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[Isolated hip dislocation of traumatic origin]
S R Schwarzkopf1, K E Dreinhöfer, N P Haas
1Orthopädische Abteilung des Rehabilitationskrankenhauses, Orthopädische Klinik, Universität Ulm.
Insights
Early reduction of traumatic hip dislocation generally yields excellent outcomes. However, this study found that dislocation direction, injury severity, and patient age significantly impact final results, even with prompt treatment.
Area of Science:
- Orthopedic Surgery
- Traumatology
Context:
- Isolated traumatic hip dislocation is a significant orthopedic emergency.
- Early reduction (within 6 hours) is traditionally associated with favorable outcomes.
Purpose:
- To evaluate the long-term outcomes of isolated traumatic hip dislocations treated with early closed reduction.
- To identify prognostic factors influencing the final results of hip dislocation treatment.
Summary:
- Forty-nine patients with hip dislocations, mostly from traffic accidents, underwent closed reduction within 3 hours and early mobilization.
- Despite early intervention, only 9/12 anterior and 14/30 posterior dislocations achieved excellent/good results (Thompson and Epstein classification).
- Radiological findings included partial necrosis (2 patients), mild/moderate arthrosis (9 patients), and heterotopic ossifications (4 patients).
Impact:
- The direction of dislocation, overall injury severity, and patient age are critical prognostic factors, challenging the assumption of universally excellent outcomes with early reduction.
- Findings suggest a need for individualized treatment and prognostic assessment in traumatic hip dislocations.
- Highlights the importance of considering multiple factors beyond reduction time for optimal patient outcomes.
Abstract:
The final outcome following isolated traumatic dislocation of the hip that is reduced within 6 h is generally believed to be excellent. Forty-nine patients with an isolated dislocation of the hip were treated between 1974 and 1989 at the Department of Traumatology of the Hannover Medical School. The majority of patients were involved in traffic accidents, and 42 had associated injuries. All dislocations primarily treated at our hospital were reduced by closed methods within 3 h, (average 85 min, range 10-180 min), followed by early mobilisation with partial weight-bearing for 2-3 weeks. 42 patients were evaluated after an average follow-up period of 7.7 years. Radiological signs of partial necrosis were seen in two patients. Mild arthrosis was found in seven patients, moderate degeneration in two and heterotopic ossifications in four patients (two Brooker II, one Brooker III, one hip ankylosed). Twenty-nine of 33 MRI examinations were normal. Despite early reduction only 9/12 anterior and 14/30 posterior dislocations revealed excellent and good results according to the Thompson and Epstein classification. According to the present study the important prognostic factors are the direction of dislocation, the overall injury severity and the age at the time of injury.