While surgeons prefer internal fixation for younger patients and arthroplasty for older patients, they disagree about the optimal approach to the management of patients between sixty and eighty years old with a displaced fracture and active patients with a Garden type-III fracture. Surgeons also disagree on the optimal implants for internal fixation or arthroplasty.
BackgroundThe outcome after displaced intra-articular calcaneal fractures is influenced by the condition of the surrounding soft tissues. To avoid secondary soft tissue complications after surgical treatment, several less-invasive procedures for reduction and fixation have been introduced. The percutaneous technique according to Forgon and Zadravecz is suitable for all types of displaced intra-articular calcaneal fractures and was therefore introduced in our clinic. The aim of this study was to evaluate the long-term outcome of percutaneous treatment according to Forgon and Zadravecz in patients with displaced intra-articular calcaneal fractures.MethodsA cohort of patients with displaced intra-articular calcaneal fractures treated with percutaneous surgery was retrospectively defined. Clinical outcome was evaluated by standardized physical examination, radiographs, three published outcome scores, and a visual analogue scale of patient satisfaction.ResultsFifty patients with 61 calcaneal fractures were included. After a mean follow-up period of 35 months, the mean values of the Maryland foot score, the Creighton-Nebraska score, and the American Orthopaedic Foot and Ankle Society score were 79, 76, and 83 points out of 100, respectively. The average visual analogue scale was 7.2 points out of 10. The average range of motion of the ankle joint was 90% of normal and subtalar joint movements were almost 70% compared with the healthy side or normal values. Superficial wound complications occurred in seven cases (11%) and deep infections in two (3%). A secondary arthrodesis of the subtalar joint was performed in five patients and was scheduled in four patients (15%).ConclusionsCompared with the outcome of historic controls from randomized trials and meta-analyses, this study indicates favorable results for the percutaneous technique compared with the open technique. Despite similar rates of postoperative infection and secondary arthrodesis, the total outcome scores and preserved subtalar motion are overall good to excellent.
Summary
Background
Reoperation rates are high after surgery for hip fractures. We investigated the effect of a sliding hip screw versus cancellous screws on the risk of reoperation and other key outcomes.
Methods
For this international, multicentre, allocation concealed randomised controlled trial, we enrolled patients aged 50 years or older with a low-energy hip fracture requiring fracture fixation from 81 clinical centres in eight countries. Patients were assigned by minimisation with a centralised computer system to receive a single large-diameter screw with a side-plate (sliding hip screw) or the present standard of care, multiple small-diameter cancellous screws. Surgeons and patients were not blinded but the data analyst, while doing the analyses, remained blinded to treatment groups. The primary outcome was hip reoperation within 24 months after initial surgery to promote fracture healing, relieve pain, treat infection, or improve function. Analyses followed the intention-to-treat principle. This study was registered with ClinicalTrials.gov, number NCT00761813.
Findings
Between March 3, 2008, and March 31, 2014, we randomly assigned 1108 patients to receive a sliding hip screw (n=557) or cancellous screws (n=551). Reoperations within 24 months did not differ by type of surgical fixation in those included in the primary analysis: 107 (20%) of 542 patients in the sliding hip screw group versus 117 (22%) of 537 patients in the cancellous screws group (hazard ratio [HR] 0.83, 95% CI 0.63–1.09; p=0.18). Avascular necrosis was more common in the sliding hip screw group than in the cancellous screws group (50 patients [9%] vs 28 patients [5%]; HR 1.91, 1.06–3.44; p=0.0319). However, no significant difference was found between the number of medically related adverse events between groups (p=0.82; appendix); these events included pulmonary embolism (two patients [<1%] vs four [1%] patients; p=0.41) and sepsis (seven [1%] vs six [1%]; p=0.79).
Interpretation
In terms of reoperation rates the sliding hip screw shows no advantage, but some groups of patients (smokers and those with displaced or base of neck fractures) might do better with a sliding hip screw than with cancellous screws.
Funding
National Institutes of Health, Canadian Institutes of Health Research, Stichting NutsOhra, Netherlands Organisation for Health Research and Development, Physicians’ Services Incorporated.
Joint congruity with or without fixation was a significant factor influencing prognosis. Congruity should be achieved for fragments >or= 10% of the tibial articular surface.
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