Precise repair of small joint defect of hand with free second metatarsophalangeal joint tissue flap based on digital technology / 中华显微外科杂志

Objective:To explore the clinical effect of repairing interphalangeal joint defect of hand with free transfer of part of the 2nd metatarsophalangeal joint tissue flap precisely cut with the aid of digital 3D printing technology.Methods:From December 2016 to December 2020, 7 patients with partial joint defects of proximal interphalangeal joints of fingers were treated in Department of Hand and Foot Surgery, Shunde Hospital Affiliated to Guangzhou Medical University(Foshan Shunde Lecong Hospital). Before surgery, three-dimensional data of hand and foot bones were collected, and the 3D printing model was used to simulate the operation in vitro. During the operation, the first dorsal metatarsal artery-the 2nd dorsal metatarsal artery was used as the pedicle, and the 2nd metatarsophalangeal joint composite tissue flap with a required size was harvested with the assistance of the navigation template to tranfer and repair the small joint defects of hand. All 7 cases entered follow-up at outpatient and telephone. Results:All 7 cases survived. Postoperative follow-up was 3-24(mean 9.5) months, Range of motion of the repaired interphalangeal joint was (56 ± 6)°; According to the Evaluation Standard of Thumb and Finger Reconstruction Function of the Society of Hand Surgery of the Chinese Medical Association, 2 cases were excellent, 4 cases were good, and 1 case was poor.Conclusion:Transfer of the free 2nd metatarsophalangeal joint tissue flap assisted by 3D printing technology in repair of the small joint defect of the hand can accurately harvest the tissue flap, which is clinically reliable.

Modified transfer of proximal interphalangeal joint from the second toe for reconstruction of proximal interphalangeal joint of finger / 中华显微外科杂志

Objective:To evaluate the clinical effect of the modified transfer of the proximal interphalangeal joint (PIPJ) from the second toe in the treatment of a finger PIPJ defect.Methods:A total of 13 patients with finger PIPJ defects caused by traumatic injury were enrolled from May, 2017 to March, 2020. All the PIPJ defects had primary traumatic repairs. The causes of injury: 5 patients were caused by strangulation, 4 by chainsaw, 2 by strangulation and 2 by crushing. Of which, 7 patients had index finger injury, 3 middle fingers and 3 ring fingers. The operations were carried out 3-7 months after the first stage of treatment. The grafting of the PIPJ of the second toe with modified vascular anastomosis were performed. The ipsilateral second toe was taken in 10 patients, and the contralateral second toe in 3 patients. The grafted joints all carried observation skin islands, with an area of 1.0 cm×1.5 cm-1.0 cm×2.0 cm. All the secondary bone defects in the donor site of the toe were reconstructed with iliac bone grafts, and the length of the iliac bone strips was 4.0-6.0 cm. At the same time, the island flap on the fibular side of the great toe was removed and repaired at the donor site, with an area of 1.1 cm×1.6 cm - 1.1 cm×2.1 cm. Early postoperative rehabilitation was performed. The patients were followed-up through outpatient visits, telephone and WeChat interviews.Results:All the 13 finger PIPJ and donor site island flaps survived. Bone healing were observed in all patients with the healing time in 8-12(average 10) weeks. Three patients with severe adhesion of joint and tendon were treated with secondary release. All the patients were followed-up for 10 - 18 months without degeneration of PIPJ. Active range of motion of PIPJ ranged: 45°-90° in flexion and 0°-10° in extension, the average motion activity was 66.3°. Seven patients were in excellent, 4 in good and 2 in fair, according to the function assessment proposed by the Society of Hand Surgery of Chinese Medical Association. The appearance on donor site was good and the walking was normal in the longterm follow-up. Only one linear scar was left in the ilioinguinal donor site without obvious discomfort.Conclusion:It was possible to use the modified transfer of the PIPJ from the second toe in the treatment of a finger PIPJ defect. An iliac bone graft and an island flap of the first toe transfer can preserve the appearance and function of the toes.

Value of ultrasonography in diagnosis of closed volar plate injury of proximal interphalangeal joint / 中华超声影像学杂志

Objective:To evaluate the role of high frequency ultrasonography in diagnosis of closed volar plate injury of proximal interphalangeal joint.Methods:From May 2015 to may 2021, 41 patients with acute closed volar plate injury confirmed by Department of Hand and Foot Surgery of the Provincial Hospital Affiliated to Shandong First Medical University were examined by high frequency ultrasonography. The sonographic features were analyzed and classified.Results:High frequency ultrasonography could not only clearly show the thickness, shape and echo of volar plate, but also the degree of injury and avulsion fracture of volar plate, according to which the closed volar plate injury could be divided into three types: A, B and C. Type A(13 cases): Avulsion fracture of the middle phalangeal base was found with volar plate rupture, the sonogram showed that the continuity of the volar plate attachment of the middle phalangeal base was interrupted, and avulsion fracture was found at the distal end of the volar plate. Type B(11 cases): Complete rupture of the volar plate attachment of the middle phalangeal base was found without avulsion fracture, the sonogram showed that the continuity of the volar plate attachment of the middle phalangeal base was interrupted, and the end of the volar plate contracted and thickened. Type C(17 cases): Tear of the volar plate was found, the sonogram showed enlarging volar plates, heterogeneous internal echo, and liquid dark area was visible in some cases. The average thickness of the three types of closed volar plate injury of the proximal interphalangeal joint measured by ultrasound was (0.33±0.05)cm, and the average thickness of the volar plate at the same position of the corresponding finger on the opposite side was (0.22±0.03)cm. There was significant difference between the two groups ( t=7.864, P=0.006). Conclusions:High frequency ultrasonography is the preferred imaging examination method for the diagnosis of closed volar plate injury in proximal interphalangeal joint, which has an important guiding significance for the selection of clinical treatment.

A rare case of symphalangism of bilateral interphalangial joint of thumbs: a case report

Symphalangism is rare congenital disorder characterised by ankylosis of interphalangeal joints of hands and feet. The fusion can involve the proximal or the distal joints; however, involvement of the proximal interphalangeal joints is more common. There may other associated skeletol and non-skeletol abnormalities. Here the author reports a 14 year old girl with symphalangism involving the interphalangeal joints of the thumbs of bilateral hand. She did not have any functional impairment and hence no medical or surgical intervention was performed. As involvement of thumbs is very rare condition, author would like to report it.

Transferencia articular vascularizada: Reporte de caso / Free vascularized joint transfer: Case report

La articulación interfalángica proximal otorga la mayor contribución al arco total de movimiento digital, por lo tanto, la pérdida de movimiento normal de la articulación tiene un impacto considerable en la función y fuerza de agarre. El único método que asegura la preservación a largo plazo de la arquitectura cartilaginosa, así como una curación ósea rápida tras destrucción articular traumática o patológica es la transferencia articular vascularizada. Es definida como un trasplante articular parcial o completo con preservación o restauración inmediata del flujo de sangre. Se presenta el caso de un masculino de 20 años, con antecedente de trauma contuso-cortante en borde cubital de 3er dedo de mano izquierda zona II a quien se realiza cierre primario. Siete meses después a presentó deformidad articular e incapacidad funcional para la flexión de articulación interfalángica proximal. Se realizó procedimiento de reconstrucción articular, mediante transferencia articular vascularizada de 2° dedo del pie derecho. Posteriormente se dio seguimiento a través de consulta externa a las 2, 4, 6 y 8 semanas, 6 meses y 12 meses. A los 6 meses fue sometido a capsulotomía, liberación de placa volar, retiro de placas de osteosíntesis y adelgazamiento de isla cutánea. Se alcanzaron rangos de movimiento pasivo de extensión de 85° y activo de 70°. En base a la experiencia de nuestro centro se demuestra que el uso de transferencia articular en 2 etapas de reconstrucción, se pueden mantener rangos de movimiento tanto activo como pasivo suficiente para una adecuada función.

The proximal interphalangeal joint provides the greatest contribution to the total arc of digital movement, therefore, the loss of normal movement of the joint has a considerable impact on function and grip strength. The only method that ensures the long-term preservation of the cartilaginous architecture, as well as a rapid recovery of traumatic or pathological joint destruction, is vascularized joint transfer. It is defined as a partial or complete partial transplant with preservation or immediate restoration of blood flow. We present the case of a 20-year-old man, with a history of contusive-cutting trauma on the ulnar border of the third finger of the left hand, area II, who underwent primary closure. Seven months after the presentation of the joint and functional disability for proximal interphalangeal joint flexion. A joint reconstruction process was performed, by means of a vascularized joint transfer of the 2nd toe of the right foot. Subsequently, follow-up was carried out through the outpatient clinic at 2, 4, 6 and 8 weeks, 6 months and 12 months. At 6 months he was subjected capsulotomy, volar plate release, osteosynthesis plates removal and cutaneous island thinning. Ranges of passive movement of extension of 85° and active of 70° were reached. Based on the experience of our center, it is shown that the use of the transfer was made in 2 stages of reconstruction, the range of both active and passive movements can be maintained for an adequate function.

Collagenase Clostridium Histolyticum Injection for Dupuytren Contracture: 2-Year Follow-up

BACKGROUND: Dupuytren disease is characterized by the development of palmar fibrous tissue that can lead to fixed flexion contracture (FFC) and contribute to functional loss of the involved digits. Our goal was to investigate rates of contracture resolution and recurrence in patients who underwent enzymatic fasciotomy for Dupuytren contracture consisting of collagenase clostridium histolyticum (CCH) injection followed by passive manipulation combined with splinting and home-based therapy. METHODS: We prospectively enrolled 34 patients (44 metacarpophalangeal [MCP] and 33 proximal interphalangeal [PIP] joints) treated by one orthopaedic hand surgeon between November 2010 and November 2014. On day 1, CCH was injected into a palpable fibrous cord of the involved fingers. The next day, the finger was passively extended to its maximal corrective position. FFC was measured for each joint before injection and immediately after manipulation. Patients were instructed to wear an extension splint at night and perform stretching exercises at home and were re-evaluated at 6 weeks, 4 months, 1 year, and 2 years. Resolution was defined as improvement of contracture to ≤ 5° of neutral. Recurrence was defined as an increase in FCC of ≥ 20° after treatment. RESULTS: Immediate contracture resolution occurred in 42 of 44 MCP joints (p < 0.001), improving from 50° to 1.5°, and in 14 of 33 PIP joints (p = 0.182), improving from 44° to 16°. Four joints had recurrence within 6 weeks. Of the 48 joints with minimum 4-month follow-up (mean, 26 months), 12 had recurrence at 2-year follow-up (MCP, 6; PIP, 6). At 2-year follow-up, MCP and PIP contractures measured 17° and 35.5°, respectively. Older age and multiple digit involvement were associated with higher recurrence rates. CONCLUSIONS: CCH offers a safe, nonoperative option to correct FCC in Dupuytren disease with greater success for MCP joints compared to PIP joints. There is a tendency of reoccurrence within 2 years of treatment. Further investigation is needed to determine optimal timing of repeat CCH injection to improve upon or extend the period of contracture resolution.

Treatment of Neglected Proximal Interphalangeal Fracture Dislocation Using a Traction Device: A Case Report

This paper reports the use of a traction device for the treatment of neglected proximal interphalangeal fracture dislocations. A 44-year-old man with a fracture dislocation of a right ring finger proximal interphalangeal joint was admitted 17 days after the injury. Closed reduction and external fixation were performed using a dynamic traction device and C-arm under a brachial plexus block. Passive range of motion exercise was started after two weeks postoperatively and active range of motion exercise was started after three weeks. The traction device was removed after five weeks. No infection occurred during the traction period. No subluxation or displacement was observed on the X-ray taken two months postoperatively. The active range of motion of the proximal interphalangeal joint was 90°. The patient was satisfied with the functional result of the treatment with the traction device. The dynamic traction device is an effective treatment for neglected fracture dislocations of the proximal interphalangeal joint of a finger.

Three Cases of Pachydermodactyly / 대한피부과학회지

Pachydermodactyly (PDD) is a rare, benign form of digital fibromatosis that is characterized by asymptomatic soft tissue swellings on the back and side of the proximal interphalangeal joint areas of the fingers. We report three cases of young male patients who presented with bilateral swelling of the fingers. Histopathologic examination showed epidermal hyperplasia with acanthosis and hyperkeratosis. Collagen fibers in the reticular dermis were thickened and irregularly arranged, and deposition of mucin in the dermis was observed. Since pachydermodactyly usually affects adolescent males with joint swelling, it is often confused with rheumatologic diseases. Here, we report three cases diagnosed with pachydermodactyly based on clinical manifestations and histopathological examination.

Modified Transosseous Wiring Technique for Neglected Fracture–Dislocation of the Proximal Interphalangeal Joint

BACKGROUND: Fracture–dislocation of the proximal interphalangeal (PIP) joint of the finger is challenging due to the high risk of stiffness. The purpose of this study is to evaluate the clinical and radiological results of a modified transosseous wiring technique for the management of chronic fracture–dislocations of the PIP joint. METHODS: Ten patients (nine men and one woman; mean age, 38.3 years; range, 21 to 69 years) with neglected fracture–dislocation of the PIP joint were included. The mean duration from injury to operation was 14.7 weeks (range, 3 to 66 weeks). The dorsolateral approach and extension block pinning were used to reduce dislocation. After thorough debridement of the scar tissues in the dorsal dead space and the fracture site, the reduction was maintained with transosseous wiring. Radiologic evaluations of bone union and arthritic changes and clinical evaluations (range of motion of the PIP joint and Disabilities of the Arm, Shoulder and Hand [DASH] score) were performed. The mean follow-up period was 12.9 months (range, 12 to 19 months). RESULTS: All patients demonstrated evidence of radiographic healing within a mean healing time of 6 weeks (range, 4 to 10 weeks); however, one had a widened gap and one had an early arthritic change. The mean range of motion in the PIP joint was 81° (range, 50° to 105°). The mean DASH score was 21.6 (range, 7.5 to 35.8). CONCLUSIONS: For chronic fracture–dislocation of the PIP joint, transosseous wiring with direct curettage and optimal bone purchase can provide satisfying outcome.

Anatomical study on finger of extensor tendon in zone Ⅰ / 局解手术学杂志

Objective To discuss the effect of proximal interphalangeal joint(PIPJ) motion on the tension of the zone Ⅰ extensor tendon through measuring the extensor tendon and find the fixed position of PIPJ when the zone Ⅰ extensor tendon at minimum tension,and to provide reference for best fixed position in clinical treatment.Methods The maximal passive flexion angles of the distal interphalangeal joint (DIP J) of the index,distal,ring and little fingers were measured in 20 cadaver hands when the PIPJ flexed at 0 °,20 °,40 °,60 °,80 ° and 100 °.Making an incision over the back of the DIPJ to expose the zone Ⅰ extensor tendon.Incising the extensor tendon laterally at the level of the DIPJ with the DIPJ fixed in extension position to make a mallet finger.Pierced a Kirschner wire through and perpendicular to the distal phalangeal basement as a sign.Parallel to this sign,marked the zone Ⅰ extensor tendon and measured its relative distance to the sign as the sliding distance of the extensor.Recording the widest gap between the tendon edges and the tendon sliding distance while the PIPJ was in extension and 20°,40°,60°,80° and 100°flexion position,severally.Results The maximal passive flexion angle of the DIPJ increased with the PIPJ flexed from 0°to 100°in 80 fingers.The gap between the extensor tendon edges in zone Ⅰ was (1.322 8 ± 1.078 9) mm when the PIPJ was in extension position.The proximal extensor tendon glide distally while the PIPJ flexed to 100° with an average sliding distance of(1.540 5 ± 0.690 7) mm.Conclusion The zone Ⅰ extensor tendon has the maximal tension while the PIPJ is in extension position.Flexing PIPJ can make the tension decrease.

An accessory extensor pollicis longus tendon: a case report of rare anatomical variant / Tendón accesorio del músculo extensor largo del pulgar: reporte de caso de una rara variación anatómica

SUMMARY: Variation in the morphology of the extensor pollicis longus muscle is very rare. The muscle is considered as one of the deep group of dorsal forearm muscles. It passes through the dorsal radiocarpal ligament in a detached compartment. It inserts at the base of the distal phalanx of the thumb. The muscle might have double tendons where they run either in one, or in separate compartments. In this study, we report an extremely rare condition for a 38-year-old male where some of the tendon fibers split at the base of the proximal phalanx and the two tendons insert at the sides of the base of the distal phalanx. We also noticed a high range of hyperextension where the action was painless and showed no sign of discomfort. We believe that the way the tendons get inserted might have a role in this wide range of extension.

RESUMEN: La variación en la morfología del músculo extensor largo del pulgar es muy rara. Es considerado perteneciente al grupo profundo de los músculos del dorso del antebrazo. Su tendón pasa a través del ligamento radiocarpiano dorsal en un compartimiento separado. Se inserta en la base de la falange distal del pulgar. El músculo puede tener tendones dobles que pasan a través de un solo compartimiento, o en compartimentos separados, del ligamento radiocarpiano dorsal. En este estudio se reporta una variación extremadamente rara en un hombre de 38 años de edad, donde algunas de las fibras del tendón se dividen en la base de la falange proximal y los dos tendones se insertaban a los lados de la base de la falange distal del pulgar. También observamos un alto grado de hiperextensión siendo la acción indolora y no mostrando ningún signo de malestar. Creemos que la forma en que los tendones se insertan podrían tener un papel en este amplio rango de extensión.

Osteosynthesis of mallet finger using plate and screws: evaluation of 25 patients / Osteossíntese do dedo em martelo com placa e parafuso: avaliação de 25 pacientes

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. RESULTS: The results from 10 patients (40%) were excellent and from 15 (60%), good. Twenty-one patients (84%) reported no pain, 18 months after the operation. There was no limitation to range of motion in 14 cases (56%), limitation of extension in seven (28%) and limitation of flexion in four (16%). CONCLUSION: Surgical treatment by means of open reduction and internal fixation using a hook plate and screw proved to be an excellent option for treating mallet finger fractures and was considered to be a safe and effective method.

Avaliar os resultados do tratamento cirúrgico de pacientes com lesão de dedo em martelo com o uso de placa-gancho e parafuso. MÉTODOS: Foram analisados 25 pacientes entre 20 e 35 anos, 19 do sexo masculino e seis do feminino, de maio de 2008 a dezembro de 2012. Os pacientes foram submetidos à avaliação de acordo com os critérios de Crawford e o acompanhamento médio foi de 18 meses. RESULTADOS: Os resultados obtidos foram excelentes em 10 pacientes (40%) e bons em 15 (60%); 21 pacientes (84%) não referiram dor no 18° mês de pós-operatório. Foi verificada ausência de limitação da amplitude de movimento em 14 casos (56%), limitação da extensão em sete (28%) e limitação da flexão em quatro (16%). CONCLUSÃO: O tratamento cirúrgico com redução aberta e fixação interna com placa-gancho e parafuso demonstrou ser uma ótima opção de tratamento nas fraturas em martelo e é considerado um método seguro e eficaz.

Clinical Results of Dynamic External Fixation for Proximal Interphalangeal Joint Fracture Dislocation

PURPOSE: We evaluated clinical outcomes after treating patients with proximal interphalangeal (PIP) joint fracture-dislocation with dynamic external fixator with which early joint motion can be undertaken to prevent joint stiffness effectively and fixate joints firmly. METHODS: Dynamic external fixators were applied for 20 fracture-dislocation of the PIP joints in 19 patients. The joints involved were 2nd PIP joint in two patients, 3rd PIP joint in three patients, 4th PIP joint in five patients, 5th PIP joint in eight patients. One patient had both 3rd and 4th PIP joint fracture-dislocation. Surgery was performed at least within four weeks. The mean age of the patients was 30.5 years (range, 15-54 years) and the mean follow-up duration was 1.85 years (range, 1-2.3 years) years. All patients were clinically and radiologically assessed on an outpatient basis after being discharged. RESULTS: At the final follow-up, the mean range of motion of PIP joints in flexion was 100.1° (flexion range, 88°-110°), the mean extension lag was 3.0° (extension range, 0°-10°), and the mean visual analogue scale score was 0.8. On anterior-posterior and lateral radiographs, congruity of the joint was satisfactory and 1 mm step off was present in three cases. CONCLUSION: We attained satisfactory clinical outcomes on the recovery of joint movement and joint congruity after treating PIP joint fracture-dislocation injury with dynamic external fixator.

An Intraosseous Epidermoid Cyst That Originated from the Nail Bed of Great Toe with Concurrent Joint Infection: A Case Report / 대한족부족관절학회지

We report on a rare case of an intraosseous epidermoid cyst in the distal phalanx of the great toe with concurrent infection in a 71-year-old woman with diabetes mellitus. The lesion was initially considered simple infectious arthritis and concomitant osteomyelitis in a patient with diabetes. However, after surgery, an intraosseous epidermoid cyst originating from the nail bed and involving the articular surface of the distal phalanx was detected. The epidermoid cyst may have contributed to the infectious arthritis in the interphalangeal joint. The lesion was treated via mass excision, arthrotomy, debridement, and intravenous antibiotics.

Irreducible Open Dorsal Dislocation of the Proximal Interphalangeal Joint: A Case Report

Dorsal dislocation of the proximal interphalangeal joint is a common injury in the orthopedic department. In most cases, the joint is reduced simply by closed manipulation. However, in rare cases, the joint is not reducible by closed manipulation, therefore, surgery is required. We report on a case of irreducible open dorsal dislocation of the proximal interphalangeal joint which was surgically treated. Because the flexor tendon interposed between the head of the proximal phalanx and the base of the middle phalanx, we could reduce the joint only after repositioning of the flexor tendon.

Uso de férulas correctoras en la rigidez de la articulación interfalángica proximal como consencuencia de un traumatismo / Corrective splints in the stiffness of the proximal interphalangeal joint as a result of trauma

La pérdida de rango de movimiento pasivo (PROM) en las articulaciones interfalángicas de la mano es una secuela común tras lesiones traumáticas. A pesar de que el uso de férulas se ha convertido en una modalidad terapéutica ampliamente aceptada para mejorar el PROM, existe muy poca evidencia empírica que guíe en la prescripción de férulas. El presente estudio investiga el efecto del uso de férulas correctoras en contracturas en fexión de la articulación interfalángica proximal (IFP) de los dedos de la mano tras una lesión traumática. Diecisiete pacientes con una contractura en fexión de la IFP tras una lesión traumática como consecuencia de un accidente laboral participaron en este estudio experimental. Mediante un goniómetro digital se valoró el PROM de la articulación IFP de dichos pacientes y se les asignó de manera aleatoria a uno de los dos grupos de férulas. A los pacientes del grupo A se les colocó una férula de extensión dinámica de la IFP y a los del grupo B se les colocó una férula de extensión estática. El PROM de la articulación se volvió a valorar con un goniómetro en el momento en el que los pacientes recibieron el alta laboral. Los resultados indicaron mejorías signifcativas en ambos grupos en la corrección de la contractura en fexión (p<0,05). La diferencia entre los pacientes que usaron la férula dinámica frente a los que usaron la férula estática no fue estadísticamente signifcativa. Ambos tipos de férulas pueden ser recomendadas para el tratamiento de contracturas en fexión inferiores a 35º de la IFP tras una lesión traumática.

Reduced passive range of motion (PROM) of the interphalangeal joints of the hand is a common consequence after a traumatic injury.Although mobilizing splinting has become a rehabilitative approach widely accepted by therapists to improve PROM, limited empirical evidence is available to guide in its prescription. This study investigates the effect of corrective splinting on fexion contracture of the fnger proximal interphalangeal joints (PIP) after a traumatic injury of the hand. Seventeen patients with fnger fexion contracture of the PIP as a result of an industrial accident participated in the experimental study. The passive range of motion of the PIP joint was measured with a fnger goniometer and patients were randomly allocated to one of two splint programs. Subjects in group A were given dynamic extension splints, and subjects in group B were given static splints. PROM was re- assessed with a goniometer once the patient was discharged and started working again. Results indicated signifcant improvement in both groups in the correction of the fnger fexion contracture (p<0,05). Patients with dynamic fnger extension splints did not differ signifcantly from those with static splints in extension gains. Both types of splints can be recommended for fexion contractures of 35 degrees or less in the PIP joint after a traumatic injury.

Arthrodesis of Distal Interphalangeal Joints in the Hand with Interosseous Wiring and Intramedullary K-wire Fixation

BACKGROUND: To evaluate the efficacy of intramedullary K-wire fixation and interosseous wiring in the arthrodesis of the distal interphalangeal (DIP) joint with description of surgical procedure. METHODS: We retrospectively analyzed 9 cases (7 women and 2 men) of DIP joint arthrodesis. The average age of patients was 44.2 years (range, 21 to 71 years) and the mean follow-up period was 19.6 months. Joint union was evaluated on the follow-up radiographs together with postoperative complications. RESULTS: All cases achieved radiologic union of the arthrodesis site. There was no surgical complication except for one case of skin irritation by the interosseous wire knot which was removed during the follow-up period. CONCLUSIONS: Intramedullary K-wire fixation and interosseous wiring could be an alternative procedure of arthrodesis in the DIP joint.

Open Reduction and Internal Fixation for Intraarticular Volar Fractures of the Middle Phalanx in Proximal Interphalangeal Joint

PURPOSE: We report clinical and radiographic outcomes after internal fixation of intraarticular volar fractures of the middle phalanx base. METHODS: A retrospective review was conducted on 11 patients who had been treated with miniplate or screw for acute proximal interphalangeal joint fracture, after adjusting for the cases excluding severe comminuted or open fractures. The participants consisted of 9 males and 2 females, with average age of 43.7 years and with average follow-up period of 15.2 months. Bony union, change of articular side were examined through radiographs, and functional results were evaluated by means of the total active range of motion (TAM) and the disabilities of the arm, shoulder, and hand (DASH). RESULTS: Of 11 cases of a finger fracture, 7 cases were fixed by miniplate with screws and 4 cases by screws alone. At the final follow-up retrospection, the average range of proximal interphalangeal joint motion was 95degrees, the average TAM was 243.2degrees, and the average DASH score was 7.4. Average 2.8 months was spent from the finger fracture to bony union. There was no case of degenerative change. CONCLUSION: Open reduction and internal fixation with screws for acute intraarticular fractures of the middle phalanx base showed favorable results in our study and it could be one of recommendable treatment options.

"Delta(Delta) wire Technique" for Bony Mallet Finger: Surgical Technique / 대한정형외과연구학회지

Bony mallet finger is treated by from conservative management to various operative options. A lot of internal fixations except hook plate lead to cartilage damage and limitation of motion of distal interphalangeal joint. Thus we introduce Delta(Delta)-wire technique which can permit early joint motion and give strong compression force on the fracture fragment continuously.

Intractable Plantar Keratoses due to Interphalangeal Sesamoid Bone of the Hallux (A Case Report) / 대한족부족관절학회지

A sesamoid bone can occasionally be found under the interphalangeal joint of the hallux. These had anatomical variants and usually remain asymptomatic, it is uncommon for symptomatic cases of painful plantar keratoses or irreducible dislocation of interphalangeal joint of the hallux with incarcerated sesamoid. While the latter has a few cases, the former has not reported in Korea. We experienced a rare case of intractable plantar keratoses due to interphalangeal sesamoid bone of the hallux which may reqire excision.