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Tech Hand Up Extrem Surg 2018 Nov 30. Epub 2018 Nov 30.

Cleveland Clinic.

Ulnar-sided carpometacarpal (CMC) joint fracture dislocations are relatively uncommon, frequently associated with fractures of the metacarpal base and/or hamate, and often sustained by young male individuals secondary to striking a hard object. The complexity of ulnar-sided CMC fracture dislocations necessitates careful restitution of anatomic alignment and joint congruency for mobility and stability. Miniaturization of the external fixation device has allowed application to the hand. Read More

Medicine (Baltimore) 2018 Nov;97(46):e13275

Departments of Physical Medicine and Rehabilitation, Dongguk University College of Medicine, Gyeonggi-do.

Background: The aim of the study was to report characteristics of isolated hook of hamate fractures related to sports that require a strong grip and to identify factors affecting early diagnosis and recovery period.

Methods: A comprehensive literature search was conducted using MEDLINE, EMBASE, SCOPUS, Web of Science, the Cochrane Central Register of Controlled Trials, the World Health Organization International Clinical Trials Registry Platform, and the clinical trials registry and database of the US National Institutes of Health (ClinicalTrials.gov). Read More

J Hand Surg Asian Pac Vol 2018 Dec;23(4):441-449

1 Brighton and Sussex Medical School, University of Brighton, London, UK.

Background: Within hand trauma, the management of unstable, intra-articular fractures of the base of the middle phalanx remains highly controversial. The objective of this research was to determine which operation gives the best outcome in the management of displaced, intra-articular fractures of the base of the middle phalanx causing instability of the proximal interphalangeal joint.

Methods: A scoping study was performed to determine the evidence available and the terminology used. Read More

J Hand Surg Am 2018 Nov 9. Epub 2018 Nov 9.

Curtis National Hand Center, MedStar Union Memorial Hospital, Baltimore, MD. Electronic address:

Purpose: The purpose of this study was to determine the relationship between hemihamate graft size and proximal interphalangeal (PIP) joint flexion in a biomechanical fracture-dislocation model.

Methods: We simulated middle finger PIP fracture-dislocations in 5 cadaver hands by resecting 50% of the palmar articular surface of the middle phalanx (P2) base. Fluoroscopy was used to confirm dorsal subluxation of the middle phalanx base after resection. Read More

Arch Orthop Trauma Surg 2018 Nov 9. Epub 2018 Nov 9.

Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, 501-1194, Japan.

Fracture-dislocations of the fourth and fifth carpometacarpal (CMC) joints present a complex situation. Misdiagnosis and inadequate treatment may cause malunion and residual subluxation, which lead to painful arthritis and grip weakness. Open reduction along with internal fixation is the treatment of choice, but there is no consensus on an optimal treatment approach. Read More

Eklem Hastalik Cerrahisi 2018 Dec;29(3):165-9

Department of Orthopedics and Traumatology, Selçuk University Medical Faculty, 42130 Selçuklu, Konya, Turkey.

Objectives: This study aims to evaluate the distance between the median nerve and the hook of the hamate pre- and postoperatively in patients with carpal tunnel syndrome and to investigate the efficiency of magnetic resonance imaging in diagnosis and postoperative follow-up.

Patients And Methods: Median nerve decompression was performed by releasing the carpal tunnel in 15 patients (4 males, 11 females; mean age 51 years; range, 41 to 66 years) with carpal tunnel syndrome. The shortest distance between the median nerve and the hook of the hamate was measured with magnetic resonance imaging preoperatively and at three months after the operation and radial and ulnar translations were assessed. Read More

Orthop J Sports Med 2018 Oct 17;6(10):2325967118803090. Epub 2018 Oct 17.

Kerlan-Jobe Orthopaedic Clinic, Los Angeles, California, USA.

Background: Fractures of the hook of hamate in baseball players are significant injuries that can lead to pain and missed time from competition. The diagnosis is typically delayed because of the vagueness of symptoms and normal radiographic findings. Excision of the nonunited fragment has been supported as the primary treatment, but there are currently limited information and data on a timetable for return to competition after surgery. Read More

J Wrist Surg 2018 Nov 17;7(5):366-374. Epub 2018 Jun 17.

School of Medicine, Technion Israel Institute of Technology, Haifa, Israel.

 In joints, structure dictates function and consequently pathology. Interpreting wrist structure is complicated by the existence of multiple joints and variability in bone shapes and anatomical patterns in the wrist. Previous studies evaluated lunate and capitate shape in the midcarpal joint, and two distinct patterns have been identified. Read More

Clin Radiol 2018 Dec 9;73(12):1058.e11-1058.e19. Epub 2018 Oct 9.

Sichuan Key Laboratory of Medical Imaging and Department of Radiology, Affiliated Hospital of North Sichuan Medical College, Nanchong City 637000, Sichuan Province, China. Electronic address:

Aim: To assess the diagnostic value of the apparent diffusion coefficient (ADC) and fractional anisotropy (FA) of diffusion tensor imaging (DTI) at several anatomical locations in patients with carpal tunnel syndrome (CTS) to explore the optimal parameters and measurement location.

Materials And Methods: A search was conducted using the PubMed, EBSCO, Ovid, Web of Science, and Cochrane databases to identify articles relevant to this study published before September 2017. Studies were selected and included according to strict eligibility criteria. Read More

J Hand Surg Am 2018 Oct 1. Epub 2018 Oct 1.

University Hospitals Case Medical Center, Department of Orthopaedic Surgery, University Hospitals of Cleveland, Cleveland, OH; Yale Medicine Orthopaedics, New Haven, CT.

Purpose: The hook of the hamate is an anatomical structure that separates the ulnar border of the carpal tunnel from Guyon's canal and serves as a landmark for surgeons. The hook of the hamate is also subject to fracture from injury. We hypothesize that there are variations in the hook of the hamate in the general population. Read More

Plast Reconstr Surg Glob Open 2018 Jun 15;6(6):e1793. Epub 2018 Jun 15.

Department of Orthopaedic Surgery, MetroHealth Medical Center, Cleveland, Ohio.

Ray transposition for central digital amputation has been performed following traumatic injury to the hand for decades. Small finger to ring finger ray transposition has been well described in the literature, with good functional and aesthetic outcomes reported. Originally described by Bunnell, the fourth metacarpal can be disarticulated and the fifth metacarpal base transposed with reconstruction of the intermetacarpal ligament allowing progressive closure between the third and fifth rays. Read More

J Hand Surg Am 2018 Sep 18. Epub 2018 Sep 18.

Department of Orthopedic Surgery, Hospital for Special Surgery, New York.

Purpose: The purpose of this study was to identify associations between the clinical manifestations of carpal tunnel syndrome (CTS) and the sonographic measurements of the median nerve in the carpal tunnel. We hypothesized that sonographic changes in the median nerve from proximal to distal along the carpal tunnel would be associated with symptom severity scores.

Methods: We report on 38 patients with clinical signs and symptoms of CTS in a prospective investigation. Read More

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2018 Aug;32(8):984-988

Department of Hand Surgery, People's Hospital of Longhua, Shenzhen Guangdong, 518109, P.R.China.

Objective: To explore the effectiveness of maintaining the stability between the fourth and the fifth metacarple base during the treatment in the hamate-metacarpal joint injury.

Methods: Between September 2015 and June 2017, 13 cases of hamate-metacarpal joint injury were treated, including 12 males and 1 female, aged from 17 to 55 years (mean, 30.8 years). Read More

Radiol Case Rep 2018 Dec 13;13(6):1163-1165. Epub 2018 Sep 13.

Texas Children's Hospital, Department of Plastic Surgery and Orhtopedic Surgery, 6701 Fannin Street 8th Floor, Houston, TX 77030, USA.

Coalition of the carpal bones is a relatively uncommon anatomic anomaly. The majority of carpal coalitions occur between the lunate and triquetrum. There are rare reports of coalition involving the hamate and pisiform. Read More

Oper Orthop Traumatol 2018 Sep 14. Epub 2018 Sep 14.

Klinik für Handchirurgie, Salzburger Leite 1, 97616, Bad Neustadt a. d. Saale, Deutschland.

Objective: Restoration of proximal interphalangeal joint stability with preservation of mobility by reconstruction of the middle phalanx base using an osteochondral graft from the carpometacarpal joint surface of the hamate.

Indications: Acute and older isolated destruction of the palmar middle phalanx base >25%.

Contraindications: Destruction of the head of the proximal phalanx, advanced chondropathia of the head of the proximal phalanx, extensive soft tissue injury with loss of skin coverage at the proximal interphalangeal joint. Read More

Hand (N Y) 2018 Aug 20:1558944718793175. Epub 2018 Aug 20.

1 Mayo Clinic, Rochester, MN, USA.

Background: The purpose of this study is to determine the effects of proximal hamate transfer for proximal pole scaphoid reconstruction upon carpal kinematics.

Methods: Eight fresh-frozen cadaveric wrists underwent evaluation of their radiocarpal and midcarpal motion after proximal hamate osteotomy. A wrist simulator was used to apply cyclical tension to the flexor carpi ulnaris (FCU), flexor carpi radialis (FCR), extensor carpi ulnaris (ECU), and extensor carpi radialis longus and brevis stitched together (ECR). Read More

Hand (N Y) 2018 Aug 18:1558944718795307. Epub 2018 Aug 18.

4 Torrance Orthopaedic & Sports Medicine Group, CA, USA.

Background: Fractures of the hook of the hamate are rare. Nonoperative management has historically been immobilization in a short arm cast (SAC) without thumb immobilization with a high reported incidence of nonunion. The high prevalence of nonunion following nonoperative treatment may be secondary to motion at the fracture site. Read More

J Med Ultrasound 2018 Jan-Mar;26(1):14-23. Epub 2018 Mar 28.

Department of Physical Medicine and Rehabilitation, University of Santo Tomas Hospital, Manila, Philippines.

Background: Electrophysiologic studies have been considered the "gold standard" in diagnosing carpal tunnel syndrome (CTS); however, reports of false-negative results, as well as discomfort for the patient during the procedure has paved the use of ultrasound, being a painless and cost-efficient tool, as an alternative means for its diagnosis. Various ultrasound parameters assessing the median nerve and wrist dimensions have been described, but description of landmarks to assess these in a reliable manner has been lacking.

Methodology: A systematic search of different databases yielded data regarding ultrasound parameters for CTS diagnosis, the landmarks used, and presence of reliability testing. Read More

J Hand Surg Am 2018 Jul 14. Epub 2018 Jul 14.

Department of Integrative Anatomical Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA; Human and Evolutionary Biology Section, Department of Biological Sciences, University of Southern California, Los Angeles, CA.

Purpose: Hemi-hamate arthroplasty has been described as a viable treatment option for unstable proximal interphalangeal joint fracture-dislocations. The procedure uses a dorsal distal hamate osteochondral graft to recreate the injured volar middle phalanx (MP) proximal base. The purpose of this study was to evaluate the similarity in shape of these articular surfaces using quantitative 3-dimensional methods. Read More

J Hand Ther 2018 Jul 13. Epub 2018 Jul 13.

Center for Rehabilitation Research and Department of Rehabilitation Sciences, School of Health Professions, Texas Tech University Health Sciences Center, Lubbock, TX, USA. Electronic address:

Study Design: Descriptive in situ cadaveric study.

Introduction: Performing accurately directed examination and treatment to the wrist requires clinicians to orient to carpal bone structures.

Purpose Of The Study: To examine the anatomical relationships that exist within the wrist-hand complex and identify the accuracy of surface anatomy mapping strategies for localizing anatomical landmarks using a palmar approach. Read More

Acta Radiol 2018 Jan 1:284185118784977. Epub 2018 Jan 1.

1 Department of Radiology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.

Background Corticosteroid injections are a popular technique for carpal tunnel syndrome (CTS) treatment and are believed to provide rapid symptom relief. Purpose To use magnetic resonance diffusion tensor imaging (MR-DTI) to determine the association between diffusion values of the median nerve (MN) at several anatomic locations and symptom relief in patients with CTS following corticosteroid injection. Material and Methods MR-DTI was performed on 15 wrists of 12 patients with CTS before and two weeks after ultrasound-guided corticosteroid injections. Read More

J Hand Surg Am 2018 Jun 19. Epub 2018 Jun 19.

Department of Surgery, Western University, Roth-McFarlane Hand and Upper Limb Centre, St. Joseph's Health Care, London, Ontario, Canada. Electronic address:

Purpose: Fragmentation of the scaphoid proximal pole secondary to avascular necrosis presents a difficult reconstructive problem. This anthropometric study assesses the utility of the ipsilateral proximal hamate for complete osteochondral scaphoid proximal pole reconstruction.

Methods: Twenty-nine cadaveric specimens underwent computed tomography scanning and 3-dimensional reconstruction of the carpus and distal radius. Read More

Musculoskelet Surg 2018 May 29. Epub 2018 May 29.

Orthopaedic Department of Sparti General Hospital, 23100, Sparti Lakonia, Greece.

Hamate fractures are exceedingly rare clinical entities. However, the diagnosis and treatment of these injuries are often delayed and can severely handicap the performance of affected laborers or athletes. This review focuses on fractures of the hamate and provides an update on the current consensus as to mechanism, diagnosis, management, and complications after such injuries. Read More

J Hand Surg Eur Vol 2018 Sep 10;43(7):780-782. Epub 2018 May 10.

2 Department of Pediatric Surgery, CHU Félix Guyon, La Réunion, Saint Denis, France.

J Hand Surg Asian Pac Vol 2018 Jun;23(2):297-301

‡ Department of Plastic Surgery, Erasmus MC, Rotterdam, The Netherlands.

The hemi-hamate arthroplasty for proximal interphalangeal joint (PIPJ) dorsal fracture dislocations relies on complete dislocation of the joint using the 'shotgun' approach which provides excellent exposure but damages the delicate intrinsic joint stabilisers. We present a new approach to the PIPJ when performing the hemi-hamate arthroplasty. The volar surgical approach involves freeing up the whole tendon sheath-periosteal unit as a single layer, and retracting this to one side. Read More

Surg Radiol Anat 2018 Sep 30;40(9):1013-1017. Epub 2018 Apr 30.

Department of Orthopaedics, Juntendo University School of Medicine, Juntendo University, 2-1-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.

Purpose: The aim of this study was to measure the curvature radii of the finger flexor tendons on CT acquired using tendon conditions to examine whether the hamulus of the hamate functions as a pulley of the flexor tendon.

Methods: The subjects were 20 healthy volunteers (40 hands) (14 males and 6 females, mean age: 27.5 years old). Read More

Anesth Pain Med 2017 Oct 23;7(5):e14621. Epub 2017 Oct 23.

Physiotherapy Department, University of Social Welfare and Rehabilitation Sciences, Shahid Modarres Hospital, Tehran, Iran.

Background: This study was to evaluate the effect of hamate and scaphoid bone mobilization alongside splinting in women with carpal tunnel syndrome.

Methods: In this randomized clinical trial, 40 participants were randomly assigned into 2 groups. The intervention group received splinting with scaphoid and hamate mobilization, while the control group received splinting only. Read More

J Biomech 2018 May 12;73:210-216. Epub 2018 Apr 12.

Hand Research Laboratory, Department of Biomedical Engineering, Cleveland Clinic, Cleveland, OH 44195, United States; Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, OH 44195, United States; Department of Physical Medicine and Rehabilitation, Cleveland Clinic, Cleveland, OH 44195, United States. Electronic address:

Mechanics of carpal tunnel soft tissue, such as fat, muscle and transverse carpal ligament (TCL), around the median nerve may render the median nerve vulnerable to compression neuropathy. The purpose of this study was to understand the roles of carpal tunnel soft tissue mechanical properties and intratunnel pressure on the TCL tensile strain and carpal arch area (CAA) using finite element analysis (FEA). Manual segmentation of the thenar muscles, skin, fat, TCL, hamate bone, and trapezium bone in the transverse plane at distal carpal tunnel were obtained from B-mode ultrasound images of one cadaveric hand. Read More

J Hand Surg Eur Vol 2018 Sep 17;43(7):778-780. Epub 2018 Apr 17.

Department of Orthopedics, Urmia University of Medical Sciences, Imam Khomeini Hospital, Urmia, Iran.

Beijing Da Xue Xue Bao Yi Xue Ban 2018 Apr;50(2):245-248

Department of Human Anatomy & Histology and Embryology, Peking University School of Basic Medical Sciences, Beijing 100191, China.

Objective: To obtain three-dimensional intraosseous artery of the hamate and to provide the vascular anatomy basis of hamate fracture fixation.

Methods: PbO (lead monoxide, Sinopharm Chemical Reagent Beijing Co. Ltd) was ground into particles less than 40 μm and suspended in turpentine oil (Chemical Reagent Beijing Co. Read More

J Orthop Surg Res 2018 Apr 3;13(1):69. Epub 2018 Apr 3.

Ultrasonic Department, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, No. 32, West Section 2, Yihuan Road, Qingyang District, Chengdu, 610072, People's Republic of China.

Background: To compare the clinical effectiveness of ultrasound-guided needle release of the transverse carpal ligament (TCL) with and without corticosteroid injection in carpal tunnel syndrome (CTS).

Methods: From June 2016 to June 2017, 49 CTS patients (50 wrists) were included in this study. Twenty-five wrists were treated with ultrasound-guided needle release of the TCL plus corticosteroid injection (group A), and 25 wrists were treated with single ultrasound-guided needle release of the TCL (group B). Read More

J Hand Surg Eur Vol 2018 Jun 28;43(5):499-505. Epub 2018 Mar 28.

Bone and Joint Reconstruction Research Center, Iran University of Medical Sciences, Tehran, Iran.

This study assessed the outcome of open reduction and internal fixation of proximal interphalangeal joint fracture-dislocations through a shotgun approach, while keeping hemi-hamate arthroplasty as a back-up plan. After using the shotgun approach, fixation was carried out when the anterior fragment was large enough to accept two 1.5 mm screws. Read More

Handchir Mikrochir Plast Chir 2018 02 28;50(1):36-43. Epub 2018 Mar 28.

Rhönklinikum, Klinik für Handchirurgie.

Objective: The fractured base of the middle phalanx was reconstructed in 13 patients using an osteochondral transplant from the carpometacarpal joint surface of the hamate bone. The goal was to restore joint stability with preservation of mobility. Indications were acute and missed isolated destruction of the palmar middle phalanx base ≥ 30 %. Read More

Eur J Radiol 2018 Apr 9;101:59-64. Epub 2018 Feb 9.

Istanbul University, Cerrahpasa Medical Faculty, Department of Neurology, Turkey.

Purpose: The aim of the current study is to investigate the diagnostic role of shear-wave elastography and diffusion tensor imaging in patients with carpal tunnel syndrome.

Material And Methods: The study included a total of 77 wrists; 18 normal, 35 wrists with mild, 9 wrists with moderate and 15 wrists with severe carpal tunnel syndrome. Elastography of the median nerve was performed by defining the boundaries of a segment of the nerve at sagittal plane at the level of proximal carpal row. Read More

Clin Sports Med 2018 Apr;37(2):217-243

Department of Orthopedic Surgery, Mayo Clinic, 200 1st Street SW, Rochester, MN 55905, USA. Electronic address:

Injuries to the hands and wrist are common in athletes. Injuries include acute fractures, dislocations, ligamentous, and tendon injuries, as well as more chronic injuries such as sprains and strains. Complications in the treatment of sports injuries of the hand and wrist may be divided into 2 categories: incorrect or delayed diagnosis and iatrogenic injury related to treatment. Read More

Acta Orthop Traumatol Turc 2018 May 3;52(3):211-215. Epub 2018 Mar 3.

Katip Celebi University, Ataturk Training and Research Hospital, Department of Orthopaedics and Traumatology, Izmir, Turkey.

Objective: The aim of this study was to report our results of lunate excision combined with capitohamate fusion in the treatment of Kienböck's stage IIIB/IIIC disease.

Methods: A total of 7 patients with a mean age 35.2 (SD 11. Read More

Ann Plast Surg 2018 May;80(5):529-532

Background: Although ulnar neuropathies are commonly encountered, isolated involvement of the motor branch is exceedingly rare. Previous reports of this entity describe compression as the deep motor branch passes through the piso-hamate hiatus and the adductor pollicis hiatus. This case series described 3 cases of motor branch compression due to unique etiologies which resolved after surgery. Read More

J Ultrasound Med 2018 Aug 16;37(8):2075-2081. Epub 2018 Feb 16.

Faculty of Medicine and Health Sciences, Macquarie University, Sydney, New South Wales, Australia.

Ultrasound (US)-guided microinvasive procedures are defined as those performed via needles without notable scarring. Ten cadaver hands underwent US-guided microinvasive carpal tunnel release using a novel needle-based tool, the micro i-Blade (Summit Medical Products, Inc, Sandy, UT). A US-imaged landmark, the inflexion point of the ligaments distal to the hook of the hamate, was used to position the distal extent of the cut. Read More

J Hum Evol 2018 Jan 31;114:45-75. Epub 2017 Oct 31.

Área de Prehistoria Departamento de Historia, Universidad de Oviedo, Oviedo, Spain.

Twenty-nine carpal bones of Homo neanderthalensis have been recovered from the site of El Sidrón (Asturias, Spain) during excavations between 1994 and 2009, alongside ∼2500 other Neandertal skeletal elements dated to ∼49,000 years ago. All bones of the wrist are represented, including adult scaphoids (n = 6), lunates (n = 2), triquetra (n = 4), pisiforms (n = 2), trapezia (n = 2), trapezoids (n = 5), capitates (n = 5), and hamates (n = 2), as well as one fragmentary and possibly juvenile scaphoid. Several of these carpals appear to belong to the complete right wrist of a single individual. Read More

Eur Radiol 2018 Jun 30;28(6):2299-2307. Epub 2018 Jan 30.

Department of Radiology, Hallym University Dongtan Sacred Heart Hospital, 7 Keunjaebong-gil, Hwaseong, 18450, Gyeonggi-do, Republic of Korea.

Objectives: To determine if the capitohamate (CH) planimetry could be a reliable indicator of bone age, and to compare it with Greulich-Pyle (GP) method.

Methods: This retrospective study included 391 children (age, 1-180 months). Two reviewers manually measured the areas of the capitate and hamate on plain radiographs. Read More

Am J Phys Med Rehabil 2018 Jul;97(7):482-487

From the Department of Internal Medicine (TTS); Department of Physical Medicine & Rehabilitation (HSR); College of Medicine (NL); Department of Orthopedics (SK); and Departments of Physical Medicine & Rehabilitation, Radiology and Anatomy (JS), Mayo Clinic, Rochester, Minnesota.

Objective: During ultrasound-guided carpal tunnel release, osseous landmarks may supplement direct visualization of the distal transverse carpal ligament (dTCL) to ensure a complete release. The purpose of this study was to determine the relationship between the apex of the hook of the hamate (aHH) and the dTCL within the transverse safe zone (TSZ) of the carpal tunnel.

Design: Twenty unembalmed cadaveric specimens were dissected to determine the aHH-dTCL distance and the aHH-SPA distance (the distance between the aHH and the superficial palmar arch) at the ulnar and radial limits of the TSZ (the distance between the hook of the hamate or ulnar artery to the median nerve). Read More

JBJS Case Connect 2017 Apr-Jun;7(2):e31

Department of Orthopaedic Surgery and Rehabilitation, Loyola University Chicago, Maywood, Illinois.

Case: We describe the case of a 40-year-old man with Minnaar type-III congenital synostosis of the lunate and the triquetrum who presented with Lichtman stage-I Kienböck disease. Surgical treatment consisted of capitate shortening with a capitate-hamate fusion.

Conclusion: This case demonstrates the tenuous regional nature of the vascularity to the lunate, even in the setting of a complete lunotriquetral synostosis. Read More

J Hand Surg Eur Vol 2018 May 11;43(4):380-386. Epub 2017 Dec 11.

1 Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine, Osaka, Japan.

The purpose of this study was to investigate the differences in three-dimensional carpal kinematics between type 1 and 2 lunates. We studied 15 instances of wrist flexion to extension (nine type 1, six type 2), 13 of radial to ulnar deviation (seven type 1, six type 2), and 12 of dart-throwing motion (six each of type 1 and 2) in 25 normal participants based on imaging with computerized tomography. Mean proximal translation of the distal articular midpoint of the triquetrum relative to type 2 lunates during wrist radioulnar deviation was 2. Read More

Korean J Intern Med 2017 Nov 24. Epub 2017 Nov 24.

Division of Rheumatology, Department of Internal Medicine, Konkuk University Medical Center, Seoul, Korea.

Background/aims: Magnetic resonance imaging (MRI) is a sensitive and useful method for the detection of synovitis and joint destruction in rheumatoid arthritis (RA) patients. However, the patterns of MRI-detected bone erosion, bone marrow edema (BME), synovitis, and tenosynovitis have received insufficient attention. Therefore, this study evaluated the patterns of bone erosion, BME, synovitis, and tenosynovitis, and calculated the RA-MRI score (RAMRIS) of patients with RA at the carpal and metacarpophalangeal (MCP) joints using MRI. Read More

Skeletal Radiol 2018 Apr 16;47(4):505-510. Epub 2017 Nov 16.

Department of Radiology, Guy's and St Thomas' NHS Foundation Trust, Guy's Hospital, Great Maze Pond, London, SE1 9RT, UK.

Objective: The scaphoid is the most commonly fractured carpal bone. The presence of a concomitant hook of hamate fracture is of particular relevance given that it is often occult on routine wrist/scaphoid radiographs and that hook of hamate fractures are prone to symptomatic non-union, resulting in chronic ulnar wrist pain. Prompt diagnosis and immobilisation/fixation may minimise such complications. Read More

Ann Plast Surg 2018 Mar;80(3):238-241

We report the results of interposition tendon grafts using the ipsilateral palmaris longus tendon in 12 patients with closed flexor digitorum profundus tendon ruptures in zone III or IV of 14 digits between June 2006 and October 2015. Before surgery, 2 patients were diagnosed with closed tendon ruptures that occurred after nonunion of hamate hook fractures. The other 10 patients were diagnosed with spontaneous tendon ruptures of unknown cause. Read More

Bone Joint J 2017 Nov;99-B(11):1508-1514

Korea University College of Medicine, 73, Inchon-ro, Sungbuk-gu, Seoul 06334, South Korea.

Aims: Positive ulnar variance is an established risk factor for idiopathic ulnar impaction syndrome (UIS). However, not all patients with positive ulnar variance develop symptomatic UIS and other factors, including the morphology of the lunate, may be involved. The aim of this study was to clarify the relationship between lunate morphology and idiopathic UIS. Read More