Purpose
To assess the correlation between anthropometric parameters and sizes ofankle tendons commonly used for surgical interventions to understand if specific MRImeasurements could be tendon reliable predictors of tendons size.
Tendon transfer is a commonly used surgical procedure to correct lateral ankle instability secondary to spring ligament rupture and to correct foot deformities.
Several essential factors must be taken into account to assure adequate motor power for the transferred tendon,
including integrity of the tendon and adequate length of the donor tendon (Fig. 1).
Flexor digitorum...
Methods and Materials
The study was submitted to the institutional ethics review board and approval was obtained.
113 MR imaging studies of the ankle from 113 different patients (57 were males and 56 women,
with a mean age at time of imaging of 42 ± 18 years) were selected from our institution’s database and retrospectively examined.
Exclusion criteria were: previous ankle surgery,
history of ankle fractures or trauma,
immature skeletal,
tendon pathology or pain.
MR images of the ankle were obtained in our 1.5T units using a circular...
Results
The mean measurements obtained are represented in the table (Fig. 4).
All MRI measurements were significantly higher in males than in females (p≤0.12),
except for PLT (p=0.78) (Fig. 5).
All tendon sizes were significantly correlated with weight and TW (r≥.228 and p≤.047).
Other significant correlations were: height with AT and ATT (r≥.226 and p≤.066),
BMI with PTT and ATT (r≥.215 and p≤.163),
ankle circumference with AT,
PL and ATT (r≥.218 and p≤.061),
ID with PTT,
FDL and PL (r≥.248 and p≤.001).
Conclusion
Our results indicate that there is a positive correlation between weight,
TW and tendon diameter.
In our sample all males had larger ankle tendon measurements,
a finding most likely related with the fact that male subjects had larger height and weight.
These data are helpful for radiologists and orthopedic surgeons who use healthy tendons for surgical stabilization procedures.
In particular they can be referral measurements in the preoperative planning in order to identify the best graft and tendon size.
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