RESUMEN
BACKGROUND: Orthopaedic injuries may lead to an increased incidence of intimate partner violence (IPV) during recovery as people dependent on others' help are at a higher risk for abuse. Additionally, there is a lack of understanding of how IPV affects injury recovery. In women being treated for an orthopaedic injury, we aimed to determine the number of new IPV disclosures in the 12 months after an injury and to explore the impact of IPV on recovery. METHODS: We enrolled 250 female participants from 6 orthopaedic fracture clinics in Canada, the Netherlands, Spain, and Finland. IPV disclosure and clinical outcomes were assessed at the initial visit and during the 12-month follow-up period. RESULTS: Of 250 participants, 81 (32.4% [95% confidence interval (CI), 26.6% to 38.2%]) had a history of IPV in their lifetime and disclosed this at their initial orthopaedic clinic appointment. Twenty-one participants (12.4% [95% CI, 7.5% to 17.8%]) who did not disclose abuse at the initial visit disclosed IPV during the follow-up. In our a priori unadjusted analysis, disclosure of IPV at the initial appointment or a subsequent follow-up appointment was associated with a 32% lower likelihood of returning to a pre-injury level of function with no restrictions regarding responsibilities at home (hazard ratio, 0.68 [95% CI, 0.46 to 0.99]; p = 0.046). Participants disclosing IPV had lower health-related quality of life on the EuroQol-5 Dimensions (EQ-5D) at the 6-month-follow-up, with adjusted mean differences of -5.3 (95% CI, -10.2 to -0.4, p = 0.04) for the visual analog scale and -0.06 (95% CI, -0.11 to -0.01; p = 0.02) for the Function Index. They also had lower Function Index scores at the final 12-month follow-up visit, with an adjusted mean difference of -0.06 (95% CI, -0.10 to -0.02; p = 0.006). CONCLUSIONS: A surprisingly high percentage of women disclosed IPV within 12 months after the injury. Our exploratory results suggest that women who disclose IPV may have lower health-related quality of life. This study supports the need to optimize orthopaedic clinics to provide appropriate support for asking about and assisting individuals who experienced IPV. Additional research is warranted to further explore these findings. LEVEL OF EVIDENCE: Prognostic Level II. See Instructions for Authors for a complete description of levels of evidence.
Asunto(s)
Fracturas Óseas , Violencia de Pareja , Ortopedia , Femenino , Fracturas Óseas/epidemiología , Humanos , Masculino , Estudios Prospectivos , Calidad de VidaRESUMEN
OBJECTIVES: To evaluate the differences in patient outcomes after operative or nonoperative treatment of displaced, type II distal clavicle fractures. DESIGN: Multicenter, prospective, randomized controlled trial. SETTING: Level I trauma centers. PATIENTS/PARTICIPANTS: Patients with completely displaced type II distal clavicle fractures were included. Fifty-seven patients were randomized: 27 to the operative group and 30 to the nonoperative group. INTERVENTION: Patients randomized to nonoperative care received a standard shoulder sling, followed by pendulum or gentle range of motion shoulder exercises at any time as directed by the attending surgeon. Patients randomized to the operative group received plate fixation with a precontoured distal clavicular plate or a "hook" plate within 28 days from injury. MAIN OUTCOME MEASURE: Disabilities of the Arm, Shoulder and Hand scores at 1 year. RESULTS: There were no between-group differences in Disabilities of the Arm, Shoulder and Hand or Constant scores at 1 year. More patients in the operative group went on to union (95% vs. 64%, P = 0.02) within 1 year. Twelve patients in the operative group underwent a second operation for implant removal (12/27, 44%). In the nonoperative group, 6 patients (6/30, 20%) subsequently underwent 8 operative procedures. CONCLUSION: Although this study failed to demonstrate a difference in functional outcomes between operative and nonoperative treatment of Neer type II distal clavicle fractures, nonoperative management led to more complications including a moderate rate of nonunion, which often required secondary surgery to correct, a higher rate of early dissatisfaction with shoulder appearance, and a delayed return to activities in the first 6 months. Operative management provided a safe and reliable treatment option with few complications, but often required secondary implant removal, especially with hook plate fixation. LEVEL OF EVIDENCE: Therapeutic Level II. See Instructions for Authors for a complete description of levels of evidence.
Asunto(s)
Fracturas Óseas , Fracturas no Consolidadas , Placas Óseas , Clavícula/cirugía , Fijación Interna de Fracturas , Curación de Fractura , Fracturas Óseas/cirugía , Humanos , Estudios Prospectivos , Resultado del TratamientoRESUMEN
Background: Osteoarthritis of the shoulder or glenohumeral joint is a painful condition that can be debilitating. Intra-articular injection with hyaluronic acid should be considered for patients not responding adequately to physical therapy or anti-inflammatory medication. Methods: This was a single-arm, open-label, prospective study of a single intra-articular injection of NASHA (non-animal hyaluronic acid) in patients with symptomatic glenohumeral osteoarthritis. Patients were followed up for 26 weeks post-treatment, during which time rescue medication with acetaminophen was permissible. The study objective was to demonstrate that a single injection of NASHA is well tolerated with an over-6-month 25% reduction in shoulder pain on movement, assessed using a 100-mm visual analog scale. Results: Forty-one patients were enrolled, all of whom received study treatment. The mean decrease in shoulder pain on movement score over the 6-month study period was -20.1 mm (95% CI: -25.2, -15.0 mm), corresponding to a mean reduction of 29.5% (22.0, 37.0%). Statistically significant improvements were also observed in shoulder pain at night and patient global assessment. There was no clear change over time in the percentage of patients using rescue medication and mean weekly doses were below 3500 mg. Seventeen patients (41.5%) experienced adverse events, all of which were mild or moderate. Two adverse events (both shoulder pain) were deemed related to study treatment. Conclusion: This study provides preliminary evidence that a single injection of NASHA may be efficacious over 6 months and well tolerated in patients with symptomatic glenohumeral osteoarthritis. Larger studies are needed for confirmation.
RESUMEN
PURPOSE: The purpose of this study was to survey surgeons' preferences surrounding the management and evaluation of proximal humerus fractures internationally. METHODS: A questionnaire was developed using previous literature and input from practicing orthopaedic surgeon opinion leaders. Between November 13, 2014 and December 31, 2014, the questionnaire was posted on the membership section of three major orthopaedic and shoulder surgery association websites. Survey responses were anonymous. RESULTS: The survey was completed by 134 unique practicing orthopaedic surgeons. The majority of respondents (72%) practiced in North America while 28% practiced internationally. For displaced two-part fractures, a preference for open reduction and internal fixation (ORIF) with locking plates was identified (75%). No consensus was reached for preferred treatment of three- and four- part fractures: 37% chose ORIF with locking plates, 26% chose hemi-arthroplasty (HA), and 29% chose reverse shoulder arthroplasty (RSA). Preferred treatment types for three- and four-part fractures were marginally significantly different depending on place of practice (North America vs. international, p = 0.058). A significantly larger proportion of surgeons who had completed an upper extremity fellowship (35%) chose RSA for the treatment of three and four-part fractures, compared to those who had not (9%, p = 0.002). No consensus was observed regarding what outcome measure is best to assess function following proximal humerus fractures. CONCLUSIONS: The management of more complex, displaced proximal humerus fractures remains controversial. Additionally, there are conflicting opinions on what outcome measure is best to assess function following the treatment of proximal humerus fractures.
Asunto(s)
Fijación de Fractura/estadística & datos numéricos , Cirujanos Ortopédicos/estadística & datos numéricos , Pautas de la Práctica en Medicina/estadística & datos numéricos , Fracturas del Hombro/terapia , Adulto , Anciano , Artroplastía de Reemplazo de Hombro/estadística & datos numéricos , Femenino , Fijación de Fractura/efectos adversos , Humanos , Húmero/cirugía , Masculino , Persona de Mediana Edad , Encuestas y CuestionariosRESUMEN
OBJECTIVES: We sought to determine whether the use of the Reamer-Irrigator-Aspirator (RIA) device resulted in a decreased amount of fat emboli compared with standard reaming (SR) when performing intramedullary (IM) nailing of femoral shaft fractures. DESIGN: Prospective randomized clinical trial. SETTING: Multi-centered trial, level I trauma centers. PATIENTS/PARTICIPANTS: All eligible patients who presented to participating institutions with an isolated femoral shaft fracture amenable to fixation with antegrade IM nailing. Thirty-one patients were enrolled: nine were excluded because of technical difficulties with the transesophageal echocardiogram (TEE) recording. Therefore, the study comprised 22 patients: 11 patients randomized to the SR group and eleven patients randomized to the RIA group. INTERVENTION: Antegrade IM nailing of a femoral shaft fracture with standard reamers or the RIA device. All patients were monitored intraoperatively with a continuous TEE to assess embolic events in the right atrium. A radial arterial line was used to monitor blood gases and potential systemic effects of emboli. MAIN OUTCOME MEASURE: Duration, size, and severity of emboli as measured by TEE. The operative procedure was divided into 6 distinct stages: preoperative, reduction, guidewire passage, reaming, nail insertion, and postoperative. RESULTS: There was no significant difference in emboli between the RIA and SR groups preoperatively, during fracture reduction, guidewire insertion, or postoperatively. Measured with a standardized scoring system, there was a modest reduction in total emboli score in the RIA group during reaming (SR 5.30 [SD; 1.81] vs. RIA 4.05 [SD; 2.19], P = 0.005) and during nail insertion (SR 5.09 [SD; 1.74] vs. RIA 4.25 [SD; 1.89], P = 0.03). We were unable to correlate this reduction with any improvement in physiologic parameters (mean arterial pressure, end-tidal CO2, O2 saturation, pH, paO2, and paCO2). CONCLUSIONS: This study showed a modest reduction of embolic debris during the reaming and nail insertion segments of the operative procedure. We were unable to correlate this with any change in physiologic parameters. LEVEL OF EVIDENCE: Therapeutic Level II. See Instructions for Authors for a complete description of levels of evidence.
Asunto(s)
Embolia Grasa/etiología , Embolia Grasa/prevención & control , Fracturas del Fémur/cirugía , Fijación Intramedular de Fracturas/efectos adversos , Fijación Intramedular de Fracturas/instrumentación , Succión/instrumentación , Irrigación Terapéutica/instrumentación , Adolescente , Adulto , Embolia Grasa/diagnóstico , Diseño de Equipo , Análisis de Falla de Equipo , Femenino , Fracturas del Fémur/diagnóstico por imagen , Fijación Intramedular de Fracturas/métodos , Humanos , Masculino , Persona de Mediana Edad , Ontario , Osteotomía/instrumentación , Osteotomía/métodos , Estudios Prospectivos , Síndrome de Dificultad Respiratoria/diagnóstico , Síndrome de Dificultad Respiratoria/etiología , Síndrome de Dificultad Respiratoria/prevención & control , Pruebas de Función Respiratoria , Succión/métodos , Integración de Sistemas , Irrigación Terapéutica/métodos , Resultado del Tratamiento , Adulto JovenRESUMEN
OBJECTIVES: The aim of this study was to compare early weightbearing and range of motion (ROM) to nonweightbearing and immobilization in a cast after surgical fixation of unstable ankle fractures. DESIGN: Multicentre randomized controlled trial. SETTING: Two-level one trauma centers. PATIENTS: One hundred ten patients who underwent open reduction and internal fixation of an unstable ankle fracture were recruited and randomized. INTERVENTION: One of 2 rehabilitation protocols: (1) Early weightbearing (weightbearing and ROM at 2 weeks, Early WB) or (2) Late weightbearing (nonweightbearing and cast immobilization for 6 weeks, Late WB). MAIN OUTCOME MEASUREMENTS: The primary outcome measure was time to return to work (RTW). Secondary outcome measures included: ankle ROM, SF-36 heath outcome scores, Olerud/Molander ankle function score, and rates of complications. RESULTS: There was no difference in RTW. At 6 weeks postoperatively, patients in the Early WB group had significantly improved ankle ROM (41 vs. 29, P < 0.0001); Olerud/Molander ankle function scores (45 vs. 32, P = 0.0007), and SF-36 scores on both the physical (51 vs. 42, P = 0.008) and mental (66 vs. 54, P = 0.0008) components. There were no differences with regard to wound complications or infections and no cases of fixation failure or loss of reduction. Patients in the Late WB group had higher rates of planned/performed hardware removal due to plate irritation (19% vs. 2%, P = 0.005). CONCLUSIONS: Given the convenience for the patient, early improved functional outcome, and the lack of an increased complication rate, we recommend early postoperative weightbearing and ROM in patients with surgically treated ankle fractures. LEVEL OF EVIDENCE: Therapeutic Level I. See Instructions for Authors for a complete description of levels of evidence.
Asunto(s)
Fracturas de Tobillo/rehabilitación , Fijación Interna de Fracturas/métodos , Inmovilización/métodos , Rango del Movimiento Articular , Soporte de Peso , Adulto , Fracturas de Tobillo/diagnóstico , Fracturas de Tobillo/cirugía , Placas Óseas , Moldes Quirúrgicos , Distribución de Chi-Cuadrado , Terapia por Ejercicio/métodos , Femenino , Estudios de Seguimiento , Fijación Interna de Fracturas/rehabilitación , Humanos , Puntaje de Gravedad del Traumatismo , Inestabilidad de la Articulación/diagnóstico , Inestabilidad de la Articulación/rehabilitación , Inestabilidad de la Articulación/cirugía , Masculino , Persona de Mediana Edad , Ontario , Cuidados Posoperatorios/métodos , Recuperación de la Función , Reinserción al Trabajo , Medición de Riesgo , Estadísticas no Paramétricas , Factores de Tiempo , Centros Traumatológicos , Resultado del TratamientoRESUMEN
OBJECTIVES: To systematically review and compare nonoperative and operative treatments for the management of periprosthetic distal femur fractures adjacent to total knee arthroplasties. Specific operative interventions compared included locked plating, retrograde intramedullary nailing (RIMN), and conventional (nonlocked) plating. Where possible, data were pooled to arrive at summary estimates of treatment effect [odds ratios (ORs) with associated 95% confidence intervals (CIs)]. METHODS: A comprehensive database search (via Pubmed, Medline, Cochrane Database, and the Orthopaedic Trauma Association database) was completed, yielding 44 eligible studies with a total of 719 fractures for analysis. Pertinent outcomes including malunion, nonunion, and the need for secondary surgical procedures were compared statistically. RESULTS: Both locked plating and RIMN demonstrated significant advantages over nonoperative treatment. Some advantages were also observed when locked plating and RIMN were compared with conventional (nonlocked) plates. Comparison of locked plating and RIMN showed no significant differences with regard to nonunion rates (OR = 0.39, 95% CI = 0.13-1.15; P = 0.09) or rate of secondary surgical procedures (OR = 0.65, 95% CI = 0.31-1.35; P = 0.25). However, RIMN demonstrated a significantly higher malunion rate when compared with locked plating (OR = 2.37, 95% CI = 1.17-4.81; P = 0.02). CONCLUSIONS: Locked plating and RIMN offer significant advantages over nonoperative treatment and conventional (nonlocked) plating techniques in the management of periprosthetic femur fractures above total knee arthroplasties. Locked plating demonstrated a trend toward increased nonunion rates when compared with RIMN. Malunion was significantly higher with RIMN compared with locked plating.
Asunto(s)
Artroplastia de Reemplazo de Rodilla/efectos adversos , Fracturas del Fémur/terapia , Fracturas Periprotésicas/terapia , Fracturas del Fémur/etiología , Humanos , Fracturas Periprotésicas/etiologíaRESUMEN
BACKGROUND: Malunion after displaced fractures of the clavicle can result in varying degrees of scapular malalignment and potentially scapular winging. The purpose of our study was to quantify the scapular malalignment in patients with midshaft clavicle malunions showing scapular winging. METHODS: Eighteen patients with symptomatic midshaft clavicle malunions showing scapular winging were identified and underwent standardized computed tomography scanning of the thorax. Specific bony landmarks on the clavicle and scapula were digitized, allowing generation of 3-dimensional points. These points were acquired bilaterally so that relative translations comparing the malunited side with the contralateral side could be obtained. Statistical analysis using a paired t test was performed. RESULTS: The mean time from fracture to examination was 42.9 months. There were 15 men and 3 women with a mean age of 41.6 years. The mean clavicular shortening was 21.1 mm (P = .0000004). The acromion of the affected scapula on average translated 24.3 mm. The components of this translation were medial, 11.9 mm (P = .00008); inferior, 20.7 mm (P = .0009); and anterior, 4.6 mm (P = .02). Posterior bony landmarks on the scapula including the superior and inferior angles of the scapula translated a total of 9.9 mm and 5.9 mm, respectively. CONCLUSION: This is the first study to document the degree of scapular malalignment in patients with symptomatic clavicle malunions showing scapular winging. The acromion closely follows the distal clavicular fragment and translates medially, inferiorly, and anteriorly. The translations of the superior and inferior angles of the scapula are quite variable in magnitude and direction, and on average, these angles translate substantially less than the acromion.
Asunto(s)
Desviación Ósea/diagnóstico por imagen , Clavícula/lesiones , Fracturas Óseas/diagnóstico por imagen , Fracturas Mal Unidas/complicaciones , Escápula/diagnóstico por imagen , Adulto , Femenino , Humanos , Imagenología Tridimensional , Masculino , Tomografía Computarizada por Rayos XRESUMEN
BACKGROUND: Standard open reduction and internal fixation techniques have been successful in restoring osseous alignment for bicondylar tibial plateau fractures; however, surgical morbidity, especially soft-tissue infection and wound necrosis, has been reported frequently. For this reason, several investigators have proposed minimally invasive methods of fracture reduction followed by circular external fixation as an alternative approach. To our knowledge, there has been no direct comparison of the two operative approaches. METHODS: We performed a multicenter, prospective, randomized clinical trial in which standard open reduction and internal fixation with medial and lateral plates was compared with percutaneous and/or limited open fixation and application of a circular fixator for displaced bicondylar tibial plateau fractures (Schatzker types V and VI and Orthopaedic Trauma Association types C1, C2, and C3). Eighty-three fractures in eighty-two patients were randomized to operative treatment (forty-three fractures were randomized to circular external fixation and forty to open reduction and internal fixation). Follow-up consisted of obtaining a history, physical examination, and radiographs; completion of the Hospital for Special Surgery (HSS) knee score, the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), and the Short Form-36 (SF-36) General Health Survey; and recording of complication and reoperation rates. RESULTS: There were no significant differences between the groups in terms of demographic variables, mechanism of injury, or fracture severity and/or displacement. However, patients in the circular fixator group had less intraoperative blood loss than those in the open reduction and internal fixation group (213 mL and 544 mL, respectively; p = 0.006) and spent less time in the hospital (9.9 days and 23.4 days, respectively; p = 0.024). The quality of osseous reduction was similar in the groups. There was a trend for patients in the circular fixator group to have superior early outcome in terms of HSS scores at six months (p = 0.064) and the ability to return to preinjury activities at six months (p = 0.031) and twelve months (p = 0.024). These outcomes were not significantly different at two years. There was no difference in total arc of knee motion, and the WOMAC scores at two years after the injury were not significantly different between the groups with regard to the pain (p = 0.923), stiffness (p = 0.604), or function (p = 0.827) categories. The SF-36 scores at two years after the injury were significantly decreased compared with the controls for both groups (p = 0.001 for the circular fixator group and p = 0.014 for the open reduction and internal fixation group), although there was less impairment in the circular fixator group in the bodily pain category (a score of 46) compared with the open reduction and internal fixation group (a score of 35) (p = 0.041). Seven (18%) of the forty patients in the open reduction and internal fixation group had a deep infection. The number of unplanned repeat surgical interventions, and their severity, was greater in the open reduction and internal fixation group (thirty-seven procedures) compared with the circular fixator group (sixteen procedures) (p = 0.001). CONCLUSIONS: Both techniques provide a satisfactory quality of fracture reduction. Because percutaneous reduction and application of a circular fixator results in a shorter hospital stay, a marginally faster return of function, and similar clinical outcomes and because the number and severity of complications is much higher with open reduction and internal fixation, we believe that circular external fixation is an attractive option for these difficult-to-treat fractures. Regardless of treatment method, patients with this injury have substantial residual limb-specific and general health deficits at two years of follow-up.
Asunto(s)
Fijadores Externos , Fijación Interna de Fracturas/métodos , Traumatismos de la Rodilla/cirugía , Fracturas de la Tibia/cirugía , Placas Óseas , Fijación Interna de Fracturas/efectos adversos , Humanos , Traumatismos de la Rodilla/rehabilitación , Procedimientos Quirúrgicos Mínimamente Invasivos/métodos , Selección de Paciente , Complicaciones Posoperatorias/prevención & control , Estudios Prospectivos , Rango del Movimiento Articular , Fracturas de la Tibia/rehabilitaciónRESUMEN
We conducted a prospective, randomized, controlled trial to compare functional outcomes, complications, and reoperation rates in elderly patients with displaced intra-articular, distal humeral fractures treated with open reduction-internal fixation (ORIF) or primary semiconstrained total elbow arthroplasty (TEA). Forty-two patients were randomized by sealed envelope. Inclusion criteria were age greater than 65 years; displaced, comminuted, intra-articular fractures of the distal humerus (Orthopaedic Trauma Association type 13C); and closed or Gustilo grade I open fractures treated within 12 hours of injury. Both ORIF and TEA were performed following a standardized protocol. The Mayo Elbow Performance Score (MEPS) and Disabilities of the Arm, Shoulder and Hand (DASH) score were determined at 6 weeks, 3 months, 6 months, 12 months, and 2 years. Complication type, duration, management, and treatment requiring reoperation were recorded. An intention-to-treat analysis and an on-treatment analysis were conducted to address patients randomized to ORIF but converted to TEA intraoperatively. Twenty-one patients were randomized to each treatment group. Two died before follow-up and were excluded from the study. Five patients randomized to ORIF were converted to TEA intraoperatively because of extensive comminution and inability to obtain fixation stable enough to allow early range of motion. This resulted in 15 patients (3 men and 12 women) with a mean age of 77 years in the ORIF group and 25 patients (2 men and 23 women) with a mean age of 78 years in the TEA group. Baseline demographics for mechanism, classification, comorbidities, fracture type, activity level, and ipsilateral injuries were similar between the 2 groups. Operative time averaged 32 minutes less in the TEA group (P = .001). Patients who underwent TEA had significantly better MEPSs at 3 months (83 vs 65, P = .01), 6 months (86 vs 68, P = .003), 12 months (88 vs 72, P = .007), and 2 years (86 vs 73, P = .015) compared with the ORIF group. Patients who underwent TEA had significantly better DASH scores at 6 weeks (43 vs 77, P = .02) and 6 months (31 vs 50, P = .01) but not at 12 months (32 vs 47, P = .1) or 2 years (34 vs 38, P = .6). The mean flexion-extension arc was 107 degrees (range, 42 degrees -145 degrees) in the TEA group and 95 degrees (range, 30 degrees -140 degrees) in the ORIF group (P = .19). Reoperation rates for TEA (3/25 [12%]) and ORIF (4/15 [27%]) were not statistically different (P = .2). TEA for the treatment of comminuted intra-articular distal humeral fractures resulted in more predictable and improved 2-year functional outcomes compared with ORIF, based on the MEPS. DASH scores were better in the TEA group in the short term but were not statistically different at 2 years' follow-up. TEA may result in decreased reoperation rates, considering that 25% of fractures randomized to ORIF were not amenable to internal fixation. TEA is a preferred alternative for ORIF in elderly patients with complex distal humeral fractures that are not amenable to stable fixation. Elderly patients have an increased baseline DASH score and appear to accommodate to objective limitations in function with time.
Asunto(s)
Artroplastia/métodos , Lesiones de Codo , Fijación Interna de Fracturas/métodos , Fracturas del Hombro/cirugía , Anciano , Articulación del Codo/cirugía , Femenino , Estudios de Seguimiento , Humanos , Masculino , Estudios Prospectivos , Resultado del TratamientoRESUMEN
Since the identification of the osteogenic protein-1 (OP-1) gene, also called bone morphogenetic protein-7 (BMP-7), almost 20 years ago, OP-1 has become one of the most characteristic members of the BMP family. The biological activity of recombinant human OP-1 has been defined using a variety of animal models. These studies have demonstrated that local implantation of OP-1 in combination with a collagen matrix results in the repair of critical size defects in long bones and in craniofacial bones and the formation of bony fusion masses in spinal fusions. Clinical trials investigating long bone applications have provided supportive evidence for the use of OP-1 in the treatment of open tibial fractures, distal tibial fractures, tibial nonunions, scaphoid nonunions and atrophic long bone nonunions. Clinical studies investigating spinal fusion applications have provided supportive evidence for the use of OP-1 in posterolateral lumbar models and compromised patients as an adjunct or as a replacement for autograft. Both long bone repair and spinal fusion studies have demonstrated the efficacy and safety of OP-1 by clinical outcomes and radiographic measures. Future clinical investigations will be needed to better define variables, such as dose, scaffold and route of administration. Clearly the use of BMPs in orthopaedics is still in its formative stage, but the data suggest an exciting and promising future for the development of new therapeutic applications.
Asunto(s)
Proteínas Morfogenéticas Óseas/uso terapéutico , Fracturas Óseas/tratamiento farmacológico , Fracturas no Consolidadas/tratamiento farmacológico , Factor de Crecimiento Transformador beta/uso terapéutico , Proteína Morfogenética Ósea 7 , Trasplante Óseo/métodos , Humanos , Procedimientos Ortopédicos/métodos , Fusión Vertebral/métodosRESUMEN
Locking plates increasingly are being used in the treatment of osteoporotic fractures. Such devices provide multiple fixed- angle anchorage points and improve fracture fixation stability in weak bone. We report two cases of early proximal humeral fracture fixation failure in osteoporotic bone by humeral shaft "fissure" or split fracture after open reduction and internal fixation with locking proximal humeral plates and screws. Each patient failed early in the postoperative period and was revised to fixation with compression plating techniques, with uneventful union.
Asunto(s)
Placas Óseas/efectos adversos , Fijación Interna de Fracturas/métodos , Fijadores Internos/efectos adversos , Fracturas del Hombro/cirugía , Anciano de 80 o más Años , Tornillos Óseos/efectos adversos , Diáfisis/lesiones , Falla de Equipo , Femenino , Fijación Interna de Fracturas/instrumentación , Humanos , Masculino , Persona de Mediana Edad , Osteoporosis/complicaciones , Radiografía , Fracturas del Hombro/diagnóstico por imagen , Fracturas del Hombro/patologíaRESUMEN
BACKGROUND: Resection is a common procedure for the treatment of comminuted fractures of the radial head. While radial head resection is associated with a high success rate when performed for appropriate indications, a number of well-defined biomechanical complications have been reported following this procedure, including proximal migration of the radius, the development of valgus deformity, and recurrent elbow instability in the acute setting. However, posterolateral rotatory instability has not previously been recognized as a complication of radial head resection. While the absence of the radial head makes the diagnosis difficult, we have identified a series of patients with posterolateral rotatory instability following radial head resection. We believe that this instability is secondary to unrecognized lateral ulnar collateral ligament deficiency. METHODS: Between November 1995 and September 2000, forty-two patients were evaluated because of elbow or forearm complaints following radial head resection. Seven patients (17%) were diagnosed with posterolateral rotatory instability on the basis of characteristic clinical and radiographic findings. RESULTS: The study group included five men and two women with a mean age of forty-two years. All seven patients had had radial head excision for the treatment of a comminuted radial head fracture at a mean of forty-four months (range, four months to sixteen years) prior to referral. All seven patients had lateral elbow pain, a sense of instability and/or weakness, and a positive lateral pivot-shift test. Posterolateral rotatory instability secondary to lateral ulnar collateral ligament insufficiency was confirmed intraoperatively in the four patients who were managed surgically. CONCLUSIONS: Clinicians should be aware that posterolateral rotatory instability may be a cause of unexplained elbow pain and instability following radial head resection. This diagnosis has implications for the prevention and treatment of this condition.