Acute cellulitis as local reaction to orthopedic implant - case presentation.

Due to increasing number of arthroplasties and osteosynthesis, foreign body reaction to implants is a major problem for orthopedic surgeons, since it is considered to be responsible for severe complications impairing the outcome of the treatment and requiring multiple surgery. Different mechanisms have been described as being involved, and research is focused on finding biomaterials with increased biocompatibility in order to minimize these complications. The clinical aspect of this reaction is usually dominated by chronic pain, with mild functional deficits, and the diagnosis results from excluding other causes of chronic pain, such as infection, osteoarthritis, peripheral neuropathies or angiopaties. The authors present a case with unusual clinical aspect, that of acute cellulitis, when early proper treatment, represented by implant removal, allowed healing without the onset of infection or other complications; histological evaluation confirmed the reaction to implant, thus concluding that surgical treatment when intolerance to implant is suspected is the only method to prevent future negative events.

Morphological landmarks of proximal humerus with impact in post-traumatic outcome.

As one of the fundamental requirements for an optimal function of the locomotive system is the integrity of the skeleton, the morphology of proximal humerus is crucial for upper limb performance. Not only that the bone is the support for muscle insertion, but its particular form is responsible especially for the complex movement of the shoulder joint, so that any pathological features of this morphology results in different degrees of dysfunction. Since trauma is the most frequent cause for morphological changes of this area, this paper studies the anatomical landmarks, which are affected by proximal humeral fractures and must be targeted when treating these injuries, for they influence the functional outcome. Evaluating the results from a Level 1 Trauma Centre, the authors underline the importance of these anatomical landmarks in approaching proximal humeral fractures and aim to establish a morphology-based therapeutic algorithm, crucial for optimal functional restoration.

Treatment Options for Distal Femoral Fractures.

INTRODUCTION: Due to their high complication rate and negative impact of those complications upon the knee and the whole lower limb, distal femoral fractures require optimal restoration of the functional anatomy and stable fixation thus allowing early recovery. This paper presents the experience of the authors regarding the indications and results of the most accepted surgical methods, including late complications affecting the knee. MATERIAL AND METHOD: 36 patients with closed distal femoral fractures (21-81 yrs old) operated in Bucharest, Clinical Emergency Hospital, Orthopedics and Trauma Clinic, were retrospectively studied from the point of view of the fracture and implant type, functional results and complications. RESULTS: Most of the fractures were high energy comminuted fractures (27 cases), mainly with articular involvement. Retrograde nail was used in type A fractures, while plating (LCP) was the main indication for type C fractures. The functional outcome was correlated with the fracture type and the incidence of complications was higher in type A3, C2 and C3 fractures. CONCLUSION: Anatomical reduction of the articular surface, restoration of functional anatomy and stable fixation are mandatory for an optimal knee function after distal femoral fractures. Failure to achieve them, due to the character of the fracture or to improper fixation, is followed by significant functional deficit, thus delaying the patients' recovery.

Recombinant human bone morphogenetic protein-2: a randomized trial in open tibial fractures treated with reamed nail fixation.

BACKGROUND: Recombinant human bone morphogenetic protein-2 (rhBMP-2) improves healing of open tibial fractures treated with unreamed intramedullary nail fixation. We evaluated the use of rhBMP-2 in the treatment of acute open tibial fractures treated with reamed intramedullary nail fixation. METHODS: Patients were randomly assigned (1:1) to receive the standard of care consisting of intramedullary nail fixation and routine soft-tissue management (the SOC group) or the standard of care plus an absorbable collagen sponge implant containing 1.5 mg/mL of rhBMP-2 (total, 12.0 mg) (the rhBMP-2/ACS group). Randomization was stratified by fracture severity. The absorbable collagen sponge was placed over the fracture at wound closure. The primary efficacy end point was the proportion of subjects with a healed fracture as demonstrated by radiographic and clinical assessment thirteen and twenty weeks after definitive wound closure. RESULTS: Two hundred and seventy-seven patients were randomized and were the subjects of the intent-to-treat analysis. Thirteen percent of the fractures were Gustilo-Anderson Type IIIB. The proportions of patients with fracture-healing were 60% and 48% at week 13 (p = 0.0541) and 68% and 67% at week 20 in the rhBMP-2/ACS and SOC groups, respectively. Twelve percent of the subjects underwent secondary procedures in each group; more invasive procedures (e.g., exchange nailing) accounted for 30% of the procedures in the rhBMP-2/ACS group and 57% in the SOC group (p = 0.1271). Infection was seen in twenty-seven (19%) of the patients in the rhBMP-2/ACS group and fifteen (11%) in the SOC group (p = 0.0645; difference in infection risk = 0.09 [95% confidence interval, 0.0 to 0.17]). The adverse event incidence was otherwise similar between the treatment groups. CONCLUSIONS: The healing of open tibial fractures treated with reamed intramedullary nail fixation was not significantly accelerated by the addition of an absorbable collagen sponge containing rhBMP-2.