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  • Title: Mid-term clinical and radiographic outcomes of perilunate injuries treated with open reduction and internal fixation.
    Author: Çolak İ, Bulut G, Bekler Hİ, Çeçen GS, Gülabi D.
    Journal: Acta Orthop Traumatol Turc; 2021 Jan; 55(1):57-61. PubMed ID: 33650513.
    Abstract:
    OBJECTIVE: This study aimed to present the mid-term clinical and radiographic outcomes of patients with perilunate injuries treated with open reduction and internal fixation (ORIF). METHODS: Patients who underwent ORIF due to perilunate injuries from 2004 to 2015 were retrospectively reviewed. Surgery was mostly performed using a standard dorsal approach. Each injury was graded as per Mayfield staging. At the final follow-up, pain intensity was evaluated using a 10-cm visual analog scale (VAS). Wrist and elbow range of motion, handgrip and pinch strength, Modified Mayo Wrist Scores, and the disabilities of the arm, shoulder, and hand (DASH) scores were measured. On plain radiographic examination, the scapholunate (SL) angle, SL interval, carpal height, and continuity of Gilula arcs were evaluated. The presence of arthritis was also assessed using the Herzberg classification. RESULTS: In total, 26 male patients (27 wrists) who met the inclusion criteria were included in the study. The mean age was 40 years (range: 20-58); the mean follow-up was 45 months (range: 16-96). Most of the injuries were fracture-dislocations (n=20; 71.4%). According to Mayfield staging, 7 wrists were grade 3, and 20 wrists were grade 4. According to Herzberg staging, 11 (40.7%) patients were stage 2a. The mean VAS was 2.3 (range: 0-5) at rest and 3.3 (range: 0-7) during activity. The mean wrist flexion and extension were 50° (range: 21-80°; 73.5% of the unaffected side) and 45.1° (range: 20-74°; 70.9% of the unaffected side), respectively. The mean radial and ulnar deviation were 14.6° (range: 6-25°; 63.6% of the unaffected side) and 22.3° (range: 5-40°; 64.7% of the unaffected side), respectively. Grip and pinch strength were 57.6 kg (range: 15-106; 65.5% of the unaffected side) and 18.6 kg (range: 8-28; 78.2% of the unaffected side), respectively. The mean Mayo score was 63.3 (range: 20-90), and the DASH score was 24.1±25.2. The mean SL angle was 61.6° (range: 40-83). There was 1 wrist with a pathological SL interval, 11 wrists with dorsal intercalated segmental instability, and 3 wrists with fractures of the Gilula arcs. The mean carpal height was within the normal range. CONCLUSION: In the treatment of perilunate injuries, satisfactory clinical and radiographic outcomes can be expected from ORIF at mid-term follow-up. LEVEL OF EVIDENCE: Level IV, Therapeutic Study.
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