Transradial Transcapitate Perilunotriquetral Coalition Fracture Dislocation

Abstract

Perilunate fracture dislocations (PLFDs) are uncommon, usually resulting from high-energy trauma. Several classification systems describe the patterns of injury seen, but there is still significant variation and patterns of injury that do not fit within these classifications continue to be described. Carpal coalitions are rare, mostly asymptomatic, and are, as a result, usually identified incidentally. We describe the case of a transradial transcapitate PLFD in a patient with a Minnaar Type 3 lunotriquetral coalition. Radiographic, clinical, and patient-reported outcomes are reported.

When presented with a rare anatomical variation in the context of a complex injury, the importance of managing these complex injuries according to principles is highlighted.

Keywords

perilunate - coalition - lunotriquetral - fracture - dislocation

Consent Statement

Ethical committee approval was not required for this case report. Verbal consent was gained from the patient for publication of anonymized images.

Publication History

Received: 20 October 2022

Accepted: 09 May 2023

Article published online:
19 June 2023

• References

• 1 Herzberg G, Comtet JJ, Linscheid RL, Amadio PC, Cooney WP, Stalder J. Perilunate dislocations and fracture-dislocations: a multicenter study. J Hand Surg Am 1993; 18 (05) 768-779
• 2 Mayfield JK. Mechanism of carpal injuries. Clin Orthop Relat Res 1980; (149) 45-54
• 3 Herzberg G. Perilunate injuries, not dislocated (PLIND). J Wrist Surg 2013; 2 (04) 337-345
• 4 Fenton RL. The naviculo-capitate fracture syndrome. J Bone Joint Surg Am 1956; 38-A [phone]
• 5 Bain GI, McLean JM, Turner PC, Sood A, Pourgiezis N. Translunate fracture with associated perilunate injury: 3 case reports with introduction of the translunate arc concept. J Hand Surg Am 2008; 33 (10) 1770-1776
• 6 Defazio MV, Cousins BJ, Miversuski Jr RA, Cardoso R. Carpal coalition: a review of current knowledge and report of a single institution's experience with asymptomatic intercarpal fusion. [published correction appears in Hand (N Y). 2013 Jun;8(2):245] Hand (N Y) 2013; 8 (02) 157-163
• 7 Ritt MJ, Maas M, Bos KE. Minnaar type 1 symptomatic lunotriquetral coalition: a report of nine patients. J Hand Surg Am 2001; 26 (02) 261-270
• 8 Minnaar ABD. Congenital fusion of the lunate and triquetral bones in the South African Bantu. J Bone Joint Surg Br 1952; 34-B (01) 45-48
• 9 Griffin M, Roushdi I, Osagie L, Cerovac S, Umarji S. Patient-reported outcomes following surgically managed perilunate dislocation: outcomes after perilunate dislocation. Hand (N Y) 2016; 11 (01) 22-28