Muscle volume evaluation using 3DCT for congenital clubfoot.

Background: In congenital clubfoot, the lower leg is very thin and the calf muscles are hypoplasic. However, there are few studies reporting real muscle volume.

Purpose: The purpose of this study is to assay the muscle volume in congenital clubfoot using 3DCT and to quantify the degree of the hypoplasia.

Ultimate Load Measuring System for Fixation of Soft Tissue to Bone.

Background: The initial ultimate load for graft fixation is one of the essential factors in the reconstruction of lateral ankle ligaments. Several anchoring devices have been developed to fix the substitute ligament into the bone. A fair comparison of these fixation methods warrant a reproducible examination system.

Performance of Forward Roll Maneuvers Following Corrective Spinal Fusion for Idiopathic Scoliosis Patients.

Background: Fusion surgeries for scoliosis patients are believed to deteriorate sports performance; in particular, forward roll should deteriorate, but no literature is available to substantiate this claim.

Hypothesis: The extent of postoperative deterioration can vary according to surgery type or curve type.

Patients And Methods: Idiopathic scoliosis patients between 10 and 29 years of age who underwent correction and fusion surgeries at our hospital were included in this study.

Strain patterns in normal anterior talofibular and calcaneofibular ligaments and after anatomical reconstruction using gracilis tendon grafts: A cadaver study.

Background: Inversion ankle sprains, or lateral ankle sprains, often result in symptomatic lateral ankle instability, and some patients need lateral ankle ligament reconstruction to reduce pain, improve function, and prevent subsequent injuries. Although anatomically reconstructed ligaments should behave in a biomechanically normal manner, previous studies have not measured the strain patterns of the anterior talofibular ligament (ATFL) and calcaneofibular ligament (CFL) after anatomical reconstruction. This study aimed to measure the strain patterns of normal and reconstructed ATFL and CFLs using the miniaturization ligament performance probe (MLPP) system.

The impact of self-efficacy for physical activity on health-related quality of life in total knee arthroplasty recipients.

Background: Some patients with end-stage osteoarthritis of the knee remain unsatisfied after total knee arthroplasty (TKA). We postulated that to increase satisfaction, self-efficacy (SE) for physical activity should receive more attention in rehabilitative intervention, alongside the management of patient expectations, pain, and function.

Objective: We examined the relative impact of Physical Activity SE on Health-Related Quality of Life (HRQOL) alongside other factors such as pain and physical function which are well-addressed by current interventions.

Pre-existing vertebral fracture is a risk factor for postoperative proximal junctional fracture after adult spinal deformity surgery: A propensity score-matched analysis.

Background: Corrective surgery for adult spinal deformity has recently been increasingly performed because of aging populations and advances in minimally invasive surgery. Low bone mineral density is a major contributor to proximal junctional kyphosis after spinal long fusion. Assessment for low bone mineral density ideally involves both dual energy X-ray absorptiometry and identification of pre-existing vertebral fractures, the latter, requiring only standard equipment, being performed more frequently.

Three-dimensional analysis of anterior talofibular ligament strain patterns during cadaveric ankle motion using a miniaturized ligament performance probe.

Background: Measuring the strain patterns of ligaments at various joint positions informs our understanding of their function. However, few studies have examined the biomechanical properties of ankle ligaments; further, the tensile properties of each ligament, during motion, have not been described. This limitation exists because current biomechanical sensors are too big to insert within the ankle.

3D-CT stress test for the assessment of CFL insufficiency.

Background: Following ankle sprains, some patients complain of their ankles "giving way," characterized by functional instability with no positive findings in traditional stress tests. The calcaneofibular ligament (CFL) may contribute to the stabilization of the subtalar and talocrural joints, and some functional instability may be due to CFL insufficiency. We aimed to clarify and quantitatively assess CFL insufficiency with three-dimensional stress computer tomography (CT) using the Pronation-External Rotation Stress Test (PERST).

Reproducibility and reliability of performance indicators to evaluate the therapeutic effectiveness of biofeedback therapy after elbow surgery: An observational case series.

Electromyographic biofeedback (EMG-BF) therapy provides information on the state of contraction of the targeted muscles and relaxation of their antagonists, which can facilitate early active range of motion (RoM) after elbow surgery. Our aim in this study was to calculate the minimum detectable change (MDC) during EMG-BF therapy, initiated in the early postoperative period after elbow surgery.This study is an observational case series.

Suture anchor stabilization of symptomatic accessory navicular in adolescents: Clinical and radiographic outcomes.

Background: Screw fixation used in modified Kidner procedures to treat persistent symptomatic accessory navicular in adult cases is often challenging in adolescent cases with a small accessory fragment. The present study aimed to document the clinical effect of a suture anchor stabilization technique applicable to such cases where osteosynthesis is considered an ideal outcome.

Methods: Consecutive clinical cases who received this surgical treatment from 2009 to 2016 were retrospectively reviewed.

Strain pattern of each ligamentous band of the superficial deltoid ligament: a cadaver study.

Background: There are few reports on the detailed biomechanics of the deltoid ligament, and no studies have measured the biomechanics of each ligamentous band because of the difficulty in inserting sensors into the narrow ligaments. This study aimed to measure the strain pattern of the deltoid ligament bands directly using a Miniaturization Ligament Performance Probe (MLPP) system.

Methods: The MLPP was sutured into the ligamentous bands of the deltoid ligament in 6 fresh-frozen lower extremity cadaveric specimens.

Effect of the Cell Alive System on nerve tissue cryopreservation.

Effective cellular cryopreservation while maintaining high cell viability is achieved by preventing intracellular and extracellular ice crystal formation using the Cells Alive System (CAS), a programmed freezer that applies a magnetic field. Here, the optimal temperature settings of the CAS were determined using rat sciatic nerves as a model tissue. Firstly, it was found that Schwann cell survival was increased by pre-cooling the samples in the ice crystal formation zone, increasing the freeze-thaw speed, and freezing-thawing in a magnetic field.

Factors influencing life-space mobility change after total knee arthroplasty in patients with severe knee osteoarthritis.

[Purpose] The purpose of this study was to identify the factors influencing change in life-space mobility after total knee arthroplasty (TKA) in patients with severe knee osteoarthritis (knee OA). [Participants and Methods] Overall, 58 primary unilateral TKA recipients (9 males and 49 females; age ± SD 74.6 ± 6.

The TRPV4-AKT axis promotes oral squamous cell carcinoma cell proliferation via CaMKII activation.

Most human malignant tumor cells arise from epithelial tissues, which show distinctive characteristics, such as polarization, cell-to-cell contact between neighboring cells, and anchoring to a basement membrane. When tumor cells invaginate into the stroma, the cells are exposed to extracellular environments, including the extracellular matrix (ECM). Increased ECM stiffness has been reported to promote cellular biological activities, such as excessive cellular growth and enhanced migration capability.

Effect of long spinal fusion including the pelvis on activities of daily living related to lumbar spinal function in adults with spinal deformity.

Background: Spinal sagittal malalignment is managed by long spinal fusion including the pelvis, which reduces lumbar spine range of motion and impairs the activities of daily living. This study aimed to evaluate the changes in activities of daily living after long spinal fusion in adults with spinal deformity, and clarify the improvement or deterioration in the specific activities of daily living postoperatively.

Methods: We retrospectively reviewed 40 adults who underwent long spinal fusion in a single institution between 2014 and 2016 (female/male, 39/1; mean age, 68.

Vascularized Iliac Bone Lining in Downgraded Treatment of Campanacci Grade III Giant Cell Tumor of the Distal Radius.

It is commonly accepted that wide en bloc resection followed by reconstruction is essential in progressive lesions (Campanacci grade III) for local control of possible recurrence. However, specific grade III can be downgraded and treated with intralesional curettage to preserve better wrist function, without increasing the recurrency rates. In this report, Grade III giant cell tumor of the distal radius was successfully treated using vascularized osseous graft from the inner lip of the iliac bone in addition to downgrading strategy.

"Silent Ruptures" of the Flexor Digitorum Profundus of the Little Finger due to Pisotriquetral Arthroses.

Asymptomatic pisotriquetral arthroses caused ruptures of the flexor digitorum profundus tendon of the little finger in 2 elderly patients. Ruptures occurred with unnoticeable onset, and bilateral ruptures separately occurred with interval of several years in one patient. The tendon was ruptured in zone IV with perforation of the gliding floor through which the degenerative pisiform was visible.

Does Graft on Flap Method Work on Sequela of Fingertip Amputation?

The graft on flap method, a useful option for the restoration of fresh fingertip amputation, was applied to the reconstruction of the short fingertip stumps resulting from the initial amputated stump plasties. As a modification, a nail bed graft from the big toe and a small cubic iliac bone graft were substituted for the lost tissues normally reduced as a composite graft in fresh cases. Upon follow-up ranging from 1 to 8 years, the grafted bone was found to have been resorpted in all cases.

Anatomy of anterior talofibular ligament and calcaneofibular ligament for minimally invasive surgery: a systematic review.

Purpose: To gain a better understanding of the precise anatomy of the lateral ligaments of the ankle through a systematic review of published cadaveric studies in order to improve anatomical minimally invasive surgery (MIS) for treatment of chronic ankle instability (CAI).

Methods: A systematic review of the literature was performed using the PubMed, EMBASE, Cochrane databases and Web of Science on June 2015 with the two search concepts: "lateral ligament of the ankle" and "anatomy". Anatomical studies that reported gross anatomy of the anterior talar fibular ligament (ATFL) and calcaneal fibular ligament (CFL) in English were included to assess the morphology and origins and insertions of the ligaments.

Three cross leg flaps for lower leg reconstruction of Gustilo type III C open fracture.

A 60 year old male had Gustilo type III C open fracture of the right lower leg. After radical debridement, the large open defect including certain loss of the bone tissue was successfully augmented and covered, by consecutive three cross-leg flaps, which consisted of the free rectus abdominis musculocutaneous flap, the fibula osteocutaneous flap and the conventional sural flap. Although indication for amputation or preservation is decided with multiple factors in each case, a strategic combination of cross-leg flap, free flap, external fixation and vascular delay could increase the potential of preservation of the lower leg with even disastrous Gustilo type III C.

Minimum 20 Years Long-term Clinical Outcome After Spinal Fusion and Instrumentation for Scoliosis: Comparison of the SRS-22 Patient Questionnaire With That in Nonscoliosis Group.

Study Design: A retrospective minimum 20-year follow-up study using 4 standard self-administered questionnaires, one of which, the SRS-22 was also administered to control groups.

Objective: To evaluate long-term postoperative pain and other clinical outcomes of scoliosis correction and fusion surgery with Harrington instrumentation using Moe square-ended rods for better preservation of sagittal alignment.

Summary Of Background Data: Only a few long-term outcome studies have used standardized and validated self-administered tools, and no studies have established SRS-22 control data within their own population.