Aims. The aims of this study were to describe the epidemiology of metacarpal shaft fractures (MSFs), assess variation in treatment and complications following standard care, document hospital resource use, and explore factors associated with treatment modality. Methods. A multicentre, cross-sectional retrospective study of MSFs at six centres in the UK. We collected and analyzed healthcare records, operative notes, and radiographs of adults presenting within ten days of a MSF affecting the second to fifth metacarpal between 1 August 2016 and 31 July 2017. Total emergency department (ED) attendances were used to estimate prevalence. Results. A total of 793 patients (75% male, 25% female) with 897 MSFs were included, comprising 0.1% of 837,212 ED attendances. The annual incidence of MSF was 40 per 100,000. The median age was 27 years (IQR 21 to 41); the highest incidence was in men aged 16 to 24 years. Transverse fractures were the most common. Over 80% of all fractures were treated non-surgically, with variation across centres. Overall, 12 types of non-surgical and six types of surgical treatment were used. Fracture pattern, complexity, displacement, and age determined choice of treatment. Patients who were treated surgically required more radiographs and longer radiological and outpatient follow-up, and were more likely to be referred for therapy. Complications occurred in 5% of patients (39/793). Most patients attended planned follow-up, with 20% (160/783) failing to attend at least one or more clinic appointments. Conclusion. MSFs are common hand injuries among young, working (economically active) men, but there is considerable heterogeneity in treatment, rehabilitation, and resource use. They are a burden on healthcare resources and society, thus further research is needed to optimize treatment. Cite this article: Bone Jt Open 2024;5(8):652–661

Aims. To determine whether an early return to sport in professional Australian Rules Football players after fixation of a non-thumb metacarpal fracture was safe and effective. Patients and Methods. A total of 16 patients with a mean age of 25 years (19 to 30) identified as having a non-thumb metacarpal fracture underwent open reduction and internal plate and screw fixation. We compared the players’ professional performance statistics before and after the injury to determine whether there was any deterioration in their post-operative performance. Results. Of the 16, 12 sustained their fracture during the season: their mean time to return to unrestricted professional play was two weeks (1 to 5). All except two of the 48 player performance variables showed no reduction in performance post-operatively. Conclusion. Our data suggest that professional athletes who sustained a non-thumb metacarpal fracture can safely return to professional play without restriction two weeks after internal fixation. Cite this article: Bone Joint J 2017;99-B:1343–7

Aims. The aim of this study was to investigate whether clinical and radiological outcomes after intramedullary nailing of displaced fractures of the fifth metacarpal neck using a single thick Kirschner wire (K-wire) are noninferior to those of technically more demanding fixation with two thinner dual wires. Patients and Methods. This was a multicentre, parallel group, randomized controlled noninferiority trial conducted at 12 tertiary trauma centres in Germany. A total of 290 patients with acute displaced fractures of the fifth metacarpal neck were randomized to either intramedullary single-wire (n = 146) or dual-wire fixation (n = 144). The primary outcome was the Disabilities of the Arm, Shoulder and Hand (DASH) questionnaire six months after surgery, with a third of the minimal clinically important difference (MCID) used as the noninferiority threshold. Secondary outcomes were pain, health-related quality of life (EuroQol five-dimensional questionnaire (EQ-5D)), radiological measures, functional deficits, and complications. Results. Overall, 151/290 of patients (52%) completed the six months of follow-up, leaving 83 patients in the single-wire group and 68 patients in the dual-wire group. In the modified intention-to-treat analysis set, mean DASH scores six months after surgery were 3.8 (. sd. 7.0) and 4.4 (. sd. 9.4), respectively. With multiple imputation (n = 288), mean DASH scores were estimated at 6.3 (. sd. 8.7) and 7.0 (. sd. 10.0). Upper (1 - 2α)) confidence limits consistently remained below the noninferiority margin of 3.0 points in the DASH instrument. While there was a statistically nonsignificant trend towards a higher rate of shortening and rotational malalignment in the single wire group, no statistically significant differences were observed across groups in any secondary outcome measure. Conclusion. A single thick K-wire is sufficient for intramedullary fixation of acute displaced subcapital fractures of the fifth metacarpal neck. The less technically demanding single-wire technique produces noninferior clinical and radiological outcomes compared with the dual-wire approach. Cite this article: Bone Joint J 2019;101-B:1263–1271

Objectives. The exact aetiology and pathogenesis of microdamage-induced long bone fractures remain unknown. These fractures are likely to be the result of inadequate bone remodelling in response to damage. This study aims to identify an association of osteocyte apoptosis, the presence of osteocytic osteolysis, and any alterations in sclerostin expression with a fracture of the third metacarpal (Mc-III) bone of Thoroughbred racehorses. Methods. A total of 30 Mc-III bones were obtained; ten bones were fractured during racing, ten were from the contralateral limb, and ten were from control horses. Each Mc-III bone was divided into a fracture site, condyle, condylar groove, and sagittal ridge. Microcracks and diffuse microdamage were quantified. Apoptotic osteocytes were measured using TUNEL staining. Cathepsin K, matrix metalloproteinase-13 (MMP-13), HtrA1, and sclerostin expression were analyzed. Results. In the fracture group, microdamage was elevated 38.9% (. sd 2.6. ) compared with controls. There was no difference in the osteocyte number and the percentage of apoptotic cells between contralateral limb and unraced control; however, there were significantly fewer apoptotic cells in fractured samples (p < 0.02). Immunohistochemistry showed that in deep zones of the fractured samples, sclerostin expression was significantly higher (p < 0.03) than the total number of osteocytes. No increase in cathepsin K, MMP-13, or HtrA1 was present. Conclusion. There is increased microdamage in Mc-III bones that have fractured during racing. In this study, this is not associated with osteocyte apoptosis or osteocytic osteolysis. The finding of increased sclerostin in the region of the fracture suggests that this protein may be playing a key role in the regulation of bone microdamage during stress adaptation. Cite this article: N. Hopper, E. Singer, F. Henson. Increased sclerostin associated with stress fracture of the third metacarpal bone in the Thoroughbred racehorse. Bone Joint Res 2018;7:94–102. DOI: 10.1302/2046-3758.71.BJR-2016-0202.R4

In nine patients of median age 34 years who had sustained an amputation of the thumb at a median 24 (5 to 131) months previously, we lengthened the first metacarpal by 30 (17 to 36) mm. Seven amputations had been through the proximal phalanx and two through the metacarpal. The first two patients had autogenous grafting at a second stage, but the other seven had callotasis alone. In these patients the external fixators were removed at a median 189 (115 to 271) days after osteotomy. In six cases the adductor pollicis tendon was transferred proximally and the first web deepened. There was late fracture or palmar flexion of the callus in five patients, but this required further surgery in only one. Treatment was complete at 326 (140 to 489) days after osteotomy. The extended thumb retained its sensitivity; both grasp and key-pinch strength were satisfactory and only one patient felt that the result did not warrant the long course of treatment. Metacarpal lengthening by this method is a prolonged procedure, but provides a valuable alternative to more complex reconstructions

We report a long-term follow-up of abduction-extension osteotomy of the first metacarpal, performed for painful trapeziometacarpal osteoarthritis. Of a consecutive series of 50 operations, 41 thumbs (82%) were reviewed at a mean follow-up of 6.8 years. Good or excellent pain relief was achieved in 80%, and 93% considered that surgery had improved hand function, while 82% had normal grip and pinch strength, with restoration of thumb abduction. Metacarpal osteotomy was equally successful in relieving symptoms of those with early (grade 2) and moderate (grade 3) degenerative changes. This simple procedure provides lasting pain relief, corrects adduction contracture and restores grip and pinch strength, giving good results with few complications

From 1987 to 1993 we treated 33 patients with 29 phalangeal and seven metacarpal fractures by external fixation using a mini-Hoffmann device. There were 27 open and 25 comminuted fractures. In 12 patients one or more tendons was involved. The mean follow-up was 4.4 years. Complications occurred in ten fractures; two required repositioning of the fixator. All the fractures healed. The functional results after metacarpal fractures were better than those after phalangeal fractures and fractures of the middle phalanx had better recovery than those of the proximal phalanx. Twenty-eight of the 33 patients were satisfied with their result. External fixation proved to be a suitable technique for stabilising unstable, open fractures with severe soft-tissue injuries

1. Rotational deformity of a finger caused by malunion of a phalangeal fracture has been corrected by metacarpal osteotomy. 2. Because of the anatomical arrangement of the metacarpo-phalangeal joint this method gives good control of the distal phalanges. 3. Division through the metacarpal rather than through the phalanx avoids adhesions in the flexor and extensor mechanisms and in the joints of the fingers, allows early mobilisation and is an easier procedure

1. A case of actinomycosis of the metacarpal bone of the right little finger from a punch injury is described. 2. The infection lasted five months and responded to prolonged courses of antibiotics and iodine preparations and drainage of recurrent abscesses

1. Three patients with enchondromata of the metacarpal bones are described. 2. The nature of the enchondromata in all three patients was confirmed by histological examination. 3. Treatment was by radical excision and bridging of the gap by a cortical bone graft. 4. There has been no impairment of function in the hands. No patient complained of pain after the operation. 5. Radiographs taken one year after operation in two patients showed that the flat bone grafts had become cylindrical and that medullary canals had appeared

A bilateral congenital abnormality of the trapezium and first metacarpal is described. The condition may be related to abnormal ossification of the trapezium in accordance with Pfitzner's plan. It is quite distinct from osteoarthritis of the trapezio-metacarpal joints

1. A large proportion of fractures were poorly reduced in this series either because the method used was inadequate or because it was inexpertly applied. At first it was thought that immobilisation in plaster gave adequate fixation but it was impossible to be certain that the reduction was not sometimes lost in the interval between manipulation and the check radiograph taken immediately after plaster had been applied. This suggested that in some cases fixation might be lost early although late redisplacement was not seen. 2. The late subjective results in patients with unreduced fractures were good, but there was some loss of thumb mobility partly due to varus deformity of the metacarpal bone and partly due to incomplete compensation for generalised stiffness in and around the joint. 3. Since loss of movement caused little disability and joint involvement rarely produced symptoms due to osteoarthritis, it seems doubtful whether the use of complex methods of treatment is justifiable. 4. Women seem to be predisposed to painful symptoms at the carpo-metacarpal joint of the thumb whether they occur after fracture or in association with non-traumatic osteoarthritis of the joint

External fixation of the first metacarpal was used in Rolando's fracture to counter the forces that cause shortening and articular incongruity. Satisfactory reduction was achieved and maintained in five patients

A vascularised bone-graft procedure from the base of the second metacarpal was performed in 14 patients with nonunion of the scaphoid. There were 11 men and three women with a mean age of 22 years. In eight patients, who had dorsiflexed intercalated segment instability (DISI), an open wedge was formed at the site of nonunion, and the vascular pedicle was grafted from the volar side. In the six patients without DISI, transplantation was carried out through the same dorsal skin incision. Complete bony union was obtained in all patients after a mean post-operative period of 10.2 weeks, and DISI was corrected in all affected patients. According to Cooney’s clinical scoring system, the results were excellent in five, good in six, and fair in three patients. Because of its technical simplicity and the limited dissection needed, the procedure should be considered for the primary surgical treatment of patients with nonunion of the scaphoid

1. Shin splints in five horses is described as a stress fracture of the second metacarpal bone. 2. The value of this finding in relation to stress fracture of the tibia in man is discussed

1. The treatment of Bennett's fracture is reviewed and the relative merits of conservative and operative treatment is considered.

2. A closed method of treatment is described and a series of thirty-one patients so treated is analysed. There were twenty-nine successful results.

3. It is urged that conservative treatment is the method of choice, and that operative measures should be reserved for the occasion when closed methods have failed.

The April 2023 Wrist & Hand Roundup. 360. looks at: MRI-based classification for acute scaphoid injuries: the OxSMART; Deep learning for detection of scaphoid fractures?; Ulnar shortening osteotomy in adolescents; Cost-utility analysis of thumb carpometacarpal resection arthroplasty; Arthritis of the wrist following scaphoid fracture nonunion; Extensor hood injuries in elite boxers; Risk factors for reoperation after flexor tendon repair; Nonoperative versus operative treatment for displaced finger metacarpal shaft fractures

The December 2024 Wrist & Hand Roundup. 360. looks at: Variability in thumb ulnar collateral ligament rupture management across the UK: survey insights; Identifying five distinct hand osteoarthritis pain phenotypes highlights the impact of biopsychosocial factors; Long-term outcomes of MAÏA TMC joint prosthesis for osteoarthritis: a possible alternative to trapeziectomy; Diagnostic and management strategies for malignant melanoma of the hand; Early versus delayed surgery for distal radius fractures: comparable outcomes but higher complications in delayed treatment; Perioperative anticoagulant and antiplatelet use does not increase complications in wide-awake hand surgery; Variability in treatment of metacarpal shaft fractures highlights need for standardized care; Low-intensity pulsed ultrasound ineffective in reducing time to union for scaphoid nonunion post-surgery