Outcomes of Ulnar Shortening Osteotomy with an Intramedullary Bone Graft for Idiopathic Ulnar Impaction Syndrome.

Background: Although several techniques for the treatment of ulnar impaction syndrome (UIS) have been introduced, there have still been reports on various complications such as delayed union, nonunion, refracture, wrist pain, plate irritation, and chronic regional pain syndrome. This study aimed to compare the differences in radiological and clinical outcomes of patients in which intramedullary bone grafting was performed in addition to plate stabilization with those without additional bone grafting during ulnar shortening osteotomies (USOs).

Methods: Between November 2014 and June 2021, 53 wrists of 50 patients with idiopathic UIS were retrospectively reviewed.

Hand and wrist - what the hand surgeon wants to know from the radiologist.

Hand surgeons, as unique specialists, appreciate the complexity of the anatomy of the hand. A hand is not merely a group of anatomic structures but a separate organ that works by feeling, sending information to the brain, and enabling a variety of movements, from precise skills to firm tasks. Acute and chronic problems interfere with complicated hand function and potentially influence work or daily life activities for a long time.

Correction of Congenital Ring-Little Finger Metacarpal Synostosis Through Simultaneous Interpositional Allograft Bone After Split Osteotomy of the Synostosis Site and Distraction Lengthening of the Fifth Metacarpal.

Purpose: We attempted a technique for patients with congenital ring-little finger metacarpal synostosis involving simultaneous interpositional allograft bone after split osteotomy of the synostosis site and distraction lengthening of the fifth metacarpal along with correction of the metacarpal joint abduction contracture. The purpose of this study was to describe the surgical technique and its outcomes.

Methods: We reviewed the medical records of children with congenital ring-little finger metacarpal synostosis treated surgically at our institute.

Incidence and Risk Factors for Pregnancy-Related de Quervain's Tenosynovitis in South Korea: A Population-Based Epidemiologic Study.

Background: Although pregnant or lactating women have been recognized to be predisposed to de Quervain's tenosynovitis (DQT), there is a lack of epidemiologic evidence. The purpose of this study was to estimate the nationwide incidence of pregnancy-related DQT (PRDQT) and to analyze risk factors using the Korean National Health Insurance (NHI) database.

Methods: A retrospective epidemiologic study of pregnant women in South Korea from 2013 to 2017 was conducted using the NHI claims database.

The Natural History of Kienböck's Disease Diagnosed at More than 50 Years of Age.

Background: Previous literatures suggest that the prognosis of Kienböck's disease might be favorable despite no surgery if it is diagnosed in late age, but the evidence is not clear. The aim of this study was to determine the radiographic and clinical progression of Kienböck's disease diagnosed at more than 50 years of age.

Methods: Data of 27 patients diagnosed with Kienböck's disease at more than 50 years of age between 2000 and 2016 were investigated.

Rotational osteo-onychocutaneous flap for central polydactyly of the foot: A novel technique for correction of the deformity.

Eccentric location of two nails like eyes of a bird are frequently observed in central polydactyly of the foot. A novel technique of rotational osteo-onychocutaneous (OOC) flap procedure is introduced to correct this deformity. Six children with central polydactyly of the foot who showed eccentric locations of nails were operated by this technique.

Improving Understanding and Outcomes in Congenital Hand Differences.

It is very important for us, the surgeons, to understand the difficulties of parents who have a baby with a congenital hand difference, not only because the parents are the decision makers for the operation but also because they need consolation and care to overcome their distress. The psychological and physical developmental milestones of the child with a congenital hand difference should be considered to achieve a satisfactory surgical outcome from the viewpoint of both the surgeon and the child. Even experts in congenital hand differences may have difficulties in decision-making with regard to certain entities because of the clinical diversity and rarity.

In Situ Neurolysis of Ulnar Nerve for Patients With Failed Anterior Subcutaneous Transposition - A Case Series.

Background: Various surgical techniques have been attempted to treat patients with failed anterior subcutaneous transposition performed for cubital tunnel syndrome.

Objective: To analyze intraoperative findings of failed anterior subcutaneous transposition and to report the outcome of in Situ neurolysis of ulnar nerve.

Methods: Patients who, under diagnosis of failed anterior subcutaneous transposition of ulnar nerve, underwent in Situ neurolysis between 2001 and 2018 were included in this study.

Diagnosis of Neurogenic Thoracic Outlet Syndrome Based on the Clinical Status.

Objectives: At our institute, we devised a clinical algorithm for diagnosis of neurogenic thoracic outlet syndrome (TOS). Our approach assisted in the accurate diagnosis and in detection of patients likely to benefit from surgical treatment. The purposes of this study were to propose our diagnostic approach to neurogenic TOS, and to describe the outcomes of surgical and conservative treatment.

Measurement of compensatory wrist joint rotation using three-dimensional motion analysis in patients with unilateral proximal congenital radioulnar synostosis.

Objective: This study aims to investigate compensatory rotational movements of the wrist joint in patients with proximal congenital radioulnar synostosis (CRUS), using a valid and reliable three-dimensional (3D) motion analysis technique.

Methods: A total of 26 patients (6 females, 14 males; mean age=15.3 years; and age range=6-32 years) who were diagnosed with unilateral proximal CRUS but were not operated were enrolled in this study.

Epidemiology of congenital upper limb anomalies in Korea: A nationwide population-based study.

This study aimed to analyze the epidemiology of congenital upper limb anomalies (CULA) in Korea. We evaluated the incidence of each type of CULA, the presence of coexisting anomalies and the surgical treatment status in CULA patients. We conducted a retrospective cohort study of patients aged < 1 year between 2007 and 2016 who were registered with CULA in the Health Insurance Review and Assessment Service of Korea.

Early Surgical Treatment of Both Tumor and Fracture in Patients With Enchondroma of the Hand Combined With Pathologic Fracture.

Purpose: The aims of this study were to evaluate the degree of cortical thinning and the tumor area in simple radiographs in patients with enchondroma of the hand combined with pathologic fracture and to determine the surgical outcome of simultaneous tumor curettage and internal fixation of fracture.

Methods: We enrolled 23 bone lesions of 21 patients diagnosed with enchondroma of the hand. Of them, 9 bone lesions of 8 patients had pathologic fracture.

When Is Primary Metacarpal Corrective Osteotomy Recommended in Patients with Flatt Type IV Radial Polydactyly?

Background: The aim of this study was to determine when primary metacarpal corrective osteotomy is recommended in patients with Flatt type IV radial polydactyly.

Methods: A total of 78 patients with Flatt type IV radial polydactyly were included. The authors performed metacarpal osteotomy if the angulation of the metacarpophalangeal joint was not correctable by the intraoperative radial stress test.

The impact of COVID-19 pandemic on orthopaedic resident education: a nationwide survey study in South Korea.

Purpose: There have not been well-designed survey studies investigating the impact of the coronavirus disease 2019 (COVID-19) pandemic on orthopaedic resident education.

Methods: A 58-question, web-based survey was administered to orthopaedic residents in South Korea. A total of 229 orthopaedic residents from 43 hospitals completed the survey questionnaire.

Evaluation and Management of Osteoporosis and Sarcopenia in Patients with Distal Radius Fractures.

Distal radius fractures (DRFs) are one of the most common fractures seen in elderly people. Patients with DRFs have a high incidence of osteoporosis and an increased risk of subsequent fractures, subtle early physical performance changes, and a high prevalence of sarcopenia. Since DRFs typically occur earlier than vertebral or hip fractures, they reflect early changes of the bone and muscle frailty and provide physicians with an opportunity to prevent progression of frailty and secondary fractures.

Prevalence and distribution of MRI abnormalities in the articular cartilage and supporting ligaments in patients with early clinical stage first carpometacarpal joint osteoarthritis.

Objective: We used magnetic resonance imaging (MRI) to evaluate where articular degeneration begins and which ligaments are most often involved in the early clinical stage first carpometacarpal joint (CMCJ-1) osteoarthritis.

Materials And Methods: We retrospectively analyzed the MRI findings of 26 patients with early clinical stage CMCJ-1 osteoarthritis and no radiologic abnormalities and 19 control patients without CMCJ-1 pain or osteoarthritis who underwent MRI for dorsal or ulnar wrist pain. Two observers blinded to group and clinical findings independently assessed the presence of chondral defects in four quadrants of the CMCJ-1: volar-ulnar (VU), volar-radial (VR), dorso-ulnar (DU), and dorso-radial (DR).

Computed Tomography Evaluation of Forearm and Hand Muscles in Patients With Distal Radius Fracture.

Introduction: Computed tomography (CT) can be used to assess bone status with measurement of Hounsfield unit (HU). The objective of this study was to evaluate whether HU of muscle might be associated with parameters of bone and muscle status.

Methods: We reviewed 71 women aged over 50 yr of age who had distal radius fracture and underwent CT evaluation of affected wrist.

Free Flaps for Soft Tissue Reconstruction of Digits.

Soft tissue reconstruction of the digit is challenging for hand surgeons because it must satisfy both functional and aesthetic requirements. A wide variety of treatment options exist. A free flap can be an alternative solution in some clinical situations.

Biomechanical comparison of three tension band wiring techniques for transverse fracture of patella: Kirschner wires, cannulated screws, and ring pins.

Purpose: The purpose of this study is to compare biomechanical characteristics of tension band wiring using Kirschner wires (TBWKW), cannulated screws (TBWCS), and ring pins (TBWRP) for transverse fracture of the patella.

Methods: A total of 48 polyurethane synthetic patellae were biomechanically tested. All patellae were osteotomized to create a transverse fracture.