Few studies have examined the socio-economic impact of complications requiring surgery following initial surgical management of proximal femoral fractures. Our hypothesis was that there would be a significant difference in the cost, mortality rate and ultimate discharge location in patients requiring further surgery after their index procedure for a proximal femoral fracture compared to a matched control group.

This was a retrospective matched cohort study of all proximal femoral fractures presenting to the John Radcliffe Hospital over a five year period. Data had been collected prospectively in a standard manner. The total cost of treatment for each patient was calculated by separating the treatment costs into its components. Mortality data was retrieved from the Office of National Statistics and data were analysed using SPSS statistics software, with a p value of less than 0.05 considered significant.

There were 2360 proximal femoral fractures in 2257 patients. Of this group, 144 (6.1%) required further surgical intervention due to a complication of the primary procedure. Mean age at time of fracture was 82.59 years; 81.6% women. Mean cost of treatment in those cases with complications was £18,731 compared to £8,575 for uncomplicated cases (p=0.00) with a mean length of stay of 62.8 days and 32.7 days respectively (p=0.00). Mortality probability of cases was significantly higher than the control group with a mean survival of 209 days versus 496 days for controls (p= 0.035) and patients with complications were statistically less likely to return to their own home (p< 0.01).

The socio-economic impact of complications following treatment of proximal femoral fractures is important in this current economic climate. Greater awareness and understanding are warranted. Recognition of potential risk factors for complications may allow earlier detection of potential cases and thereby reduce their number and in turn the socioeconomic cost.

Purpose

To identify the incidence and reasons for revision of the Oxford prosthesis (OXF) in New Zealand.

The patterns of nerve and associated skeletal injury were reviewed in 84 patients referred to the brachial plexus service who had damage predominantly to the infraclavicular brachial plexus and its branches.

Patients fell into four categories: 1. Anterior glenohumeral dislocation (46 cases); 2. ‘Occult’ shoulder dislocation or scapular fracture (17 cases); 3. Humeral neck fracture (11 cases); 4. Arm hyperextension (9 cases)

The axillary (38/46) and ulnar (36/46) nerves were most commonly injured as a result of glenohumeral dislocation. The axillary nerve was ruptured in only 2 patients who had suffered high energy trauma. Ulnar nerve recovery was often incomplete. ‘Occult’ dislocation refers to patients who had no recorded shoulder dislocation but the history was suggestive that dislocation had occurred with spontaneous reduction. These patients and those with scapular fractures had a similar pattern of nerve involvement to those with known dislocation, but the axillary nerve was ruptured in 11 of 17 cases.

In cases of humeral neck fracture, nerve injury resulted from medial displacement of the humeral shaft. Surgery was performed in 7 cases to reduce and fix the fracture.

Arm hyperextension cases were characterised by injury to the musculocutaneous nerve, with the nerve being ruptured in 8 of 9. Five had humeral shaft fracture or elbow dislocation. There was variable involvement of the median and radial nerves, with the ulnar nerve being least affected.

Most cases of infraclavicular brachial plexus injury associated with shoulder dislocation can be managed without operation. Early nerve exploration and repair should be considered for:

Axillary nerve palsy without recorded shoulder dislocation or in association with fracture of the scapula.

Urgent operation is necessary for nerve injury resulting from fracture of the humeral neck to relieve ongoing pressure on the nerves.