Biomechanical consequences of Zadek osteotomy in insertional achilles tendinopathy: A virtual surgical simulation study.

Background: The Zadek osteotomy modified by Taylor (ZO) is a surgical technique used to treat insertional Achilles tendinopathy (IAT) by reducing the heel's prominence and elevating the Achilles tendon insertion. This study aims to analyze the biomechanical consequences of IAT after ZO using a virtual surgical simulation with a specific software.

Methods: A retrospective analysis of 20 wtbearing computed tomography (WBCT) scans of IAT patients was conducted.

Risk Factors for Midfoot Arthritis Associated With Medical History by Weight Bearing Computed Tomography.

Tarso-metatarsal joints and naviculocuneiform joints comprising midfoot is the second most commonly involved joints following the first metatarsophalangeal joint in the foot. However, related factors of midfoot arthritis (MA) have been rarely reported. The bony structure and alignment can be more precisely assessed using Weight-Bearing Computed Tomography (WBCT) than conventional radiographs.

Prevalence of midfoot arthritis and lesser toe deformities.

Background: The aim of this study was to investigate the epidemiology of Midfoot Arthritis (MA) and Lesser toe deformity (LTD) using Weight-Bearing Computed Tomography (WBCT).

Methods: 606 cases (247 male, 359 female) among 1316 consecutive cases with WBCT data from September 2014 to April 2022 were retrospectively reviewed at a single referral institution. The Cochran-Armitage test was performed to evaluate the trend of prevalence with respect to age group and obesity classification.

Deformities Influencing Different Classes in Progressive Collapsing Foot.

Background: The current classification system of progressive collapsing foot deformity (PCFD) is comprised of 5 possible classes. PCFD is understood to be a complex, three-dimensional deformity occurring in many regions along the foot and ankle. The question remains whether a deformity in one area impacts other areas.

The Role of the Transverse Arch in Progressive Collapsing Foot Deformity.

Background: The transverse arch (TA) has recently been shown to significantly increase the intrinsic stiffness of the midfoot when coupled with the medial longitudinal arch (MLA). Progressive collapsing foot deformity (PCFD) is a complex deformity that ultimately results in a loss of stiffness and collapse of the MLA. The role of the TA has not been investigated in patients diagnosed with this disorder using weightbearing CT (WBCT).

Relationship Between Obesity and Medial Longitudinal Arch Bowing.

Background: There have been reports about the association between obesity and the medial longitudinal arch (MLA) of foot. The purpose of this study is to investigate the change of various parameters related to the MLA according to obesity classification severity by the World Health Organization using weightbearing computed tomography (WBCT).

Methods: WBCT data of the noninvolved side of patients presenting with unilateral foot and ankle problems or healthy candidates from September 2014 to October 2022 were extracted from a single referral hospital.

Effect of Peritalar Subluxation Correction for Progressive Collapsing Foot Deformity on Patient-Reported Outcomes.

Background: Peritalar subluxation (PTS) is part of progressive collapsing foot deformity (PCFD). This study aimed to evaluate initial deformity correction and PTS optimization in PCFD patients with flexible hindfoot deformity undergoing hindfoot joint-sparing surgical procedures and its relationship with improvements in patient-reported outcome measures (PROMs) at latest follow-up. We hypothesized that significant deformity/PTS correction would be observed postoperatively, positively correlating with improved PROMs.

Distribution, prevalence, and impact on the metatarsosesamoid complex of first metatarsal pronation in hallux valgus.

Background: Previous simulated weight-bearing CT (WBCT) studies classifying first metatarsal (M1) pronation suggested a high prevalence of M1 hyper-pronation in hallux valgus (HV). These findings have prompted a marked increase in M1 supination in HV surgical correction. No subsequent study confirms these M1 pronation values, and two recent WBCT investigations suggest lower normative M1 pronation values.

Conservative treatment of refractures after modified tension band wiring of fifth metatarsal base stress fractures in athletes.

Objective: Recurrent fifth metatarsal base stress fractures (MT5-BSF) in athletes present a challenging problem. The aim of this study was to evaluate the result of conservative treatment for the refracture of MT5-BSF after modified tension band wiring (MTBW).

Materials And Methods: The outcomes of 15 elite athletes undergoing conservative treatment for refracture of MT5-BSF after MTBW were retrospectively reviewed.

A Case of Mural Endocarditis Presenting With Complete Atrioventricular Block after Liver-Kidney Transplantation.

• endocarditis is a rare but fatal complication in immunocompromised hosts. • mural endocarditis is rapidly progressive and shows a fatal outcome. • Clinical suspicion and early echocardiography are key for the diagnosis.

The preliminary report about the modified supramalleolar tibial osteotomy for asymmetric ankle osteoarthritis.

Objective: Supramalleolar tibial osteotomy (SMO) for asymmetric ankle osteoarthritis (OA) is known to lead to satisfactory. Here, authors present a preliminary report on SMO surgical treatment in patients with asymmetric ankle arthritis.

Materials And Methods: We reviewed cases of asymmetric ankle OA treated by modified SMO between January 2011 and October 2015.

Digital Measurements With Hallux Valgus Before and After Modified Long Oblique Osteotomy.

Radiographic measurements of the hallux valgus (HV) angle (HVA) and the first intermetatarsal angle (IMA) are important for assessing the severity of HV. The purpose of the present study was to digitally investigate the intraobserver and interobserver reliability of various methods for measuring HVA and IMA, as well as each axis composing them, such as axes of the first proximal phalanx (PP1), the first metatarsal (MT1), and the second metatarsal (MT2) in patients with a metatarsal shaft osteotomy-modified long oblique osteotomy. Three orthopedic surgeons measured the HVA, IMA, and the angles between axes of PP1, MT1, and MT2, and the digitally-set reference line (α, β, and γ, respectively) using 6 different methods for 39 patients with a minimum of 1 year of follow-up after operative treatment.

Predictors for Amputation in Patients with Diabetic Foot Wound.

Purpose: Diabetic foot wound (DFW) is known as a major contributor of nontraumatic lower extremity amputation. We aimed to evaluate overall amputation rates and risk factors for amputation in patients with DFW.

Materials And Methods: From January 2014 to December 2017, 141 patients with DFW were enrolled.

Consequences of Avulsion Fracture of the Proximal Phalanx Caused by a Technical Failure of Hallux Valgus Surgery.

Several cases of avulsion fracture of the proximal phalanx of the big toe during the lateral capsular release procedure were observed. However, these fractures have not been reported as a complication of hallux valgus surgery. The purpose of the present study was to report the proximal phalanx base fracture as an unrecognized complication and to evaluate the clinical and radiographic consequences of this complication.

Schwannomatosis on a single foot: a case report.

Unlabelled: Schwannomatosis has been recently recognized as the third major type of neurofibromatosis. It causes multiple schwannomas without the vestibular tumors that are diagnostic of neurofibromatosis type 2. Schwannoma is rarely found in the foot, and it is still rarer to find multiple schawannomas in a single peripheral nerve on the foot.

Factors associated with recurrent fifth metatarsal stress fracture.

Background: Many surgeons agree that fifth metatarsal stress fractures have a tendency toward delayed union, nonunion, and possibly refracture. Difficulty healing seems to be correlated with fracture classification. However, refracture sometimes occurs after low-grade fracture, even long after apparent resolution.

Midterm outcome of modified Kidner procedure.

Background: The results of modified Kidner procedures have generally been satisfactory at short-term followup. The objective of this study was to evaluate the midterm followup results including medial longitudinal arch height.

Methods: Forty-one patients (50 feet) with a symptomatic accessory navicular who underwent the modified Kidner procedure between July 1999 and February 2004 were evaluated.

Radiographic evaluation of foot structure following fifth metatarsal stress fracture.

Background: Correlation between foot structure and stress fracture risk has not been adequately evaluated or proven. The purpose of this study was to compare foot structure in fracture cases versus control with respect to radiological parameters in stress fractures of the fifth metatarsal.

Materials And Methods: The study group consisted of 50 consecutive athletes with a diagnosis of fifth metatarsal stress fracture and a control group matched for sport type and age.

Long-term results after modified Brostrom procedure without calcaneofibular ligament reconstruction.

Background: The short-term results of modified Brostrom procedures (MBP) have been satisfactory. However, the long-term results of anatomical reconstruction have been less frequently reported. We report on our long-term results in our patient group.

Perioperative complications of the MOBILITY total ankle system: comparison with the HINTEGRA total ankle system.

Background: The perioperative complications associated with MOBILITY total ankle replacement arthroplasty have not yet been reported.

Methods: During the research period from May 2008 to June 2009, a total of 30 consecutive cases of ankle arthritis were treated with surgery. An investigation into the perioperative complications for these cases was conducted.