Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association · 2002
The incidence and outcome of patella fractures after anterior cruciate ligament reconstruction.
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Stein Drew A, Hunt Stephen A, Rosen Jeffrey E, Sherman Orrin H
Аннотация
PURPOSE: The study was performed to determine the incidence and eventual outcome of patella fractures after anterior cruciate ligament (ACL) reconstructions using bone-patella tendon-bone autograft.
TYPE OF STUDY: Retrospective review.
METHODS: Between 1989 to 1999, 618 consecutive primary, single-incision bone-patella tendon-bone autograft ACL reconstructive procedures were performed by 3 surgeons at our institution. Of this group, 8 (1.3%) had postoperative patella fracture of the donor knee. The charts of these patients were retrospectively reviewed, and patients were followed with physical examination and outcome questionnaires.
RESULTS: The patella fractures occurred at a mean of 57 days after the ACL reconstruction (range, 24-121 days). Five patients sustained indirect trauma, whereas 3 experienced direct trauma. Three patients had nondisplaced transverse fractures treated nonoperatively. Five patients had displaced fractures (3 transverse and 2 Y-shaped) requiring surgical intervention. All 8 patients have full flexion when compared with their opposite knee. Two patients did not regain 5 degrees of hyperextension but were not symptomatic. The mean length of follow-up for the questionnaire was 4 years (range, 1.5 to 6.5 years). The mean score on the Lysholm knee questionnaire was 89.6 (range, 77-98). The mean Single Assessment Numeric Evaluation score was 85.8 (range, 50-100).
CONCLUSIONS: Most cases of postoperative patella fractures, in our experience, have caused minor changes postoperatively and no differences in the outcome of these patients. Seventy-five percent of our patients had excellent or good Lysholm scores. This study confirms previous reports in the literature that observed minimal residual sequelae from postoperative patella fractures after ACL reconstruction with bone-patella tendon-bone autograft.
TYPE OF STUDY: Retrospective review.
METHODS: Between 1989 to 1999, 618 consecutive primary, single-incision bone-patella tendon-bone autograft ACL reconstructive procedures were performed by 3 surgeons at our institution. Of this group, 8 (1.3%) had postoperative patella fracture of the donor knee. The charts of these patients were retrospectively reviewed, and patients were followed with physical examination and outcome questionnaires.
RESULTS: The patella fractures occurred at a mean of 57 days after the ACL reconstruction (range, 24-121 days). Five patients sustained indirect trauma, whereas 3 experienced direct trauma. Three patients had nondisplaced transverse fractures treated nonoperatively. Five patients had displaced fractures (3 transverse and 2 Y-shaped) requiring surgical intervention. All 8 patients have full flexion when compared with their opposite knee. Two patients did not regain 5 degrees of hyperextension but were not symptomatic. The mean length of follow-up for the questionnaire was 4 years (range, 1.5 to 6.5 years). The mean score on the Lysholm knee questionnaire was 89.6 (range, 77-98). The mean Single Assessment Numeric Evaluation score was 85.8 (range, 50-100).
CONCLUSIONS: Most cases of postoperative patella fractures, in our experience, have caused minor changes postoperatively and no differences in the outcome of these patients. Seventy-five percent of our patients had excellent or good Lysholm scores. This study confirms previous reports in the literature that observed minimal residual sequelae from postoperative patella fractures after ACL reconstruction with bone-patella tendon-bone autograft.