SERI Technique for Isolated Juvenile Hallux Valgus Patients: A Retrospective Evaluation With Mid-term to Long-term Follow-up.

INTRODUCTION: Many different operative procedures have been described to treat hallux valgus, but many of them are inappropriate for active, skeletally immature patients. This retrospective evaluation aimed to show the efficacy of SERI (Simple, Effective, Rapid, Inexpensive) technique in young patients affected by mild to moderate hallux valgus deformity at a mid-term to long-term follow-up. METHODS: All patients were clinically and radiographically evaluated, independently by 2 researchers, by American Orthopaedic Foot and Ankle Society (AOFAS) Hallux-Metatarsophalangeal-Interphalangeal score and radiographic examination. RESULTS: Twenty-nine feet, undergone SERI procedure, have been reviewed at a mean follow-up of 5 years. The mean AOFAS score was significantly improved from 59.7 preoperatively to a mean value of 90.7 at last follow-up. Mean correction degrees have been recorded for both angles (hallux valgus angle [HVA] -13.7° and intermetatarsal angle [IMA] -6.7°). CONCLUSIONS: The SERI technique represents a powerful surgical procedure for the treatment of painful, mild to moderate, juvenile hallux valgus. Recurrence and complication rate make this surgical approach effective, repeatable, and safe. LEVEL OF EVIDENCE: Level IV, Retrospective case series.

Enhanced recovery (fast-track surgery) after total ankle replacement: The state of the art.

The post-operative results of a total ankle replacement are not determined solely by an optimal surgical technique, but by an appropriate anesthesiological and rehabilitative post-operative approach. Enhanced functional recovery often depends on a multidisciplinary approach based on a correct framework of the patient and his needs, requests, and characteristics. Extensive bibliographical research has been performed on Pubmed, Google Scholar, Scopus. This comprehensive and inclusive review of the literature aims to examine the state of the art of "fast-track" protocols employed in total ankle replacement (TAR), considering pre-operative preparation, anesthetic management, intraoperative and surgical factors, post-operative rehabilitative care and reduction of hospitalization time.

Ruptures of the Plantar Fascia: A Systematic Review of the Literature.

INTRODUCTION: Rupture of the plantar fascia is a rare condition. It can also occur spontaneously and with no history of disease of the plantar fascia, above all in athletes. This review aims to systematically analyze all cases described in the literature regarding the rupture of the plantar fascia, evaluating incidence, risk factors, and treatments, considering which procedures show the best outcomes and the highest success rate. MATERIALS AND METHODS: A systematic review of PubMed, Google Scholar, and Cochrane review computerized databases was performed, focusing on articles about cases of rupture of the plantar fascia; 18 studies fulfilled all the criteria and were analyzed. There were no randomized controlled trials. RESULTS: A total of 155 patients (157 foot) were included in this systematic review. Considering all the studies included, 12 patients had a spontaneous rupture, 138 patients had a diagnosis of plantar fasciitis, and 130 patients were treated with local injections of corticosteroid before the rupture. Only 2 cases of bilateral rupture were reported. In all, 15 studies reported conservative treatment, with a total of 154 patients (156 feet) included. Operative treatment was reported in 3 studies, with 3 patients (3 feet) treated. CONCLUSIONS: Ruptures of the plantar fascia are very rare in asymptomatic patients and more common in patients treated with injection of steroids in the plantar fascia. Conservative treatment, although not standardized in the literature, led to good outcomes in most cases. Chronic ruptures of the fascia should be considered for operative treatment. LEVELS OF EVIDENCE: Level III.

Epidemiology of Achilles Tendon Rupture in Italian First Division Football (Soccer) Players and Their Performance After Return to Play.

OBJECTIVE: To evaluate the epidemiology, incidence rate, incidence proportion, and prevalence of Achilles tendon ruptures (ATRs) in professional footballers and their performance after the injury. DATA SOURCES: Professional male footballers participating in Serie A in 11 consecutive seasons (2008/2009-2018/2019) were screened to identify ATRs through the online football archive transfermarkt.com. Exposure in matches and training was calculated. The number of matches played in the 5 seasons before and after ATRs was obtained, when possible, together with transfers to a different team or participation in lower Divisions. MAIN RESULTS: Eleven ATRs were found in 11 footballers with a mean age of 29.8 ± 4.4 years; 72% of ATR involved the nondominant leg; 58% occurred during matches and 42% during training, with no peculiar distribution along the playing season. The overall incidence proportion was 0.17% (0.11% during matches and 0.06% during training). The overall incidence rate was 0.007 injuries per 1000 hours of play (0.051 during matches and 0.003during training; P < 0.0001). All players returned to play soccer after a mean of 170 ± 35 days after ATRs and participated in an official match after a mean of 274 ± 98 days. However, 2 seasons after ATRs, 3 footballers were playing in a lower Division; 1 played less than 10 matches (compared with >25 matches in the 5 seasons before an ATR) and 1 had retired. CONCLUSIONS: An overall ATR rate of 0.007 per 1000 hours of soccer play and an incidence proportion of 0.17% were reported. All footballers return to play; however, up to 40% players decreased the level of play by reducing the number of games or participating in a lower Division 2 seasons after an ATR.

Piezoelectric tools versus traditional oscillating saw for distal linear osteotomy in hallux valgus correction: Triple-blinded, randomized controlled study.

BACKGROUND: The main goal of the surgical correction of the hallux valgus is the morphological correction associated with the functional rebalancing of the first ray. The aim of this triple-blinded, randomized controlled study was to show the efficacy of piezosurgery in performing distal linear osteotomy of the first metatarsal bone in HV correction, in terms of clinical and radiological outcomes at 1-year final follow up. METHODS AND MATERIALS: This study was performed collecting prospectively pre-operative and post-operative data for all patients. 34 patients were included in the trial and were randomly allocated (1:1) in a Piezoelectric Group (PG) that involved the use of piezoelectric tools and in a Control Group (CG) that provided for the use of a traditional oscillating saw. In both groups, all patients were treated with a distal linear osteotomy of the first metatarsal bone. Clinical and radiographic assessments were performed. RESULTS: The AOFAS score between the two groups was similar pre-operatively and during the follow-up period, with a slight superiority in the PG at each evaluation. The osteotomy surgical time was registered for both groups. Among the endpoints of the study, the radiological bone healing time was independently assessed by a radiologist that reported a lower mean value in the piezoelectric group compared with the control group. CONCLUSIONS: This trial has shown that piezoelectric surgery is not inferior to traditional methods from the clinical-functional point of view, but can even lead to an evident reduction of bone healing time with a statistical significance. LEVEL OF EVIDENCE: Level I.

Clinical Radiographical Outcomes and Complications after a Brand-New Total Ankle Replacement Design through an Anterior Approach: A Retrospective at a Short-Term Follow Up.

Recently, the progress in techniques and in projecting new prosthetic designs has allowed increasing indications for total ankle replacement (TAR) as treatment for ankle osteoarthritis. This retrospective work comprehended 39 subjects aged between 47 and 79 years old. The patients, observed for at least 12 months (mean follow up of 18.2 ± 4.1 months), have been evaluated according to clinical and radiological parameters, both pre- and post-operatively. The AOFAS and VAS score significantly improved, respectively, from 46.2 ± 4.8 to 93.9 ± 4.1 and from 7.1 ± 1.1 to 0.7 ± 0.5 (p value < 0.05). At the final evaluation, the mean plantarflexion passed from 12.2° ± 2.3° to 18.1° ± 2.4° (p value < 0.05) and dorsiflexion from a pre-operative mean value of 8.7° ± 4.1° to 21.7° ± 5.4° post-operatively (p value < 0.05). This study found that this new total ankle replacement design is a safe and effective procedure for patients effected by end-stage ankle osteoarthritis. Improvements have been demonstrated in terms of range of motion, radiographic parameters and patient-reported outcomes. However, further studies are needed to assess the long-term performance of these prostheses.

A mid-term follow-up retrospective evaluation of tarsometatarsal joint fracture-dislocations treated by closed reduction and percutaneous K-wires fixation.

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.

Ankle joint re-balancing in the management of ankle fracture malunion using fibular lengthening: prospective clinical-radiological results at mid-term follow-up.

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 ± 13.1 years, 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 36 months 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.

Clinical-radiological outcomes and complications after total ankle replacement through a lateral transfibular approach: a retrospective evaluation at a mid-term follow-up.

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 79 years (mean age 61.7 ± 14.2 years), 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 ± 8.1 months 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.

Outcome After Modified Grice-Green Procedure (SAMBB) for Arthritic Acquired Adult Flatfoot.

BACKGROUND: Adult acquired flatfoot deformity is a well-known and recognized cause of pain and disability. The purpose of this retrospective study was to describe radiographic and clinical outcomes of the modified mini bone block distraction subtalar arthrodesis (SAMBB) in adult patients affected by adult flatfoot with subtalar joint osteoarthritis at a midterm mean follow-up. METHODS: A retrospective review of our database identified patients. Radiological imaging was used to evaluate angular corrections (Meary's angle [MA], talar coverage angle [TC], and calcaneal pitch angle [CP]) to assess the rate of union and highlight the possible progression of arthritis in nearby joints. Clinical evaluation was performed at the time of surgery and at the final follow-up using the American Orthopaedic Foot & Ankle Society (AOFAS) ankle-hindfoot score. Sixty-two feet were evaluated at a mean follow-up of 6.2 ± 4.2 years. RESULTS: The AOFAS score improved from a mean value of 48.1 ± 6.1 to a postoperative average score of 87.7 ± 5. CP, TC, and MA showed a postoperative improvement to 17.7 ± 2.1, 2.9 ± 0.7, and 0.6 ± 0.6 degrees, respectively, at the final follow-up, and all deformities were corrected. Five complications (8%) were reported: 1 major and 4 minor. No graft reabsorption, sural nerve neuralgia, or donor site morbidity was recorded. CONCLUSION: To our knowledge, this study is the first report of a modified Grice-Green technique (SAMBB) that is a safe and effective treatment of flatfoot in the adult with subtalar arthritis. LEVEL OF EVIDENCE: Level IV, retrospective case series.

Correction to: Management of early ankle osteoarthritis through anterior joint-preserving surgery: a retrospective evaluation at mid- to long-term follow-up.

The original version of this article unfortunately contained a mistake. The spelling of the 'Francesco Ceccarelli' name was incorrect.

Management of early ankle osteoarthritis through anterior joint-preserving surgery: a retrospective evaluation at mid- to long-term follow-up.

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 45 years) 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 36 months. 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.

Evaluation of proprioception and postural control at a minimum 1 year follow-up after ankle capsuloligamentous lateralplasty with Brostrom technique: A cohort study.

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 ±â€Š12 years. Mean BMI of the patients was 26.8 ±â€Š4.4. Mean follow up was 13.4 ±â€Š2.1. 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.

Tibiotalocalcaneal arthrodesis through retrograde nailing for the treatment of juxtaarticular distal tibia aseptic non-unions: A retrospective study at a minimum follow-up of 4 years.

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.

Callus distraction with external fixator for the treatment of congenital brachymetatarsia of the fourth ray.

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.

Piezosurgery in Hallux Valgus Correction: Distal Linear Osteotomy Operative Technique Using Piezoelectric Tools.

Purpose Piezoelectric and ultrasonic vibrations have been used to cut tissues for three decades, in particular, in periodontics. The increasing use of piezosurgery is based on its clinical advantages such as selective cutting, precision, and low-temperature work rates. The authors applied this concept to a new operative field, the foot and ankle pathology and surgery, such as hallux valgus corrective distal linear osteotomy. Methods The osteotome equipped was the Surgysonic Moto-II model (Esacrom, Imola, Italy), a system recently developed for cutting bone withmicrovibrations. Tips used in author's case series were a high-efficiency five teeth piezoelectric saw and a high-efficiency flat scalpel shaped on three edges. Operative technique is described. Discussion and Conclusion Piezoelectric techniques were developed in response to the need for great precision and safety in bone surgery that was availavle with other manual and rmotorised instruments. Piezo-technology allows minimally-invasive and percutaneous surgery, with reduced trauma on periostium, bone, and soft tissues, reduced healing time of the osteotomy due to the absence of bony necrosis and debris formation and major precision.

Mini Bone Block Distraction Subtalar Arthrodesis (SAMBB) in the Management of Acquired Adult Flatfoot with Subtalar Arthritis: A Modification to the Grice-Green Procedure.

Adult acquired flatfoot encompasses a wide range of deformities. The goal of surgical treatment of adult acquired flatfoot is to achieve proper alignment of the hindfoot and maintain as much flexibility as possible in the foot and ankle complex; nevertheless, if subtalar arthritis is present, subtalar arthrodesis is usually mandatory. A lateral approach over the sinus tarsi is performed and subtalar joint is prepared removing remaining cartilage, reduced up to 5 degrees of heel valgus, and stabilized with a Kirschner wire. The site of insertion of the corticocancellous bone graft, harvested from the ipsilateral proximal tibia, is prepared carving a vertical groove into the talar and calcaneal edges. Additional autologous cancellous chips, harvested from the proximal tibia, can be positioned and pressed with a beater into the sinus tarsi to enhance fusion. The technique described is a modification of the extra-articular arthrodesis originally proposed by Grice. mini bone block distraction subtalar arthrodesis is a simple and effective technique which permits a subtalar fusion with a restored orientation of the hindfoot and ankle alignment in acquired flatfoot with subtalar arthritis.

Current concepts about treatment options of plantar fibromatosis: A systematic review of the literature.

BACKGROUND: Plantar fibromatosis, or Ledderhose disease, is a benign and hyperproliferative disease of the plantar aponeurosis. There have been described different therapeutic options regarding plantar fibromatosis, both conservative and surgical. The aim of this review is to systematically analyze conservative and operative treatments of plantar fibromatosis described in literature, evaluating which procedure shows the highest success rate and best functional outcome. METHODS: A systematic review of PubMed, Google Scholar and Cochrane reviews computerized database was performed focusing on the different types of treatments for plantar fibromatosis. Research was performed using the keywords "plantar", "fibromatosis", "Ledderhose", "Dupuytren", "foot" in order to identify all papers regarding the treatment of plantar fibromatosis. In addition, the research was extended to the reference list of the relevant articles. A total of 25 citations were obtained from the research and included. RESULTS: Considering all the studies, 233 patients were included in this systematic review. 5 studies reported conservative treatment of plantar fibromatosis, with a total of 35 patients included. Operative outcomes are reported for 178 patients (92 male, 86 female), with 196 feet treated. CONCLUSIONS: Valid conservative methods are presented in literature, with debated results. Some operative options show high recurrence rate; wide excision is recommended in selected cases. Further clinical trials with well-defined and standardized outcome measurements should be necessary in future to better evaluate success rate and complications of the various procedures.

Efficacy and Safety of Selective Arterial Embolization in the Treatment of Aneurysmal Bone Cyst of the Mobile Spine: A Retrospective Observational Study.

STUDY DESIGN: A retrospective observational study. OBJECTIVE: Our aim is to define the efficacy and safety of serial selective arterial embolization (SAE) in the treatment of aneurysmal bone cysts (ABCs), to explore potential treatment alternatives, and to define a therapeutic algorithm. SUMMARY OF BACKGROUND DATA: ABC is a benign lesion with an unpredictable behavior. Its treatment is challenging especially in poorly accessible surgical areas, such as spine and pelvis. Currently, the first-line treatment of ABC is repeated SAE until healing. Other options have been used with variable success rates. METHODS: From January 2004 to September 2015, 23 patients affected by ABC of the mobile spine have been treated with SAE and prospectively followed up by computed tomographic scan and magnetic resonance imaging. Signs of neurological deficit, complications, healing of the lesion, and clinical outcomes were registered.Signs of healing are defined as peripheral sclerotic bone rim formation, decrease of the ABC mass, disappearance of the double content image, and bone formation inside the ABC mass, associated with remission of pain. RESULTS: Twenty-three patients underwent SAE according to the protocol. Seventeen patients have healed. The number of procedures necessary to obtain healing (clinical and radiographic) varied from 1 to 10. No complication occurred during the procedure. Follow-up time ranged from 5 to 120 months after the last angiographic procedure. All 17 patients had complete relief of pain symptoms. Six patients did not respond to SAE, presenting a progressive clinical and radiographic worsening, and underwent other medical or minimally invasive treatments. CONCLUSION: Our study confirms the safety of SAE. The efficacy of the treatment was however lower than expected. SAE is indicated when pathological fracture or signs of cord damage are not detected. Infiltration with autologous bone marrow concentrate or administration of Denosumab is under investigation as alternative choices of treatment. LEVEL OF EVIDENCE: 4.

The prospective opportunities offered by magnetic scaffolds for bone tissue engineering: a review.

Magnetic scaffolds are becoming increasingly attractive in tissue engineering, due to their ability to enhance bone tissue formation by attracting soluble factors, such as growth factors, hormones and polypeptides, directly to the implantation site, as well as their potential to improve the fixation and stability of the implant. Moreover, there is increasing evidence that the synergistic effects of magnetic scaffolds and magnetic fields can promote bone repair and regeneration. In this manuscript we review the recent innovations in bone tissue engineering that exploit magnetic biomaterials combined with static magnetic fields to enhance bone cell adhesion and proliferation, and thus bone tissue growth.