Pseudoparalysis in the Pavlik Harness: beware septic arthritis

Stevenson, A.J., Shelwalle, S.B. and Clarke, N.M.P. (2007) Pseudoparalysis in the Pavlik Harness: beware septic arthritis. Journal of Children's Orthopaedics, 1 (5), 287-289. (doi:10.1007/s11832-007-0052-2).

Abstract

Purpose Pseudoparalysis of the leg occurring during use of the Pavlik Harness (PH) is a seldom-reported condition. Three cases of pseudoparalysis are reported here to illustrate the need for careful assessment of this condition. Methods A series of patients using the PH and presenting with pseudoparalysis was compiled following a retrospective review of case notes. Results In 3 cases, infants treated for developmental dysplasia of the hip using the PH were found to have developed a pseudoparalysis of the affected limb. All presented with similar signs, with the infant being systemically irritable and reluctant to move the limb. In 2 of the cases, this was related to the harness—its removal resulted in recovery of the affected limb. The third case was proven to be septic arthritis, unrelated to the harness, and treatment by means of arthrotomy, intravenous antibiotics and use of the PH for hip stabilisation was used successfully. In the first two cases, the pseudoparalysis was noticed at routine review clinic, and clinical assessment, ultrasound scan and blood tests were performed. The case of septic arthritis was similarly assessed, following referral by paediatric physicians. Conclusion Pseudoparalysis in the PH is a rare event and requires careful investigation.

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