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Al Ramlawi A, Assayag M, McClure P. PRECICE nail bending in femur lengthening. J Orthop 2024; 56:127-132. [PMID: 38828473 PMCID: PMC11137381 DOI: 10.1016/j.jor.2024.05.018] [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: 04/29/2024] [Accepted: 05/12/2024] [Indexed: 06/05/2024] Open
Abstract
Intro Intramedullary nails (ILNs) are commonly used in orthopedic surgery for the fixation of long bone fractures and limb lengthening. Understanding the structural mechanics (i.e. nail bend) of an ILN device is crucial in determining its performance under various loading conditions. Furthermore, nail diameter was found to play a key role in an ILN's susceptibility to plastic deformity. This study aims to investigate the degree of nail bending and incidence of plastic deformity in patients receiving antegrade femoral ILNs (PRECICE, NuVasive, Inc.). Methods Retrospectively evaluated 130 ILNs (PRECICE, NuVasive, Inc.) in 100 adult patients who underwent limb lengthening done in a single center. Patients who had concomitant osteotomies, tibial lengthening, malunion, non-union, mechanical failure, or revision surgery for any reason were excluded. All nails were inserted through the greater trochanter or piriformis. Patients' age, weight, height, and body mass index (BMI)were extracted. Radiologic assessments involved analyzing long lower limb standing X-rays before, during, and at consolidation for total distraction and nail bend. Naildiameter and patient characteristics were directly sourced from medical records. Results Nail bend at consolidation averaged 2.4° (SD 2.4), ranging from 0 to 9. Additionally, total femoral lengthening was assessed, with a mean value of 5.3 cm (SD 2.1). A significant positive association was observed in the nail bend and weight (weight in kg/nail diameter in mm) coefficient (P < 00.01). Bilateral limb lengthening was also correlated to increase nail bend (P < 00.05). Conclusion Patient's weight to nail diameter ratio and bilateral limb lengthening were found to be significant factors affecting nail bend. These findings advance our understanding of the interrelation between the nail biomechanical profile and the patient's physical attributes, offering important implications for limb lengthening. Level of evidence III.
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Affiliation(s)
- Akram Al Ramlawi
- International Center for Limb Lengthening, Sinai of Baltimore, USA
| | - Michael Assayag
- International Center for Limb Lengthening, Sinai of Baltimore, USA
| | - Philip McClure
- International Center for Limb Lengthening, Sinai of Baltimore, USA
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2
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Jagani N, Fagir M, Dalal N, James LA. Metatarsal lengthening by distraction osteogenesis for brachymetatarsia in paediatric patients: is it safe and effective? EUROPEAN JOURNAL OF ORTHOPAEDIC SURGERY & TRAUMATOLOGY : ORTHOPEDIE TRAUMATOLOGIE 2024; 34:1839-1844. [PMID: 38427053 DOI: 10.1007/s00590-024-03860-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 02/12/2024] [Indexed: 03/02/2024]
Abstract
PURPOSE The primary aim is to assess the efficacy of the surgical callus distraction technique of the metatarsus in paediatric patients. Secondary objectives are to assess complications and treatment duration. We have also described the details of our surgical technique. MATERIALS AND METHODS A case series review of paediatric patients who had metatarsal lengthening at our unit between 2014 and 2022. Patient demographics, duration of time in frame, complications and metatarsal length achieved were recorded. The AOFAS Midfoot and the MOXFQ were taken pre-operatively and at final follow-up. RESULTS Sixteen metatarsals in 8 patients (14 feet) underwent lengthening between 2014 and 2022 using the MiniRail OrthoFix 100 (Orthofix Medical Inc, Lewisville, TX, USA). The mean age was 13.3 (12-17) years. The average duration between surgery and implant removal was 5.2 months. According to Paley's classification, there was one obstacle encountered in a patient who required a revision of their osteotomy and one problem in another patient who had an infected metatarsophalangeal joint stabilising k-wire treated with oral antibiotics. The Mean AOFAS Midfoot score improved from 53.10 to 86.40 (p < 0.0001) and the Mean MOXFQ improved from 32.5000 to 12.1250 (p < 0.05); these were statistically significant. CONCLUSION Gradual metatarsal lengthening using the MiniRail external fixator is a safe and effective method to treat brachymetatarsia in paediatric patients. This preliminary report describes and supports metatarsal lengthening in appropriate patients. Holistic care in terms of a pre-operative assessment, psychological support and preparation for the extended rehabilitation period are vital.
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Affiliation(s)
| | | | - Neel Dalal
- Alder Hey Children's Hospital, Liverpool, UK
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3
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Hung WC, Chen CH, Lin CH, Chen TY, Lo SP. Subacute two stage metatarsal lengthening with gradual distraction for brachymetatarsia: A consecutive case series and literature review. Foot Ankle Surg 2023; 29:86-89. [PMID: 36328920 DOI: 10.1016/j.fas.2022.10.006] [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: 07/06/2022] [Revised: 09/30/2022] [Accepted: 10/19/2022] [Indexed: 02/04/2023]
Abstract
BACKGROUND This study examined the functional and clinical outcomes of subacute two stage metatarsal lengthening with gradual distraction for brachymetatarsia. This technique was developed to overcome the disadvantages of one-stage metatarsal lengthening and gradual distraction. METHODS Four feet of three patients with congenital brachymetatarsia underwent subacute two stage metatarsal lengthening with gradual distraction. Pain, function, and alignment were assessed preoperatively and at follow-ups using the American Orthopaedic Foot and Ankle Society (AOFAS) lesser metatarsophalangeal-interphalangeal scale, and any complications were recorded. RESULTS The patients were followed up for a mean of 18.1 ± 6.9 (range, 12.6-28.1) months. The mean metatarsal length gain was 15.2 ± 3.2 (range, 12.1-18.5) mm, and the corresponding percent increase was 32.5 % ± 7.0 % (range, 25.7-41.1 %). The mean AOFAS score (0-100) was 97.5 ± 5.0 at the final follow-up. The external fixator index was 10.2 ± 1.5 (range, 8.1-11.6) days/cm. None of the patients experienced metatarsophalangeal stiffness, subluxation or dislocation of the metatarsophalangeal joint, loss of correction, pin tract infection, delayed union, nonunion, or angular deformities. CONCLUSION Subacute two stage metatarsal lengthening with gradual distraction is a reliable alternative treatment for brachymetatarsia.
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Affiliation(s)
- Wei-Chen Hung
- Department of Orthopaedics, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi, Taiwan
| | - Chun-Ho Chen
- Department of Orthopaedics, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi, Taiwan
| | - Chang-Hao Lin
- Department of Orthopaedics, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi, Taiwan
| | - Tzu-Yin Chen
- Department of Physical Therapy, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi, Taiwan
| | - Sheng-Pin Lo
- Department of Orthopaedics, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi, Taiwan.
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4
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Zhang N, Xu H, Huang Z, Wang Y, Li Z, Xu W, Hu Y. Plantar approach for treatment of brachymetatarsia: A novel approach with an aesthetic consideration. J Plast Reconstr Aesthet Surg 2021; 75:1668-1673. [PMID: 34975001 DOI: 10.1016/j.bjps.2021.11.078] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 07/04/2021] [Accepted: 11/12/2021] [Indexed: 11/25/2022]
Abstract
In the past, open osteotomy was always performed through a dorsal approach in the surgical treatment of brachymetatarsia, which created scar formation on the dorsal skin, subsequently resulting in dissatisfaction with cosmetic results. In this study, we provided a plantar approach to avoid forming scars on the dorsal side. A retrospective review was conducted in nine patients (13 feet) with brachymetatarsia treated with an open osteotomy and gradual bone lengthening through a plantar approach. Visual analogue scale (VAS) was used to evaluate the satisfaction of foot appearance, and we designed a questionnaire called appearance index (AI) to assess the influence of foot appearance on quality of life after surgery. The complications were also recorded during the follow-up. The patients were followed up for 34.8 ± 23.7 months. All cases were healed with a time of 64.4 ± 7.1 days and a healing index of 44.1 ± 7.8 d/cm. Satisfaction VAS for foot appearance improved from a preoperative score of 1.7 ± 1.3 points to a postoperative score of 9.3 ± 0.5 points. The AI improved from a preoperative score of 9.2 ± 0.8 points to a postoperative score of 0.6 ± 0.7 points. Complications were observed in three feet (23.1%), but none was related to the plantar approach. In conclusion, the plantar approach for metatarsal osteotomy and pins fixation was a safe and efficient technique with a satisfactory cosmetic result for the patients. No complications related to the novel approach, such as neurovascular injury, were reported.
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Affiliation(s)
- Ning Zhang
- Department of Foot and Ankle Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Ji'nan 250033, PR China
| | - Hua Xu
- Linyi Cancer Hospital, Linyi, PR China
| | - Zheng Huang
- Department of Foot and Ankle Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Ji'nan 250033, PR China
| | - Yang Wang
- Department of Foot and Ankle Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Ji'nan 250033, PR China
| | - Zhengxun Li
- Department of Foot and Ankle Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Ji'nan 250033, PR China
| | - Wenpeng Xu
- Department of Foot and Ankle Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Ji'nan 250033, PR China
| | - Yong Hu
- Department of Foot and Ankle Surgery, The Second Hospital, Cheeloo College of Medicine, Shandong University, Ji'nan 250033, PR China.
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5
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Tratamento da braquimetatarsia por distração osteogênica com fixador externo monolateral. Rev Bras Ortop 2021; 57:75-81. [PMID: 35198112 PMCID: PMC8856843 DOI: 10.1055/s-0041-1735828] [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: 01/07/2021] [Accepted: 06/02/2021] [Indexed: 11/21/2022] Open
Abstract
Objective
To describe the profile of the patients and the results obtained with the use of an external fixator for metatarsal lengthening in brachymetatarsia.
Methods
A retrospective analysis of the medical records of patients with brachymetatarsia treated between January 2018 and April 2020 was performed. During this period, eight feet of six patients were operated on. Frequencies were estimated according to demographic and surgical aspects.
Results
All patients (100%;
n
= 6) were female, with a mean age of 28 years old, ranging from 15 to 48 years old, and were motivated to seek the orthopedic service due to aesthetic deformity. The deformity was bilateral in two patients and unilateral in four patients. The average lengthening time was 22 days ( ± 7.15, 95% confidence interval [CI]: 19.04–26.81). The lengthening speed was 0.5 mm/day, and the average total length of the lengthening was 11.46 mm ( ± 3.57; 95%CI: 9.52–13.40). Half of the patients (50%;
n
= 3) had local infection of the pins and were treated with antibiotics, and the others did not report any postsurgical complications. All patients denied pain or calluses after the surgical procedure and reported satisfaction with the results.
Conclusion
All patients were female and sought surgery for brachymetatarsia for aesthetic reasons. Osteogenic distraction at a rate of 0.5 mm/day resulted in successful lengthening of the metatarsal, with a low frequency of complications, good clinical outcomes, and high patient satisfaction.
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Fusini F, Alessandro M, Rava A, Kristijan Z, Felli L, Colò G. Aetiology, diagnosis, and treatment of brachymetatarsia: a narrative review. Musculoskelet Surg 2021; 106:99-109. [PMID: 34268706 DOI: 10.1007/s12306-021-00720-z] [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: 11/30/2020] [Accepted: 06/27/2021] [Indexed: 11/28/2022]
Abstract
Brachymetatarsia (BM), or hypoplastic metatarsal, is an abnormal shortening of one or more metatarsal bones with a female-to-male ratio of 10.53:1. Different causes are described in the literature, such as congenital, acquired, or iatrogenic, associated with different conditions and syndromes. Its presence may develop deformity and pain; however, often feet are pain free and the major worries of patients are cosmetics. Non-operative treatments aim to improve the comfort of metatarsal heads and the possible dorsal conflict through comfortable shoes or the use of specific orthotics. The surgical treatment is anything but straightforward, with "one-stage" or "two stage" techniques, the latter better called "by gradual distraction". One-stage procedures are more rapid techniques but have limited ability to restore the desired length due to neurovascular compromise caused by acute lengthening. Insufficient correction is also possible. On the contrary, by gradual distraction procedures allow gradual distraction lengthening of more than 1.5 cm, but require the use of an external fixator, with a higher risk of complications in more than about 50% of surgeries. The adjacent metatarsal shortening should be considered in combination with other techniques, to diminish the excessive lengthening. In each case, surgeries should be always decided on each patient's concerns, deformities, and clinical needs.
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Affiliation(s)
- F Fusini
- Department of Orthopaedics and Traumatology, Regina Montis Regalis Hospital, ASL CN1, Via S. Rocchetto, 99, 12084, Mondovì, CN, Italy
| | - M Alessandro
- Department of Orthopaedics and Traumatology, Orthopaedic and Trauma Centre, Città della Salute e della Scienza di Torino, University of Turin, Via Zuretti 29, 10121, Turin, Italy
| | - A Rava
- Department of Orthopaedics and Traumatology, Orthopaedic and Trauma Centre, Città della Salute e della Scienza di Torino, University of Turin, Via Zuretti 29, 10121, Turin, Italy
| | - Z Kristijan
- Department of Orthopaedics and Traumatology, Regional Center for Joint Arthroplasty, ASO Alessandria, Via Venezia 16, 16121, Alessandria, Italy
| | - L Felli
- Orthopaedic Clinic, Department of Surgical Sciences (DISC), University of Genoa, Ospedale Policlinico San Martino, Largo Rosanna Benzi 10, 16132, Genoa, Italy
| | - G Colò
- Department of Orthopaedics and Traumatology, Regional Center for Joint Arthroplasty, ASO Alessandria, Via Venezia 16, 16121, Alessandria, Italy.
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Barik S, Farr S. Brachymetacarpia and brachymetatarsia: do we need to operate? EFORT Open Rev 2021; 6:15-23. [PMID: 33532083 PMCID: PMC7845563 DOI: 10.1302/2058-5241.6.200087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Brachymetacarpia and brachymetatarsia are rare congenital presentations denoted by shortening of metacarpals and metatarsals respectively, in which the deformity usually presents around childhood/early adolescence. The aetiology is usually congenital besides several other syndromic or endocrinologic associations. Cosmetic issues such as absence of a normal-looking knuckle while making a fist or disruption of finger-tip curvature besides functional issues are the main indications for surgical intervention in brachymetacarpia. In the foot, apart from cosmetic issues, pain due to transfer metatarsalgia as well as callosities along with toe deformities which lead to difficulty of using footwear are the main indications for intervention. Lengthening of the affected bone, either acute with grafting or gradual, is the mainstay of treatment. Gradual lengthening can be either single-stage as in callotasis, or two-stage where the primary procedure is followed by bone grafting after the length has been achieved. Adolescence, specifically between 12 and 15 years, is the preferred period for surgical intervention in these cases.
Cite this article: EFORT Open Rev 2021;6:15-23. DOI: 10.1302/2058-5241.6.200087
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Affiliation(s)
- Sitanshu Barik
- Pediatric Orthopedic Surgery, All India Institute of Medical Sciences, Rishikesh, Uttarakhand, India
| | - Sebastian Farr
- Orthopedic Hospital Speising, Department of Pediatric Orthopaedics and Adult Foot and Ankle Surgery, Vienna, Austria
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8
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Jogani AD, Garje V, George PK, Rathod T, Bhaladhare SM. Reconstruction of First Metatarsal Bone Loss Following Osteomyelitis by a Modified Masquelet Technique: A Case Report. J Orthop Case Rep 2020; 10:118-120. [PMID: 34169032 PMCID: PMC8046436 DOI: 10.13107/jocr.2020.v10.i09.1930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Introduction: The literature regarding reconstruction of foot bone defects is limited. The reconstruction of diaphyseal bone defects is technically challenging and is often associated with poor outcomes. Associated osteomyelitis adversely affects the healing rates following a reconstruction procedure. Case Report: We report a case of a 62-year-old male with lytic lesion involving the head of first metatarsal and proximal part of proximal phalanx following osteomyelitis treated with a two-stage reconstruction utilizing a modification of Masquelet’s-induced membrane technique. A follow-up at 24 months post-surgery revealed a fully incorporated fibular graft with satisfactory functional outcomes. Conclusion: This two-stage modification of Masquelet technique provided an effective method to reconstruct the defect and restoration of the metatarsal length using minimal hardware to achieve a good functional recovery of the patient.
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Affiliation(s)
- Abhinav D Jogani
- Department of Orthopaedics, Seth G.S. Medical College and KEM Hospital, Parel, Mumbai. Maharashtra. India
| | - Vinayak Garje
- Department of Orthopaedics, Seth G.S. Medical College and KEM Hospital, Parel, Mumbai. Maharashtra. India
| | - Prakash K George
- Department of Orthopaedics, Seth G.S. Medical College and KEM Hospital, Parel, Mumbai. Maharashtra. India
| | - Tushar Rathod
- Department of Orthopaedics, Seth G.S. Medical College and KEM Hospital, Parel, Mumbai. Maharashtra. India
| | - Shubhanshu M Bhaladhare
- Department of Orthopaedics, Seth G.S. Medical College and KEM Hospital, Parel, Mumbai. Maharashtra. India
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9
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Fuiano M, Mosca M, Caravelli S, Di Liddo M, Grassi A, Majumdar A, Massimi S, Catanese G, Zaffagnini S. Callus distraction with external fixator for the treatment of congenital brachymetatarsia of the fourth ray. Foot Ankle Surg 2020; 26:693-698. [PMID: 31540836 DOI: 10.1016/j.fas.2019.08.018] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 07/07/2019] [Accepted: 08/26/2019] [Indexed: 02/04/2023]
Abstract
BACKGROUND Brachymetatarsia is a rare abnormality of the foot which occurs most frequently in the first and fourth metatarsals. The aim of this study was to evaluate the efficacy of gradual metatarsal lengthening by external fixator for treatment of brachymetatarsia of the fourth ray. The hypothesis was that with external fixation it would be possible to achieve the desired length of the metatarsal with a low rate of complications. Secondarily, in cases requiring a greater amount of correction, it was hypothesized that an opportune rate of bone consolidation would be achievable using a traditional oscillating saw without predrilling or use of a cold osteotome. METHODS Between 2013 and 2016, 12 eligible patients and 13 feet underwent gradual metatarsal lengthening by an external fixator (MiniRail System M103, Orthofix) due to brachymetatarsia of the fourth ray. Mean age at surgery was 24.5±5.3 years (range 19-36), with mean follow-up of 22.3±8.3 months. Clinical evaluation was performed with the AOFAS lesser metatarsophalangeal-interphalangeal (MTP-IP) score. Radiographic assessment was performed on follow-up using non-weightbearing dorsoplantar foot radiographs. RESULTS The mean AOFAS lesser MTP-IP score improved from a preoperative score of 76.6±7.1 points (range 62-85 points) to a postoperative score of 90.3±3.0 points (range 86-95 points). The average amount of lengthening was 16.8±3.9mm (range 8-22mm). Mean shortening, final lengthening, Healing Index, period of treatment, and complications are also reported. The operative technique is described. CONCLUSIONS Gradual metatarsal lengthening with external fixator is an effective treatment for brachymetatarsia and can restore forefoot anatomy with good clinical outcomes, a low rate of morbidity and complications in selected cases. Particular attention should be given when treating patients with shortening >20mm.
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Affiliation(s)
- Mario Fuiano
- II Clinic of Orthopaedics and Traumatology, Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Massimiliano Mosca
- II Clinic of Orthopaedics and Traumatology, Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Silvio Caravelli
- II Clinic of Orthopaedics and Traumatology, Istituto Ortopedico Rizzoli, Bologna, Italy.
| | - Michele Di Liddo
- Chirurgia Protesica di Anca e Ginocchio, Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Alberto Grassi
- II Clinic of Orthopaedics and Traumatology, Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Aditi Majumdar
- Department of Orthopaedics and Rehabilitation, University of New Mexico, MSC10 5600, 1 University of New Mexico, Albuquerque, NM 87131-0001, United States
| | - Simone Massimi
- II Clinic of Orthopaedics and Traumatology, Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Giuseppe Catanese
- II Clinic of Orthopaedics and Traumatology, Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Stefano Zaffagnini
- II Clinic of Orthopaedics and Traumatology, Istituto Ortopedico Rizzoli, Bologna, Italy
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10
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Abstract
Brachymetatarsia is a rare deformity with controversial clinical presentation. Multiple acute and gradual lengthening surgical techniques have been described for correction of this type of foot deformity. All techniques try to create a better appearance, facilitate shoeing, or solve possible transfer metatarsalgia. Either acute lengthening (1-stage procedure) or gradual lengthening (2 stages) is selected based on the patient's deformities, concerns, and clinical needs.
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11
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Lamm BM, Moore KR, Knight JM, Pugh E, Baker JR, Gesheff MG. Intramedullary Metatarsal Fixation for Treatment of Delayed Regenerate Bone in Lengthening of Brachymetatarsia. J Foot Ankle Surg 2019; 57:987-994. [PMID: 30030039 DOI: 10.1053/j.jfas.2017.10.030] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Indexed: 02/03/2023]
Abstract
Delayed regenerate healing after distraction osteogenesis can be a challenging problem for patients and surgeons alike. In the present study, we retrospectively reviewed the data from a cohort of patients with delayed regenerate healing during gradual lengthening treatment of brachymetatarsia. Additionally, we present a novel technique developed by 1 of us (B.M.L.) for the management of delayed regenerate healing. We hypothesized that application of intramedullary metatarsal fixation would safely and effectively promote healing of poor quality, atrophic regenerate during bone lengthening in brachymetatarsia correction. We formulated a study to retrospectively review the data from a cohort of patients with delayed regenerate healing after gradual lengthening for brachymetatarsia. All patients underwent temporary placement of intramedullary fixation after identification of delayed regenerate healing. Patient-related variables and objective measurements were assessed. We identified 10 patients with 13 metatarsals treated with intramedullary fixation for delayed regenerate healing. All 10 patients were female, with 6 (46.2%) right metatarsals and 7 (53.8%) left metatarsals treated. No complications developed with the use of this technique. All subjects progressed to successful consolidation of the regenerate bone at a mean of 44.5 ± 30.2 days after placement of intramedullary metatarsal fixation. No regenerate fracture or reoperations were noted. In conclusion, intramedullary metatarsal fixation is a safe and effective method for managing delayed regenerate healing encountered during distraction osteogenesis correction of brachymetatarsia.
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Affiliation(s)
- Bradley M Lamm
- Chief, Foot and Ankle Surgery, The Paley Institute, St. Mary's Hospital, West Palm Beach, FL; Director, Foot and Ankle Deformity Center, The Paley Institute, St. Mary's Hospital, West Palm Beach, FL; Director, Foot and Ankle Deformity Correction Fellowship, The Paley Institute, St. Mary's Hospital, West Palm Beach, FL.
| | - Kyle R Moore
- Clinical Fellow, Foot and Ankle Deformity Correction Fellowship, The Paley Institute, St. Mary's Hospital, West Palm Beach, FL
| | - Jessica M Knight
- Associate, Weil Foot and Ankle Institute, Northwest Community Hospital Medical Group, Arlington Heights, IL
| | - Emily Pugh
- Podiatrist and Foot and Ankle Surgeon, Harvard Vanguard Medical Associates, Wellesley, MA
| | - Jeffrey R Baker
- Podiatrist, Foot and Ankle Surgeon, Associate Fellowship Director, Weil Foot and Ankle Institute, Des Plaines, IL
| | - Martin G Gesheff
- Clinical Research Manager, International Center for Limb Lengthening, Rubin Institute for Advanced Orthopedics at Sinai Hospital, Baltimore, MD
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12
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Abstract
Brachymetatarsia is a malformation characterized by an abnormal reduction in the length of 1 or more metatarsal bones. It occurs because of early closure of the growth plate of the affected metatarsal. Generally, it is caused by a congenital disorder and it usually occurs bilaterally. With a greater prevalence in females, it most often affects the fourth metatarsal, followed by the first metatarsal. Surgical treatments proposed include using external mini-fixators or bone grafts in a single step to lengthen the metatarsal. In this review, 62 scientific articles about brachymetatarsia were analyzed with key demographic and epidemiological aspects of this pathology. The prevalence of bilateral brachymetatarsia was 47%, and the female to male ratio was 10.53:1. Both these findings appear to contradict the usual data reported for brachymetatarsia. A better understanding of this disorder will enable an appropriate therapeutic approach according to the psychological and social profile of affected individuals.
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13
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Peña-Martínez VM, Palacios-Barajas D, Blanco-Rivera JC, Arnaud-Franco Á, Elizondo-Rodríguez JA, Acosta-Olivo C, Vílchez-Cavazos F, Morales-Avalos R. Results of External Fixation and Metatarsophalangeal Joint Fixation With K-Wire in Brachymetatarsia. Foot Ankle Int 2018; 39:942-948. [PMID: 29641262 DOI: 10.1177/1071100718770388] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Brachymetatarsia is a rare foot deformity caused by the premature closure of the metatarsal physis. It may result in functional as well as cosmetic alterations, which may require operative management. METHODS A prospective study examining outcomes of 48 cases of brachymetatarsia with gradual bone lengthening at a rate of 1 mm/d using an external fixator and metatarsophalangeal joint fixation was performed. The difference between the length before treatment and after external fixator removal was measured. The patients were assessed at 2, 4, 6, and 8 weeks postoperatively; at the end of the period of distraction; and 1 year after surgery. The total number of patients was 26, and surgery was performed in 48 metatarsals. The mean age was 17.0 ± 4.1 (range, 11-24) years, and all were female. RESULTS The fourth metatarsal was the most frequently affected, representing 98% of the cases; the third metatarsal represented the other 2%. The average length gained was 18.6 ± 6.7 mm, and the average length gained as a proportion of the original metatarsal length was 38.2% ± 3.1% (range, 13%-24%). The mean healing time was 71.0 (range, 64-104) days, and the mean healing index (healing time divided by centimeters of length gained [d/cm]) was 38.4 (range, 38.2-50.1) d/cm. CONCLUSION Gradual bone lengthening at a rate of 1 mm/d using an external fixator and intramedullary nailing was a safe and efficient method, representing a minimally invasive procedure with a low incidence of complications and satisfactory results for the patient. LEVEL OF EVIDENCE Level IV, retrospective case series.
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Affiliation(s)
- Víctor Manuel Peña-Martínez
- 1 Module of Politrauma, Reconstruction and External Fixation, Department of Orthopaedics and Traumatology, University Hospital "Dr. José Eleuterio González," Universidad Autónoma de Nuevo Leon, Monterrey, Nuevo León, México
| | - Dionisio Palacios-Barajas
- 1 Module of Politrauma, Reconstruction and External Fixation, Department of Orthopaedics and Traumatology, University Hospital "Dr. José Eleuterio González," Universidad Autónoma de Nuevo Leon, Monterrey, Nuevo León, México
| | - Juan Carlos Blanco-Rivera
- 1 Module of Politrauma, Reconstruction and External Fixation, Department of Orthopaedics and Traumatology, University Hospital "Dr. José Eleuterio González," Universidad Autónoma de Nuevo Leon, Monterrey, Nuevo León, México
| | - Ángel Arnaud-Franco
- 1 Module of Politrauma, Reconstruction and External Fixation, Department of Orthopaedics and Traumatology, University Hospital "Dr. José Eleuterio González," Universidad Autónoma de Nuevo Leon, Monterrey, Nuevo León, México
| | - Jorge Alberto Elizondo-Rodríguez
- 1 Module of Politrauma, Reconstruction and External Fixation, Department of Orthopaedics and Traumatology, University Hospital "Dr. José Eleuterio González," Universidad Autónoma de Nuevo Leon, Monterrey, Nuevo León, México
| | - Carlos Acosta-Olivo
- 1 Module of Politrauma, Reconstruction and External Fixation, Department of Orthopaedics and Traumatology, University Hospital "Dr. José Eleuterio González," Universidad Autónoma de Nuevo Leon, Monterrey, Nuevo León, México
| | - Félix Vílchez-Cavazos
- 1 Module of Politrauma, Reconstruction and External Fixation, Department of Orthopaedics and Traumatology, University Hospital "Dr. José Eleuterio González," Universidad Autónoma de Nuevo Leon, Monterrey, Nuevo León, México
| | - Rodolfo Morales-Avalos
- 1 Module of Politrauma, Reconstruction and External Fixation, Department of Orthopaedics and Traumatology, University Hospital "Dr. José Eleuterio González," Universidad Autónoma de Nuevo Leon, Monterrey, Nuevo León, México
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Abstract
Background Brachymetatarsia is usually treated by lengthening the metatarsals, but excessive lengthening can be associated with complications. Our technique combines 1-stage step-cut lengthening of the first metatarsal with shortening and/or lengthening of the neighboring metatarsals and/or phalanges. Methods Twenty-four feet (15 patients) were treated for first-ray brachymetatarsia. Widely available commercial image-editing software was used to make a preoperative plan for each patient, with emphasis on the creation of a cosmetically satisfying toe-length arc with minimum shortening and lengthening of the affected metatarsals and proximal phalanges. Length gain and percentage increase were also recorded postoperatively. The American Orthopaedic Foot & Ankle Society (AOFAS) hallux metatarsophalangeal-interphalangeal scoring system was used for clinical evaluation. Results In all 24 feet, smooth parabolas were created at the level of the metatarsal heads and at the toe tips. All patients showed osseous union, and no complications were noted. However, most patients showed mildly restricted range of motion of the first metatarsophalangeal joint. The mean AOFAS score of the hallux significantly improved from 88.3 preoperatively to 98.1 at the latest follow-up (p < 0.001). Conclusions One-stage step-cut lengthening of the first metatarsal combined with shortening and/or lengthening of the adjacent metatarsal and phalangeal bones provides excellent cosmetic and functional results. Level of Evidence Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.
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Affiliation(s)
- Hui Taek Kim
- Department of Orthopaedic Surgery and Biomedical Research Institute, Pusan National University Hospital, Busan, South Korea
| | - Sung Min Hong
- Department of Orthopaedic Surgery and Biomedical Research Institute, Pusan National University Hospital, Busan, South Korea
| | - In Hee Kim
- Department of Orthopaedic Surgery and Biomedical Research Institute, Pusan National University Hospital, Busan, South Korea
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15
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Woo SH, Bang CY, Ahn HC, Kim SJ, Choi JY. Anatomical reconstruction of the fourth brachymetatarsia with one-stage iliac bone and cartilage cap grafting. J Plast Reconstr Aesthet Surg 2017; 70:666-672. [DOI: 10.1016/j.bjps.2017.02.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 01/25/2017] [Accepted: 02/17/2017] [Indexed: 10/20/2022]
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16
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Barbier D, Neretin A, Journeau P, Popkov D. Gradual Metatarsal Lengthening by External Fixation: A New Classification of Complications and a Stable Technique to Minimize Severe Complications. Foot Ankle Int 2015; 36:1369-77. [PMID: 26163560 DOI: 10.1177/1071100715593373] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND The surgical management of brachymetatarsia remains controversial, and choice is based on potential complications. We report a classification of complications based on severity, and we hypothesized that use of a semicircular external fixator would minimize severe complications in lateral metatarsal lengthening. METHODS We retrospectively reviewed 30 patients (10 to 46 years old) with single or multiple brachymetatarsia and performed 54 metatarsal lengthenings with a mean follow-up of 7 months. RESULTS The mean gain in length was 15 mm (33.7%), and the mean healing index was 67 d/cm. No further procedure was performed. No dislocations or subluxations were reported, but 26 complications (48.1%) occurred, classified as 1 severe (1.8% of the metatarsals), 5 intermediate (9.3%), and 20 benign (37%): 4 incomplete osteotomies, 8 adjacent metatarsal osteotomies, 2 involuntary adjacent metatarsal fixations due to the lack of fluoroscopy use, 6 early consolidations, 2 metatarsal fractures, 2 skin complications, 1 superficial infection, and 1 metatarsophalangeal clinodactyly. CONCLUSION A classification of complications based on severity was developed. Gradual lengthening of the lateral metatarsals by semicircular external fixation reduced the risk of severe complications because of stability without donor site morbidity. Thin wires were an advantage in the pediatric population. LEVEL OF EVIDENCE Level IV, retrospective case series.
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Affiliation(s)
- Dominique Barbier
- Russian Ilizarov Scientific Center for Restorative Traumatology and Orthopaedics, Kurgan, Russia Service d'orthopédie pédiatrique, Hôpital des Enfants, CHU de Nancy, Vandoeuvre-lès-Nancy, France
| | - Andrei Neretin
- Russian Ilizarov Scientific Center for Restorative Traumatology and Orthopaedics, Kurgan, Russia
| | - Pierre Journeau
- Service d'orthopédie pédiatrique, Hôpital des Enfants, CHU de Nancy, Vandoeuvre-lès-Nancy, France
| | - Dimitry Popkov
- Russian Ilizarov Scientific Center for Restorative Traumatology and Orthopaedics, Kurgan, Russia
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17
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Forootan KS, Forootan NS, Lebaschi AH. Results of distraction callus osteogenesis in hand and foot in Iran: A 15-year experience. JOURNAL OF RESEARCH IN MEDICAL SCIENCES 2015; 20:454-9. [PMID: 26487873 PMCID: PMC4590199 DOI: 10.4103/1735-1995.163965] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Distraction osteogenesis (DS) is currently an important technique for lengthening shortened bones of the hand and foot. Authors report their experience in applying DS for various conditions of the hand and foot using a distractor that the senior author has designed. MATERIALS AND METHODS Records of patients who underwent DS for hand and foot conditions in a private clinic were retrieved between January 2001 and January 2015. Data concerning distraction, outcome, and complications were recorded. RESULTS There were 17 patients, 7 males, and 10 females with a total 24 distractions. The mean length gained was 21.2 mm (1.69) and the mean total treatment time was 198.58 (15.88) days. Overall, complications occurred in 9 (37.5%) distractions. Major complications occurred in 2 (8.33%) of distractions. Minor complications occurred in 7 (29.2%) distractions. CONCLUSION DS is an effective modality for lengthening bones of the hand and feet for both traumatic and congenital conditions. Joint stiffness/contracture is an important complication following DS of the metatarsals.
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Affiliation(s)
- Kamal Seyed Forootan
- Department of Hand and Microscopic Surgery, Fatemeh Hospital, Iran University of Medical Sciences, Tehran, Iran
| | | | - Amir Hussein Lebaschi
- Department of Plastic and Reconstructive Surgery, Fatemeh Hospital, Iran University of Medical Sciences, Tehran, Iran
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18
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Jones MD, Pinegar DM, Rincker SA. Callus Distraction Versus Single-Stage Lengthening With Bone Graft for Treatment of Brachymetatarsia: A Systematic Review. J Foot Ankle Surg 2015; 54:927-31. [PMID: 25998479 DOI: 10.1053/j.jfas.2015.02.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Indexed: 02/03/2023]
Abstract
Brachymetatarsia deformity is a cosmetically displeasing anomaly that can become physically symptomatic. The surgical techniques most commonly used to repair the anomaly include single-stage lengthening with a bone graft, callus distraction, or a combination of bone grafting and callus distraction. A systematic review of the published data was performed to compare the outcomes of these 3 surgical procedures. A total of 61 studies reporting the use of callus distraction or single-stage lengthening, or both, for the treatment of brachymetatarsia were included in the present review. The incidence of major postoperative complications after callus distraction, single-stage lengthening, and the combination procedure was 49 (12.62%), 13 (3.72%), and 3 (33.33%), respectively. The number of minor complications with callus distraction, single-stage lengthening, and the combination procedure was 152 (39.18%), 55 (15.76%), and 1 (11.11%); the mean percentage of the original length achieved was 37.36%, 25.98% and 36.00%; and the mean length achieved was 17.5, 13.2, and 14.0 mm, respectively. The healing index (mo/cm) and healing time was 2.31 and 16.04 weeks, 1.90 and 9.35 weeks, and 3.93 and 14.62 weeks for callus distraction, single-stage lengthening, and the combination procedure, respectively. Our findings indicate that the callus distraction technique is associated with greater length gained but results in greater complication rates and requires almost twice the time to heal. Single-stage lengthening with a bone graft was associated with fewer complications and faster healing times than callus distraction but with lesser gains in length. From the information reported in the studies we reviewed, the prevalence of bilateral brachymetatarsia was 44.52%, and the female/male ratio was 13.7:1. Both of these findings seem to contradict the usual data given (72% for bilateral brachymetatarsia and a female/male ratio of 25:1).
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Affiliation(s)
- Marc D Jones
- Staff Podiatrist, Mann-Grandstaff Veterans Affairs Medical Center, Spokane, WA.
| | | | - Sarah A Rincker
- Private Practitioner, Eugene Foot and Ankle Health Center, Eugene, OR
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19
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Haleem AM, Mintz DN, Rozbruch SR. Metatarsophalangeal arthritis following fourth metatarsal lengthening treated with distraction arthroplasty: case report. Foot Ankle Int 2014; 35:1075-81. [PMID: 25037710 DOI: 10.1177/1071100714543648] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Amgad M Haleem
- Limb Lengthening and Complex Reconstruction Service, Department of Orthopaedic Surgery, Hospital for Special Surgery, Weill Cornell Medical College, Cornell University, New York, NY, USA
| | - Douglas N Mintz
- Department of Radiology and Imaging, Hospital for Special Surgery, Weill Cornell Medical College, Cornell University, New York, NY, USA
| | - S Robert Rozbruch
- Limb Lengthening and Complex Reconstruction Service, Department of Orthopaedic Surgery, Hospital for Special Surgery, Weill Cornell Medical College, Cornell University, New York, NY, USA
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20
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Makridis KG, Theocharakis S, Fragkakis EM, Giannoudis PV. Reconstruction of an extensive soft tissue and bone defect of the first metatarsal with the use of Masquelet technique: a case report. Foot Ankle Surg 2014; 20:e19-22. [PMID: 24796840 DOI: 10.1016/j.fas.2013.11.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Revised: 10/10/2013] [Accepted: 11/28/2013] [Indexed: 02/04/2023]
Abstract
UNLABELLED The literature regarding reconstruction of foot bone defects is limited. The purpose of this study is to present a case report with an extensive bone defect of the first metatarsal bone which was treated with the use of the induced membrane technique. A 53-year-old man, with comminuted foot grade IIIb open fracture was treated with the Masquelet procedure. At 14 months follow-up, clinical and radiological assessment of the foot revealed osseous healing and no signs of infection, osteolysis or hardware failure. At 18 months follow-up, the patient had no pain and returned to his usual daily activities. The Masquelet procedure provides an effective method of treatment of extensive bone defects of the foot. It can restore the normal length and metatarsal arch minimizing the risk of complications that occurs with other surgical procedures. LEVEL OF EVIDENCE Level V, case report.
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Affiliation(s)
- Konstantinos G Makridis
- Academic Department of Trauma and Orthopaedics, School of Medicine, University of Leeds, Leeds General Infirmary, Clarendon Wing Level A, Great George Street, LS1 3EX, Leeds, UK.
| | - Stelios Theocharakis
- Academic Department of Trauma and Orthopaedics, School of Medicine, University of Leeds, Leeds General Infirmary, Clarendon Wing Level A, Great George Street, LS1 3EX, Leeds, UK.
| | - Evangelos Minas Fragkakis
- Academic Department of Trauma and Orthopaedics, School of Medicine, University of Leeds, Leeds General Infirmary, Clarendon Wing Level A, Great George Street, LS1 3EX, Leeds, UK.
| | - Peter V Giannoudis
- Academic Department of Trauma and Orthopaedics, School of Medicine, University of Leeds, Leeds General Infirmary, Clarendon Wing Level A, Great George Street, LS1 3EX, Leeds, UK.
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21
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Gourdine-Shaw MC, Lamm BM, Paley D, Herzenberg JE. Distraction osteogenesis for complex foot deformities: U-osteotomy with external fixation. J Bone Joint Surg Am 2012; 94:1420-7. [PMID: 22854996 DOI: 10.2106/jbjs.k.00360] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Certain complex foot deformities can be corrected surgically with a U-osteotomy. This osteotomy is indicated for patients with a uniform deformity of the entire foot relative to the tibia, preexisting stiffness and/or fusion of the subtalar joint, and a pain-free ankle joint. The goal is to create a plantigrade foot through gradual osseous repositioning of the entire foot relative to the tibia by means of external fixation. If needed, foot height can be increased simultaneously. METHODS Fifteen complex multiplanar foot deformities in fifteen patients were treated with a U-osteotomy and gradual correction by means of external fixation. Deformities resulted from congenital causes (seven), trauma (three), and developmental causes (five). The mean patient age at the time of surgery was twenty years (range, four to sixty-three years). The mean duration of external fixation was five months (range, three to eleven months). The mean duration of follow-up was five years (range, three to nineteen years). Clinical and radiographic results were assessed. RESULTS Osseous union and a plantigrade foot were achieved in all fifteen patients. Seven complications related to the U-osteotomy occurred in four patients, including deep pin-track infection in two, premature osseous consolidation in two, postoperative tarsal tunnel syndrome in two, and peroneal nerve entrapment in one. When comparing the preoperative and final postoperative radiographs, three significant differences were observed: the calcaneotibial angle changed by a mean of 18° valgus (range, 6° to 40° valgus) (p = 0.003), the calcaneus was translated posteriorly by a mean of -8 mm (range, -2 to -20 mm) (p = 0.001), and foot height increased by a mean of 20 mm (range, 3 to 40 mm) (p < 0.001). Fourteen patients were able to walk without supports or assistance; one used only one cane or crutch to walk. CONCLUSIONS U-osteotomy with gradual correction by means of external fixation can be used to obtain a plantigrade foot in patients with complex multiplanar deformities of the foot relative to the tibia.
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Affiliation(s)
- Monique C Gourdine-Shaw
- Department of Podiatry, Medical Service Corps, United States Navy, National Naval Medical Center, Bethesda, MD 20889-5600, USA
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22
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A new surgical procedure for brachymetatarsia by a hydroxyapatite graft. EUROPEAN JOURNAL OF PLASTIC SURGERY 2012. [DOI: 10.1007/s00238-012-0729-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Affiliation(s)
- Randall C Marx
- The San Antonio Orthopedic Group, 2829 Babcock Road, Suite #700, San Antonio, TX 78229, USA
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Affiliation(s)
- Sanjeev Sabharwal
- Department of Orthopaedics and Pediatrics, UMDNJ-New Jersey Medical School, Newark, NJ 07103, USA.
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25
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Abstract
The treatment of congenital abnormalities of the lesser toes should be individualized to the pathology present. Goals of treatment include pain relief, proper alignment of the toes, and comfort with wearing shoes. Meticulous surgical technique can minimize complications and optimize clinical outcomes for these patients.
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Affiliation(s)
- Ho-Seong Lee
- Department of Orthopaedic Surgery, Asan Medical Center, College of Medicine, Ulsan University, 388-1 Pungnap-dong, Songpa-gu, Seoul 138-736, South Korea
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26
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Lee KB, Park HW, Chung JY, Moon ES, Jung ST, Seon JK. Distraction Osteogenesis for First and Fourth Brachymetatarsia: Based on an original article: J Bone Joint Surg Am. 2010;92:2709-18. JBJS Essent Surg Tech 2011; 1:e1. [PMID: 33738126 DOI: 10.2106/jbjs.st.k.00004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Keun-Bae Lee
- Department of Orthopaedics, Chonnam National University Medical School and Hospital, 671, Jebongro, Donggu, Gwangju, 501-757, Republic of Korea. E-mail address:
| | - Hyeong-Won Park
- Department of Orthopaedics, Chonnam National University Medical School and Hospital, 671, Jebongro, Donggu, Gwangju, 501-757, Republic of Korea. E-mail address:
| | - Jae-Yoon Chung
- Department of Orthopaedics, Chonnam National University Medical School and Hospital, 671, Jebongro, Donggu, Gwangju, 501-757, Republic of Korea. E-mail address:
| | - Eun-Sun Moon
- Department of Orthopaedics, Chonnam National University Medical School and Hospital, 671, Jebongro, Donggu, Gwangju, 501-757, Republic of Korea. E-mail address:
| | - Sung-Taek Jung
- Department of Orthopaedics, Chonnam National University Medical School and Hospital, 671, Jebongro, Donggu, Gwangju, 501-757, Republic of Korea. E-mail address:
| | - Jong-Keun Seon
- Department of Orthopaedics, Chonnam National University Medical School and Hospital, 671, Jebongro, Donggu, Gwangju, 501-757, Republic of Korea. E-mail address:
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