Proximal femur fractures treatment can involve anterograde nailing with a single or double cephalic screw. An undesirable failure for this fixation is screw cut-out. In a single-screw nail, a tip-apex distance (TAD) greater than 25 mm has been associated with an increased risk of cut-out. The aim of the study was to examine the role of TAD as a risk factor in a cephalic double-screw nail. A retrospective study was conducted on 112 patients treated for intertrochanteric femur fracture with a double proximal screw nail (Endovis BA2; EBA2) from January to September 2021. The analyzed variables were age, sex, BMI, comorbidities, fracture type, side, time of surgery, quality of reduction, pre-existing therapy with bisphosphonate for osteoporosis, screw placement in two different views, and TAD. The last follow-up was at 12 months. Logistic regression was used to study the potential factors of screw cut-out, and receiver operating characteristic curve to identify the threshold value.Aims
Methods
There is no absolute method of evaluating healing
of a fracture of the tibial shaft. In this study we sought to validate a
new clinical method based on the systematic observation of gait,
first by assessing the degree of agreement between three independent
observers regarding the gait score for a given patient, and secondly
by determining how such a score might predict healing of a fracture. We used a method of evaluating gait to assess 33 patients (29
men and four women, with a mean age of 29 years (15 to 62)) who
had sustained an isolated fracture of the tibial shaft and had been
treated with a locked intramedullary nail. There were 15 closed
and 18 open fractures (three Gustilo and Anderson grade I, seven
grade II, seven grade IIIA and one grade IIIB). Assessment was carried
out three and six months post-operatively using videos taken with
a digital camera. Gait was graded on a scale ranging from 1 (extreme
difficulty) to 4 (normal gait). Bivariate analysis included analysis
of variance to determine whether the gait score statistically correlated
with previously validated and standardised scores of clinical status
and radiological evidence of union. An association was found between the pattern of gait and all
the other variables. Improvement in gait was associated with the
absence of pain on weight-bearing, reduced tenderness over the fracture,
a higher Radiographic Union Scale in Tibial Fractures score, and
improved functional status, measured using the Brazilian version
of the Short Musculoskeletal Function Assessment questionnaire (all
p <
0.001). Although further study is needed, the analysis of
gait in this way may prove to be a useful clinical tool.
