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Introduction The purpose of this study is to determine the efficacy of tibiotalocalcaneal arthrodesis by reamed intramedullary nail in the management of the distal tibia non-unions, associated with end-stage osteoarthritis of ankle and subtalar joints. Materials and methods 8 patients with radiographical and clinical diagnosis of non-union of the distal tibia have been treated with tibiotalocalcaneal arthrodesis by intramedullary retrograde nail and were retrospectively evaluated. Patients were radiographically and clinically evaluated preoperatively and at final follow-up regarding: satisfaction, AOFAS, VAS. Surgical technique is described. Results Mean follow-up was 69.2 ± 23.2 months (range 48–108). In terms of subjective outcome, patients reported a highly satisfying result. All patients returned to daily activities, with an average time of 24.7 ± 8.7 weeks. 6 patients could return to their previous work activity, with an average time of 23.6 ± 6.3 weeks. Conclusions The procedure showed good results at final follow up. Consolidation was achieved in all the treated cases. Considering AOFAS and VAS scores at final follow-up, there was an evident improvement of the conditions of the patients.

Purpose: Chronic anterior ankle pain is a recognized and straightforward characteristic of anterior impingement syndrome. This retrospective study aims to evaluate outcomes, clinical and radiological results in patients affected by anterior ankle impingement, in a context of early osteoarthritis, and treated with mini-open anterior ankle arthrolysis, in the perspective to delay or avoid other demolitive surgical options, such as total ankle replacement and joint fusion. Methods: In total, 49 patients (50 feet, mean age 45years) undergone mini-open anterior ankle arthrolysis for anterior impingement, fulfilled inclusion criteria and gave their consent and have been enlisted in the study. Patients were retrospectively reviewed with AOFAS ankle-hindfoot score and SF-36 score at a minimum follow-up of 36months. Statistical analysis was performed. Results: A marked improvement was noticed in terms of preoperative clinical score (mean AOFAS score 47.32 ± 17.89) compared to follow-up clinical score (mean AOFAS score 70.66 ± 16.62; p ' 0.005), and all of 8 SF-36 domains showed statistically improved (p ' 0.05) from preoperative to follow-up. Statistical significance has been shown. Conclusions: It is possible to consider the mini-open anterior arthrolysis, thanks to the reduction of the painful symptomatology, a valid tool for procrastinating more invasive interventions such as arthrodesis or prosthetic replacement in patients with grade 1 or 2 of ankle osteoarthritis.

Purpose: Degenerative ankle arthropathy is a debilitating and increasingly widespread condition with worsening of quality of life. In last years, total ankle replacement has increased indications, thanks to advances in surgical technique, materials and design that provided new solutions for surgeons. The purpose of this study is to evaluate the effectiveness of total ankle replacement (TAR), implanted using a trans-fibular lateral approach in patients with high-grade degenerative arthropathy, in terms of clinical, functional and radiological outcomes and possible complications. Methods: This retrospective study included 73 patients, aged between 47 and 79years (mean age 61.7 ± 14.2years), who underwent trans-fibular total ankle arthroplasty. All patients were followed up for at least two years post-operatively with mean follow-up 31.2 ± 8.1months and have been evaluated clinically and radiographically both pre-operatively and post-operatively. Results: Patients demonstrated a significant improvement in average AOFAS score, SF-36 score and VAS scale. Average plantarflexion improved from 9.9° ± 4.2 to 18.4° ± 6.3 and dorsiflexion from pre-operative mean value of 6.8° ± 5.8 to 17.2° ± 3.1 post-operative. Complications recorded in our series were 16 (21.9%), specifically 2 major complications and 14 minor complications. Conclusions: This study found that trans-fibular total ankle replacement is a safe and effective option for patients with ankle osteoarthritis, resulting in improvement of patient-reported outcomes, range of motion, and radiographic parameters. However, further studies are required to determine long-term performance of these implants.

Introduction: Treatment of hallux valgus deformity associated with mild or moderate osteoarthritis (OA) is still a topic of debate. In the literature, there are few studies concerning the management of patients affected by this condition. This study aims to report the experience at mid- to long-term results of an original joint-preserving surgical technique. Materials and Methods: Patients affected by mild to moderate hallux valgus deformity and associated to grade 1–2 OA and treated with modified Simple-Effective-Rapid-Inexpensive (SERI) technique from 2008 to 2018 were selected. Inclusion criteria were mild or moderate hallux valgus angle (HVA)

Purpose To compare weight-bearing cone-beam computer tomography (CBCT) and conventional computer tomography (CT)-based measurements of patellofemoral alignment and stability in patients surgically treated for recurrent patellar dislocation. These scans implied respectively single-leg up-right posture, the knee flexed, and lower limb muscles activation, versus supine position with the knee extended. Methods A total of 17 patients (11 males/6 females) after surgical reconstruction with fascia lata allograft for recurrent patellofemoral dislocation were analyzed at 60-month follow-up. Tilt and congruence angles and tibial tuberosity–trochlear groove (TT-TG) offset were measured on images obtained from CBCT and conventional CT scans by three independent and expert radiologists. Paired t tests were performed to compare measurements obtained from the two scans. Inter-rater reliability was assessed using a two-way mixed-effects model intra-class correlation coefficient (ICC). Results Only TT-TG offset was found significantly smaller (p Conclusion In patients surgically treated for recurrent patellar dislocation, TT-TG offset was found overestimated with conventional CT. All measurements of patellofemoral stability and alignment were found more consistent when obtained with weight-bearing CBCT compared to conventional CT.

Purpose: An unsatisfactory reduction and internal fixation of an ankle fracture can result in an alteration of the anatomical axes and distribution of the load on the ankle, with consequent development of chronic pain and articular degeneration. The aim of this study is to evaluate the results of the articular re-balancing with realignment and lengthening of the fibula in case of malunited distal fibular fractures. Methods: A review of prospectively collected data was performed for all patients with a diagnosis of malunion of the fibula and underwent ankle joint re-balancing with fibular lengthening. Twenty-three patients, with a mean age of 39.4 ± 13.1years, have been evaluated using radiographic parameters, American Orthopaedic Foot and Ankle Surgeons ankle-hindfoot, Ankle Activity scale, and SF-36 score at six, 12, 24, and 36months post-operatively. Results: All cases treated showed at follow-up the osteotomy healed in good correction of the deformities. Clinical scores showed a clear improvement: final 36-month mean AOFAS was 74.0 ± 8.9 point, final 36-month mean HALASI score was 4.9 ± 0.9 points, 36-month follow-up SF-36 score showed an average score of 73.2 ± 10.7 points. Pre- and post-operative radiographic parameters have been registered and described. Conclusions: The ankle joint is a complex structure, and even minor changes of the structure of this joint can significantly compromise its functionality. Ankle joint re-balancing is an effective surgical procedure in case of fibular malunion. This procedure, in patients carefully selected, could procrastinate more disabling surgical procedure, as arthrodesis or prosthesis.

Introduction Injuries involving the tarsometatarsal (TMT) joint are relatively uncommon, and the surgical treatment is potentially characterized by a high complications rate. The purpose of this study is to evaluate the results of the treatment of Lisfranc fracture-dislocations treated with closed reduction and percutaneous fixation with K-wires, considering complications and re-intervantion rate. Materials and methods A retrospective review was performed on all patients undergone closed reduction and percutaneous fixation with K-wires of a Lisfranc fracture-dislocation. Patients have been clinically evaluated at last follow up by American Orthopaedic Foot and Ankle Society (AOFAS) midfoot score and Visual Analogue Scale (VAS), as well as by radiograph assessment. Results Following inclusion and exclusion criteria, 15 patients have been included, with a mean age of 48.2 ± 5.6 years. Average follow-up was 3.8 ± 1.8 years (range 1–6). 7 fractures analyzed were classified as type A, 7 as type B (3 were B1, 4 were B2) and 1 as type C1. No case of loss of reduction has been observed at radiographic 1-month follow-up. At last follow-up mean AOFAS midfoot score and VAS score were respectively 82.2 ± 10.4 and 1.5 ± 1.3. Registered complications showed one deep vein thrombosis and 2 cases of complex regional pain syndrome (CRPS). One patient subsequently underwent arthrodesis of the tarsometatarsal joint for post-traumatic arthritis. Conclusions The treatment of the fracture-dislocations of the Lisfranc joint by percutaneous reduction and fixation with K-wire can achieve good clinical outcomes with a low rate of complications and reoperations. Level of Evidence Level IV

Recovery of postural control and proprioception in patients affected by chronic ankle instability (CAI) and operated on capsulo-ligaments reconstructive surgery lacks of objective assessment. The aim of this study was to evaluate long-term post-surgical postural and proprioceptive control through the DPPS device in a cohort of patients operated on ligaments reconstruction through the modified Brostrom procedure at a minimum follow up of 12 months. Eleven patients with post-traumatic lateral CAI, operated of external capsulo-ligamentous complex repair according to Brostrom technique at a minimum follow-up of 1 year were enrolled. Physical examination and American Orthopaedics Foot and Ankle Society (AOFAS) ankle-hindfoot score. Proprioceptive and postural stability was assessed by DPPS - Delos Postural Proprioceptive System, linked to a computer with a specific software and including a flat table, an electronic unstable proprioceptive board, a Delos Vertical Controller, a monitor and a horizontal bar fitted with an infra-red sensor for hand support. Patients were 5 males and 6 females, mean age of 38.4 ± 12 years. Mean BMI of the patients was 26.8 ± 4.4. Mean follow up was 13.4 ± 2.1. The mean value of (AOFAS) clinical score was 90.3/100. Mean Static Stability Index (SSI) with open eyes was 87.7% (±7.6) in the operated leg and 90.4% (±6.1) in the contra-lateral. SSI with closed eyes was 64.5% (±11.2) in the operated leg and 61.6% (±16.8) in the contra-lateral. Mean Dynamic Stability Index (DSI) without restrictions was 56.2% (±14.6) in the operated leg and 56.8% (±10.6) in the contra-lateral. DSI with restricted upper limbs, had a mean value of 56.3% (±11.4) in the operated leg and 58.1% (±11.9) in the contra-lateral. Re-tensioning capsular-ligamentous surgery of the external compartment for CAI allow to recovery proprioceptive and postural control on the operated side, comparable with data from the contralateral limb and from the healthy population of the same age and sex.

Unicompartmental knee arthroplasty (UKA) has increased in popularity in the last years, also in younger and more active patients with great expectancies. The purpose of our study was to investigate the change in sports activities before and after medial UKA. We surveyed 53 athletic patients; all underwent cemented medial UKA, to determine not only their subjective and objective evaluation of clinical status with Hospital for Special Surgery (HSS) and visual analog score (VAS) score, but also their sporting and recreational activities at a mean follow-up of 48 ± 6 months (range, 18–56 months). At the last follow-up, 48 of 53 patients were engaged in sports and recreational disciplines, resulting in a return to activity rate of 90%. No early failure and no cases of revision were reported. The frequency of activities (sessions per week) and the time session remained constant at the time of survey. The most common activities after surgery were hiking, cycling, and swimming. Several high-impact activities, as well as skiing and football, had a significant decrease in participating patients. There were no gender-, age- and body mass index (BMI)-related differences. UKA can be considered a viable alternative in relatively young patients with high functional requirements and the correct indications, however, warning the patients about the risks of polyethylene wear and early loosening of the prosthetic components as a result of the resumption of sporting activities in high impact. Level of Evidence Prospective case series, level 4.

Hallux and first MTP joint have a fundamental role in the transfer of the weight-bearing load during the normal ambulation. The aim of this paper is to review and analyze the available literature about the percutaneous surgical management of the hallux valgus to highlight its strengths and weakness, also comparing with other minimal invasive techniques. A systematic search of PubMed and Google Scholar databases has been performed, covering the period between 1981 and 2016. Various combinations of the keyword terms "PDO," "hallux valgus," "bunion," "percutaneous," "surgery," "non-invasive," "minimal invasive," "burr," "osteotomy," "distal," "linear," "saw" have been used.Four papers, published from 2005 to 2015, fulfilled the inclusion criteria. A total of 464 hallux valgus has been treated with a properly percutaneous distal first metatarsal osteotomy. Mean AOFAS score, retrieved from the 4 studies included in our review, has been recorded. There are different aspects that the foot and ankle non-experienced surgeon has to consider about percutaneous surgery: limitation of the tools, radioexposure, lack of direct visual control of the osteotomy and higher costs and patient risk due to surgical time.