The Knee · 2019
Tibial tubercle proximalization as quadriceps lengthening in treating severe habitual patellar dislocation in adults.
СтатьяНазвание и аннотация: Перевод в очереди
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Song Guan-Yang, Zhang Hui, Zhang Jin, Zhang Zhi-Jun, Feng Hua
Аннотация
BACKGROUND: To describe a novel 'four-in-one' procedure - including tibial tubercle proximalization, extensive lateral release, tibial tubercle medialization, and medial patellofemoral ligament reconstruction - for treating severe habitual patellar dislocation (HPD) in adults, and to report its early clinical outcomes.
METHODS: Thirteen patients (13 knees) with severe primary HPD received this procedure. Results of the physical examinations, including apprehension tests and patellar tracking throughout full range of motion, were recorded pre-operatively and at final follow-up. Radiological assessments included standard anteroposterior view, true lateral view at 30° knee flexion, axial views of the patellofemoral joint at both 30° and maximum angle of knee flexion, and computed tomography scans at full knee extension pre-operatively and at final follow-up. Subjective patellofemoral functions were evaluated with the Kujala functional score before the index procedure and at final follow-up visit.
RESULTS: All 13 patients were followed for an average period of 35.5 months (range, 25-49). After the index 'four-in-one' procedure no patient reported reoccurrence of patellar dislocation at the final follow-up visit. Radiographically, there was a statistically significant improvement in the congruence angle from 75.2 ± 16.3° pre-operatively to -7.2 ± 5.4° postoperatively (P < 0.01) and in the lateral patellofemoral angle from -66.3 ± 8.3° pre-operatively to 6.3 ± 2.6° postoperatively (P < 0.01). The average pre-operative Kujala functional score was 41.4 and average postoperative score was 94.9 (P < 0.05).
CONCLUSION: The novel 'four-in-one' procedure effectively treated HPD in adults with severe quadriceps contracture.
METHODS: Thirteen patients (13 knees) with severe primary HPD received this procedure. Results of the physical examinations, including apprehension tests and patellar tracking throughout full range of motion, were recorded pre-operatively and at final follow-up. Radiological assessments included standard anteroposterior view, true lateral view at 30° knee flexion, axial views of the patellofemoral joint at both 30° and maximum angle of knee flexion, and computed tomography scans at full knee extension pre-operatively and at final follow-up. Subjective patellofemoral functions were evaluated with the Kujala functional score before the index procedure and at final follow-up visit.
RESULTS: All 13 patients were followed for an average period of 35.5 months (range, 25-49). After the index 'four-in-one' procedure no patient reported reoccurrence of patellar dislocation at the final follow-up visit. Radiographically, there was a statistically significant improvement in the congruence angle from 75.2 ± 16.3° pre-operatively to -7.2 ± 5.4° postoperatively (P < 0.01) and in the lateral patellofemoral angle from -66.3 ± 8.3° pre-operatively to 6.3 ± 2.6° postoperatively (P < 0.01). The average pre-operative Kujala functional score was 41.4 and average postoperative score was 94.9 (P < 0.05).
CONCLUSION: The novel 'four-in-one' procedure effectively treated HPD in adults with severe quadriceps contracture.