Proximal Ulna Osteotomy for Complex Fractures of the Distal Humerus: A 3-Dimensional Laser Analysis and Comparison With Olecranon Osteotomy.

PURPOSE: The current methods of distal humerus (DH) articular surface visualization only allow a limited view of the joint. This study describes an osteotomy procedure that increases the visualization of and access to the DH articular surface for fixation without compromising ligaments. METHODS: Eighteen fresh-frozen human elbows (9 matched pairs) underwent proximal ulna osteotomy (PUO) or transverse olecranon osteotomy (OO) contralaterally. The visualized articular surface of the DH was demarcated, and the surface areas of the DH, capitellum, and trochlea were measured using 3-dimensional scanning. The angular arc of the articular surface of the capitellum and trochlea was measured using a goniometer. RESULTS: The 3-dimensional scans showed that 87.6% of the total DH surface area was visualized using PUO versus 65.6% using OO. When the trochlea and capitellum surface areas were separated, 94.0% versus 75.9% of the trochlea and 74.8% versus 44.7% of the capitellum were visualized using PUO and OO, respectively. The goniometric angles demonstrated that 98.2% versus 70.9% of the trochlea and 75.1% versus 43.5% of the capitellum articular surface arc angles were visualized using PUO and OO, respectively. After PUO with further release of the flexor-pronator mass was performed, 100% of the DH articular surface was visualized. CONCLUSIONS: Proximal ulnar osteotomy improves the visualization of the DH articular surface. CLINICAL RELEVANCE: Proximal ulna osteotomy spares ligaments, avoids osteotomizing the greater sigmoid notch, involves more robust metaphyseal bone for potentially better fixation, and may permit DH arthroplasty without compromising primary ligamentous elbow stabilizers. Further clinical studies are needed to assess the utility of this type of osteotomy.

Dalteparin vs low-dose unfractionated heparin for prophylaxis against clinically evident venous thromboembolism in acute traumatic spinal cord injury: a retrospective cohort study.

BACKGROUND: When venous thromboembolism (VTE) includes deep-vein thrombosis (DVT) and pulmonary embolism (PE), patients with acute traumatic spinal cord injury (SCI) have the highest incidence of VTE among all hospitalized groups, with PE the third most common cause of death. Although low-molecular-weight heparin (LMWH) outperforms low-dose unfractionated heparin (LDUH) in other patient populations, the evidence in SCI remains less robust. OBJECTIVE: To determine whether the efficacy for LMWH shown in previous SCI surveillance studies (eg, routine Doppler ultrasound) would translate into real-world effectiveness in which only clinically evident VTE is investigated (ie, after symptoms or signs present). METHODS: A retrospective cohort study was conducted of 90 patients receiving LMWH dalteparin (5,000 U daily) or LDUH (5,000 U twice daily) for VTE prophylaxis after acute traumatic SCI. The incidence of radiographically confirmed VTE was primarily analyzed, and secondary outcomes included complications of bleeding and heparin-induced thrombocytopenia. RESULTS: There was no statistically significant association (p = 0.7054) between the incidence of VTE (7.78% overall) and the type of prophylaxis received (LDUH 3/47 vs dalteparin 4/43). There was no significant differences in complications, location of VTE, and incidence of fatal PE. Paraplegia (as opposed to tetraplegia) was the only risk factor identified for VTE. CONCLUSIONS: There continues to be an absence of definitive evidence for dalteparin (or other LMWH) over LDUH as the choice for VTE prophylaxis in patients with SCI. Novel approaches to VTE prophylaxis are urgently required for this population, whose risk of fatal PE has not decreased over the last 25 years.

Nature of after-hours calls at a tertiary-level rehabilitation center.

OBJECTIVES: To determine the incidence and nature of calls for on-call physicians after hours at a tertiary-level rehabilitation center. DESIGN: Prospective survey of on-call physicians during 1 year. SETTING: A tertiary-level rehabilitation center with 66 beds in Nova Scotia. PARTICIPANTS: Residents, clinical associates, and staff physicians covering calls. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Number of calls during 1 year, types of calls, medical issues dealt with, and time spent in center after hours dealing with calls. RESULTS: The overall response rate by on-call physicians was 75%. In the 274 days for which surveys were returned, 467 calls were received. Of these calls, 53% were for medication orders, 36% for medical issues, 7% for procedures, and 5% for incidents. CONCLUSIONS: For a 65-bed unit, on-call staff were called a median of once per night. The most common call was for medication orders. House staff were required to come in about once in every 9 calls (11%) and stayed less than 1 hour in most cases.

Ethical concerns in isolating patients with methicillin-resistant Staphylococcus aureus on the rehabilitation ward: a case report.

Concern about methicillin-resistant Staphylococcus aureus (MRSA) is increasing in rehabilitation facilities. Those affected are often isolated to prevent the spread of MRSA to other patients. Because this isolation often interferes with the traditional rehabilitative approach, rehabilitation team members find themselves in an ethical dilemma as to how to approach these patients. Some patients may feel that strict isolation protocols violate their rights. We report a case showing the ethical dilemmas that an MRSA-positive patient brings to the rehabilitation setting. Isolation techniques make it difficult to treat rehabilitation patients using the current standards of care without compromising the medical ethics principles of autonomy and beneficence. Further study is required to establish protocols for patients with MRSA in the rehabilitation setting.