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Hosty L, Heatherington T, Quondamatteo F, Browne S. Extracellular matrix-inspired biomaterials for wound healing. Mol Biol Rep 2024; 51:830. [PMID: 39037470 PMCID: PMC11263448 DOI: 10.1007/s11033-024-09750-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Accepted: 06/21/2024] [Indexed: 07/23/2024]
Abstract
Diabetic foot ulcers (DFU) are a debilitating and life-threatening complication of Diabetes Mellitus. Ulceration develops from a combination of associated diabetic complications, including neuropathy, circulatory dysfunction, and repetitive trauma, and they affect approximately 19-34% of patients as a result. The severity and chronic nature of diabetic foot ulcers stems from the disruption to normal wound healing, as a result of the molecular mechanisms which underly diabetic pathophysiology. The current standard-of-care is clinically insufficient to promote healing for many DFU patients, resulting in a high frequency of recurrence and limb amputations. Biomaterial dressings, and in particular those derived from the extracellular matrix (ECM), have emerged as a promising approach for the treatment of DFU. By providing a template for cell infiltration and skin regeneration, ECM-derived biomaterials offer great hope as a treatment for DFU. A range of approaches exist for the development of ECM-derived biomaterials, including the use of purified ECM components, decellularisation and processing of donor/ animal tissues, or the use of in vitro-deposited ECM. This review discusses the development and assessment of ECM-derived biomaterials for the treatment of chronic wounds, as well as the mechanisms of action through which ECM-derived biomaterials stimulate wound healing.
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Affiliation(s)
- Louise Hosty
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland, 123, St Stephen's Green, Dublin 2, Ireland
| | - Thomas Heatherington
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland, 123, St Stephen's Green, Dublin 2, Ireland
| | - Fabio Quondamatteo
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland, 123, St Stephen's Green, Dublin 2, Ireland.
| | - Shane Browne
- Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland, 123, St Stephen's Green, Dublin 2, Ireland.
- CÙRAM, Centre for Research in Medical Devices, University of Galway, Galway, H91 W2TY, Ireland.
- Trinity Centre for Biomedical Engineering, Trinity College Dublin, Dublin 2, Ireland.
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Kaszyk EM, Commean PK, Meyer GA, Smith G, Jeong HJ, York A, Chen L, Mueller MJ, Zellers JA, Hastings MK. Use of computed tomography to identify muscle quality subgroups, spatial mapping, and preliminary relationships to function in those with diabetic peripheral neuropathy. Gait Posture 2024; 112:159-166. [PMID: 38797052 PMCID: PMC11265324 DOI: 10.1016/j.gaitpost.2024.05.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 04/16/2024] [Accepted: 05/13/2024] [Indexed: 05/29/2024]
Abstract
BACKGROUND Decreased muscle volume and increased muscle-associated adipose tissue (MAAT, sum of intra and inter-muscular adipose tissue) of the foot intrinsic muscle compartment are associated with deformity, decreased function, and increased risk of ulceration and amputation in those with diabetic peripheral neuropathy (DPN). RESEARCH QUESTION What is the muscle quality (normal, abnormal muscle, and adipose volumes) of the DPN foot intrinsic compartment, how does it change over time, and is muscle quality related to gait and foot function? METHODS Computed tomography was performed on the intrinsic foot muscle compartment of 45 subjects with DPN (mean age: 67.2 ± 6.4 years) at baseline and 3.6 years. Images were processed to obtain volumes of MAAT, highly abnormal, mildly abnormal, and normal muscle. For each category, annual rates of change were calculated. Paired t-tests compared baseline and follow-up. Foot function during gait was assessed using 3D motion analysis and the Foot and Ankle Ability Measure. Correlations between muscle compartment and foot function during gait were analyzed using Pearson's correlations. RESULTS Total muscle volume decreased, driven by a loss of normal muscle and mildly abnormal muscle (p<0.05). MAAT and the adipose-muscle ratio increased. At baseline, 51.5% of the compartment was abnormal muscle or MAAT, increasing to 55.0% at follow-up. Decreased total muscle volume correlated with greater midfoot collapse during gait (r = -0.40, p = 0.02). Greater volumes of highly abnormal muscle correlated with a lower FAAM score (r = -0.33, p = 0.03). SIGNIFICANCE Muscle volume loss may progress in parallel with MAAT accumulation, impacting contractile performance in individuals with DPN. Only 48.5% of the DPN intrinsic foot muscle compartment consists of normal muscle and greater abnormal muscle is associated with worse foot function. These changes identify an important target for rehabilitative intervention to slow or prevent muscle deterioration and poor foot outcomes.
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Affiliation(s)
- Emilia M Kaszyk
- Program in Physical Therapy, Washington University School of Medicine, St. Louis, MO, USA
| | - Paul K Commean
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO, USA
| | - Gretchen A Meyer
- Program in Physical Therapy, Washington University School of Medicine, St. Louis, MO, USA; Department of Orthopaedic Surgery, Washington University in St. Louis, MO, USA; Center of Regenerative Medicine, Washington University in St. Louis, MO, USA; Department of Biomedical Engineering, Washington University in St. Louis, MO, USA; Department of Neurology, Washington University in St. Louis, St Louis, MO, USA
| | - Gabrielle Smith
- Program in Physical Therapy, Washington University School of Medicine, St. Louis, MO, USA
| | - Hyo-Jung Jeong
- Program in Physical Therapy, Washington University School of Medicine, St. Louis, MO, USA; Orthopaedic and Rehabilitation Engineering Center, Marquette University, Milwaukee, WI, USA; Department of Rehabilitation Sciences & Technology, University of Wisconsin-Milwaukee, Milwaukee, WI, USA
| | - Alexa York
- Program in Physical Therapy, Washington University School of Medicine, St. Louis, MO, USA
| | - Ling Chen
- Division of Biostatistics, Washington University School of Medicine, St. Louis, MO, USA
| | - Michael J Mueller
- Program in Physical Therapy, Washington University School of Medicine, St. Louis, MO, USA
| | - Jennifer A Zellers
- Program in Physical Therapy, Washington University School of Medicine, St. Louis, MO, USA; Department of Orthopaedic Surgery, Washington University in St. Louis, MO, USA
| | - Mary K Hastings
- Program in Physical Therapy, Washington University School of Medicine, St. Louis, MO, USA; Department of Orthopaedic Surgery, Washington University in St. Louis, MO, USA.
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Wu H, Hu Y, Wang Z, Liu Y, Han J, Zhang C, Zhai Z, Liu J. Free vascularized fibula leads to hallux toe flexion deformity due to ischemic muscle contracture of flexor hallucis longus. Head Neck 2024; 46:1390-1399. [PMID: 38468132 DOI: 10.1002/hed.27719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 02/19/2024] [Accepted: 02/25/2024] [Indexed: 03/13/2024] Open
Abstract
BACKGROUND This study aimed to investigate the incidence of toe flexion deformity after fibular free flap transplantation and to analyze the etiology of the deformity. METHODS Fifty patients underwent vascularized fibular free flap transplantation were retrospectively included. Statistical analysis examined correlations between deformity occurrence and resected fibula length and residual distal fibula length using the χ2 test. Doppler ultrasound and anatomical evaluations were conducted. RESULTS Flexion deformity of the first toe was observed in all patients (100%), exacerbated by ankle dorsiflexion. χ2 test revealed no significant correlation between fibula length, distal residual fibula length, and flexion deformity. Doppler ultrasound revealed elevated echoes and blurred textures in the flexor hallucis longus post-fibular transplantation, while anatomical evaluation confirmed the peroneal artery as its primary nutrient supplier. CONCLUSION This study reports a 100% incidence of toe flexion deformity post-transplantation. The deformity correlated strongly with ischemic contracture of the flexor hallucis longus.
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Affiliation(s)
- Hao Wu
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
- Department of Oral Maxillofacial-head and Neck Oncology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuehao Hu
- Shanghai Key Laboratory of Orthopaedic Implant, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zilin Wang
- Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Jilin University, Changchun, China
| | - Yige Liu
- Department of Oral Maxillofacial-head and Neck Oncology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- National Clinical Research Center for Oral Diseases, Shanghai, China
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
- National Center for Stomatology, shanghai, China
| | - Jing Han
- Department of Oral Maxillofacial-head and Neck Oncology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- National Clinical Research Center for Oral Diseases, Shanghai, China
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
- National Center for Stomatology, shanghai, China
| | - Chenping Zhang
- Department of Oral Maxillofacial-head and Neck Oncology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- National Clinical Research Center for Oral Diseases, Shanghai, China
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
- National Center for Stomatology, shanghai, China
| | - Zanjing Zhai
- Shanghai Key Laboratory of Orthopaedic Implant, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jiannan Liu
- Department of Oral Maxillofacial-head and Neck Oncology, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- National Clinical Research Center for Oral Diseases, Shanghai, China
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
- National Center for Stomatology, shanghai, China
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Sato R, Hamada H, Uemura K, Takashima K, Ando W, Takao M, Saito M, Sugano N. Leg length discrepancy should be assessed based on the whole length of the lower limb in patients with osteoarthritis secondary to developmental dysplasia of the hip. Bone Jt Open 2024; 5:79-86. [PMID: 38295838 PMCID: PMC10830171 DOI: 10.1302/2633-1462.52.bjo-2023-0152.r1] [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: 02/05/2024] Open
Abstract
Aims This study aimed to investigate the incidence of ≥ 5 mm asymmetry in lower and whole leg lengths (LLs) in patients with unilateral osteoarthritis (OA) secondary to developmental dysplasia of the hip (DDH-OA) and primary hip osteoarthritis (PHOA), and the relationship between lower and whole LL asymmetries and femoral length asymmetry. Methods In total, 116 patients who underwent unilateral total hip arthroplasty were included in this study. Of these, 93 had DDH-OA and 23 had PHOA. Patients with DDH-OA were categorized into three groups: Crowe grade I, II/III, and IV. Anatomical femoral length, femoral length greater trochanter (GT), femoral length lesser trochanter (LT), tibial length, foot height, lower LL, and whole LL were evaluated using preoperative CT data of the whole leg in the supine position. Asymmetry was evaluated in the Crowe I, II/III, IV, and PHOA groups. Results The incidences of whole and lower LL asymmetries were 40%, 62.5%, 66.7%, and 26.1%, and 21.7%, 20.8%, 55.6%, and 8.7% in the Crowe I, II/III, and IV, and PHOA groups, respectively. The incidence of tibial length asymmetry was significantly higher in the Crowe IV group (44.4%) than that in the PHOA group (4.4%). In all, 50% of patients with DDH-OA with femoral length GT and LT asymmetries had lower LL asymmetry, and 75% had whole LL asymmetry. The incidences of lower and whole LL asymmetries were 20% and 42.9%, respectively, even in the absence of femoral length GT and LT asymmetries. Conclusion Overall, 43% of patients with unilateral DDH-OA without femoral length asymmetry had whole LL asymmetry of ≥ 5 mm. Thus, both the femur length and whole LL should be measured to accurately assess LL discrepancy in patients with unilateral DDH-OA.
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Affiliation(s)
- Ryuichi Sato
- Department of Orthopaedic Medical Engineering, Osaka University Graduate School of Medicine, Suita, Japan
- Department of Orthopaedic Surgery, The Jikei University School of Medicine, Tokyo, Japan
| | - Hidetoshi Hamada
- Department of Orthopaedic Medical Engineering, Osaka University Graduate School of Medicine, Suita, Japan
| | - Keisuke Uemura
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Kazuma Takashima
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Wataru Ando
- Department of Orthopaedic Medical Engineering, Osaka University Graduate School of Medicine, Suita, Japan
| | - Masaki Takao
- Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Suita, Japan
| | - Mitsuru Saito
- Department of Orthopaedic Surgery, The Jikei University School of Medicine, Tokyo, Japan
| | - Nobuhiko Sugano
- Department of Orthopaedic Medical Engineering, Osaka University Graduate School of Medicine, Suita, Japan
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Tiruveedhula M, Kavarthapu V. Managing Cavovarus Feet in Diabetic Patients. Foot Ankle Clin 2023; 28:873-887. [PMID: 37863541 DOI: 10.1016/j.fcl.2023.05.006] [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] [Indexed: 10/22/2023]
Abstract
A cavovarus foot is characterized by exacerbated medial longitudinal arch (cavus), hindfoot varus, plantar flexed first ray, forefoot pronation (apparent supination), forefoot adduction, and claw toe deformities. It can be broadly divided as flexible and rigid and further classified based on the neurological and non-neurological causes. Diabetes associated peripheral neuropathy complicates individual bony deformities associated with cavovarus foot with early callus which can breakdown to ulceration rapidly. Based on the disease progression in neurological and non-neurological causes of cavovarus feet in patients with diabetic neuropathy, 3 stages of the disease and its management is described.
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Affiliation(s)
- Madhu Tiruveedhula
- Mid & South Essex Foundation NHS Trust, Basildon Hospital, Nethermayne, Basildon SS16 5NL, UK.
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Yoshida K, Miura Y, Nakanishi S, Tanaka S, Kuniyasu K, Matsumoto S, Hanayama K. The impact of diabetic polyneuropathy on toe grip strength in patients with type 2 diabetes mellitus: a cross-sectional study. J Diabetes Metab Disord 2023; 22:1391-1397. [PMID: 37969917 PMCID: PMC10638331 DOI: 10.1007/s40200-023-01260-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Accepted: 07/01/2023] [Indexed: 11/17/2023]
Abstract
Purpose Type 2 diabetes mellitus (T2DM) and concomitant diabetic polyneuropathy (DPN) induce muscle weakness. Muscle weakness in the foot is associated with foot deformities and falls. However, factors affecting toe grip strength (TGS) are not well known. Therefore, the present study investigated factors related to TGS in patients with T2DM. Methods This was a cross-sectional study involving 100 patients with T2DM who were hospitalized for the treatment of T2DM and 50 healthy adults. The subjects were divided into three groups: a group of healthy subjects, a group of T2DM patients without DPN, and a group of T2DM patients with DPN. Hierarchical multiple regression analysis was performed with TGS and the TGS-to-weight ratio (TGS/Wt%) as dependent variables and with age, the presence of T2DM, and DPN as independent variables, and sex and BMI as confounders. Results There were no significant differences in age or sex among the three groups. In the final regression analysis, age and presence of T2DM and DPN were associated in both models with TGS and TGS/Wt% as dependent variables. Conclusion DPN, T2DM, and age were found to be related to TGS. The findings of this study could contribute to healthcare providers developing foot care and rehabilitation programs for diabetic patients. Trial registration This study was registered with UMIN-CTR (UMIN000034320) on 1 November 2018.
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Affiliation(s)
- Koji Yoshida
- Department of Rehabilitation Science, Kobe University Graduate School of Health Sciences, Kobe, Japan
- Department of Rehabilitation Center, Kawasaki Medical School Hospital, Kurashiki, Japan
| | - Yasushi Miura
- Department of Rehabilitation Science, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - Shuhei Nakanishi
- Division of Diabetes, Metabolism and Endocrinology, Kawasaki Medical School, Kurashiki, Japan
| | - Shigeharu Tanaka
- School of Rehabilitation, Kanagawa University of Human Services, Yokosuka, Japan
| | - Katsushi Kuniyasu
- Department of Physical Therapist, Faculty of Rehabilitation, Kawasaki University of Medical Welfare, Kurashiki, Japan
| | - Shinsuke Matsumoto
- Department of Physical Therapist, Kawasaki Junior College of Rehabilitation, Kurashiki, Japan
| | - Kozo Hanayama
- Department of Rehabilitation Medicine, Kawasaki Medical School, Kurashiki, Japan
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Adebabay AA, Worede AG, Sume BW, Mihiret GT, Shimelash RA, Goshu BT. Prevalence and associated factors of foot deformity among adult diabetic patients on follow-up at Debre Markos comprehensive specialized hospital, Northwest Ethiopia, 2022, cross-sectional study. BMC Endocr Disord 2023; 23:265. [PMID: 38037014 PMCID: PMC10687907 DOI: 10.1186/s12902-023-01519-8] [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: 03/15/2023] [Accepted: 11/22/2023] [Indexed: 12/02/2023] Open
Abstract
INTRODUCTION Diabetes foot deformity is among the major causes of diabetic foot ulceration, resulting in lower limb amputation. However, the study on the distribution of foot deformity and its risk factor among diabetic patients in Ethiopia is limited. This study determined the overall prevalence and associated factors of foot deformity among adult diabetic patients on follow-up at Debre Markos Comprehensive Specialized Hospital, Northwest Ethiopia. METHODS Hospital-based cross-sectional study was conducted among 392 diabetic patients using a systematic random sampling technique at Debre Markos Comprehensive Specialized Hospital. Data were collected by pre-tested, semi-structured questionnaires and diabetic foot assessment format. Multivariable binary logistic regression was used to determine the association between dependent and independent variables. Adjusted odds ratios (AOR) with their 95% confidence interval (CI) were used to determine the strength of the association, and a variable with a p-value < 0.05 was statistically significant factors of diabetes foot deformity. RESULT The overall prevalence of foot deformity was 33.4% [95% CI: 28.9-38.3]. In the final logistic regression analysis, rural residency [AOR = 2.64, 95% CI: 1.31, 5.31], poor glycemic control [AOR = 2.41; 95% CI: 1.34, 4.33], diabetes duration ≥ 10 years [AOR = 2.74; 95% CI: 1.50, 5.02], inadequate footwear [AOR = 2.11; 95% CI: 1.17, 3.82] and presence of peripheral neuropathy [AOR = 8.21; 95% CI: 4.54, 14.84] were statistically significant associated factors with diabetes foot deformity. CONCLUSION The prevalence of foot deformity among adult diabetic patients was high. It is recommended to incorporate foot deformity screening in routine diabetic patient follow-ups especially for those with poor glycaemic control, rural residency, long diabetes duration, inadequate footwear, and diabetic peripheral neuropathy.
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Affiliation(s)
- Aderajew Agmass Adebabay
- Department of Biomedical science, School of Medicine, College of Medicine and Health Sciences, Debre Markos University, Debre Markos, Ethiopia.
| | - Amanuel Girma Worede
- Department of Human Anatomy, School of Medicine, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Bickes Wube Sume
- Department of Biomedical science, School of Medicine, College of Medicine and Health Sciences, Debre Markos University, Debre Markos, Ethiopia
| | - Getachew Tilaye Mihiret
- Department of Midwifery, Medicine and College of Health Sciences, Debre Markos University, Debre Markos, Ethiopia
| | - Rahel Asres Shimelash
- Department of pediatric Nursing, Medicine and College of Health Sciences, Debre Markos University, Debre Markos, Ethiopia
| | - Bahiru Tenaw Goshu
- Department of Human Anatomy, School of Medicine, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
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Tiruveedhula M, Graham A, Thapar A, Dindyal S, Mulcahy M. A 2-Stage Approach in Managing Diabetic Forefoot Ulcers. Foot Ankle Int 2023; 44:1085-1094. [PMID: 37937719 DOI: 10.1177/10711007231191132] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Abstract
BACKGROUND Forefoot plantar ulcers in patients with diabetic neuropathy are considered to be primarily the result of increased shear forces applied over prominent plantar bony prominences. The purpose of this article is to describe a 2-stage treatment pathway utilizing an outpatient percutaneous tendon-Achilles lengthening (TAL) as the first stage procedure and subsequent proximal metatarsal osteotomy (MTO) as a second stage procedure for a persistent or recurrent ulcer. METHODS A consecutive 112 patients (146 feet), who presented to our Multidisciplinary Diabetic Foot Team clinics since February 2019 with plantar nonischemic forefoot ulcers were included in this study. Excluding the patients who died or were lost to follow-up, 96 feet were followed for a minimum 12 months (range 12-36 months). After TAL, patients were encouraged to walk in a walking cast for 6 weeks and were followed for a minimum 12 months. Patients with persistent or recurrent ulcers were investigated with magnetic resonance imaging scan, and based on intramedullary osteomyelitis and septic destruction of distal metatarsal, we describe a second-stage MTO with the 3 most common clinical presentations. RESULTS Of 96 feet, none had infection or wound-related problems following TAL. Complete transection of the tendon was noted in 4 patients (4%) and heel callosity in 1 patient. In 92 feet (96%), the ulcers healed within 10 weeks (±4 weeks) after TAL but, in 12 feet (10%), the ulcer failed to heal or recurred. At a minimum 12 months after the second-stage MTO, none in this subgroup had recurrence of ulcer or a transfer lesion. CONCLUSION TAL followed with a walking cast as an outpatient procedure was effective in healing forefoot ulcers in 96% of feet. Comparable to the widely practiced hand surgery Wide Awake Local Anesthesia No Tourniquet (WALANT) procedure, our approach involved active control of the degree of ankle dorsiflexion by the patient, and the procedure was proven to be safe and well tolerated. When the second-stage MTO was required to offload the forefoot, in our small cohort, patients had ulcer-free outcome for a minimum 12 months. LEVEL OF EVIDENCE Level IV, retrospective case series.
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Affiliation(s)
- Madhu Tiruveedhula
- Basildon Hospital, Mid and South Essex University Foundation Trust, Basildon, United Kingdom
| | - Anna Graham
- Basildon Hospital, Mid and South Essex University Foundation Trust, Basildon, United Kingdom
| | - Ankur Thapar
- Basildon Hospital, Mid and South Essex University Foundation Trust, Basildon, United Kingdom
| | - Shiva Dindyal
- Basildon Hospital, Mid and South Essex University Foundation Trust, Basildon, United Kingdom
| | - Michael Mulcahy
- Basildon Hospital, Mid and South Essex University Foundation Trust, Basildon, United Kingdom
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Brady LM, Rombokas E, Wang YN, Shofer JB, Ledoux WR. The effect of diabetes and tissue depth on adipose chamber size and plantar soft tissue features. Foot (Edinb) 2023; 56:101989. [PMID: 36905794 PMCID: PMC10450093 DOI: 10.1016/j.foot.2023.101989] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 02/19/2023] [Accepted: 02/23/2023] [Indexed: 03/13/2023]
Abstract
BACKGROUND Plantar ulceration is a serious complication of diabetes. However, the mechanism of injury initiating ulceration remains unclear. The unique structure of the plantar soft tissue includes superficial and deep layers of adipocytes contained in septal chambers, however, the size of these chambers has not been quantified in diabetic or non-diabetic tissue. Computer-aided methods can be leveraged to guide microstructural measurements and differences with disease status. METHODS Adipose chambers in whole slide images of diabetic and non-diabetic plantar soft tissue were segmented with a pre-trained U-Net and area, perimeter, and minimum and maximum diameter of adipose chambers were measured. Whole slide images were classified as diabetic or non-diabetic using the Axial-DeepLab network, and the attention layer was overlaid on the input image for interpretation. RESULTS Non-diabetic deep chambers were 90 %, 41 %, 34 %, and 39 % larger in area (26,954 ± 2428 µm2 vs 14,157 ± 1153 µm2), maximum (277 ± 13 µm vs 197 ± 8 µm) and minimum (140 ± 6 µm vs 104 ± 4 µm) diameter, and perimeter (405 ± 19 µm vs 291 ± 12 µm), respectively, than the superficial (p < 0.001). However, there was no significant difference in these parameters in diabetic specimens (area 18,695 ± 2576 µm2 vs 16627 ± 130 µm2, maximum diameter 221 ± 16 µm vs 210 ± 14 µm, minimum diameter 121 ± 8 µm vs 114 ± 7 µm, perimeter 341 ± 24 µm vs 320 ± 21 µm). Between diabetic and non-diabetic chambers, only the maximum diameter of the deep chambers differed (221 ± 16 µm vs 277 ± 13 µm). The attention network achieved 82 % accuracy on validation, but the attention resolution was too coarse to identify meaningful additional measurements. CONCLUSIONS Adipose chamber size differences may provide a basis for plantar soft tissue mechanical changes with diabetes. Attention networks are promising tools for classification, but additional care is required when designing networks for identifying novel features. DATA AVAILABILITY All images, analysis code, data, and/or other resources required to replicate this work are available from the corresponding author upon reasonable request.
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Affiliation(s)
- Lynda M Brady
- VA RR& D Center for Limb Loss and MoBility, Seattle, WA 98108, USA; Department of Mechanical Engineering, University of Washington, Seattle, WA 98195, USA
| | - Eric Rombokas
- Department of Mechanical Engineering, University of Washington, Seattle, WA 98195, USA
| | - Yak-Nam Wang
- VA RR& D Center for Limb Loss and MoBility, Seattle, WA 98108, USA; Center for Industrial and Medical Ultrasound, Applied Physics Laboratory, University of Washington, Seattle, WA 98195, USA
| | - Jane B Shofer
- VA RR& D Center for Limb Loss and MoBility, Seattle, WA 98108, USA
| | - William R Ledoux
- VA RR& D Center for Limb Loss and MoBility, Seattle, WA 98108, USA; Department of Mechanical Engineering, University of Washington, Seattle, WA 98195, USA; Department of Orthopaedics & Sports Medicine, University of Washington, Seattle, WA 98195, USA.
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Zaottini F, Picasso R, Pistoia F, Perez MM, Bianco D, Simone R, Rossi G, Macciò M, Pansecchi M, Tovt L, Martinoli C. Ultrasound of the plantar foot: a guide for the assessment of plantar intrinsic muscles. J Ultrason 2023; 23:e151-e160. [PMID: 37732108 PMCID: PMC10508328 DOI: 10.15557/jou.2023.0024] [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] [Received: 04/01/2023] [Accepted: 05/29/2023] [Indexed: 09/22/2023] Open
Abstract
Plantar intrinsic muscles play a pivotal role in posture control and gait dynamics. They help maintain the longitudinal and transverse arches of the foot, and they regulate the degree and velocity of arch deformation during walking or running. Consequently, pathologies affecting the plantar intrinsic muscles (for instance, acquired and inherited neuropathies) lead to foot deformity, gait disorders, and painful syndromes. Intrinsic muscle malfunctioning is also associated with multifactorial overuse or degenerative conditions such as pes planus, hallux valgus, and plantar fasciitis. As the clinical examination of each intrinsic muscle is challenging, ultrasound is gaining a growing interest as an imaging tool to investigate the trophism of these muscular structures and the pattern of their alterations, and potentially to follow up on the effects of dedicated rehabilitation protocols. The ten plantar intrinsic muscles can be dived into three groups (medial, central and lateral) and four layers. Here, we propose a regional and landmark-based approach to the complex sonoanatomy of the plantar intrinsic muscles in order to facilitate the correct identification of each muscle from the superficial to the deepest layer. We also summarize the pathological ultrasound findings that can be encountered when scanning the plantar muscles, pointing out the patterns of alterations specific to certain conditions, such as plantar nerves mononeuropathies.
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Affiliation(s)
- Federico Zaottini
- Department of Radiology, IRCCS Policlinico San Martino, Genoa, Italy
| | - Riccardo Picasso
- Department of Radiology, IRCCS Policlinico San Martino, Genoa, Italy
| | - Federico Pistoia
- Department of Radiology, IRCCS Policlinico San Martino, Genoa, Italy
| | - Maribel Miguel Perez
- Unit of Human Anatomy and Embryology, Department of Pathology and Experimental Therapeutics, Faculty of Medicine and Health Sciences (Bellvitge Campus), University of Barcelona, Barcelona, Spain
| | - Deborah Bianco
- Department of Health Sciences (DISSAL), University of Genoa, Genoa, Italy
| | - Rinaldi Simone
- Department of Health Sciences (DISSAL), University of Genoa, Genoa, Italy
| | - Gabriele Rossi
- Department of Health Sciences (DISSAL), University of Genoa, Genoa, Italy
| | - Marta Macciò
- Department of Health Sciences (DISSAL), University of Genoa, Genoa, Italy
| | - Michelle Pansecchi
- Department of Health Sciences (DISSAL), University of Genoa, Genoa, Italy
| | - Luca Tovt
- Department of Health Sciences (DISSAL), University of Genoa, Genoa, Italy
| | - Carlo Martinoli
- Department of Radiology, IRCCS Policlinico San Martino, Genoa, Italy
- Department of Health Sciences (DISSAL), University of Genoa, Genoa, Italy
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11
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Sonoda Y, Maeshige N, Uemura M, Imaoka S, Kawabe N, Hayashi H, Fujii M, Tsuji Y, Furukawa M, Kohzuki M, Terashi H. Effect of Partial Foot Amputation Level on Gait Independence in Patients With Chronic Lower Extremity Wounds: A Retrospective Analysis of a Japanese Multicenter Database. INT J LOW EXTR WOUND 2023:15347346231158864. [PMID: 36814399 DOI: 10.1177/15347346231158864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Partial foot amputation (PFA) is generally planned to minimize the amputation level; nonetheless, the effect of PFA levels on gait independence in amputees remains unclear. This study aimed to investigate the impact of PFA levels of the forefoot on gait independence in patients with chronic lower extremity (LE) wounds. This multicenter retrospective cohort study included 232 hospitalized Japanese patients treated and rehabilitated for chronic LE wounds. A multivariate analysis based on PFA levels was conducted for gait independence at discharge, with age and comorbidities as independent variables. Patients with Lisfranc amputation had significantly less independent gait than patients with more distal amputation and those without amputation (<22% vs >40%; P = .027; Fisher's exact test). Logistic regression analysis revealed that Lisfranc amputation (odds ratio [OR]: 0.257, P = .047), age (OR: 0.559, P = .043), and chronic limb-threatening ischemia (OR: 0.450, P = .010) were independent factors associated with gait independence. Additionally, the regression model confirmed discrimination performance using the C index (0.691, P < .001) with receiver operating characteristic analysis. In patients with chronic LE wounds undergoing PFA, Lisfranc amputation was negatively associated with gait independence.
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Affiliation(s)
- Yuma Sonoda
- Advanced Research Center for Well-being, 12885Kobe University, Kobe, Hyogo, Japan
| | - Noriaki Maeshige
- 91723Department of Rehabilitation Science, Kobe University Graduate School of Health Sciences, Kobe, Hyogo, Japan
| | - Mikiko Uemura
- 91723Department of Rehabilitation Science, Kobe University Graduate School of Health Sciences, Kobe, Hyogo, Japan
- 38082Faculty of Health Science, Kansai University of Welfare Sciences, Kashiwara, Osaka, Japan
| | - Shinsuke Imaoka
- 38411Department of Rehabilitation, Oita Oka Hospital, Oita, Oita, Japan
| | - Nobuhide Kawabe
- 13101Faculty of Makuhari Human Care, Tohto University, Makuhari, Chiba, Japan
| | - Hisae Hayashi
- 38291Faculty of Health and Medical Sciences, Aichi Shukutoku University, Nagakute, Aichi, Japan
| | - Miki Fujii
- Department of Plastic and Reconstructive Surgery, Juntendo University School of Medicine, Tokyo, Japan
- Division of Regenerative Therapy, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Yoriko Tsuji
- Unit of Podiatric Medicine, 38303Kobe University Graduate School of Medicine, Department of Plastic Surgery, Kobe, Hyogo, Japan
| | | | - Masahiro Kohzuki
- 13302Department of Health Sciences, Yamagata Prefectural University of Health Sciences, Yamagata, Yamagata, Japan
| | - Hiroto Terashi
- 38303Department of Plastic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
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12
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Zurong Y, Yuandong L, Xiankui T, Fuhao M, Tang L, Junkun Z. Morphological and Mechanical Properties of Lower-Limb Muscles in Type 2 Diabetes: New Potential Imaging Indicators for Monitoring the Progress of DPN. Diabetes 2022; 71:2751-2763. [PMID: 36125913 DOI: 10.2337/db22-0009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 09/14/2022] [Indexed: 01/11/2023]
Abstract
The aim of this study was to explore changes in morphological and mechanical properties of lower-limb skeletal muscles in patients with diabetes with and without diabetic peripheral neuropathy (DPN) and seek to find a potential image indicator for monitoring the progress of DPN in patients with type 2 diabetes mellitus (T2DM). A total of 203 patients with T2DM, with and without DPN, were included in this study. Ultrasonography and ultrasound shear wave imaging (USWI) of the abductor hallux (AbH), tibialis anterior (TA), and peroneal longus (PER) muscles were performed for each subject, and the shear wave velocity (SWV) and cross-sectional area (CSA) of each AbH, TA, and PER were measured. The clinical factors influencing AbH_CSA and AbH_SWV were analyzed, and the risk factors for DPN complications were investigated. AbH_CSA and AbH_SWV in the T2DM group with DPN decreased significantly (P < 0.05), but no significant differences were found in the SWV and CSA of the TA and PER between the two groups. Toronto Clinical Scoring System (CSS) score and glycosylated hemoglobin (HbA1c) were independent predictors of AbH_CSA and AbH_SWV. As AbH_SWV and AbH_CSA decreased, Toronto CSS score and HbA1c increased and incidence of DPN increased significantly. In conclusion, the AbH muscle of T2DM patients with DPN became smaller and softer, while its morphological and mechanical properties were associated with the clinical indicators related to the progression of DPN. Thus, they could be potential imaging indicators for monitoring the progress of DPN in T2DM patients.
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Affiliation(s)
- Yang Zurong
- Department of Ultrasound Diagnosis, Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Li Yuandong
- College of Mechanical and Vehicle Engineering, Hunan University, Changsha, Hunan, China
| | - Tan Xiankui
- Department of Ultrasound Diagnosis, Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Mo Fuhao
- College of Mechanical and Vehicle Engineering, Hunan University, Changsha, Hunan, China
| | - Liu Tang
- Department of Orthopaedics, Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Zhan Junkun
- Department of Geriatric, Institute of Aging and Geriatrics, Second Xiangya Hospital of Central South University, Changsha, Hunan, China
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13
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Shoe and Bracing Considerations for the Insensate Foot. Phys Med Rehabil Clin N Am 2022; 33:845-856. [DOI: 10.1016/j.pmr.2022.06.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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