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Q In patients who have had uncemented primary total hip arthroplasty (THA), does removal of several postoperative functional restrictions (PFR) reduce the risk of postoperative dislocation?
METHODS
Design:
randomised controlled trial.
Allocation:
not concealed.
Blinding:
unblinded.
Follow up period:
⩾6 months
Setting:
a university hospital in Philadelphia, Pennsylvania, USA.
Patients:
265 patients (303 hips) (mean age 58 y, 52% men) who received uncemented primary THA through an anterolateral approach. Exclusion criteria included previous surgery on the ipsilateral hip, hyperflexibility syndromes, and neuromuscular compromise (eg, Alzheimer’s or Parkinson’s disease).
Intervention:
PFR (n = 152) or no PFR (n = 151). All patients were expected to limit the range of motion of the hip for the first 6 weeks to <90° of flexion and 45° of external and internal rotation, and to avoid …
Footnotes
For correspondence: Dr J Parvizi, Rothman Institute, Philadelphia, PA, USA. parvjaol.com
Source of funding: no external funding.