Scaphoid and Lunate Dislocation as a Unit—A Rare Variant of Perilunate Injury: Case Report and Literature Review for Management Recommendations
Ajin Edwin, Vigneswaran Varadharajan, Praveen Bhardwaj, Shanmuganathan Raja Sabapathy
Keywords :
Case report, Carpal dislocation, Perilunate dislocation, Simultaneous scaphoid and lunate dislocation, Unitary scaphoid and lunate dislocation, Wrist trauma
Citation Information :
Edwin A, Varadharajan V, Bhardwaj P, Sabapathy SR. Scaphoid and Lunate Dislocation as a Unit—A Rare Variant of Perilunate Injury: Case Report and Literature Review for Management Recommendations. 2024; 6 (2):193-196.
Background: Volar dislocation of the scaphoid and lunate represents a rare and complex wrist injury, with significant diagnostic and therapeutic implications.
Case description: We report a unique case involving a 50-year-old male who experienced a high-energy motorbike accident, leading to acute pain and swelling in his left wrist. His clinical examination was significant for localized swelling and tenderness, wrist deformity, and restricted painful range of motion, but without sensory loss in the median and ulnar nerve distribution areas. Radiographic evaluations including X-rays, revealed a rare volar dislocation of the scaphoid and lunate. The patient was managed by open reduction of the scapholunate (SL) dislocation and K-wire stabilization of the intercarpal and radiocarpal joints, and it resulted in a good functional outcome.
Conclusion: In summary, this case presents a rare scenario of volar SL dislocation as a unit, emphasizing the importance of meticulous evaluation and customized surgical planning.
Clinical significance: This case underscores the importance of early identification and management of such rare injuries to maximize patient outcomes and minimize potential complications such as persistent carpal instability, reduced wrist movements, and early wrist arthritis.
Taleisnik J, Malerich M, Prietto M. Palmar carpal instability secondary to dislocation of scaphoid and lunate: report of case and review of the literature. J Hand Surg Am 1982;7(6):606–612. DOI: 10.1016/s0363-5023(82)80111-1
Raemisch ME, Rotman MB. Palmar dislocation of the scaphoid and lunate as a unit. Orthopedics 2004;27(11):1199–1201. DOI: 10.3928/0147-7447-20041101-20
Herzberg G, Comtet JJ, Linscheid RL, et al. Perilunate dislocations and fracture-dislocations: a multicenter study. J Hand Surg Am 1993;18(5):768–779. DOI: 10.1016/0363-5023(93)90041-Z
Idrissi KK, Galiua F. Palmar dislocation of scaphoid and lunate. Clin Pract 2011;1(4):e87. DOI: 10.4081/cp.2011.e87
Afshar A, Tabrizi A. Palmar-divergent dislocation of the scaphoid and lunate: a case report. Trauma Month 2021;26(6):335–339. DOI: 10.30491/tm.2021.287050.1302
Domeshek LF, Harenberg PS, Rineer CA, et al. Total scapholunate dislocation with complete scaphoid extrusion: case report. J Hand Surg Am 2010;35(1):69–71. DOI: 10.1016/j.jhsa.2009.09.015
Hessert W. XII. Dislocation of individual carpal bones, with report of a case of luxation of the scaphoid and semilunar. Ann Surg 1903;37(3):402–414.
Cambell RD Jr, Lance EM, Yeoh CB. Lunate and perilunar dislocations. J Bone Joint Surg Br 1964;46:55–72.
Dunn AW. Fractures and dislocations of the carpus. Surg Clin North Am 1972;52(6):1513–1538. DOI: 10.1016/s0039-6109(16)39895-4
Küpfer K. Palmar dislocation of scaphoid and lunate as a unit: case report with special reference to carpal instability and treatment. J Hand Surg Am 1986;11(1):130–134. DOI: 10.1016/s0363-5023(86)80120-4
Coll GA. Palmar dislocation of the scaphoid and lunate. J Hand Surg Am 1987;12(3):476–480. DOI: 10.1016/s0363-5023(87)80028-x
Sarrafian SK, Breihan JH. Palmar dislocation of scaphoid and lunate as a unit. J Hand Surg Am 1990;15(1):134–139. DOI: 10.1016/s0363-5023(09)91121-2
Mayfield JK, Johnson RP, Kilcoyne RK. Carpal dislocations: pathomechanics and progressive perilunar instability. J Hand Surg Am 1980;5(3):226–241. DOI: 10.1016/s0363-5023(80)80007-4