Aims and objectives
There are several theories about the multifactorial causes of patellofemoral pain syndrome (PFPS).
Malalignment in the lower extremity,
Abnormal patellar tracking quadriceps muscle weakness,
especially vastus medialis obliqus,
can be effective in creating PFPS through applying dynamic imbalance in knee extensor mechanism.
Unfortunately,
the underlying factors in the development of this disorder have not yet been well known [2].
Tibial tuberosity-trochlear groove distance (TT-TGD) measurements play a decisive role in evaluating patellofemoral joint disorders.
The increase in the distance indirectly indicates increase in lateral pull...
Methods and materials
This prospective case-control study measured TT-TGD in patients with isolated patellofemoral pain syndrome referring to radiology and orthopedic departments of Shariati Hospital (affiliated to Tehran University of Medical Sciences).
A total of 100 cases participated were divided into case (n=53) and control (n=47) groups.
The Patients in case group were selected from those with bone maturity (growth plate closure) and complain of pain in patellofemoral region for at least 6 months.
Patients were excluded from the study in cases of a history of major knee...
Results
A total of 100 subjects (53 cases and 47 controls were) enrolled in the study.
The mean age among patients and controls were 35.2±7 and 31.9±8.1 years,
respectively (P=0.035).
The mean weight was 73.2±14.2 Kg in patients and 73.7±11.1 Kg in controls (P=0.84).
The mean BMI was 25.4±4.8 in patients and 24.1±4.1 in controls (P=0.14) [TABLE 1].
The mean TT-TGD was 12.3±3.3 mm (range:3-20) in patients and 9.3±2.4 mm (range:3-13) in controls (P<0.001)[Chart 1].
The TT-TGD was ≤13 mm in 34 patients (64.2%) and >13...
Conclusion
In a study recently conducted by Carlson et al,
TT-TGD was measured in patients with PFPS by MRI.
In this study,
the mean TT-TGD was higher in the patients group than in the control group.
Also,
30% of the patient group had TT-TGD higher than 15 mm (19).
In another study conducted by Wittstein et al with the aid of MRI,
it was shown that TT-TGD in the PFPS group was higher than that of the healthy group.
The findings were consistent with our study...
Personal information
Leila Aghaghazvini MD Associated professor,
Department of radiology,
Shariati hospital,
Tehran University of Medical Sciences,
Tehran,
Iran
Mohammadnaghi Tahmasbi MD Professor ,
Department of Orthopedi,
Shariati hospital,
Tehran University of Medical Sciences,
Tehran,
Iran
Hossein Sheidaee MD,
Resident,
Department of radiology,
Shariati hospital,
Tehran University of Medical Sciences,
Tehran,
Iran
Shahin Mirkarimi MD,
Fellowship of knee,
Department of Orthopedi ,
Shariati hospital,
Tehran University of Medical Sciences,
Tehran,
Iran
Madjid Shakiba MD,
Methodologist, Advanced diagnostic and interventional research center,
Tehran,
Iran
References
FA
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Powers CM ,
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Manchester.
Part 1: Terminology,
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clinical examination,
natural history,
patellofemoral osteoarthritis and patient-reported outcome measures.
Br J Sports Med 2016;50(14):839-43.
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Powers CM,
Bolgla LA,
Callaghan MJ,
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Sheehan FT. Patellofemoral pain: proximal,
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Fucentese SF,
Pfirrmann CW Imaging of...