 201400, P.R. China
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Chieh-Ting Huang T, Sabbagh MD, Lu CK, Steinmann SP, Moran SL. The vascularized medial femoral condyle free flap for reconstruction of segmental recalcitrant nonunion of the clavicle. J Shoulder Elbow Surg 2019; 28:2364-2370. [PMID: 31371161 DOI: 10.1016/j.jse.2019.04.044] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 04/10/2019] [Accepted: 04/15/2019] [Indexed: 02/01/2023]
Abstract
BACKGROUND Recalcitrant clavicular nonunion is a rare but complicated problem of clavicular fracture fixation. Nonunion is most often treated with clavicular shortening or in extreme cases vascularized bone grafting. Herein we describe our experience using the vascularized medial femoral condyle (MFC) free flap for the reconstruction of segmental defects in cases of recalcitrant clavicular nonunion. METHODS A retrospective chart review was conducted of patients with symptomatic recalcitrant nonunion of the clavicle who underwent reconstruction with the vascularized MFC free flap from June 2003 to January 2018. Patients' demographics, time to union, and postoperative complications were collected. RESULTS A total of 7 patients (6 women; 39.8 ± 9.01 years old) underwent clavicular reconstruction after an average of 3.7 ± 1.3 previous surgical procedures. Average preoperative visual analog scale score for pain was 4.1. The graft size ranged from 2 to 5 cm in length with approximately 1 cm in width and depth. The average time of total nonunion was 66 ± 48.2 months before surgery. All flaps survived and all clavicles healed with an average time to radiographic union of 15 ± 6.7 months. Patients regained full shoulder motion, and average postoperative visual analog scale score was 1.6 ± 1.8. All patients returned to their preoperative employment status. Donor site morbidity from the knee was minimal. CONCLUSION The MFC free flap is a good option for recalcitrant bone nonunion of the clavicle where larger vascularized flaps are not warranted. It is effective and offers minimal donor site morbidity.
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Affiliation(s)
| | - M Diya Sabbagh
- Division of Plastic Surgery, Mayo Clinic, Rochester, MN, USA
| | - Chun-Kuan Lu
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
| | | | - Steven L Moran
- Division of Plastic Surgery, Mayo Clinic, Rochester, MN, USA.
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Strong DH, Strong MW, Hermans D, Duckworth D. Operative management of clavicular malunion in midshaft clavicular fractures: a report of 59 cases. J Shoulder Elbow Surg 2019; 28:2343-2349. [PMID: 31351904 DOI: 10.1016/j.jse.2019.04.058] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 04/15/2019] [Accepted: 04/24/2019] [Indexed: 02/01/2023]
Abstract
BACKGROUND Nonoperative management has long been the preferred treatment for clavicular fractures; however, good outcomes, particularly with a shortened and malunited clavicle, are not universal. We report on radiographic and patient-based outcomes of a patient cohort with symptomatic clavicular malunions managed with corrective osteotomy, plate fixation, and local bone graft. We hypothesized that local bone graft would be sufficient for achieving union and length of malunion time would not affect the outcome. METHOD Over a 10-year period, 59 cases underwent operative management of symptomatic clavicular malunion. The surgical technique included osteotomy of the malunion, restoration of length, fixation with a plate, and local bone graft. The average length of time between fracture and surgery was 193.42 weeks (range, 8 weeks to 30 years). All patients were followed up postoperatively until radiographic union was achieved. Disabilities of the Arm, Shoulder and Hand scores were obtained and patients completed questionnaires to assess patient-based outcomes postoperatively. RESULTS All 59 cases achieved union with an average time of 9.25 weeks (range, 6-38 weeks) and only required local bone graft. All patients improved postoperatively with a mean Disabilities of the Arm, Shoulder and Hand score of 1.81 (range, 0-20.68) at 12 months. In 2 patients, infection developed, requiring revision of fixation, and union was subsequently achieved. Two patients had fractures adjacent to their hardware after union was achieved. CONCLUSIONS Corrective osteotomy with restoration of length and alignment, soft-tissue preservation, local bone graft, and plate fixation is a reliable treatment option for midshaft clavicular malunion. Union can be achieved, with good clinical outcomes independent of malunion time.
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Affiliation(s)
- David H Strong
- Orthopaedic Department, Sydney Adventist Hospital Wahroonga, Sydney, NSW, Australia.
| | - Michael W Strong
- Orthopaedic Department, Sydney Adventist Hospital Wahroonga, Sydney, NSW, Australia
| | - Deborah Hermans
- Orthopaedic Department, Sydney Adventist Hospital Wahroonga, Sydney, NSW, Australia
| | - David Duckworth
- Orthopaedic Department, Sydney Adventist Hospital Wahroonga, Sydney, NSW, Australia
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Wurm M, Beirer M, Biberthaler P, Kirchhoff C. [Clavicular fractures : Diagnostics, management and treatment]. Unfallchirurg 2019; 121:983-998. [PMID: 30483850 DOI: 10.1007/s00113-018-0575-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Clavicular fractures account for approximately 6% of bony injuries of the shoulder girdle. Patients suffering from this type of injury show 2 peaks (at the 2nd and 8th decades of life) where the majority occur in young active patients during recreational and sports activities. Besides an accurate patient history with a focus on the trauma mechanism, the clinical and radiological investigations are the cornerstones of the diagnostics. Slightly displaced fractures in a pediatric population as well as non-displaced fractures in adults can be treated conservatively. In cases of shortening and/or displacement and high functional demands, operative treatment of clavicular fractures, stable fixation and the possibility of early mobilization and therapy can be achieved; however, the indications for the procedure also depend on other factors. Surgical stabilization can substantially reduce the danger of non-union, which is why it is becoming more important.
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Affiliation(s)
| | | | | | - C Kirchhoff
- Klinik und Poliklinik für Unfallchirurgie, Klinikum rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, München, Deutschland.
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Roner S, Bersier P, Fürnstahl P, Vlachopoulos L, Schweizer A, Wieser K. 3D planning and surgical navigation of clavicle osteosynthesis using adaptable patient-specific instruments. J Orthop Surg Res 2019; 14:115. [PMID: 31036029 PMCID: PMC6489333 DOI: 10.1186/s13018-019-1151-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Accepted: 04/11/2019] [Indexed: 12/01/2022] Open
Abstract
Background Preoperative three-dimensional planning and intraoperative navigation by patient-specific instruments is a promising method for the exact correction of bone deformities. Nevertheless, disadvantages of current concepts are the missing options of adapting the surgical plan intraoperatively. By providing the surgeons with a controlled length adjustment through the patient-specific instruments, the application area can usefully be expanded in the treatment of clavicle osteosyntheses. Methods In three cases, preoperative three-dimensional surgical planning with the intraoperative use of patient-specific instruments was applied. The computer-assisted assessments of clavicle deformities, the preoperative plan, and the design of patient-specific instruments were created on the basis of computed tomography data. Reduction guides for restoring length and rotation according to the mirrored healthy contralateral side were enhanced with adaptable length adjustment functions. The screw thread of the reduction guides enabled temporary distraction of the clavicle fracture fragments and a controlled compression of the optionally used interposed bone block between clavicle fragments. Results Navigated clavicle osteosyntheses by enhanced patient-specific instruments was executed uneventful in all three cases. The surgeon was able to adapt clavicle length in a planned axis intraoperatively as clinically desired. Conclusion Computer-assisted planning of clavicle osteosynthesis and surgical navigation with additional adaptable patient-specific instruments can usefully expand the previous application areas. By using guided length adjustments, the fragments and optionally the graft can be compressed along a planned axis as desired to ensure optimal bone healing. Level of evidence Basic science study, Surgical technique Electronic supplementary material The online version of this article (10.1186/s13018-019-1151-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- S Roner
- Computer Assisted Research and Development Group, Balgrist University Hospital, University of Zurich, Forchtrasse, 340 8008, Zurich, Switzerland.
| | - P Bersier
- Computer Assisted Research and Development Group, Balgrist University Hospital, University of Zurich, Forchtrasse, 340 8008, Zurich, Switzerland
| | - P Fürnstahl
- Computer Assisted Research and Development Group, Balgrist University Hospital, University of Zurich, Forchtrasse, 340 8008, Zurich, Switzerland
| | - L Vlachopoulos
- Department of Orthopaedics, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
| | - A Schweizer
- Department of Orthopaedics, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
| | - K Wieser
- Department of Orthopaedics, Balgrist University Hospital, University of Zurich, Zurich, Switzerland
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Fang K, Xu S, Zheng Y, Huang L, Chen S, Wu S, Wang W. [Clinical comparative study of thoracoscopic assisted reduction and traditional manual reduction with percutaneous intramedullary nail internal fixation for mid-clavicular fractures]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2019; 33:323-327. [PMID: 30874389 DOI: 10.7507/1002-1892.201808141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Objective To compare the effectiveness of thoracoscopic assisted reduction and traditional manual reduction with percutaneous intramedullary nail internal fixation in the treatment of mid-clavicular fractures. Methods A prospective randomized controlled trial was conducted. Twenty-two patients with mid-clavicular fractures who met the selection criteria between March 2012 and March 2017 were recruited and randomly divided into trial group (7 cases, thoracoscopic assisted reduction and percutaneous intramedullary nail fixation) and control group (15 cases, traditional manual reduction and percutaneous intramedullary nail fixation). There was no significant difference in gender, age, side, cause of injury, fracture classification, interval between injury and operation between the two groups ( P>0.05). The operation time and fracture healing time were recorded and compared between the two groups. The effectiveness was evaluated by Constant-Murley scale at 6 months after operation, which included subjective evaluation indexes (functional activity and pain) and objective evaluation indexes (range of motion of shoulder joint and muscle strength). Results The operation time of the trial group was significantly longer than that of the control group ( t=5.881, P=0.000). Patients in both groups were followed up 7-20 months, with an average of 11 months. Satisfactory anatomical reduction achieved in all patients, and all incisions healed by first intension. In the control group, 1 patient had difficulty in removing the intramedullary nail, and 1 patient had fracture nonunion. No fracture nonunion or intramedullary nail rupture in the other patients of two groups. There was no significant difference in fracture healing time between the two groups ( t=0.764, P=0.453). At 6 months after operation, there was no significant difference in Constant-Murley scale between the two groups ( P>0.05). Conclusion The treatment of the mid-clavicular fracture by using thoracoscopic assisted reduction with intramedullary nail internal fixation requires longer operation time, but does not require fluoroscopy. The effectiveness is comparable to that of traditional surgery.
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Affiliation(s)
- Kaibin Fang
- Department of Orthopedics, the Second Affiliated Hospital of Fujian Medical University, Quanzhou Fujian, 362000, P.R.China
| | - Shuangta Xu
- Department of Tumor Surgery, the Second Affiliated Hospital of Fujian Medical University, Quanzhou Fujian, 362000, P.R.China
| | - Yuhui Zheng
- Department of Orthopedics, the Second Affiliated Hospital of Fujian Medical University, Quanzhou Fujian, 362000, P.R.China
| | - Long Huang
- Department of Orthopedics, the Second Affiliated Hospital of Fujian Medical University, Quanzhou Fujian, 362000, P.R.China
| | - Shoubo Chen
- Department of Orthopedics, the Second Affiliated Hospital of Fujian Medical University, Quanzhou Fujian, 362000, P.R.China
| | - Shiqiang Wu
- Department of Orthopedics, the Second Affiliated Hospital of Fujian Medical University, Quanzhou Fujian, 362000, P.R.China
| | - Wenhuai Wang
- Department of Orthopedics, the Second Affiliated Hospital of Fujian Medical University, Quanzhou Fujian, 362000,
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Kir MÇ. Hyaluronic Acid-Based Mesh Add-On Iliac Autograft Improves Bone Healing and Functional Outcomes in Atrophic Nonunion of Clavicular Midshaft: A 2-Year Followup. Indian J Orthop 2019; 53:459-464. [PMID: 31080288 PMCID: PMC6501624 DOI: 10.4103/ortho.ijortho_702_17] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Atrophic nonunion may frequently be seen after clavicular midshaft fractures. Despite a variety of surgical options, clavicular nonunion cases are associated with impaired bone healing. The aim of current study was to evaluate efficacy of perioperatively administered hyaluronic acid (HA)-based mesh in patients with atrophic midshaft clavicular nonunion managed with iliac wing autograft and plate fixation. MATERIALS AND METHODS This retrospective clinical study investigated 44 patients with atrophic midclavicular nonunion who underwent open reduction plate fixation with iliac wing autografts. Patients were divided into two groups as those managed with iliac wing autograft and anatomical locking plate (ALP) fixation alone and those managed with add-on perioperative HA-based mesh, i.e., Group 1 (n = 24) and Group 2 (n = 20), respectively. Age, duration till to surgery, fracture healing time, length of gap, and length of injured and contralateral clavicle were also invastigated. The 2-year Disabilities of the Arm, Shoulder and Hand (DASH) and Constant scores were evaluated. Kolmogorov-Smirnov test, Mann-Whitney U-test, and Spearman's correlation test were used to assess variables. RESULTS Patients' age, followup time, and duration till surgery were similar between two groups. The study groups did not significantly differ in terms of postoperative clavicular length, as measured relative to unaffected side. Mean duration of the fracture healing was significantly shorter in Group 2 compared to that in Group 1. Mean postoperative 2-year Constant score was statistically higher in Group 2 compared to that of Group 1. In addition, Group 2 had also significantly higher DASH score than that of Group 1. CONCLUSIONS HA-based mesh application added on the iliac wing autografting with ALP fixation may be an efficacious alternative for atrophic nonunion of clavicular midshaft.
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Affiliation(s)
- Mustafa Çağlar Kir
- Department of Orthopaedics and Traumatology, Okmeydani Training and Research Hospital, Health Sciences University, Istanbul, Turkey,Address for correspondence: Dr. Mustafa Çağlar Kir, Department of Orthopaedics and Traumatology, Okmeydani Training and Research Hospital, Darulaceze Caddesi, No. 25 Sisli, 34382 Istanbul, Turkey. E-mail:
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Chen W, Tang K, Tao X, Yuan C, Zhou B. Clavicular non-union treated with fixation using locking compression plate without bone graft. J Orthop Surg Res 2018; 13:317. [PMID: 30541584 PMCID: PMC6292160 DOI: 10.1186/s13018-018-1015-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Accepted: 11/21/2018] [Indexed: 11/14/2022] Open
Abstract
Background The articles that have reported on the size at which a segmental defect of clavicular non-union requires bone grafting are scarce. This study evaluated the functional and radiologic results of fixation by locking compression plate (LCP) without bone graft when the defect size is less than 2 cm following bone sclerosis removal for the treatment of clavicular non-union. Methods The study included 17 patients with mid-shaft clavicular non-union. All patients underwent bone sclerosis resection and fixation using LCP without bone graft. The patients were evaluated preoperatively, and after a minimum of 24 months (mean, 44.47 months; range, 24 to 60 months) postoperatively in terms of the disabilities of the arm, shoulder and hand (DASH) score, the Constant-Murley score, and radiography. Results In this study, no patients were lost to follow-up. The mean DASH score improved from 38.76 ± 7.76 (31.00–46.52) points preoperatively to 19.88 ± 7.18 (12.70–27.06) points 2 years postoperatively (P < 0.01). The mean Constant-Murley score improved from 41.59 ± 8.81 (32.78–50.40) points preoperatively to 75.47 ± 13.50 (61.97–88.97) points 2 years postoperatively (P < 0.01). Radiographs revealed fracture union in all patients. No correlations between the defect size and the postoperative Constant-Murley score or between the defect size and the postoperative DASH score were found based on Pearson tests. No complications, particularly acromioclavicular joint complications and sternoclavicular joint complications, were observed. Conclusions In conclusion, we can suggest, from the findings of our study, that bone sclerosis resection and fixation using LCP without bone graft is effective for the treatment of clavicular non-union involving a gap of less than 2 cm and has a low rate of complications.
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Affiliation(s)
- Wan Chen
- Department of Orthopedic Surgery, Southwest Hospital, Third Military Medical University, Chongqing, 400038, China
| | - Kanglai Tang
- Department of Orthopedic Surgery, Southwest Hospital, Third Military Medical University, Chongqing, 400038, China.
| | - Xu Tao
- Department of Orthopedic Surgery, Southwest Hospital, Third Military Medical University, Chongqing, 400038, China
| | - Chengsong Yuan
- Department of Orthopedic Surgery, Southwest Hospital, Third Military Medical University, Chongqing, 400038, China
| | - Binghua Zhou
- Department of Orthopedic Surgery, Southwest Hospital, Third Military Medical University, Chongqing, 400038, China
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Buchanan DAS, Owen D, Angliss R, McClure DN. Acute subclavian artery occlusion with associated clavicle fracture managed with bypass graft alone. BMJ Case Rep 2018; 2018:bcr-2018-224719. [PMID: 29954765 DOI: 10.1136/bcr-2018-224719] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Subclavian artery injury is a rare consequence of clavicle fracture. It most often results from penetrating trauma but can result from blunt trauma with adjacent bone fragments causing rupture, pseudoaneurysm, dissection or thrombosis of the artery. If flow through the subclavian artery is compromised there is a risk of ipsilateral upper limb ischaemia. Life-threatening haemorrhage may result in cases of laceration, and cerebral infarction may result from dissection. Vascular injury in association with clavicle fracture is typically regarded as an indication for internal fixation of the fracture. We present a case of subclavian artery thrombosis in association with a comminuted midshaft clavicle fracture causing limb ischaemia managed by carotid to brachial artery bypass without internal fracture fixation. The fracture united at 4 weeks and there was no sustained vascular or neurological impairment at follow-up. We advocate urgent vascular intervention in subclavian artery injury. There is little discussion in the literature regarding non-operative management of clavicle fractures with subclavian artery injury. We suggest that select clavicle fractures with subclavian artery injury can be safely managed non-operatively.
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Affiliation(s)
- Dougal A S Buchanan
- Department of Vascular and Endovascular Surgery, Barwon Health, Geelong, Victoria, Australia
| | - David Owen
- Department of Orthopaedic Surgery, Barwon Health, Geelong, Victoria, Australia
| | - Richard Angliss
- Department of Orthopaedic Surgery, Barwon Health, Geelong, Victoria, Australia
| | - David N McClure
- Department of Vascular and Endovascular Surgery, Barwon Health, Geelong, Victoria, Australia
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Sidler-Maier CC, Dedy NJ, Schemitsch EH, McKee MD. Clavicle Malunions: Surgical Treatment and Outcome-a Literature Review. HSS J 2018; 14:88-98. [PMID: 29399001 PMCID: PMC5786594 DOI: 10.1007/s11420-017-9583-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Accepted: 08/27/2017] [Indexed: 02/07/2023]
Abstract
BACKGROUND Successful treatment of clavicle malunion represents a major challenge for orthopedic surgeons. QUESTIONS/PURPOSES The aim of this study was to provide an overview of surgical options for the treatment of clavicle malunions regarding their technical details and clinical results. METHODS A comprehensive search of the literature was performed to retrieve articles and conference abstracts regarding the surgical treatment of clavicle malunions. A total of 1873 records were identified and 29 studies were included in the present review, with a total of 103 patients. RESULTS The majority of the patients (77/103) were treated with an osteotomy and subsequent open reduction internal fixation (ORIF). The next most frequent management choice was debridement, excision, or removal of excess callus or bone (n = 19), but other techniques like resection of the clavicle (n = 5) or nerve exploration and decompression (n = 2) were also reported. The preferred method of fixation was plate fixation (n = 53) followed by pin fixation (n = 6). The complication rate was low, reported in less than 6% of patients. CONCLUSION All of the currently reported surgical techniques to manage symptomatic clavicle malunion have resulted in good clinical outcomes with a low complication rate. Considering biomechanical aspects, correction osteotomy followed by plate fixation seems to be the preferred method. Further studies are needed to compare the various surgical techniques and their specific outcomes in a prospective manner. Nevertheless, this review article can be used as an overview to help choose an optimal operative treatment for patients presenting with a clavicle malunion.
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Affiliation(s)
- Claudia Christine Sidler-Maier
- Division of Trauma and Orthopaedic Surgery, Upper Limb Surgery, Ashford & St. Peter’s Hospital, Guildford Road, Chertsey, Surrey KT16 0PZ UK
| | - Nicolas J. Dedy
- Department of Orthopaedic Surgery, Krankenhaus Barmherzige Brüder, Regensburg, Germany
| | - Emil H. Schemitsch
- Department of Orthopaedic Surgery, London Health Sciences Centre, St. Joseph’s Health Care, London, ON Canada
| | - Michael D. McKee
- Division of Orthopaedic Surgery, Department of Surgery, St. Michael’s Hospital, University of Toronto, Toronto, Canada
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Calori GM, Mazza EL, Colombo A, Mazzola S, Colombo M. Treatment of an atrophic clavicle non-union with the chamber induction technique: a case report. Injury 2017; 48 Suppl 3:S71-S75. [PMID: 29025615 DOI: 10.1016/s0020-1383(17)30662-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The gold standard technique for treating non-union of the clavicle is based on corticocancellous bone graft harvested from the iliac crest and fixation with a plate. In cases of large clavicular defects, this surgical procedure becomes ineffective and only a complex bone reconstruction can be considered. In the herein study we report on a clavicular non-union which was associated with a 4cm bone defect that was managed successfully with optimum fixation and the Chamber Induction Technique (C.I.T)-formation of the masquelet membrane- and subsequent biological augmentation with a composite bone graft.
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Affiliation(s)
- Giorgio Maria Calori
- Reparative Orthopaedic Surgery Department - ASST Pini-CTO, University of Milan, Italy
| | - Emilio Luigi Mazza
- Reparative Orthopaedic Surgery Department - ASST Pini-CTO, University of Milan, Italy
| | - Alessandra Colombo
- Reparative Orthopaedic Surgery Department - ASST Pini-CTO, University of Milan, Italy
| | - Simone Mazzola
- Reparative Orthopaedic Surgery Department - ASST Pini-CTO, University of Milan, Italy
| | - Massimiliano Colombo
- Reparative Orthopaedic Surgery Department - ASST Pini-CTO, University of Milan, Italy.
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Rollo G, Vicenti G, Rotini R, Abate A, Colella A, D'Arienzo A, Carrozzo M, Moretti B. Clavicle aseptic nonunion: is there a place for cortical allogenic strut graft? Injury 2017; 48 Suppl 3:S60-S65. [PMID: 29025612 DOI: 10.1016/s0020-1383(17)30660-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
We investigated functional and radiological outcome in 57 cases of midshaft clavicle nonunion treated with open reduction and internal fixation with plate and screws over a 13 year-period. Intercalary bone graft was used in 42 patients; opposite autologous strut graft was used in 31 cases to provide mechanical support to the host bone. Patients were analysed using chart and radiological review and assessed with DASH questionnaire obtained at the latest follow-up. 37 patients were male while 20 were females, with a mean age of 35 years (63-17). All cases were of nonunion, 35 atrophic and 22 hypertrophic. The dominant side was injured in 32 cases and the non dominant in 25 cases. Primarily, 43 cases were treated conservatively with a figure of eight bandage. Time between fracture and our operative treatment was on average 44 months (13-72 months). Only those patients who were symptomatic were included in this study. We used straight reconstruction LCP and low profile precontoured plates. By reviewing patients charts all the cases but one of nonunion progressed to osseous healing at a mean time of 14 weeks (range 12-16). The patient with non-union refused further surgery. 49 patients were available for a final follow up. DASH score was 16.7 at an average of 42 months. Open surgery and internal fixation, using plate and screws in a compression construct is the treatment of choice for symptomatic clavicular non-unions. Intercalary autologous or allograft bone graft should be used especially in patient with significant bone loss; autologous cortical strut graft provides optimum mechanical stability, thus assuring optimal screw purchase and allowing immediate limb movement.
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Affiliation(s)
| | - Giovanni Vicenti
- Department of Neuroscience and Organs of Sense, Orthopedic Section, Faculty of Medicine and Surgery, University of Bari, Bari, Italy.
| | - Roberto Rotini
- Shoulder and Elbow Surgery, Rizzoli Orthopaedic Institute, Bologna, Italy
| | - Antonella Abate
- Department of Neuroscience and Organs of Sense, Orthopedic Section, Faculty of Medicine and Surgery, University of Bari, Bari, Italy
| | - Antonio Colella
- Department of Neuroscience and Organs of Sense, Orthopedic Section, Faculty of Medicine and Surgery, University of Bari, Bari, Italy
| | - Antonio D'Arienzo
- Orthopedic and Trauma Section, University of Palermo, Palermo, Italy
| | - Massimiliano Carrozzo
- Department of Neuroscience and Organs of Sense, Orthopedic Section, Faculty of Medicine and Surgery, University of Bari, Bari, Italy
| | - Biagio Moretti
- Department of Neuroscience and Organs of Sense, Orthopedic Section, Faculty of Medicine and Surgery, University of Bari, Bari, Italy
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Vlachopoulos L, Schweizer A, Meyer DC, Gerber C, Fürnstahl P. Computer-assisted planning and patient-specific guides for the treatment of midshaft clavicle malunions. J Shoulder Elbow Surg 2017; 26:1367-1373. [PMID: 28395943 DOI: 10.1016/j.jse.2017.02.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 01/30/2017] [Accepted: 02/07/2017] [Indexed: 02/01/2023]
Abstract
BACKGROUND The surgical treatment of malunions after midshaft clavicle fractures is associated with a number of potential complications and the surgical procedure is challenging. However, with appropriate and meticulous preoperative surgical planning, the surgical correction yields satisfactory results. The purpose of this study was to provide a guideline and detailed overview for the computer-assisted planning and 3-dimensional (3D) correction of malunions of the clavicle. METHODS The 3D bone surface models of the pathologic and contralateral sides were created on the basis of computed tomography data. The computer-assisted assessment of the deformity, the preoperative plan, and the design of patient-specific guides enabling compression plating are described. RESULTS We demonstrate the benefit and versatility of computer-assisted planning for corrective osteotomies of malunions of the midshaft clavicle. In combination with patient-specific guides and compression plating technique, the correction can be performed in a more standardized fashion. We describe the determination of the contact-optimized osteotomy plane. An osteotomy along this plane facilitates the correction and enlarges the contact between the fragments at once. We further developed a technique of a stepped osteotomy that is based on the calculation of the contact-optimized osteotomy plane. The stepped osteotomy enables the length to be restored without the need of structural bone graft. The application of the stepped osteotomy is presented for malunions of the clavicle with shortening and excessive callus formation. CONCLUSIONS The 3D preoperative planning and patient-specific guides for corrective osteotomies of the clavicle may help reduce the number of potential complications and yield results that are more predictable.
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Affiliation(s)
- Lazaros Vlachopoulos
- Computer Assisted Research and Development Group, Balgrist University Hospital, University of Zürich, Zürich, Switzerland; Computer Vision Laboratory, ETH Zürich, Zürich, Switzerland.
| | - Andreas Schweizer
- Department of Orthopaedics, Balgrist University Hospital, University of Zürich, Zürich, Switzerland
| | - Dominik C Meyer
- Department of Orthopaedics, Balgrist University Hospital, University of Zürich, Zürich, Switzerland
| | - Christian Gerber
- Department of Orthopaedics, Balgrist University Hospital, University of Zürich, Zürich, Switzerland
| | - Philipp Fürnstahl
- Computer Assisted Research and Development Group, Balgrist University Hospital, University of Zürich, Zürich, Switzerland
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Fritz EM, van der Meijden OA, Hussain ZB, Pogorzelski J, Millett PJ. Intramedullary Fixation of Midshaft Clavicle Fractures. J Orthop Trauma 2017; 31 Suppl 3:S42-S44. [PMID: 28697087 DOI: 10.1097/bot.0000000000000906] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Clavicle fractures are among the most common fractures occurring in the general population, and the vast majority are localized in the midshaft portion of the bone. Management of midshaft clavicle fractures remains controversial. Although many can be managed nonoperatively, certain patient populations and fracture patterns, such as completely displaced and shortened fractures, are at risk of less optimal outcomes with nonoperative management; surgical intervention should be considered in such cases. The purpose of this article is to demonstrate our technique of midshaft clavicle fixation using minimally invasive intramedullary fixation.
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Affiliation(s)
- Erik M Fritz
- *The Steadman Clinic, Vail, CO; and †Steadman Philippon Research Institute, Vail, CO
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Beirer M, Banke IJ, Harrasser N, Crönlein M, Pförringer D, Huber-Wagner S, Biberthaler P, Kirchhoff C. Mid-term outcome following revision surgery of clavicular non- and malunion using anatomic locking compression plate and iliac crest bone graft. BMC Musculoskelet Disord 2017; 18:129. [PMID: 28356152 PMCID: PMC5371239 DOI: 10.1186/s12891-017-1488-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Accepted: 03/14/2017] [Indexed: 12/05/2022] Open
Abstract
Background Treatment of clavicular non- and malunion is still challenging. Current surgical procedures often result in frustrating functional outcome along with high-grade subjective impairment and increased rates of revision surgery. However, the combination of biological augmentation with vital bone graft and a biomechanically sufficient fixation system seems to be a promising concept of treatment. Methods In this retrospective study, 14 patients with a mean age of 44 years (26–67 years) suffering from non-union (n = 11) and/or malunion (n = 3) of the clavicle were enrolled. All patients were surgically treated using an anatomical precontoured locking compression plate (LCP) and autologous iliac crest bone graft. Functional outcome was assessed using the age- and sex-specific relative Constant Score. Results Mean follow-up was 27 months (range 12–44 months). The relative Constant Score significantly improved from preoperative 61 ± 8 (43–72) to 82 ± 10 (65–100) points at the final follow-up examination (p < 0.05). All patients showed bony union radiographically. One patient presented with a re-fracture of the clavicle nearly 3 years after revision surgery and 5 weeks after implant removal. Secondary fractures at the donor site of the anterior superior iliac spine were recorded in two patients. Conclusions Iliac crest bone graft and anatomic locking plate fixation allow for a safe and adequate stabilization and radiographical bony union in non- and malunions of the clavicle with a high degree of patient satisfaction. However, secondary fractures of the anterior superior iliac spine constitute relevant complications and the time of hardware removal should be considered carefully.
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Affiliation(s)
- Marc Beirer
- Department of Trauma Surgery, Klinikum rechts der Isar, Technical University of Munich, Ismaningerstr. 22, Munich, 81675, Germany.
| | - Ingo J Banke
- Clinic of Orthopedics and Sports Orthopedics, Klinikum rechts der Isar, Technical University of Munich, Ismaningerstr. 22, Munich, 81675, Germany
| | - Norbert Harrasser
- Clinic of Orthopedics and Sports Orthopedics, Klinikum rechts der Isar, Technical University of Munich, Ismaningerstr. 22, Munich, 81675, Germany
| | - Moritz Crönlein
- Department of Trauma Surgery, Klinikum rechts der Isar, Technical University of Munich, Ismaningerstr. 22, Munich, 81675, Germany
| | - Dominik Pförringer
- Department of Trauma Surgery, Klinikum rechts der Isar, Technical University of Munich, Ismaningerstr. 22, Munich, 81675, Germany
| | - Stefan Huber-Wagner
- Department of Trauma Surgery, Klinikum rechts der Isar, Technical University of Munich, Ismaningerstr. 22, Munich, 81675, Germany
| | - Peter Biberthaler
- Department of Trauma Surgery, Klinikum rechts der Isar, Technical University of Munich, Ismaningerstr. 22, Munich, 81675, Germany
| | - Chlodwig Kirchhoff
- Department of Trauma Surgery, Klinikum rechts der Isar, Technical University of Munich, Ismaningerstr. 22, Munich, 81675, Germany
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McKnight B, Heckmann N, Hill JR, Pannell WC, Mostofi A, Omid R, Hatch GFR. Surgical management of midshaft clavicle nonunions is associated with a higher rate of short-term complications compared with acute fractures. J Shoulder Elbow Surg 2016; 25:1412-7. [PMID: 27068385 DOI: 10.1016/j.jse.2016.01.028] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Revised: 01/14/2016] [Accepted: 01/22/2016] [Indexed: 02/01/2023]
Abstract
BACKGROUND Little is known about the perioperative complication rates of the surgical management of midshaft clavicle nonunions. The purpose of the current study was to report on the perioperative complication rates after surgical management of nonunions and to compare them with complication rates of acute fractures using a population cohort. METHODS The American College of Surgeons National Surgical Quality Improvement Program database was queried to identify patients who had undergone open reduction-internal fixation of midshaft clavicle fractures between 2007 and 2013. Patients were stratified by operative indication: acute fracture or nonunion. Patient characteristics and 30-day complication rates were compared between the 2 groups using univariate and multivariate analyses. RESULTS A total of 1215 patients were included in our analysis. Of these, 1006 (82.8%) were acute midshaft clavicle fractures and 209 (17.2%) were midshaft nonunions. Patients undergoing surgical fixation for nonunion had a higher rate of total complications compared with the acute fracture group (5.26% vs. 2.28%; P = .034). On multivariate analysis, patients with a nonunion were at a >2-fold increased risk of any postsurgical complication (odds ratio, 2.29 [95% confidence interval, 1.05-5.00]; P = .037) and >3-fold increased risk of a wound complication (odds ratio, 3.22 [95% confidence interval, 1.02-10.20]; P = .046) compared with acute fractures. CONCLUSION On the basis of these findings, patients undergoing surgical fixation for a midshaft clavicle nonunion are at an increased risk of short-term complications compared with acute fractures. This study provides additional information to consider in making management decisions for these common injuries.
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Affiliation(s)
- Braden McKnight
- Department of Orthopaedic Surgery, Keck School of Medicine of USC, Los Angeles, CA, USA.
| | - Nathanael Heckmann
- Department of Orthopaedic Surgery, Keck School of Medicine of USC, Los Angeles, CA, USA
| | - J Ryan Hill
- Department of Orthopaedic Surgery, Keck School of Medicine of USC, Los Angeles, CA, USA
| | - William C Pannell
- Department of Orthopaedic Surgery, Keck School of Medicine of USC, Los Angeles, CA, USA
| | - Amir Mostofi
- Department of Orthopaedic Surgery, Keck School of Medicine of USC, Los Angeles, CA, USA; Huntington Hospital, Pasadena, CA, USA
| | - Reza Omid
- Department of Orthopaedic Surgery, Keck School of Medicine of USC, Los Angeles, CA, USA
| | - George F Rick Hatch
- Department of Orthopaedic Surgery, Keck School of Medicine of USC, Los Angeles, CA, USA
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Comparative study suggests that human bone morphogenetic proteins have no influence on the outcome of operative treatment of aseptic clavicle non-unions. INTERNATIONAL ORTHOPAEDICS 2016; 40:2339-2345. [DOI: 10.1007/s00264-016-3262-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Accepted: 07/25/2016] [Indexed: 10/21/2022]
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