Background:The elbow is the second most commonly dislocated joint in adults and up to 20% of dislocations are associated with a fracture. These injuries can be categorised into groups according to their mechanism and the structures injured.Methods:This review includes a literature search of the current evidence and personal experiences of the authors in managing these injuries.Results:All injuries are initially managed with closed reduction of the ulno-humeral joint and splinting before clinical examination and radiological evaluation. Dislocations with radial head fractures should be treated by restoring stability, with treatment choice depending on the type and size of radial head fracture. Terrible triad injuries necessitate operative treatment in almost all cases. Traditionally the LCL, MCL, coronoid and radial head were reconstructed, but there is recent evidence to support repairing of the coronoid and MCL only if the elbow is unstable after reconstruction of lateral structures. Surgical treatment of terrible triad injuries carries a high risk of complications with an average reoperation rate of 22%. Varus posteromedial rotational instability fracture-dislocations have only recently been described as having the potential to cause severe long-term problems. Cadaveric studies have reinforced the need to obtain post-reduction CT scans as the size of the coronoid fragment influences the long-term stability of the elbow. Anterior dislocation with olecranon fracture has the same treatment aims as other complex dislocations with the added need to restore the extensor mechanism.Conclusion:Complex elbow dislocations are injuries with significant risk of long-term disability. There are several case-series in the literature but few studies with sufficient patient numbers to provide evidence over level IV.

Background:Radial head fractures are common elbow injuries in adults and are frequently associated with additional soft tissue and bone injuries.Methods:A literature search was performed and the authors’ personal experiences are reported.Results:Mason type I fractures are treated non-operatively with splinting and early mobilisation. The management of Mason type II injuries is less clear with evidence supporting both non-operative treatment and internal fixation. The degree of intra-articular displacement and angulation acceptable for non-operative management has yet to be conclusively defined. Similarly the treatment of type III and IV fractures remain controversial. Traditional radial head excision is associated with valgus instability and should be considered only for patients with low functional demands. Comparative studies have shown improved results from internal fixation over excision. Internal fixation should only be attempted when anatomic reduction and initiation of early motion can be achieved. Authors have reported that results from fixation are poorer and complication rates are higher if more than three fragments are present. Radial head arthroplasty aims to reconstruct the native head and is indicated when internal fixation is not feasible and in the presence of complex elbow injuries. Overstuffing of the radiocapitellar joint is a frequent technical fault and has significant adverse effects on elbow biomechanics. Modular design improves the surgeon’s ability to reconstruct the native joint. Two randomised controlled trials have shown improved clinical outcomes and lower complication rate following arthroplasty when compared to internal fixation.Conclusion:We have presented details regarding the treatment of various types of radial head fractures - further evidence, however, is still required to provide clarity over the role of these different management strategies.

The management of elbow fracture-dislocations is challenging. The internal joint stabiliser (IJS) (Skeletal Dynamics, Miami, FL) has been advocated as an alternative to traditional techniques. This article shares our initial clinical experience and provide a systematic review analysing the ability of the IJS to maintain radiographic joint reduction and the associated complication profile. Two cases of elbow fracture-dislocations treated at our centre using the IJS are presented. A systematic review of the literature was conducted using the online databases Medline, Scopus and EMBASE. Clinical studies reporting the maintenance of joint reduction after the use of IJS in patients with acute or chronic elbow instability were included. The two cases re- ported remained radiographically concentric at 6 months follow up without complications. 5 studies met the inclusion criteria and were included in the systematic review (total n=65). Only two patients across the studies had ongoing radiological in- stability (3%) and both were associated with coronoid insufficiency. The mean flexion-extension arc ranged from 106° to 135° and pronation- supination arc ranged from 138° to 151°. The mean DASH scores ranged from 16 to 37.3 and the mean Broberg and Morrey Functional score from 68.2 to 93. Complication rates in the case series ranged from 21% to 40%, the commonest complications were heterotopic ossification, neuropathy and infections. Initial reports into the use of the Internal Joint Stabiliser for elbow instability have shown a low incidence of residual radiological joint incongruency.

Osteonecrosis of the knee encompasses three conditions: spontaneous, secondary, and postarthroscopic. Treatment options include nonoperative treatment, joint preserving surgery, and arthroplasty. Bisphosphonates have been shown to successfully prevent bone resorption in animal studies and hip osteonecrosis. This article aims to systematically review the available evidence that bisphosphonates reduce pain and improve function in patients with knee osteonecrosis. A systematic review using the online databases Medline and EMBASE was conducted. All studies that assessed the use of bisphosphonates in the treatment of knee osteonecrosis were included. Critical appraisal using a validated quality assessment scale and the CONSORT statement was performed. Eight studies were eligible for inclusion, the total number of patients was 89, and the overall rate of side effects was 12%. Seven studies reported cases of spontaneous osteonecrosis; the mean time until MRI resolution ranged from 4-6 mo but a randomized controlled trial reported no improvement in clinical or radiographic outcome when compared to placebo. Two studies reviewed postarthroscopic cases with the largest study reporting an 80% improvement in pain and 67% radiographic resolution. One study reported three cases of secondary knee osteonecrosis in children suffering from acute lymphoblastic leukemia and only one demonstrated improvement in pain or MRI findings. Evidence from case series suggests bisphosphonates may have a role in knee osteonecrosis, but this was not validated in the single published randomized controlled trial, which had several important limitations. The lack of high-quality evidence necessitates further robust research to evaluate if bisphosphonates are an efficacious treatment modality.