Correlation between electrodiagnostic severity and Boston carpal tunnel questionnaire in surgically treated carpal tunnel syndrome patients.

Objective: The objectives of this study were to (1) investigate whether electrodiagnostic (EDX) findings reflect the preoperative symptom severity and functional impairment in patients with carpal tunnel syndrome (CTS) and (2) evaluate the relationship between EDX findings and the clinical outcomes reported according to the self-administered patient questionnaires.

Methods: Patients diagnosed with idiopathic CTS who underwent carpal tunnel release between May 2016 and July 2018 were included. Carpal tunnel syndrome was clinically diagnosed and confirmed based on the EDX findings.

Cancellous bone graft from the distal radius and headless screw fixation for unstable scaphoid waist nonunion.

Purpose: Cancellous bone harvested from the distal radius has been used in various hand surgeries, but studies on its use in scaphoid waist nonunions are insufficient. We investigated the usefulness of cancellous bone graft from the distal radius and headless screw fixation in unstable scaphoid waist nonunion.

Methods: Thirty-one patients who underwent cancellous bone graft from the distal radius and headless screw fixation for unstable scaphoid waist nonunion with follow-up for at least 1 year were included.

A novel classification of Kienbock's disease based on magnetic resonance imaging.

Purpose: We devised a classification system for Kienbock's disease using magnetic resonance imaging (MRI). Moreover, we compared it with the modified Lichtman classification and evaluated the inter-observer reliability.

Methods: Eighty-eight patients diagnosed with Kienbock's disease were included.

Patient expectations and satisfaction in hand surgery: A new assessment approach through a valid and reliable survey questionnaire.

Introduction: Assessing patient expectations in orthopaedic surgery has gained significant importance over time. However, there have been only a few studies on how to measure such expectations in hand surgery. Against the backdrop, the study was designed to develop a valid and reliable expectations survey for patients undergoing hand surgery and to identify the correlations between preoperative expectations and postoperative satisfaction.

Reliability and validity of the modified McGowan grade in patients with cubital tunnel syndrome.

Introduction: This study aimed to assess the reliability and validity of the modified McGowan grading system and to determine its ability to distinguish the severity of cubital tunnel syndrome (CuTS) between the different grades.

Materials And Methods: We prospectively enrolled 39 consecutive patients with CuTS from March 2018 to December 2020. Inter- and intra-observer reliability was assessed by two orthopaedic surgeons with a minimum 2-week interval using Cohen kappa coefficients.

Comparison of mesenchymal stem cell attachment efficiency in acellular neural graft for peripheral nerve regeneration.

Decellularized nerve allograft is an alternative to autologous nerve graft for nerve defects but has shown inferior clinical outcomes. Mesenchymal stem cells can play a key role in improving nerve regeneration of decellularized nerve allografts. The purpose of this study was to compare different mesenchymal stem cell seeding methods and to find the most efficient way to attach cells to nerve grafts for peripheral nerve regeneration.

Immediate Weightbearing and Ankle Motion Exercise After Acute Achilles Tendon Rupture Repair.

The incidence of Achilles tendon rupture is increasing. Postoperative rehabilitation after repairing acute Achilles tendon rupture is very important because the choice of treatment during the rehabilitation period can influence the results. Moreover, the method of functional rehabilitation varies and is developing steadily.

Usefulness of three-dimensional computed tomography for patellofemoral measurement.

Purpose: This study aimed to establish the normal values for knee patellofemoral alignment as measured using 3-dimensional computed tomography (3D CT), to standardize the technique, and to show the inter- and intra-observer reliability of this measurement.

Methods: The present study included 62 asymptomatic volunteers (124 knees). 3D CT scanning was performed with each volunteer in the supine position with 15° of knee flexion, and consistent 3D axial images of the patellofemoral joint were obtained with alignment in the desired stereographic baseline direction in anterior-posterior, lateral, and axial rotations.

Comparison of surgical outcomes between single versus dual K-wire fixation for unstable distal phalanx fractures.

Distal phalanx fractures are the most common injuries of the hand, and K-wire fixation is commonly performed for unstable fractures. However, there is no consensus regarding the number of K-wires to use in bone fixation. We aimed to compare the results between single and dual K-wire pinning.

Treatment of forearm diaphyseal non-union: Autologous iliac corticocancellous bone graft and locking plate fixation.

Introduction: Studies conducted on forearm bone diaphysis non-union are limited due to the rarity of this condition. The present study aimed to evaluate the outcome of our technique using autologous iliac corticocancellous bone graft fixed by locking plate system for the forearm bone diaphyseal non-union without infection.

Patients And Methods: We treated eight patients with non-union of radial or ulnar shaft fracture (four men, four women) aged 38 years (range: 18-52 years) on average.

Preparation of human decellularized peripheral nerve allograft using amphoteric detergent and nuclease.

Animal studies have shown that amphoteric detergent and nuclease (DNase I and ribonuclease A) is the most reliable decellularization method of the peripheral nerve. However, the optimal combination of chemical reagents for decellularization of human nerve allograft needs further investigation. To find the optimal protocol to remove the immunogenic cellular components of the nerve tissue and preserve the basal lamina and extracellular matrix and whether the optimal protocol can be applied to larger-diameter human peripheral nerves, in this study, we decellularized the median and sural nerves from the cadavers with two different methods: nonionic and anionic detergents (Triton X-100 and sodium deoxycholate) and amphoteric detergent and nuclease (3-[(3-cholamidopropyl)dimethylammonio]-1-propanesulfonate (CHAPS), deoxyribonuclease I, and ribonuclease A).

Effect of Lower-Extremity Angular Imbalance on Foot and Ankle Pain in Patients With Genu Varus Deformity.

When there is a varus knee deformity, the ankle and foot compensate. However, the association between pain and angular change in the compensatory mechanism is not well understood. Therefore, we investigated the relationship between pain and angular change of the lower extremity in genu varus patients.

Bipolar Injury of the Clavicle.

Eleven patients with bipolar clavicle injuries, including dislocation of both ends of the clavicle, dislocation of the sternoclavicular joint with distal clavicle fracture, dislocation of the acromioclavicular joint with medial clavicle fracture, and segmental fracture of the clavicle, were retrospectively reviewed. The purpose of this study was to report the clinical outcomes and a literature review of bipolar clavicle injury. Nonoperative treatment was performed for 5 patients and surgical treatment for 6 patients.

Comparison of Revision Rates Due to Aseptic Loosening between High-Flex and Conventional Knee Prostheses.

Purpose: The purpose was to evaluate and compare the revision rate due to aseptic loosening between a high-flex prosthesis and a conventional prosthesis.

Materials And Methods: Two thousand seventy-eight knees (1,377 patients) with at least 2 years of follow-up after total knee arthroplasty were reviewed. Two types of implants were selected (LPS-Flex and LPS, Zimmer) to compare revision and survival rates and sites of loosened prosthesis component.

Preoperative predictors of patient satisfaction after carpal tunnel release.

Background: We investigated preoperative factors among demographic and clinical characteristics, as well as psychological factors that influence postoperative patient satisfaction, with the goal of assisting preoperative patient consultation for CTR.

Materials And Methods: We included 92 hands from 60 patients diagnosed with idiopathic carpal tunnel syndrome. We selected the following factors as possible preoperative predictors for patient satisfaction: age, sex, duration of symptoms, static two-point discrimination, the Semmes-Weinstein monofilament test, grip strength, electrophysiological category and scores for the Boston Carpal Tunnel Questionnaire, the Pain Anxiety Symptoms scale and the Center for the Epidemiological Study of Depression scale.

Measurement of Carpal Alignment Indices Using 3-Dimensional Computed Tomography.

Purpose: This study aimed to establish normal values for wrist carpal alignment measured by 3-dimensional computed tomography (CT) and to show the inter- and intraobserver reliability of this measurement compared with simple radiography.

Methods: The study utilized 3-dimensional CT and simple radiography of wrist joints in 30 asymptomatic volunteers. The wrist position was standardized using a custom-designed positioning device.

Comparison of outcomes between partially healed and acute metaphyseally malaligned distal radial fracture treated by palmar locking plate fixation.

Background: The purpose of this study was to determine whether a partially healed (surgical delay of 2-6 weeks) metaphyseally malaligned distal radius fracture (DRF) treated using the extended palmar approach with palmar locking plate fixation has poorer clinical or radiological outcomes than those of acute (surgical delay of ≤2 weeks) metaphyseally unstable DRF treated by palmar locking plate fixation.

Methods: We identified 24 patients (Group A) who were treated with palmar locking plate for a partially healed (surgical delay of 2-6 weeks) metaphyseally malaligned DRF. We selected 48 patients (Group B) who were treated with palmar locking plate among the acute (surgical delay of ≤2 weeks) metaphyseally unstable DRF to be individually matched in a 1:2 ratio for sex, age, and fracture type.

Valgus Ankle Degenerative Arthritis with an Isolated Deltoid Insufficiency and Tibial Varus: A Case Report.

We report a case of valgus ankle degenerative arthritis due to chronic isolated deltoid insufficiency combined with tibial varus that was treated successfully with ankle joint preserving surgery. A 63-year-old male complained of right lateral ankle pain with 10 minutes of maximal pain-free walking time. The assessed American Orthopaedic Foot and Ankle ankle-hindfoot scale score was 33 points.

Radiological assessment of the safe zone for medial minimally invasive plate osteosynthesis in the distal femur with computed tomography angiography.

Introduction: Surgical treatment options for distal femur fractures include intramedullary nailing or plating using a lateral or lateral parapatellar approach. However, medial plating is required for additional stability in some fractures such as severely comminuted fractures and periprosthetic fractures, and in those for which use of a lateral plate or nail is not appropriate. This study aimed to explore the safe zone for medial minimally invasive plate osteosynthesis of the distal femur with computed tomography angiography.