Normal Footwear Research Articles

Walking in a controlled ankle motion (CAM) boot: In-boot measurement of joint kinematics and kinetics

Research investigating ankle function during walking in a controlled ankle motion (CAM) boot has either placed markers on the outside of the boot or made major alterations to the structure of the CAM boot to uncover key landmarks. The aim of this study was to quantify joint kinematics and kinetics using “in-boot” skin markers whilst making only minimal structural alterations. Seventeen healthy participants walked at their preferred walking speed in two conditions: (1) in standard athletic trainers (ASICS patriot 8, ASICS Oceania Pty Ltd, USA), and (2) using a hard-cased CAM boot (Rebound® Air Walker, Össur, Iceland) fitted on the right foot. Kinematic measurements revealed that CAM boots restrict sagittal plane ankle range of motion to less than 5°, and to ∼3° in the frontal plane, which is a reduction of 85% and 73% compared to standard footwear, respectively (p < 0.001). This ankle restriction resulted in a reduction of ankle joint total limb work contribution from 38 ± 5% in normal footwear to 13 ± 4% in the CAM boot (p < 0.001). This study suggests that CAM boots do restrict the ankle joint’s ability to effectively perform work during walking, which leads to compensatory mechanisms at the ipsilateral and contralateral hip and knee joints. Our findings align with previous research that employed “on-boot” kinematic measurements, so we conclude that in-boot approaches do not offer any benefit to the researcher and instead, on-boot measurements are suitable.

Soft tissue coverage of the ankle: An algorithm for appropriate flap selection and the experiences of a newly established Major Trauma Network

IntroductionReplication of the thin and pliable native skin around the ankle remains a challenge for plastic surgeons treating soft tissue defects in this region. Flap reconstruction constitutes the mainstay of management of such injuries. Subsequent management often entails revisional debulking surgery to permit normal footwear and an acceptable aesthetic outcome. In light of limited elective operating capacity throughout the covid-19 pandemic, we adopted an algorithm to inform reconstruction in such injuries and limit the need for revisional surgeries. This study presents this algorithm, which considers patient age, functional status, co-morbidities, body habitus and defect location. MethodsRetrospective analysis of a prospectively maintained database of all patients undergoing lower limb soft tissue reconstruction over 21 months was performed. All flap-based reconstructions of ankle defects were included; direct closures and skin grafts were excluded. All trauma patients were managed via a combined orthoplastic approach as per BOA-BAPRAS standards. All patients had Computed Tomography Angiography prior to their definitive reconstruction. Lower Extremity Functional Scale (LEFS) scores were analysed for patients with over 12 months of postoperative follow up, where available. Results71 flaps were performed in 69 patients. Open ankle fracture was the most common cause (86%); other indications included osteomyelitis and surgical wound dehiscence. Mean age was 50 (13–87 years) with a higher proportion of males to females (ratio 1.25:1). There were 26 pedicled flaps (18 Medial Plantar Artery and 8 Peroneus Brevis) and 45 free flaps (22 Anterolateral thigh, 11 Superficial Circumflex Iliac Artery Perforator, 11 Gracilis and 1 Medial Sural Artery Perforator). Mean follow-up is 13.6 months. There were three flap failures, and four patients subsequently underwent delayed below knee amputation despite successful soft tissue healing. For the patients with a minimum of 12 months follow up, LEFS scores with an average of 51% were achieved (range 15–88%). Four patients have been listed for revisional/debulking surgery. ConclusionAlthough soft tissue defects around the ankle can be difficult to manage, with careful planning and addressing each patient individually, supported by an algorithmic approach, good functional and aesthetic outcomes can be achieved with low rates of secondary revision surgery.

Congenital vertical talus open reduction surgery: Technique description and our twenty-years personal experience

Congenital vertical talus foot is a complex deformity, characterized by a dislocation of the talus-calcanear navicular joint. It is a rare form of congenital flat foot, where the hindfoot is valgus and equine, the midfoot dorsiflexed and the forefoot abducted. Regardless of the type of classification, the therapeutic approach and prognosis must take into account the functionality and motility of the foot. Initial treatment is manipulative. After 3 months of age, it is possible to think about soft tissue surgery. In this study, we present congenital vertical talus feet treated at the Pediatric Orthopedics Department of SS. Antonio Biagio and Cesare Arrigo Children's Hospital of Alessandria from 1995 to 2022. All 8 patients (12 feet) underwent through the surgical operation technique of open reduction described by Tachdjian and further reviewed and subjected to the American Orthopaedic Foot and Ankle Society (AOFAS) Ankle-Hindfoot Score. The mean follow up is 13 years. Global functional result was good and surgery allowed the growth of the foot, which would otherwise be blocked by an ax that is the vertical talus. Questioned remotely, all patients perform sporting activities and wear normal footwear.

Surgical outcomes of untreated congenital polysyndactyly of the foot in adult patients

Purpose: Polydactyly of the foot is a common congenital anomaly. The goal of surgery for polydactyly is to increase similarity to the contralateral foot, with a well-aligned arcade of toes that allows patients to wear normal footwear and ambulate painlessly. Foot appearance is especially important in Asian countries where people remove their shoes indoors. This study reviewed the surgical results in patients who underwent surgery for correction of untreated foot polydactyly after the age of 18 years. Methods: We retrospectively analyzed the data of 11 patients who underwent surgery between 2006 and 2019. The forefoot width, angulation difference, and toe length ratios between the affected and unaffected feet were compared before and after the operation. In addition, the purpose of the surgery and postoperative cosmetic satisfaction were collected for each patient.Results: The median age at the time of the operation was 25 years (interquartile range, 22–32 years) and most patients presented with postaxial polydactyly. The primary reasons to undergo surgery were both functional and cosmetic. The forefoot width and angle difference ratios became significantly more similar to the contralateral side postoperatively (p&lt;0.05). No significant difference was found in the toe length ratio. Postoperative Global Aesthetic Improvement Scale scores showed satisfactory results. Conclusion: The main reasons for surgery in adulthood included the diverse consequences of functional and cosmetic aspects of the anomaly. Surgery for patients with untreated polydactyly of the foot can yield satisfactory objective and subjective results regardless of the intervention timing.

722 Collagen-elastin matrix for defect coverage in exposed bradytrophic tissue after severe burn and degloving injuries

IntroductionDespite successful defect coverage by means of complex skin or muscle flaps, particularly large and deep problematic wounds with exposed bradytrophic tissues after soft tissue loss are very susceptible to surgical revision.A dermal matrix, consisting of native collagen (collagen type I, III and V) supplemented by an elastin hydolyzate was first used for the treatment of burns, predominantly those that were full-thickness. Subsequently, its use was extended to defect coverage especially after soft tissue loss caused by degloving injuries.Methods52 patients with exposed bradytrophic tissues caused by severe burn or degloving injuries were treated the same way.In all patients operative debridement showed soft tissue loss with free bone or free periostal structures, exposed tendons or joint capsules.In all patients after accurate wound bed preparation defect coverage was performed with collagen-elastin matrix and unmeshed split skin grafts in combination with negative pressure wound therapy for fixation of dermal matrix and split skin grafts.ResultsTwo-years follow up of these collagen-elastin matrix procedures in defect coverage showed an excellent functional outcome:Up until now, no areas with unstable scars have occurred, no surgical scar revisions were required. The patients were still able to wear normal footwear, clinical gait analysis showed perfect functional outcome.ConclusionsThe application of collagen-elastin matrix in patients with exposed bradytrophic tissues after severe burn or degloving injury treated so far represents an excellent reconstruction method, from initial coverage to scar development.

Comparison Between Free Anterolateral Thigh Flap and Free Medial Sural Artery Perforator Flap in Reconstruction of Post Traumatic Soft Tissue Defects of the Dorsum of the Foot

Abstract Background: The objective of this study is to compare between the free anterolateral thigh flap and free medial sural artery perforator flap in reconstruction of post traumatic soft tissue defects of dorsum of the foot as regard the function, the aesthetic outcome, the complications and the patient satisfaction.Method: The study was conducted on 40 patients with post traumatic soft tissue defects of the dorsum of the foot between August 2018 and August 2019. Patients were allocated randomly into two groups. In group1 (20 patients), the defect was reconstructed with free anterolateral thigh perforator flap. In group 2 (20 patients), reconstruction was done by free medial sural artery perforator flap.Result: In group 1 (ALT flap), Complete flap survival was achieved in all cases. Thirteen patients required secondary debulking procedures and scar revisions.In group 2 (MSAP Flap), Complete flap survival was achieved in 17 cases with one flap totally lost and two flaps had distal necrosis. One patient needed scar revision and another patient needed flap advancement.Conclusion: MSAP flap is good alternative in soft tissue reconstruction of the dorsum of the foot. It has many advantages: it is thin, pliable, fitted to normal footwear, less hairy and there is no need for secondary procedures in most cases. ALT flap is better than MSAP flap in larger defects coverage but may need secondary debulking procedures or primary thinning at the time of reconstruction.

Preoperative Expectations Versus Reality: A Patient Experience Study Following Scarf Osteotomy for Hallux Valgus Correction

The relationship between managing patient expectations and postoperative functional outcomes has been studied widely in other areas of orthopedics, but there is a paucity of information in the foot and ankle literature. The primary objective of the study was to identify the most common patient “expectations” from hallux valgus surgery and establish over what time period postsurgery they would meet those goals. A prospective study of 45 consecutive patients was performed at a single center. This included adult patients (>18 years old) that underwent a scarf osteotomy for primary hallux valgus correction. Patients were followed up for 6 months and completed pre- and postoperative Manchester-Oxford Foot Questionnaire and Visual Analogue Scale scores. A separate “expectations” questionnaire was designed and completed assessing the patient's preoperative rehabilitation expectations compared to the actual time taken to achieve those goals. These included 5 domains: pain improvement, return to walking unaided, return to normal foot sensation, return to normal footwear, and return to driving. The postoperative functional scores demonstrated statistically significant improvement postsurgery (p < .001). It also highlighted the overall time frame over which the above expectations were met. On average, patients achieved satisfactory pain improvements 1.4 weeks earlier than expected (p < .001) along with trends toward an earlier return to driving function of patient expectation (p < .05). Patients can thus be reliably informed that their pain symptoms are likely to settle within one month of surgery. This should allow patients to prepare for their rehabilitation more informed, thus facilitating earlier weightbearing and return to function.

Comparison between Free Anterolateral Thigh Flap and Free Medial Sural Artery Perforator Flap in Reconstruction of Post Traumatic Soft Tissue Defects of Dorsum of the Foot

Background: The objective of this study was to compare the pliability, the function, aesthetic outcome, complications and patient satisfaction between free anterolateral thigh flap and free medial sural artery perforator flap in reconstruction of post traumatic soft tissue defects of dorsum of the foot. Method: The study was conducted on forty patients with post traumatic soft tissue defects of the dorsum of the foot between August 2018 and August 2019. Patients were divided randomly into two groups. In group1 (20 patients), the defects were reconstructed with free anterolateral thigh perforator flap. In group 2 (20 patients), reconstruction was done by free medial sural artery perforator flap. Result: In group 1 (ALT flap), Complete flap survival was achieved in 100% of cases. Thirteen patients required secondary debulking procedures and scar revisions. In group 2 (MSAP Flap), Complete flap survival was achieved in 85% with one flap totally lost and two flaps had distal necrosis. One patient needed scar revision and another patient needed flap advancement. Conclusion: MSAP flap is superior to ALT flap. It has many advantages: it is thin, pliable, fitted to normal footwear, less hairy and there is no need for secondary procedures in most cases.

Reconstruction of the weight-bearing heel with nonsensate reverse sural artery flaps

BackgroundThe reverse sural artery flap (RSAF) is widely used to reconstruct foot and ankle defects. Although it is commonly used in a nonsensate type, there has been controversy as to whether it provides sufficient stability and durability when applied to weight-bearing heels. The aim of this study was to evaluate patient outcomes after weight-bearing heel coverage using a nonsensate RSAF. MethodsTwenty-three patients who underwent reconstruction surgery of the weight-bearing heel with RSAF from 2004 to 2018 in a tertiary hospital were retrospectively reviewed. All surgeries were performed without a sensate procedure. The patients’ experience of pressure sore on the flap area and the ability to use normal footwear were investigated. Light touch, Semmes-Weinstein test (SWT), and two-point discrimination tests were assessed, along with postoperative wound complications. ResultsHeel damage etiologies included malignant tumors in 14 (61%), trauma-related in 7 (30%) and diabetic ulcers in 2 (9%) patients. Patient mean age was 58 years (range, 18–93 years) and the mean follow-up period was 57 months (range, 12–185 months). The mean size of the flap was 64.1 cm2 (range, 20–169 cm2). All flaps healed without major complications. All returned to daily living activities and 20 (86%) patients were able to use normal footwear. Of the 11 patients who had available measurement records, 8 (73%) showed a light touch sense. The mean SWT value was 4.31 (range, 3.61– 4.56). Two-point discrimination was not observed in any of the patients. Two patients had experienced superficial ulcers on the flap within a one-year postoperative period, which spontaneously healed and did not recur. No full-thickness ulcers were observed during the follow-up period. ConclusionsThe results of this study suggest that patients who underwent nonsensate RSAF for the reconstruction of the heel could expect to maintain the property for stable weight-bearing without pressure sore.

Polydactyly of the Foot: A Review.

Pediatric foot polydactyly presents in a wide variety of deformities from single extra digits attached only by a narrow soft-tissue connection to complex central foot duplications with tarsal bone duplication. The goal of surgical reconstruction is a stable, mobile, pain-free foot with five cosmetically appealing toes that allows for normal footwear and painless ambulation. This review covers the incidence, genetics and embryology, classification, presentation and natural history, physical examination, radiographic assessment, and surgical intervention for all types of foot polydactyly.

Use of Adipofascial Reverse Sural Artery Flap for Distal Leg and Ankle Region Reconstruction- A Prospective Cohort Study

Introduction: Though distally based sural artery fasciocutaneous flap is a good choice for distal leg and ankle reconstruction, shortcomings like venous congestion and flap bulkiness are matters of concern. Aim: To assess the utility of adipofascial flap for distal leg and ankle reconstruction, complications, and long-term functional results with range of motion at ankle joint. Materials and Methods: A prospective cohort study (January 2018 to December 2019) was conducted at Safdarjung Hospital, New Delhi, India on patients having distal leg defect and ankle defects reconstructed with Distally Based Sural Artery Adipofascial Flap (DBSAAF). Participants of any age and aetiology were included in the study while polytrauma patients, life-threatening injuries, mangled extremity patients were excluded. Postoperatively flap survival, complications and functional outcome were assessed. Results: Total 21 patients with above defects had undergone DBSAAF reconstruction. Fifteen (71.4%) patients were males and 6 (28.6%) were females, with mean age of 34.85 years. Causes of defect were road traffic injury in 6 (28.6%) patients, additional Tendoachilles tear was repaired in 5 (23.8%) patients. Four (19%) patients had avulsion injury, 3 (14.3%) patients had postburn unstable scar, and chronic ulcer was found in 3 (14.3%) patients. The maximum defect size was 8.5×7 cm (mean of 5.24×4.34 cm). The width of flap pedicle was kept at 4 cm maximum (mean=3.04 cm). All flaps were transported to the defect site by incising the intervening bridge, tunneling was not done. Fourteen patients did not have any co-morbidity, whereas four patients were chronic smokers, and three were diabetics. Flap survived completely in all patients. Three patients had partial graft loss and one patient had chronic discharge. Follow-up for maximum of six months (mean=4.04 months) were done. Conclusion: DBSAAF is a reliable flap for defects of distal leg and ankle region. Advantages are aesthetically better donor area, normal contour, and minimal scarring. It does not require a secondary debulking making it a one stage procedure and allowing patients to use their normal footwear.

Ectrodactyly or lobster claw feet: our surgical experience

Introduction: Ectrodactyly, often the center of attraction due to the mystifying appearance, is a challenging surgical entity as more often the affected children seek cosmetic improvement and also want their feet to fit into normal footwear. Aims and objectives: Not much has been written in the literature of the surgical treatment of this rare entity. This article has been written to address the surgical options and treatment of this rare deformity. Results: We report a case series of five affected children treated in our institute over a period of 4 years. The cases were followed up for a period of 1 year, and there were no recurrence. Conclusion: Surgical descriptions for correction of this rare entity are few and this article aims to address this lacuna, helping in proper correction of this deformity.

Reconstruction of Medial Malleolar Defect Using Posterior Tibial Artery Perforator Based Deep Fascial Flap after Malignant Melanoma Ablation

The soft tissue structure near the medial malleolus is an area where the bone is covered only with thin skin and subcutaneous tissue without structures like ligaments or tendons. In addition to the above anatomical features, wearing normal footwear should be considered when reconstructing the soft tissues in these areas. Therefore, it may be desirable to restore the original thickness of the soft tissue when performing a reconstruction. The authors reconstructed defects on the medial malleolus of a 50-year-old woman, after wide excision of a malignant melanoma, using only a deep fascial flap based on the posterior tibial artery-based perforator. This technique is thought to be a good option for reconstructing soft tissue defects in this area.

Modified Anterior Tibial Artery Perforator-Pedicled Propeller Flap for Soft-Tissue Coverage of the Ankle and Heel.

The ankle and heel are challenging regions to reconstruct functionally. Here, we explored the feasibility and clinical outcomes of a modified anterior tibial artery perforator-pedicled propeller flap for the repair of soft-tissue defects of the ankle and heel. Between January 2013 and December 2015, 12 patients with soft-tissue defects of the ankle and/or heel underwent reconstructive surgery that included our flap technique. The flaps measured 20 × 8cm to 7 × 4cm. A hand-held Doppler was used to identify a proper constant perforator in the distal ankle. In each case, the base of the flap was well preserved. The flap was transposed (180° rotation) to reach and cover the defect. The average follow-up time was 13months (10-28months). We observed good texture matches and contour in all of the flaps. All patients could walk and wear normal footwear. All but one flap survived completely without complications. Partial loss was observed in one patient, and the necrotic region was healed with secondary intention. Our modified anterior tibial artery free-style perforator-pedicled propeller flap provides a novel option for functional ankle and heel reconstruction. Level IV.

Management of spiral diaphyseal fractures of the fifth metatarsal: A case series and a review of literature

IntroductionSpiral diaphyseal fractures of the fifth metatarsal can present with significant displacement. It is considered that non-operative management is sufficient in most cases but there is no clear consensus as to what this may be. This study reports the functional outcome of this injury in a small patient cohort and is the first study to report on outcomes of different non-operative measures. Material and methodsThis is a retrospective study of 33 consecutive patients presenting to a central London teaching hospital who were managed by a variety of treatment modalities depending on surgeon preference which included a boot or a rigid sole shoe. Demographic data was obtained and time to pain free walking and return to normal footwear was recorded. The patients were asked how restrictive the injury was on a Likert scale (1–5). The average final follow up was 12 months. ResultsAll fractures were managed conservatively with excellent functional outcomes. Those patients managed in a shoe had a statistically significant shorter average time to return to pain free walking (4.6 vs 8.4 weeks, p=0.027) and average time to return to normal footwear (6 vs 7.3 weeks, p=0.044) in comparison to a boot. Patients managed in a shoe reported the injury was less restrictive in comparison to patients managed in a boot (p=0.0002). The average time to evidence of bony union was 8.3 weeks. There were 3 delayed unions. ConclusionAll patient in this series were treated without surgery regardless of the degree of displacement. Conservative management of this fracture in a rigid sole shoe resulted in better outcomes and was reported to be less restrictive by the patients in comparison to a boot. On this basis, non-surgical management of these injuries is recommended in a shoe, full weight bearing with early range of movement of the ankle.

Understanding childhood lymphoedema

Lymphoedema in children can present at any age and can result in major physical and psychological problems, delayed diagnosis, and conflicting and unhelpful information from clinicians and teachers. Parents are often equally distressed by the clinical failures and witnessing their children's distress. Management of lymphoedema focuses on compression, which children and adolescents find to be old fashioned, affects the ability to wear normal clothing and footwear, and encroaches on time with peers. Being different can also lead to being targeted by bullies, being stared at by adults, and undermine their attempts at experiencing normality. Specialist lymphoedema practitioners can provide an accurate diagnosis and adapt treatment to meet the individual needs of young people and can help overcome these difficulties. They are also known to improve levels of support, motivation and treatment outcomes.

Preliminary results of the new lipogluing technique plus full-thickness skin graft in post traumatic lower limb reconstructive surgery

Soft tissue reconstruction of a complex wound in the lower leg still presents a challenge to reconstructive surgeons, especially in the foot and ankle with exposed bones. We report the preliminary results of soft tissue complex defect treatment and coverage with our new lipogluing technique plus full-thickness skin graft. From September 2015, five patients with complex soft tissue defects on the lower leg underwent the coverage procedure with our new lipogluing technique plus full-thickness skin graft. At the first surgical step after standard debridement, we fix by fibrin glue the graft of fat cells withdrawn using the standard Coleman technique. Lipoglued fat cells enhance the soft tissue cover and better supplement the final skin thickness and pliability. This allows us to achieve the ultimate goal of reconstructive procedures: the recreation of all anatomical cutaneous and subcutaneous layers. Based on this preliminary personal experience, reliable information can be given about the safety, effectiveness, and usefulness of the lipogluing technique plus skin graft. All patients were able to wear normal footwear and to return to their usual activities thanks to the good results obtained and, when necessary, to thin coverage. To date, the coverage appears durable on all patients and they do not show any secondary problems of skin ulceration or breakdown. The lipogluing technique represents an evolution of the reconstructive process that aims to augment the autologous soft tissue under the skin graft avoiding more invasive procedure, in order to obtain a skin cover that feels natural. Level of Evidence: Level V, therapeutic study.

Good-bye slippage - a new fusion to tackle bandage slippage on the foot

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Functional Outcomes of Local Pedicle Graft Interpositional Arthroplasty in Adults With Severe Freiberg's Disease.

Conservative treatment or debridement is generally sufficient for Freiberg's disease grades I and II but operative intervention for the late stages of the disease process (III-V) is more challenging. Debridement alone is not sufficient and various forms of arthroplasty have been put forward. We have evaluated the outcomes of patients treated with an interpositional arthroplasty technique using a pedicle graft of periosteum and fat made into a "Rollmop" spacer for severe Freiberg's disease. No results have previously been reported for this technique. Twenty-five consecutive cases (23 patients) were performed from February 2009 to September 2016 (20 females, 5 males). Mean age at surgery was 52.6 years (range 19-70.5 years) with 92% affecting the second metatarsal. Twenty-three were primary cases and 2 were revision cases. Five cases were stage III, 12 were stage IV, and 8 were stage V. All patients underwent interpositional arthroplasty using a periosteum and fat pedicle graft from the affected metatarsal shaft as described by Myerson. Patients were evaluated using Manchester-Oxford Foot Questionnaire (MOXFQ) and American Orthopaedic Foot & Ankle Society Questionnaire (AOFAS). Mean follow-up was 3.5 years (0.6-7.6 years). Paired 2-tailed Student t tests were used to assess clinical significance. Surgery allowed 8 patients to return to normal footwear, 10 patients returned to fashion footwear/heels, and 5 returned to sports. Nineteen cases (17 patients) were assessed with patient-reported outcome measures and all showed a clinically and statistically significant improvement in their scores. Mean pre- and postoperative VAS pain scores were 6.2 (range 4-9) and 1.8 (range 0-6) ( P < .05). Mean perioperative AOFAS scores were 45.6 (range 15-73) and 82.7 (range 57-100) ( P < .05). Mean perioperative MOXFQ scores were 60.0 (range 23-89) and 18.1 (range 0-80) ( P < .05). This novel interpositional arthroplasty technique using a "rollmop" of periosteum and fat for severe Freiberg's disease produced significant improvements in pain, functional outcome, and patient satisfaction without donor site morbidity. Furthermore, it allowed patients to return to desired footwear and sporting activities. The functional outcome and joint range of motion was superior after a K-wire was no longer placed across the joint, and we believe it is essential to avoid this to permit early range-of-motion exercises. Level IV, retrospective case series.

Epidermal inclusion cyst with foreign-body giant-cell reaction treated with surgical excision and rotational flap closure: A case report

Epidermal inclusion cysts (epidermoid cysts) occur from penetration of epidermal cells into underlying dermal tissue. They are most commonly found on the scalp, face, neck, and back with a reported incidence of 10% on the extremities. We present the case of a 53-year-old female who presented with complaint of a painful plantar forefoot soft-tissue mass of insidious origin. After magnetic resonance imaging, she was treated with surgical excision and plastic rotational flap closure. The surgical site healed without incident, and she was able to ambulate pain free in her normal footwear with full weight bearing and no shoe modifications or orthotics. This case was novel in that the size of the lesion required the use of a uni-lobe full-thickness rotational skin flap to achieve complete tension-free closure.