Search Our Scientific Publications & Authors

J Foot Ankle Surg 2019 Feb 8. Epub 2019 Feb 8.

Professor, Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Gifu, Japan.

Bony mallet injury of the hallux is uncommon. In the few reports of this injury, authors have described surgical treatments such as closed reduction with percutaneous pinning and open surgical fixation with Kirschner wires or a suture anchor. However, the appropriate surgical management for this injury remains controversial. Read More

Clin J Sport Med 2019 Feb 4. Epub 2019 Feb 4.

Department of Physical Medicine and Rehabilitation, Mayo Clinic, Jacksonville, Florida.

Objective: Review the use of upper-extremity orthoses and casts after injuries to the wrist and hand in the pediatric, adolescent, and young adult population. The common injuries reviewed include pediatric distal radius fractures, scaphoid fractures, metacarpal fractures, mallet fingers, volar plate injuries of the proximal interphalangeal (PIP) joint, and ulnar collateral ligament (UCL) tears of the thumb metacarpophalangeal (MCP) joint.

Data Sources: We conducted a literature review from 1985 to 2016 of upper-extremity orthotic interventions. Read More

Indian J Orthop 2018 Nov-Dec;52(6):611-615

Orthopaedic Surgery Department, Section of Hand Surgery, Changhua Christian Hospital, Changhua, Taiwan, ROC.

Background: A variety of surgical techniques for treating mallet fracture finger has been reported with different outcomes and complications. However, the optimal procedure remains controversial. This study describes surgical outcomes of mallet fractures of the finger with distal phalanx treated by modified pull-out wire fixation with Kirschner wire (K-wire) stabilization of the DIP joint in hyperextension. Read More

J Hand Surg Am 2018 Nov 5. Epub 2018 Nov 5.

Department of Orthopaedic Surgery, Seoul National University Hospital, Seoul, Korea.

Purpose: We suggest a method to achieve anatomical reduction in mallet finger fractures that are insufficiently treated by the 2-extension block wire technique.

Methods: We performed a retrospective review of 18 patients who were found to have an irreducible dorsal fragment and distal interphalangeal joint incongruence owing to rotation of the dorsal fragment in the sagittal plane. In these cases, we additionally employed a dorsal counterforce technique to supplement the 2-extension block technique. Read More

Emerg Med J 2018 Nov;35(11):679-680

Department of Emergency Medicine, University Hospital Waterford, Waterford, Ireland.

An 11-year-old girl presented with pain and deformity in her right little finger distal interphalangeal joint (DIPJ). She was active in several sports including hurling and had a history of dyspraxia with frequent minor soft tissue injuries which had not required hospital assessment. Her mother was concerned about the possibility of a recent injury. Read More

J Pediatr Orthop 2019 Mar;39(3):e232-e235

Shriners Hospital for Children, Philadelphia, PA.

Background: Loss of midline function impairs the child's ability to perform certain activities of daily living such as dressing, buttoning, and perineal care. The purpose of this study was to assess brachial plexus birth palsy (BPBP) patients with loss of midline function with respect to etiology and treatment.

Methods: A retrospective review of all BPBP patients with loss of midline function was performed. Read More

Arch Plast Surg 2018 Jul 15;45(4):351-356. Epub 2018 Jul 15.

Department of Plastic & Reconstructive Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea.

Background: Mallet fracture can easily occur during sports activities or in daily life; however, the principles and methods of treatment for such fractures remain debated. Among the surgical treatments, various methods of closed reduction have been proposed. We treated patients with the extension block method (EBM) and the direct pinning method (DPM), and then compared the results. Read More

Eur J Med Res 2018 Jul 20;23(1):35. Epub 2018 Jul 20.

Interdisciplinary Hand Department IHZ, Department of Trauma Surgery, Klinikum rechts der Isar, Technical University Munich, Munich, Germany.

Background: Bony avulsion fractures of the distal phalanges can result in mallet finger deformity if not treated appropriately. Therefore, only minimally displaced fractures can be treated conservatively with a good outcome, as dislocation occurs very often. Several surgical treatment options have been developed during the past decades. Read More

Am J Phys Med Rehabil 2019 Feb;98(2):e10-e12

From the Department of Rehabilitation (DC, MZ, CF), and Orthopaedics and Traumatology Unit (MB), Foligno Hospital, Foligno, Italy; and Department of Physical and Rehabilitation Medicine, Hacettepe University Medical School, Ankara, Turkey (LÖ).

Managing top-level athlete's recovery after an injury is very complicated because it requires a challenging combination of clinical and social/professional aspects with the need to return as soon as possible to sports play. Herein, we report a top-level volleyball player for whom a finger splint combined with a custom made thermoplastic protection was used for the conservative management of a Mallet fracture reinjury. This way our player continued training and competitions in contrast to conventional rehabilitation protocols, which suggest to avoid new traumas until the healing phase is completed. Read More

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2017 Nov;31(11):1287-1290

Department of Orthopedics, the 454th Hospital of Chinese PLA, Nanjing Jiangsu, 210001,

Objective: To evaluate the short-term effectiveness of Kirschner wire (K-wire) elastic fixation in the treatment of Doyle type Ⅰ and Ⅱ mallet finger.

Methods: Between July 2016 and March 2017, 18 patients with Doyle type Ⅰ and Ⅱ mallet finger were treated. There were 12 males and 6 males, with an average age of 45 years (range, 16-61 years). Read More

Hand Surg Rehabil 2018 Jun 6. Epub 2018 Jun 6.

Department of orthopedics and traumatology, Okmeydani Training and Research Hospital, 34365 Şişli, Istanbul, Turkey.

Mallet fracture is an avulsion of the extensor tendon and fracture of the dorsal rim of the articular surface of distal phalanx at the same time. If a part of the mallet fracture is angled or rotated to such a degree that prevents full anatomic reduction, malunion and deformities may occur as a result. The objective of this study was to describe a new surgical technique to provide derotation of the mallet fracture. Read More

Injury 2018 Jun 7;49(6):1008-1023. Epub 2018 Apr 7.

Faculty of Nursing and Midwifery (Sydney Nursing School), The University of Sydney, Mallet St., Camperdown, NSW, Australia; The George Institute for Global Health, Bridge Street, Sydney, NSW, Australia; Emergency Services, Illawarra Shoalhaven Local Health District, Wollongong Hospital, Crown St., Wollongong, NSW, Australia. Electronic address:

Background: Blunt chest injuries (BCI) are associated with high rates of morbidity and mortality. There are many interventions for BCI which may be able to be combined as a care bundle for improved and more consistent outcomes.

Objective: To review and integrate the BCI management interventions to inform the development of a BCI care bundle. Read More

J Plast Reconstr Aesthet Surg 2018 Jun 14;71(6):876-882. Epub 2018 Feb 14.

Department of Hand Surgery, Tokyo Hand Surgery & Sports Medicine Institute, Takatsuki Orthopaedic Hospital, Tokyo, Japan.

Background: Extension block pinning is a simple and reliable technique for mallet fractures, but poor results are sometimes obtained. The predictors of postoperative range of motion after extension block pinning of mallet fingers were investigated.

Methods: The outcomes for postoperative active motion of the distal interphalangeal (DIP) joint, such as flexion angle, extension loss, and total range of motion, were examined. Read More

Orthopedics 2018 Mar 2;41(2):e299-e302. Epub 2018 Mar 2.

Pins exposed out of the skin after surgery for mallet fractures keep patients from washing their hands. The authors buried the tips of all pins under the skin while performing extension block pinning for 14 patients with mallet fractures. The patients were allowed to wash their hands 4 to 5 days postoperatively, without any dressing or splinting. Read More

HSS J 2018 Feb 25;14(1):83-87. Epub 2017 May 25.

Division of Pediatric Orthopaedic Surgery, Rainbow Babies and Children's Hospital, Case Western Reserve University, 11100 Euclid Avenue, RBC 6081, Cleveland, OH 44106 USA.

Background: Many surgeons advocate for surgical intervention of adult mallet fractures that involve either subluxation of the distal interphalangeal (DIP) joint or those that involve more than one-third of the articular surface. However, the efficacy of operative treatment and complication rates are unclear regarding the adolescent population.

Questions/purposes: The goal of this study is to evaluate the clinical outcomes following operative fixation of bony mallet fractures in the adolescent population. Read More

Rev Bras Ortop 2018 Jan-Feb;53(1):2-9. Epub 2017 Dec 12.

Departamento de Ortopedia e Traumatologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil.

Objective: To measure the reliability of Albertoni's classification for mallet finger.

Methods: Agreement study. Forty-three radiographs of patients with mallet finger were assessed by 19 responders (12 hand surgeons and seven residents). Read More

J Hand Surg Am 2018 02 22;43(2):146-163.e2. Epub 2017 Nov 22.

The Ohio State University College of Medicine, Columbus, OH; Department of Orthopedic Surgery, Nationwide Children's Hospital, Columbus, OH. Electronic address:

Purpose: The current literature describes multiple surgical and nonsurgical techniques for the management of mallet finger injuries, and there is no consensus on the indications for surgical treatment. The objective of this study was to determine, through a literature review, if any conclusions can be drawn concerning the indications for surgery in mallet finger injuries; the treatment outcomes of surgical versus nonsurgical management; the most effective methods of surgical and nonsurgical treatment; and the most common treatment complications of mallet finger injuries.

Methods: A systematic review of multiple databases was performed. Read More

J Hand Surg Asian Pac Vol 2017 Dec;22(4):416-422

1 Department of Hand Surgery, Singapore General Hospital, Singapore.

Background: Hook plate fixation of closed mallet fractures was first described in 2007, but there has subsequently been a lack of studies examining the outcomes and complications of this technique.

Methods: This paper aims to assess the clinical outcomes of hook plate fixation of closed mallet fractures by retrospectively reviewing 31 closed, bony mallet injuries that were surgically fixed with a hook plate between 2002-2011.

Results: Patients who underwent hook plate fixation had a median time to radiographic union of 83 days. Read More

Orthop Traumatol Surg Res 2018 Feb 9;104(1):127-132. Epub 2017 Oct 9.

Department of Orthopedic Surgery, Eulji University College of Medicine, 1306, Dunsan-dong, Seo-gu, 35233 Daejeon, Republic of Korea.

Introduction: Extension-block pinning represents a simple and reliable surgical technique. Although this procedure is commonly performed successfully, some patients develop postoperative extension loss. To date, the relationship between extension-block Kirschner wire (K-wire) insertion angle and postoperative extension loss in mallet finger fracture remains unclear. Read More

J Hand Ther 2018 Oct - Dec;31(4):429-436. Epub 2017 Sep 28.

Istanbul Faculty of Medicine, Department of Orthopedics and Traumatology, Istanbul University, İstanbul, Turkey.

Study Design: Prospective randomized controlled trial.

Purpose Of The Study: This study was designed to compare our new suture anchor technique with conservative management in acute Wehbe-Schneider type I A-B and II A-B mallet fingers.

Methods: Twenty nine patients who presented to our clinic between 2013 and 2015 were randomized for surgical or conservative treatment. Read More

Sci Rep 2017 Sep 8;7(1):11049. Epub 2017 Sep 8.

Shandong University, Shandong Medical Imaging Research Institute, Shandong, China.

To evaluate the role of high frequency ultrasonography in diagnosis of acute closed mallet finger injury. 36 patients diagnosed with mallet finger were included in this study. All patients underwent ultrasonography, magnetic resonance imaging(MRI) and X-ray examinations. Read More

Hand (N Y) 2018 01 8;13(1):80-85. Epub 2017 Mar 8.

1 Saiseikai Kawaguchi General Hospital, Japan.

Background: We compared the treatment results for displaced mallet finger fractures in children between low-intensity pulsed ultrasound (LIPUS) stimulation and Ishiguro's method, which involves extension block and arthrodesis of the distal interphalangeal (DIP) joint with pinning.

Methods: Eleven cases (5 females and 6 males; average age, 13.5 years) of mallet finger were operated with Ishiguro's method, and 8 cases (3 females and 5 males; average age, 13. Read More

Hand Clin 2017 08;33(3):561-569

Plastic Surgery and Hand Surgery Division, University Hospital Zurich, Zurich, Switzerland.

Common hand problems are treated differently in different countries. This article attempts to bring together the views of surgeons from different countries on some of the most common hand problems that hand surgeons encounter in daily practice. In practice, the correct treatment of these problems may be the most important and influential to patients. Read More

Hand Clin 2017 08;33(3):473-487

The Hand to Elbow Clinic, 29a James Street West, Bath BA1 2BT, UK. Electronic address:

Hand fractures (excluding small avulsion fractures and scaphoid fractures) almost always unite with bone. The role of the hand surgeon is not to achieve bone union but to achieve stability in an adequate position, often with some displacement, and maintenance of good soft tissue gliding. This article establishes that many fractures treated operatively do no better and often could not realistically do better than with good nonoperative treatment. Read More

Ann Plast Surg 2017 Sep;79(3):270-274

From the *Department of Plastic and Hand Surgery, Queen Elizabeth Hospital, Birmingham; and †Department of Orthopaedics, Royal South Hants Hospital, Southampton, United Kingdom.

Avulsion fractures can pose technical difficulties for surgical fixation. The fragments are often small and around finger joints with access being difficult due to attachment of ligaments or tendons. Traditionally, these have been treated using K wires, lag screws, or pullout sutures. Read More

J Hand Surg Am 2017 Jul 29;42(7):574.e1-574.e6. Epub 2017 Apr 29.

Section of Hand Surgery, Children's Mercy Hospitals and Clinics, Kansas City, MO. Electronic address:

Purpose: To determine whether the incidence of complications varies between among types of distal phalangeal fractures in a pediatric population.

Methods: We retrospectively reviewed the medical records and radiographs of patients seen in the pediatric hand surgery clinic from 2011 to 2012 with a diagnosis of distal phalanx fracture. Patients were identified by International Classification of Diseases-Ninth Revision code (816. Read More

Hand (N Y) 2017 05 30;12(3):223-228. Epub 2016 Mar 30.

2 Dartmouth-Hitchcock Medical Center, Lebanon, NH, USA.

Background: Mallet finger is a common injury of the extensor tendon insertion causing an extension lag of the distal interphalangeal joint.

Methods: We reviewed the most current literature on the epidemiology, diagnosis, and management of mallet finger injuries focusing on the indications and outcomes of surgical intervention.

Results: Nonoperative management has been advocated for almost all mallet finger injuries; however, complex injuries are usually treated surgically. Read More

Hand (N Y) 2017 05 6;12(3):277-282. Epub 2016 Oct 6.

1 Massachusetts General Hospital, Boston, MA, USA.

Background: The purpose of this study was to look for differences in mechanism, radiographic findings, and treatment between mallet fractures of the thumb and mallet fractures of the index through small fingers.

Methods: This retrospective study included 24 mallet fractures of the thumb and 392 mallet fractures of other digits. We compared demographics, injury factors (side, dominant hand, time between injury and first visit, and injury mechanism), subluxation, fragment size, treatment, and time from injury to final evaluation between the 2 groups. Read More

J Plast Surg Hand Surg 2018 Feb 18;52(1):1-6. Epub 2017 Apr 18.

d Department of Surgery , Central Finland Central Hospital , Jyväskylä , Finland.

Objective: The objectives of this survey were (1) to study if surgeons' perceptions of the benefit of six surgical procedures differ if they consider themselves as patients instead of treating a patient, (2) to evaluate the role of five predetermined factors that may influence decision-making, and (3) to assess how uniformly hand surgeons and hand therapists perceive the benefits of the surgical treatments.

Methods: The members of the national societies for Hand Surgery and Hand Therapy were asked to participate in the survey. Six patient cases with hand complaint (carpal tunnel syndrome, flexor tendon injury, dorsal wrist ganglion, thumb amputation, boxer's fracture, and mallet fracture) and a proposed operative procedure were presented, and the respondents rated the procedures in terms of the expected benefit. Read More

J Hand Surg Am 2017 May 6;42(5):387.e1-387.e7. Epub 2017 Mar 6.

Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea. Electronic address:

Purpose: We aimed to compare the clinical and radiographic results of patients with a mallet fracture involving more than one-third of the articular surface, but without a high degree of distal interphalangeal (DIP) joint subluxation, treated with extension block pinning or nonsurgical management.

Methods: Forty-nine patients with a mallet fracture involving more than one-third of the articular surface were reviewed. Twenty-six cases were treated using extension block pinning (surgery group) and 23 were treated nonsurgically (nonsurgical group). Read More

J Arthroplasty 2017 06 29;32(6):2017-2022. Epub 2016 Dec 29.

Division of Orthopaedic Surgery, Rothman Institute at Abington-Jefferson Health, Willow Grove, Pennsylvania.

Background: Curved broach handles were developed to overcome limited surgical exposures during total hip arthroplasty. Some authors report increased intraoperative fracture rates during limited exposures. This study evaluates mechanical force ratios transmitted to the bone while broaching with curved vs straight handles. Read More

Hand Surg Rehabil 2016 10 3;35(5):330-334. Epub 2016 Sep 3.

Hand Surgery Department, SOS main, CCOM, Strasbourg University Hospital, FMTS, Strasbourg University, Icube CNRS 7357, 10, avenue Baumann, 67400 Illkirch, France. Electronic address:

Unstable distal phalanx fractures are typically treated by pinning of the distal phalanx or the distal interphalangeal joint (DIP). Complications include unstable fixation, K-wire migration, septic arthritis and osteoarthritis. To limit these complications, we wanted to explore the benefits of using locked extra-articular DIP pinning. Read More

Case Rep Orthop 2016 27;2016:8086594. Epub 2016 Sep 27.

Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan.

Mallet fingers with an avulsion fracture of the distal phalanx or rupture of the terminal tendon of the extensor mechanism is known as a common injury, while mallet thumb is very rare. In this paper, the case of a 19-year-old woman with a sprained left thumb sustained while playing basketball is presented. Plain radiographs and computed tomography revealed an avulsion fracture involving more than half of the articular surface at the base of the distal phalanx. Read More

J Hand Surg Eur Vol 2017 Feb 3;42(2):176-181. Epub 2016 Oct 3.

1 Orthopedic Hand and Upper Extremity Service, Massachusetts General Hospital - Harvard Medical School, Boston, MA, USA.

Radiographs and medical record of all adult patients with a mallet fracture in three hospitals between 2004 and 2014 were reviewed. International Classification of Diseases, Ninth Revision (ICD-9) codes and text search in radiographic reports were used to identify all acute patients with potential mallet fractures in our institutional database. Manually checking, 392 true mallet fractures were identified among them, 78 had subluxation at the time of diagnosis and 19 had subluxation at a later time point during treatment. Read More

J Hand Surg Asian Pac Vol 2016 10;21(3):432-5

1 Department of Hand & Reconstructive Microsurgery, National University Health System, University Orthopaedics Hand & Reconstructive Microsurgery Cluster, Singapore.

We describe three steps to aid fracture assessment and fixation in the extensor block pin technique for mallet fractures. The first step is the use of fluoroscopy in the initial assessment to determine indication for fixation. Next is the use of supplementary extension block pin to control larger dorsal fragments. Read More

Injury 2016 Oct 17;47(10):2266-2268. Epub 2016 Aug 17.

Department of Plastic Surgery and Hand Surgery, Cork University Hospital, Cork, Ireland.

Tag rugby is one of the fastest growing sports in Ireland. It is a soft-contact team game that is loosely based on the rugby league format except players try to remove Velcro tags from their opponents' shorts rather than engage in a typical rugby tackle. The purpose of this study was to examine all tag rugby associated hand injuries over a five-year period in three large tertiary referral hospitals in Ireland. Read More

Clin Sports Med 2016 Oct 10;35(4):597-608. Epub 2016 Jun 10.

Division of Hand Surgery, Department of Orthopaedics, Alpert Medical School of Brown University, 2 Dudley Street, Suite 200, Providence, RI 02905, USA. Electronic address:

Wrist and hand injuries are common among athletes, and can lead to considerable disability. Dislocations and soft tissue injuries are common and require prompt recognition and treatment. Accurate diagnosis and early immobilization are often key to getting players back to their sport early. Read More

JBJS Rev 2016 05;4(5)

1UC Davis School of Medicine, 2101A Education Building, 4610 X Street, Sacramento, CA 958172Boston Children's Hospital, HUN 213, 300 Longwood Avenue, Boston, MA 02115.

Seymour fractures are open juxta-physeal fractures of the distal phalanx. A true lateral radiograph should be obtained for diagnosis, and treatment should include removal of the nail, irrigation and debridement of the fracture, and percutaneous Kirschner wire stabilization. Mallet fractures are more common in children than adults, and treatment is generally nonoperative for nondisplaced or minimally displaced fractures without volar subluxation of the distal phalanx; however, splinting compliance should be carefully assessed in younger populations. Read More

Rev Bras Ortop 2016 May-Jun;51(3):268-73. Epub 2016 Apr 26.

Hospital Ifor, São Bernardo do Campo, SP, Brazil.

Objectives: To evaluate the results from surgical treatment of patients with mallet finger injury using a hook plate and screw.

Methods: Twenty-five patients (19 males and six females) between the ages of 20 and 35 years were analyzed between May 2008 and December 2012. They were evaluated in accordance with Crawford's criteria and the mean follow-up was 18 months. Read More

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2016 Jun;30(6):705-708

Department of Orthopedics, the Second Hospital, Shanxi Medical University, Taiyuan Shanxi, 030001, P.R.China.

Objective: To investigate the effectiveness of modified Ishiguro technique with strengthening pressure in the treatment of bony mallet finger by comparing with the traditional Ishiguro technique.

Methods: Between May 2013 and May 2015, 31 cases of bony mallet finger were treated with traditional Ishiguro technique in 16 cases (control group) and with modified Ishiguro technique in 15 cases (improved group, the two Kirschner wires were bound, which were used to fix the distal interphalangeal joint and blocking avulsion fracture block in the classical Ishiguro technique, and play a continuous elastic compression). Difference was not significant in gender, age, cause of injury, injury finger, and the time from injury to operation between 2 groups ( > 0. Read More

Orthopedics 2016 Sep 1;39(5):295-8. Epub 2016 Jun 1.

This study describes a new technique called the "fish hook" technique for the treatment of bony mallet finger. This technique catches the dorsal fragment with a bent K-wire shaped like a fish hook. Transarticular fixation is performed with another K-wire. Read More

J Hand Surg Eur Vol 2016 Sep 22;41(7):696-700. Epub 2016 May 22.

Royal United Hospital, Bath, UK

Unlabelled: Bony mallet injuries with a large dorsal fracture fragment may sublux giving a poor outcome. The hypothesis that was tested was that subluxation could be predicted by extension stress lateral radiographs. It was anticipated that the main distal fracture fragment would glide and be stable or pivot and be unstable. Read More

Radiology 2016 Jun;279(3):674-92

From the Department of Radiology and Musculoskeletal Imaging, CHRU Lille Centre de Consultations et d'Imagerie de l'Appareil Locomoteur, Rue du Professeur Emile Laine, 59037 Lille, France.

Hand and wrist injuries are common occurrences in amateur and professional sports and many of them are sport-specific. These can be divided into two categories: traumatic injuries and overuse injuries. The aim of this article is to review the most common hand and wrist sports-related lesions. Read More

J Hand Surg Eur Vol 2016 Sep 10;41(7):701-6. Epub 2016 May 10.

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

The aim of this study was to compare the clinical and radiological outcomes of one or two dorsal pins for extension blocking of mallet fractures. We treated 36 mallet fractures with the extension block technique. A single pin was used in 19 fractures (Group 1) and two pins in 17 fractures (Group 2). Read More

J Plast Reconstr Aesthet Surg 2016 Jun 16;69(6):835-842. Epub 2016 Mar 16.

Department of Orthopedic Surgery, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba City, 260-8677, Japan.

Objective: This retrospective study reports 10 patients with closed mallet thumb injury treated with surgery and compares the clinical outcomes achieved with those of previously described patients who were treated with either conservative therapy or surgery.

Methods: We report the outcomes of a series of 10 patients who received surgical treatment at our institutions. Due to the rarity of closed mallet thumb, a systematic review was conducted, and the results of a literature search were compared with our case series to strengthen our conclusions. Read More

Arch Plast Surg 2016 Mar 18;43(2):134-44. Epub 2016 Mar 18.

Department of Hand Surgery, SOS main, CCOM, University Hospital of Strasbourg, FMTS, University of Strasbourg, Illkirch, France.

In adults, mallet finger is a traumatic zone I lesion of the extensor tendon with either tendon rupture or bony avulsion at the base of the distal phalanx. High-energy mechanisms of injury generally occur in young men, whereas lower energy mechanisms are observed in elderly women. The mechanism of injury is an axial load applied to a straight digit tip, which is then followed by passive extreme distal interphalangeal joint (DIPJ) hyperextension or hyperflexion. Read More

Dent Traumatol 2016 Oct 21;32(5):397-401. Epub 2016 Mar 21.

Department of Periodontology and Endodontology, Hokkaido University Graduate School of Dental Medicine, Sapporo, Japan.

Background/aim: The objectives of this study were to histopathologically evaluate cementum regeneration on root surfaces when an enamel matrix derivative (EMD) was used to bond a vertically fractured root and to evaluate the effectiveness of EMD in inhibiting root resorption.

Material And Methods: A total of 40 roots from 24 maxillary premolars in beagles were used. The root was vertically fractured using a chisel and mallet. Read More

Clin Orthop Relat Res 2016 Sep 3;474(9):1999-2005. Epub 2016 Mar 3.

Department of Surgery, Oulu University Hospital and University of Oulu, Oulu, Finland.

Background: Modern hip implants typically feature modular heads, which allow for easy exchange and removal from the femoral stem at the time of revision. However, owing to fretting, corrosion, or cold welding, the modular head may be difficult or impossible to separate from the underlying trunnion, especially if the implant has titanium interfaces between the head and the stem. We have repeatedly encountered difficulty removing the titanium sleeve adapter in the M(2)a-Magnum(TM) implant. Read More