Morphometric Analysis of the Calcaneus in a Southeast Asian Population.

Introduction The calcaneus is the most commonly fractured tarsal bone, accounting for up to 60% of tarsal bone fractures and 2% of all fractures in the body. With the calcaneus playing an important role in maintaining a stable and efficient bipedal gait, the sequelae of these injuries have also been associated with potential long-term disability or discomfort, especially if improperly managed. Incorrectly sized implants similarly cause their own set of complications, such as poor fixation, impingement, or implant prominence. This potentially increases the need for revision surgery or implant removal, with increased morbidity for the patient. As such, a thorough understanding of calcaneal morphology is vital to ensure optimal conservative and surgical management of calcaneal pathology. CT imaging has become an indispensable tool in the evaluation of such a complex three-dimensional structure and allows us to accurately map out calcaneal morphology. This study aims to evaluate calcaneal morphology in the Southeast Asian population using CT imaging and to determine if morphological differences exist between male and female patients. Methods Calcaneus measurements were taken from CT scans of 100 patients with intact calcanei, consisting of 34 female and 66 male patients. Patients who have had fractures or previous calcaneus surgery were excluded. IBM SPSS Statistics for Windows, Version 28.0 (Released 2021; IBM Corp., Armonk, NY, USA) was used for statistical calculations. Mean values were calculated, and t-tests were performed to establish any significant differences between measurements taken from male and female patients. Results were deemed to have a significant difference if the p-value was less than 0.05. Results Males had larger calcanei measurements than females in all parameters included. Calcaneal length in females measured on CT axial views was 66.2 mm, compared to 75.2 mm in males (p < 0.001). Calcaneal height, measured at the medial wall, was 28.2 mm in females and 33.9 mm in males (p < 0.001). Calcaneal height measured at the lateral wall was 33.3 mm and 38.1 mm in females and males, respectively (p > 0.001). Calcaneal width was 33.0 mm in females and 36.9 mm in males (p < 0.001). The mean dimensions measured in the total sample were an axial length of 72.1 mm, a medial wall height of 32.0 mm, a lateral wall height of 36.4 mm, and a width of 35.6 mm. Conclusion There is a significant difference in calcaneal morphology on CT imaging between male and female patients in the Southeast Asian population, which is an important consideration for surgical planning and the selection of appropriately sized implants.

A Retrospective Study Assessing the Clinical Outcomes After Cheilectomy and Subchondroplasty for Hallux Rigidus.

Introduction Hallux rigidus (HR) refers to osteoarthritis of the first metatarsal phalangeal joint, resulting in stiffness, pain, and limitation in daily function. Surgery of HR is indicated in those who have failed a trial of non-operative management and is typically divided into joint-preserving (JP) and joint-sacrificing procedures. Cheilectomy is the most commonly practiced JP procedure, often done in conjunction with associated procedures for HR. Our paper aims to report the clinical outcomes after cheilectomy and cheilectomy done with subchondroplasty (SCP) performed for HR. Methods All patients who underwent cheilectomy for HR between 2017 and 2022 were identified and had their outcomes evaluated at the time of this review. The patients had their pre-operative radiographs and clinical and operative notes analyzed for the grading of HR. Functional outcomes were assessed with the use of the visual analog scale (VAS) and American Orthopaedic Foot and Ankle Society (AOFAS) scores, as well as comparing the pre-operative and post-operative degree of dorsiflexion of the affected first metatarsophalangeal joint. This study was approved by the SingHealth Institutional Review Board (IRB) Institution with approval number 2021/2629. Results A total of 19 patients and 20 feet were included in our study at a mean follow-up of 29.8 months. There was an increase in dorsiflexion of the first MTP joint by 27.2 degrees (p-value = <0.0001). Patients who underwent cheilectomy alone (Group 1) had a mean improvement in VAS scores of 5.46 (p-value = <0.0001). Patients who underwent SCP of the first metatarsal head along with cheilectomy (Group 2) had an improvement in VAS scores by 5.78 (p-value = 0.0007). There was a mean improvement in AOFAS scores of 25.6 (p-value = <0.0001) for patients in Group 1. Patients in Group 2 had a mean improvement in AOFAS scores of 31.0 (p-value = 0.0003). Conclusion Both cheilectomy and cheilectomy performed with SCP for HR show good outcomes at short-term follow-up (mean 29.8 months). Cheilectomy is a viable alternative to arthrodesis for the surgical treatment of HR even in patients with higher grades. The use of SCP should be further explored as an adjunct in the surgical treatment of HR.

Clinical Outcomes After Joint-Preserving and Joint-Sacrificing Surgery for Hallux Rigidus.

Introduction Hallux rigidus (HR) is a degenerative condition affecting the first metatarsal phalangeal joint, causing stiffness and pain. Surgery is indicated for those who have failed a trial of conservative management. The purpose of this paper is to evaluate the functional outcomes at short and medium term after surgery for HR. Methods All patients who underwent surgical treatment for HR between 2017 and 2022 at the time of this study were identified and invited to return for a follow-up evaluation. Outcomes were assessed by comparison of pre-operative and post-operative visual analogue scale (VAS) and American Orthopaedic Foot and Ankle Society (AOFAS) scores. Results A total of 26 patients were included in our study with a mean follow-up of 31 months. There was a mean improvement in VAS score by 5.6 (p-value < 0.0001) and 5.7 (p-value = 0.0012) in patients who underwent joint-preserving (JP) and joint-sacrificing (JS) surgery, respectively. Patients who underwent JP surgery had a mean increase of 28.1 points (p-value < 0.0001) in the AOFAS Hallux score, while patients who underwent JS surgery had a mean increase of 27.29 points (p-value = 0.0066). Conclusion Functional outcomes after surgical management for HR are good at short- and medium-term follow-up. Good outcomes are seen with both JP and JS procedures. JP procedures should be considered as a first-line surgical option for HR as it allows revision procedures if required.

Anteromedial Impingement in Chronic Lateral Ankle Instability: A Comparison of MRI and Arthroscopic Findings.

Introduction Chronic lateral ankle instability (CLAI) is a known complication of ankle sprains, most commonly involving injury to the anterior talofibular ligament (ATFL). Growing evidence has shown an association between anteromedial (AM) impingement and CLAI. The purpose of this paper is to compare magnetic resonance imaging (MRI) with arthroscopic findings for the incidence of AM impingement in CLAI. Methods A retrospective study was performed by analyzing the radiological and operative reports of all patients who underwent an arthroscopic Broström-Gould procedure for CLAI between 2021 and 2022 at Changi General Hospital, Singapore. All patients who had a pre-operative MRI ankle scan performed and mention of the presence or absence of AM impingement in the operative notes were included in this study. Patients with concomitant fractures or systemic conditions affecting the same ankle were excluded. Results Ninety-seven patients were included in this study, 65 males and 32 females; 6.2% (6 of 97) of patients had a suggestion of AM impingement based on MRI findings, and 77.3% (75 of 97) of patients were noted to have AM impingement based on arthroscopic findings. Conclusion There is a high incidence of AM impingement associated with CLAI. AM impingement is often missed based on MRI findings. Arthroscopic Broström should be considered to address both issues of AM impingement and CLAI in the same setting.

Incidence of Injuries Associated With Anterior Talofibular Ligament Injury Based on the Reporting of Magnetic Resonance Imaging.

Introduction This paper aims to report the incidence of ligamentous, tendon, and other structural injuries associated with an anterior talofibular ligament (ATFL) injury based on magnetic resonance imaging (MRI) findings. Methods The reports of all patients who underwent surgical treatment for ATFL injury between 2021 and 2022 at Changi General Hospital and had preoperative MRI ankle scans performed were analyzed in this retrospective study. Patients who had a preoperative MRI ankle scan performed with specific reporting of the ATFL, calcaneofibular ligament (CFL), deltoid ligaments, peroneal tendons, and the presence of an osteochondral defect (OCD) were included in this study. Patients who underwent surgery but did not have a preoperative MRI ankle scan done or had ankle fractures or systemic conditions affecting the same ankle were excluded. Results Eighty-six patients were included in this study, of which 59 were males and 27 were females. About 73.3% (63 of 86) of patients had sustained injuries in association with ATFL injury, and 58.1% (50 of 86) of patients suffered an associated injury to the calcaneofibular ligament (CFL). There were injuries to the superficial and deep deltoid ligaments in 29.1% (25 of 86) and 44.2% (38 of 86) of patients, respectively. The peroneal tendons were also injured in 17.4% (15 of 86) of patients. Lastly, there were also associated OCDs found in 19.8% (17 of 86) of patients. Conclusion There is a high incidence of injuries associated with an ATFL injury. The CFL and deltoid ligament complex are the most commonly injured structures in association with the ATFL. One in five patients will also have an associated OCD. The ATFL tends to be the only structure that is commonly addressed during surgery. Repair of the ATFL only may thus lead to poorer outcomes and persistent pain, if the underlying cause is due to the other concurrent injuries. Clinical evaluation of the other structures should thus be thoroughly performed to allow the addressing of any concurrent injuries in the same surgical setting to achieve better outcomes.

The Outcome of Modified Mini-Open Brostrom Gould Ankle Surgery on Chronic Ankle Instability.

Introduction  Modified Brostrom-Gould surgery (MBG) aims to repair the lateral ligaments of the ankle in patients with ligamentous laxity and chronic instability. Brostrom-Gould surgery-the Brostrom technique associated with Gould augmentation-is currently the gold standard surgical option for chronic ankle instability worldwide. Chronic lateral ankle instability caused by lateral ankle sprains is one of the most common sports-related injuries, and Brostrom-Gould surgery is commonly recommended as the operative treatment. While arthroscopic surgery is becoming the more heavily favored approach of choice, open Brostrom-Gould surgery is still pertinent for patients for whom arthroscopic repair is unsuitable. Aim This paper discusses a modified mini-open approach of the open Brostrom-Gould surgery with a smaller incision (1.5 cm) and aims to study the outcomes of this modified approach on patients' post-operative pain, stability, and functional outcome. Methods Forty-two patients were followed up for a mean of 2.6 years after undergoing modified mini-open Brostrom-Gould surgery. The Visual Analog Scale (VAS), the Foot and Ankle Outcome Score (FAOS), and Karlsson scores were used to monitor their post-operative recovery. The Wilcoxon signed-rank test and the SPSS Statistics (v.28.0.1) software were used for data management and analytics. Results The results showed a mean Karlsson score of 83.4, a mean FAOS score of 69.7, and a mean VAS score of 1.33. These results are comparable to studies conducted on conventional open Brostrom-Gould repair. Conclusion The modified mini-open Brostrom Gould provides a favorable functional outcome with a reduction in pain and suggests no decrease in efficacy with the modified approach. This is coupled with the added advantages of a smaller wound, better wound healing outcomes, and availability to patients not suited to arthroscopic repair.

Surgical Treatment of Haglund's Deformity: A Systematic Review and Meta-Analysis.

Posterosuperior calcaneal prominence, also known as Haglund's deformity, can often lead to retrocalcaneal bursitis, a significant cause of posterior heel pain. Surgery is indicated for symptomatic patients, after a period of conservative treatment including analgesia, physiotherapy, activity, and shoe wear modification has failed. Surgical options include both open and endoscopic techniques, and typically involve excision of the retrocalcaneal bursa, resection of the calcaneal prominence, and debridement of the diseased Achilles tendon. This article aims to provide an evidence-based literature review for the surgical management of Haglund's deformity. A comprehensive evidence-based literature review of the PubMed database conducted in July 2021 identified 20 relevant articles assessing the efficacy of surgical modalities for Haglund's deformity. The 20 studies were assigned to a level of evidence (I-IV). Individual studies were reviewed to provide a grade of recommendation (A-C, I) according to the Wright classification in support of or against the surgical modality. Qualitative and quantitative analysis was performed for the 20 studies. The results show that both open and endoscopic surgical modalities are efficacious in the treatment of Haglund's deformity, significantly improving functional outcome scores such as American Orthopaedic Foot & Ankle Society (AOFAS) scores and patient satisfaction post-operatively. Endoscopic surgery appears to have the advantage of shorter operative times, lower complication rates, and better cosmesis. More studies are required to further validate and optimize these surgical techniques.

Radiofrequency microtenotomy for plantar fasciitis: A systematic review and meta-analysis.

BACKGROUND: Currently, there is limited evidence on outcomes for plantar fascia radiofrequency microtenotomy. An evidence-based systematic review and meta-analysis for outcomes of radiofrequency microtenotomy for the treatment of plantar fasciitis was conducted. METHODS: A comprehensive evidence-based literature review of PubMed and Cochrane Databases was conducted in March 2019, which identified 11 relevant articles assessing the efficacy of plantar fascia radiofrequency microtenotomy. The studies were then assigned to a level of evidence (I-IV). Individual studies were reviewed to provide a grade of recommendation (A-C, I) according to the Wright classification in support of or against endoscopic plantar fascia release. Meta-analysis was performed for 7 of the studies that measured AOFAS scores. RESULTS: Based on the results of this evidence-based review, there was fair (grade B) evidence to support plantar fascia radiofrequency microtenotomy. There was a statistically significant mean increase of 40.9 in AOFAS scores post procedure. CONCLUSION: There was fair (grade B) evidence to recommend radiofrequency microtenotomy for plantar fasciitis. There is a need for more high quality level I randomized controlled trials with validated outcome measures to allow for stronger recommendations to be made. LEVEL OF EVIDENCE: Level II, systematic review of level II studies.

Investigating the Radiological Outcomes of Syndesmosis Injuries in Ankle Fracture Patients After Suture Button Fixation.

Concomitant syndesmotic injury occurs in 10% of ankle fractures. Anatomic reduction and maintenance of this reduction is critical in ensuring ankle stability and preventing long-term complications. This is a retrospective cohort study aimed at evaluating the mid-term radiological outcomes of syndesmotic injuries in ankle fracture patients after surgical fixation with suture button device. The study group included 33 patients. Plain radiographs including anteroposterior, lateral and mortise views of the affected ankle were performed preoperatively, postoperatively and at 3-month follow-up. Anteroposterior views were used to measure the amount of tibiofibular overlap and tibiofibular clear space. Paired Student's t test and linear model regression were performed. Between the immediate postoperative and 3-month follow-up period, there was a mean decrease in tibiofibular overlap of 0.841 (±2.07) mm (p = .0259). There was a mean increase in tibiofibular clear space of 0.621 (±1.46) mm (p = .0201). In addition, we found significant correlation between fracture type and change in tibiofibular clear space (p = .047). Our study showed that there is statistically significant widening of the syndesmosis after suture button fixation at 3-month follow-up as evidenced by reduced tibiofibular overlap and increase in tibiofibular clear space. However, they remain within the maximum threshold for acceptable syndesmotic widening of 1.5 mm. Further correlation between radiological outcomes and patient function is needed to determine clinical significance of these changes.

The Orthopedic Injury Burden of Personal Mobility Devices in Singapore - Our Experience in the East Coast.

PURPOSE: Personal mobility devices (PMDs) have become increasingly popular as a modality of transport worldwide. Starting out as novelty toys, PMDs are gradually being adopted as the mainstream mode of travel. There is an increasing number of accidents involving both PMD riders and other road users since its introduction, leading to a concomitant increase in demand for healthcare resources to manage the injuries. The main objective of this study was to evaluate the inpatient cost and the orthopedic injury pattern due to PMD accidents. METHODS: All patients admitted to the Department of Orthopedic Surgery between December 2016 to February 2018 with injuries due to PMD accidents were recruited. Data collection was performed retrospectively on the demographic profiles, injury patterns, admission related outcomes and expenditures of these patients. RESULTS: 43 patients were included in this study. The mean duration of admission was 7.81 days and the median cost of admission was S$7835.01 (approximately US$5620). These were comparable to accidents arising from other modes of transport, such as motorcycles and bicycles. In addition, more than 80% of patients were not wearing protective gear at time of accident. These patients had a slightly higher median cost payable per patient as compared to those who donned protective gear, with a difference of S$1669.78 (approximately US$1221). CONCLUSION: There is a significant health and financial cost to the individual and society from PMD injuries and admission. This can be reduced with strict regulations on PMD use, advocating protective gear use, and promoting awareness on safety measures and the consequences of PMD accidents. The most common injury mechanism and orthopedic injury type for PMD accidents are different from motorcycle accidents.

Salvage arthrodesis for failed first metatarsophalangeal joint arthroplasty: A network meta-analysis.

BACKGROUND: We aim to provide an evidence-based literature review of salvage arthrodesis for failed first metatarsophalangeal joint arthroplasty with a network meta-analysis. METHODS: A search of PubMed, Embase and Cochrane databases was conducted in December 2016 which identified 12 relevant articles out of 340 articles assessing the efficacy of salvage arthrodesis for failed joint arthroplasty of the first metatarsophalangeal joint. The 12 studies were assigned a level of evidence (I-V) and interventions were graded a level of recommendation (A-C, I) in support of or against the treatment modality. RESULTS: There is fair evidence (grade B) to support salvage arthrodesis with structural bone graft. There is poor evidence (grade C) for salvage arthrodesis without bone graft. There was no good evidence (grade A) to recommend either intervention. Meta-analysis showed that salvage arthrodesis resulted in improved functional outcome over time. CONCLUSIONS: Salvage arthrodesis showed good bone union rates and patient satisfaction. LEVEL OF CLINICAL EVIDENCE: III - Systematic Review of Level III studies.

Endoscopic plantar fasciotomy for plantar fasciitis: A systematic review and network meta-analysis of the English literature.

BACKGROUND: Currently, there is limited evidence on outcomes for endoscopic plantar fasciotomy. OBJECTIVES: An evidence-based literature review for outcomes of endoscopic plantar fasciotomy for the treatment of plantar fasciitis is provided. METHODS: A comprehensive evidence-based literature review of PubMed and Cochrane databases was conducted on 9th March 2019, which identified 12 relevant articles assessing the efficacy of endoscopic plantar fasciotomy. The studies were then assigned to a level of evidence (I-IV). Individual studies were reviewed to provide a grade of recommendation (A-C, I) according to the Wright classification in support of or against endoscopic plantar fascia release. RESULTS: Based on the results of this evidence-based review, there is poor evidence (grade C) to support endoscopic plantar fascia release. Release of the medial 2/3 of the plantar fascia in endoscopic plantar fasciotomy was associated with higher AOFAS score. CONCLUSION: Although the majority of the level of evidence was low (level IV) and grade of recommendation was poor (grade C), there seemed to be good outcomes for endoscopic plantar fasciotomy. There is a need for more high quality level I randomized controlled trials with validated outcome measures to allow for stronger recommendations to be made.

Comprehensive Review of Non-Operative Management of Hallux Rigidus.

This article aims to provide an evidence-based literature review for the non-operative management of hallux rigidus. Currently, there is very little article on the evidence for the non-operative management of hallux rigidus. A comprehensive evidence-based literature review of the PubMed database conducted in November 2016, identified 11 relevant articles out of 560 articles assessing the efficacy of non-operative modalities for hallux rigidus. The 11 studies were then assigned to a level of evidence (I-IV). Individual studies were reviewed to provide a grade of recommendation (A-C, I) according to the Wright classification in support of or against the non-operative modality. Based on the results of this evidence-based review, there is poor evidence (grade C) to support use of intra-articular injections for pain relief for a period of three months and fair evidence (grade B) against the use of intra-articular injections for long term efficacy. There is poor evidence (grade C) to support manipulation and physical therapy and poor evidence (grade C) to support modifications in footwear, insoles and orthotics. There were no good evidence (grade A) recommending any interventions. In general, most of the interventions showed improvement. However, the evidence is poor in recommending orthosis, manipulation and intra-articular injections. There is a need for high-quality Level I randomized controlled trials with validated outcome measures to allow for stronger recommendations to be made. There is no study that looked solely at the use of pharmaceutical oral agents for the treatment of hallux rigidus. Non-operative management should still be offered, prior to surgical management.