Hemi-Hamate Arthroplasty Provides Functional Reconstruction of Acute and Chronic Proximal Interphalangeal Fracture–Dislocations

Delayed treatment of unstable proximal interphalangeal joint fracture-dislocations with a dynamic external fixator

“…As injury to the PIPJ may not necessarily cause much pain, particularly with immobilization, patients may not seek medical treatment if this is not conveniently available. In these circumstances, malunion at the articular surface of the PIPJ can theoretically impair outcomes with the requirement for a more invasive procedure, such as open reduction and internal fixation (ORIF) 9 , volar plate arthroplasty 10 or hemi-hamate arthroplasty, which has Page 7 of 33 A c c e p t e d M a n u s c r i p t been used with success in delayed treatment of patients with dorsal PIPJ fracture-dislocations and fractures involving the palmar lip of the base of the middle phalanx 11,12 . Hemi-hamate arthroplasty is a procedure that can result in good results.…”

A simple pre-operative imaging method to assess donor and recipient anatomy in hemi-hamate arthroplasty for proximal interphalangeal joint reconstruction

“…HHA is a complex surgical technique that is associated with highly-variable surgical outcomes [1,2,7,8,13,14]. The most notable issue with this procedure is the high rate of post-traumatic arthritis found at the reconstructed PIP joints at long-term follow up [1,2].…”

“…The most notable issue with this procedure is the high rate of post-traumatic arthritis found at the reconstructed PIP joints at long-term follow up [1,2]. Despite these findings, no report has rigorously studied the factors associated with successful grafts compared to those that develop posttraumatic joint disease.…”

“…Our aims are threefold: (1) to identify a series of highquality, upper extremity CT scans that are representative of normal hand anatomy; (2) to obtain measurements of the hamate and the four potential recipient sites for HHA graft using our novel method; and (3) to compare which recipient site is most ''consistent'' with hamate anatomical morphology.…”

Biomechanical Characteristics of Hemi-Hamate Reconstruction Versus Volar Plate Arthroplasty in the Treatment of Dorsal Fracture Dislocations of the Proximal Interphalangeal Joint

“…10e13 In the subacute or chronic setting the treatment options narrow considerably and include osteotomy with open reduction and internal fixation, PIP joint arthrodesis or arthroplasty, VPA, and hemi-hamate arthroplasty (HHA). 7,12,14 Much of the relevant literature emphasizes the primary need to establish a concentric reduction of the PIP joint. To achieve this goal in the subacute and chronic injury setting, several groups have reported on their experiences with VPA, and more recently, HHA.…”