Fracture dislocations of the proximal interphalangeal joint

Dorsal blocking orthoses for proximal interphalangeal joint volar plate injuries: A retrospective cohort study investigating the impact of joint angle on patient outcomes

BACKGROUND

Injuries to the proximal interphalangeal joint (PIPJ) of the fingers are commonly treated in hand therapy departments. Conservative management for PIPJ volar plate injuries typically involves a dorsal blocking orthosis and flexion exercises. Historically hand therapists have placed the PIPJ in varying degrees of flexion but the optimal angle is unknown.

PURPOSE

To compare the outcomes of two treatment groups who received dorsal blocking orthoses: Those who the orthosis was positioned in neutral compared to those in 25-30° of flexion.

STUDY DESIGN

Retrospective cohort study.

METHOD

Patients treated by the hand therapy service at a major metropolitan hospital network in Melbourne, Australia, for conservative management of a PIPJ volar plate injury over a three-year period were included in our study. Data regarding patient demographics, digits affected and injury type were collected. Outcomes included presence of a fixed flexion deformity (FFD), amount of hand therapy received and total active flexion at the PIPJ.

RESULTS

One hundred and eleven participants were included in our study. The mean age was 26 and 59 (53%) were males. Seventy two (64%) participants received a dorsal blocking orthosis positioned in neutral and 39 (35%) were positioned in 25-30° flexion at the PIPJ. Participants whose orthosis was positioned at 25-30° had an average of 24 more minutes in hand therapy (which equates to approximately one appointment) compared to those whose PIPJ was positioned in neutral (p=0.006, d=0.5). Eight percent less participants developed a FFD (p = 0.24) and 13% more participants achieved full flexion (p = 0.06) in the group who received a dorsal blocking orthosis in neutral, however these results were not statistically significant.

CONCLUSION

PIPJ volar plate injures treated in an orthosis positioned in neutral required fewer hand therapy appointments. There was no statistically significant difference between groups regarding development of a FFD or full flexion.

A Review on Volar Fracture-Dislocations of the Proximal Interphalangeal Joint

Volar fracture-dislocations of the proximal interphalangeal joint are rare injuries caused by an axial force on a flexed digit resulting in an avulsion fracture of the dorsal lip of the middle phalanx with volar dislocation of the joint. This volar subtype is analogous to the more common dorsal subtype with a mirror image fracture on the dorsal lip of the middle phalanx. The main significance in this type of injury lies in the disruption of the extensor mechanism at the central slip. The goals of treatment, apart from restoring a congruent and stable joint, is to restore the extensor mechanism to prevent a boutonnière deformity. In this article, we summarise the current literature and discuss the principles for treatment of this uncommon injury. Level of Evidence: Level V (Therapeutic).

Extension block pinning for chronic volar base fractures of the middle phalanges

Due to the simplicity, low cost and benefit of avoiding long-term joint immobilization, extension block pinning could be a suitable option for treating the volar base fractures of the middle phalanges. The aim of the present study was to evaluate the outcomes of using extension block pinning in chronic volar base fractures of the middle phalanges. In total, 26 patients with chronic closed volar base fractures of the middle phalanges were included our study. The mean age was 37 years (SD 11.59), and the mean follow-up time was 35 months (SD 19.41). The mean active range of motion (ROM) after surgery was 93° (SD 12.9). There was a negative correlation between the age and the ROM of the injured proximal interphalangeal joint after surgery. ROM did not correlate with the articular surface involvement or the interval between injury and surgery. We obtained a satisfactory result from extension block pinning for volar base fractures of the proximal interphalangeal joint in patients with chronic injuries.Level of evidence: IV.

Results of an Adjustable Traction Method Using Surgical Gloves and K-Wires for the Treatment of Proximal Interphalangeal Joint Fracture Dislocation

Purpose

This study aimed to evaluate an adjustable traction method using surgical gloves and Kirschner wires (K-wires) for proximal interphalangeal (PIP) fracture dislocations and examine the association between a reduction pin and range of motion (ROM), and between subluxation immediately after removal and ROM.

Methods

Patients who underwent this surgical method for PIP joint dislocation fractures between 2003 and 2017 were included. We retrospectively investigated the postoperative results. We defined patients having surgery within 4 weeks after an injury as fresh cases and after 4 weeks as chronic cases. K-wires were inserted at the center of the proximal phalangeal head and the distal part of the middle phalanx to create a frame, and the finger of the surgical glove was used as a traction-force generator. We analyzed the association of ROM with each finger, age, presence of a reduction pin, and subluxation immediately after frame removal.

Results

Overall, 37 fingers were included (27 acute and 10 chronic). The mean age of the participants was 40.0 years (range: 13-72 years). The mean follow-up period was 10.5 months (3-47 months). The final active ROM was -4.6°/94.6° (extension/flexion) for acute cases and -27.0°/73.5° for chronic ones. Active ROM was significantly better in patients with a reduction pin than in those without it. Subluxation immediately after frame removal was not associated with postoperative active ROM. Additionally, all PIP joints with subluxation that occurred immediately after frame removal achieved good joint congruity.

Conclusions

The results of the adjustable traction method using surgical gloves and K-wires were satisfactory. Postoperative ROM did not decrease because of the additional reduction pin. Subluxation occurring immediately after frame removal did not affect the ROM, ultimately resulting in good joint congruity.

Type of study/level of evidence

Therapeutic IV.

Reconstruction of Delayed Proximal Interphalangeal Joint Fracture-Dislocation Using Hemi-Hamate Arthroplasty: A Case Report

This case report aims to delineate the clinical outcomes and technical considerations of hemi-hamate arthroplasty in the reconstruction of a delayed proximal interphalangeal (PIP) joint fracture-dislocation. It underscores the procedure's viability as a reconstructive option for complex finger injuries with delayed presentation. A 23-year-old male presented six weeks post-injury with a PIP joint fracture-dislocation of the left index finger. Traditional management options were limited due to the delayed presentation and the nature of the injury. A surgical intervention was performed using an autologous osteochondral hemi-hamate graft to reconstruct the articular surface. Herein, we describe the detailed surgical steps, postoperative care, and rehabilitation protocols. Over a five-month follow-up period, the patient demonstrated significant functional improvement. The range of motion in the PIP joint increased substantially, with a notable reduction in pain levels. Radiographic assessments showed successful graft incorporation and joint alignment. The patient reported satisfaction with the aesthetic and functional outcome, highlighting an enhanced quality of life post-surgery. Hemi-hamate arthroplasty emerges as a favorable surgical option for delayed PIP joint fracture-dislocations, offering improved articular congruity, joint stability, and functional outcomes. This case contributes to the growing body of evidence supporting the procedure's effectiveness and underscores the importance of considering innovative approaches in complex hand injuries.

Variable Adjustment Methods for Hemihamate Autograft Arthroplasty in Proximal Interphalangeal Joint Fracture/Dislocations: A Surgical Technique Revisited and Case Series

ABSTRACT

Proximal interphalangeal joint fracture/dislocations, even after surgical correction, often lead to long-term complications including posttraumatic arthritis, prolonged joint stiffness, and chronic joint instability. A wide range of surgical techniques has been devised to resolve this issue, but none has been promising enough. Despite this circumstance, arthroplasty using a hemihamate autograft of size and contour that match the middle phalangeal base has progressed into one of more acceptable methods that provide both articular congruency and osseous stability. In this article, we introduce various types of proximal interphalangeal joint fracture/dislocations and individualized surgical approach using hemihamate autograft and lag screw and/or hook plate as fixation methods.

Innovations in Small Joint Arthroscopy

With advancements in surgical instrumentation and techniques, the role of arthroscopic and arthroscopic-assisted surgical procedures is ever-growing. Arthroscopy offers direct, magnified visualization of pathology and reductions and is more accurate than relying on intraoperative fluoroscopy alone. It also minimizes soft tissue stripping, which is of particular importance to smaller fracture fragments whose vascularity is precarious and can be injured through open approaches.

Proximal Interphalangeal Joint Fractures: Various Approaches to Fixation

There are numerous operative and nonoperative options for the management of proximal interphalangeal joint fractures and fracture dislocations. The treatment of choice should be guided by the fracture pattern and joint stability. The authors highlight a contemporary option for open reduction and internal fixation techniques, but all the techniques presented are viable options under the right circumstances. It is also important to set patient expectations as most of these patients will note post-injury stiffness and potential functional limitations.

Fracture-Dislocation Dorsal of the Proximal Interphalangeal Joint: A Case Report and Focus on Volar Plate Injuries

The proximal interphalangeal (PIP) joint is the articulating joint between the proximal and middle phalanges of the fingers. A dorsal fracture-dislocation of the PIP joint of the fingers with volar plate injuries is an uncommon injury. Few cases have been published in the literature. In this article, we report the case of a subluxation fracture of the PIP joint in a 27-year-old male patient, without pathological history, a manual worker, right-handed, diagnosed 28 days after the injury. The treatment was surgical with open reduction and fixation of the fragment of the base of P2 with osteosutures. The functional results after three months were satisfactory with good sagittal and frontal joint stability and active flexion of the PIP joint at 95° and active extension at 0°. The control radiographs confirm the consolidation of the osteochondral fragment of the base of P2. The patient returned to his usual activities without pain.

Press-Fit Hemihamate Arthroplasty for the Proximal Interphalangeal Joint

Background  Chronic proximal interphalangeal joint fracture-dislocations with articular malunion are complex injuries. Hemihamate arthroplasty is an established technique for the management of both acute and chronic cases but is associated with several complications. We present the clinical experience of modified press-fit hemihamate arthroplasty. Description of Technique  The base of the middle phalanx was exposed from the volar side, and the cartilage defect of the proximal interphalangeal joint (PIPJ) was evaluated in the hyperextended position. A bone hole was created slightly toward the volar side to recreate the curvature of the PIPJ. The hemihamate osteochondral graft was harvested and fixed into the bone hole in a press-fit manner without using a screw. The volar plate and flexor tendon sheath were then reattached. Patients and Methods  The study included three patients with chronic dorsal fracture-dislocations of the PIPJ. All patients were treated for >6 weeks after the injury (average 11 weeks). Results  The average total arc of motion of the affected joint improved from 38 degrees before surgery to 80 degrees after surgery. Radiographically, bone union and congruity of the joint surface were achieved in all the patients. None of the treated patients complained of resting pain and reported minimal pain during activity (average visual analog scale 0.5; range 0-1.4). Conclusions  Press-fit hemihamate arthroplasty is a safe and effective procedure for treating chronic PIPJ fracture-dislocations without the risk of screw protrusion.

Hemi-hamate Arthroplasty for Base of Middle Phalanx Fracture: A Systematic Review

Intra-articular fracture dislocations of the base of the middle phalanx are complex and debilitating injuries that present a management conundrum when nonreconstructable. Hemi-hamate arthroplasty (HHA) is a treatment modality of particular use in the setting of highly comminuted fractures. This systematic review aims to summarize the reported outcomes of HHA in this context. A literature search was conducted using MEDLINE, Embase, and PubMed, yielding 22 studies with 235 patients for inclusion. The weighted mean postoperative range of movement at the proximal interphalangeal joint was 74.3° (range, 62.0°-96.0°) and at the distal interphalangeal joint was 57.0° (range, 14.0°-80.4°). The weighted mean postoperative pain Visual Analog Scale was 1.0 (range, 0.0-2.0). The weighted mean postoperative grip strength was 87.1% (range, 74.5%-95.0%) of the strength on the contralateral side. Posttraumatic arthritis was reported in 18% of cases, graft collapse in 4.2%, and donor site morbidity in 3.0%, with a mean follow-up period of 28.4 months (range, 1-87 months). Hemi-hamate arthroplasty is a reliable and effective technique for the reconstruction of intra-articular base of middle phalangeal fracture dislocations, affording symptomatic relief and functional restoration. Further research is required to assess the true incidence of long-term complications.

Open Reduction and Internal Fixation of Dorsal Fracture-Dislocation of the Proximal Interphalangeal Joint Using a Plate: A Series of 37 Patients

Background: Open reduction and internal fixation with a plate is one of the alternative treatments for fracture-dislocation of the proximal interphalangeal (PIP) joint. However, it does not always lead to satisfactory results. The aim of this cohort study is to describe the surgical procedure and discuss the factors affecting the treatment results. Methods: We retrospectively reviewed 37 cases of consecutive unstable dorsal fracture-dislocation of the PIP joint treated using a mini-plate. The volar fragments were sandwiched with a plate and dorsal cortex, and screws were used as subchondral support. The average rate of articular involvement was 55.5%. Five patients had concomitant injuries. The mean age of the patients was 40.6 years. Mean time between injury and operation was 11.1 days. The average postoperative follow-up duration was 11 months. Active ranges of motion, % total active motion (TAM) were evaluated postoperatively. The patients were divided into two groups according from Strickland score and Gaine score. Fisher's exact test, Mann-Whitney U test and a logistic regression analysis were used to evaluate the factors affecting the results. Results: The average active flexion, flexion contracture at the PIP joint, and % TAM were 86.3°, 10.5° and 80.6%, respectively. Group I included 24 patients who had both excellent and good scores. Group II included 13 patients who had neither excellent nor good scores. When the groups were compared, there was no significant relationship between the type of fracture-dislocation and the extent of articular involvement. There were significant associations between outcomes and patient age, period from injury to surgical intervention and presence of concomitant injuries. Conclusions: We concluded that meticulous surgical technique leads to satisfactory results. However, factors, including the patient's age, time from injury to surgery and the presence of concomitant injuries needing adjacent joint immobilisation, contribute to unsatisfactory outcomes. Level of Evidence: Level IV (Therapeutic).

Hemi-hamate arthroplasty for the management of chronic proximal interphalangeal joint fracture dislocations: Analysis of 21 cases in Indian population and review of the literature

Background

Chronic fracture-dislocations involving the proximal interphalangeal (PIP) joint are challenging cases. We conducted this study to analyze the outcomes following hemi-hamate autograft reconstruction of such injuries and to compare our results with the existing literature.

Methods

A retrospective analysis of 21 patients with chronic dorsal PIP fracture-dislocations that were managed with hemi-hamate autograft reconstruction was done. The average articular surface involvement was 64%. The average duration between injury and surgery was 9.4 weeks (range, 6-16). Quick DASH (Disabilities of Shoulder and Hand) scores, VAS (Visual Analog Scale) scores, range of motion of the PIP joints, DIP (distal interphalangeal) joints, and MCP (metacarpophalangeal) joints were measured during serial follow-up visits.

Results

Union and graft incorporation was seen in all cases. The average Quick DASH score at four weeks post-surgery was 66 and it improved to eight at one year (p-value<0.05). The average VAS score at four weeks post-surgery was 7.66 and it improved to 2.09 at one year (p-value<0.05). The mean flexion of the MCP joint improved from 52.85° at the end of four weeks to 72.38° at one year (p-value<0.05). The average flexion at the PIP joint improved from 10.47° at the end of four weeks to 70.47° at one year (p-value<0.05). The average DIP flexion improved from 38.33° at the end of four weeks to 62.38° at one year (p-value<0.05). The average hand grip strength was 85% of the normal side.

Conclusion

Hemihamate autograft reconstruction is a suitable procedure for the management of chronic PIP joint fracture-dislocations, especially in cases with extensive involvement of the articular surface.

Level of evidence

III.

Hemihamate Arthroplasty Revisited: A Retrospective Review of 11 Cases

PURPOSE

Proximal interphalangeal joint (PIPJ) fracture dislocations are complex injuries that can result in persistent pain, stiffness, and angulation. Hemihamate arthroplasty (HHA) can be used to reconstruct the base of the middle phalanx in cases of unstable PIPJ fracture dislocations. Despite previous case series describing good outcomes with HHA, it has not gained widespread use. The purpose of this study is to describe our straightforward, reproducible technique and to demonstrate the benefit in motion after the procedure in chronic unstable PIPJ fracture dislocations.

METHODS

All patients with chronic, unstable PIPJ fracture dislocations requiring joint resurfacing of greater than 40% of the base of the middle phalanx treated with HHA were retrospectively reviewed. Patient demographics, injury features, surgical technique, preoperative and postoperative PIPJ range of motion and arc of motion, time to surgery, and complications were reviewed. Any fracture amenable to fixation or cases with radiographic evidence of arthritis or injury to the head of the proximal phalanx were excluded.

RESULTS

Eleven cases were reviewed. The mean patient age was 35 years. The mean time from injury to surgery was 6 months. The mean joint surface involved was 64%. The mean PIPJ arc of motion was 17 degrees preoperatively and 63 degrees postoperatively. The mean bone block size required was 8 × 8 × 8 mm. The mean follow-up was 26 months. Postoperative pain at the PIPJ on the visual analog scale was 0.4 (scale of 0 to 10). Complications included 2 patients requiring tenolysis.

CONCLUSIONS

Despite the lack of a perfect geometric recreation of the base of the middle phalanx with the hamate, patients recover acceptable PIPJ motion and have minimal pain. Hemihamate arthroplasty is a good option for any patient with minimal motion of their PIPJ and a chronic, unstable fracture dislocation.

Closed Reduction and Percutaneous Pinning for Treatment of Proximal Interphalangeal Joint Pilon Fractures

BACKGROUND

Proximal interphalangeal (PIP) joint pilon fractures are among the challenging hand injuries, which are often associated with a wide range of complications. This study aimed to report the clinical and radiological outcomes of closed reduction and percutaneous Kirschner wire (KW) insertion with or without bone cement application (for the fabrication of an external fixator) in the treatment of PIP joint pilon fractures.

METHODS

Twenty pilon fractures underwent closed reduction and percutaneous KW fixation through a modified technique. At the end of the follow-up period, 3 questionnaires-Quick Disabilities of the Arm, Shoulder, and Hand (Quick DASH), Visual Analogue Scale for pain, and Patient-Rated Wrist Evaluation-were completed. The radiological outcome was assessed by radiography. Range of motion, and grip and pinch strength were measured.

RESULTS

The mean follow-up period was 14.57 ± 4.03 months (range, 12-20 months). The mean range of motion of PIP at the end of the follow-up period was 89.64° ± 10.82° (range, 65°-100°). The mean difference in the range of motion in the contralateral side was 21.4° ± 13°. The mean of the Quick DASH score was 13.50 ± 2.92 (range, 11-21). Two patients had residual articular malalignment, and 3 patients had angular or rotational malunion.

CONCLUSION

By treating pilon fractures with the proposed technique, we achieved a satisfactory outcome. The acceptable articular and axial alignment was achieved in 75% of patients, and complications were low. The flexibility of percutaneous KW insertion and handmade external fixators makes these approaches convenient for treating PIP joint pilon fractures.

Arthroplasty for destroyed proximal interphalangeal joint in hand trauma surgery: Silicone hinged NeuFlex® or gliding Tactys®?

The treatment of proximal interphalangeal joints (PIP) after a traumatic injury has produced disappointing outcomes. The objective of this study was to evaluate the functional results of emergency hinged or gliding arthroplasty for destroyed PIP joints. A two-center retrospective study was carried out in 24 patients with open and closed trauma of the PIP joint of the fingers from 2007 to 2019. Fifteen hinged silicone implants (NeuFlex®) and nine gliding implants (Tactys®) were used. Pain on a visual analog scale (VAS), stability and total active motion (TAM), grip and pinch strength (Jamar®), QuickDASH and PRWE and satisfaction were assessed, and X-rays were performed. With a mean follow-up of 48 months, 24 patients aged 58 years on average were reviewed. Pain on VAS was 0.2/10, the TAM was 72% of the contralateral side, the QuickDASH was 15.6/100 and the PRWE was 24.5/100. PIP flexion was ≥50% of the contralateral side in 75% of patients. PIP and DIP extensor lag of 9° was significantly larger with the Tactys® than with the NeuFlex®, with no significant difference in the TAM. Three clinodactylies in fingers with the NeuFlex® and three reducible swanneck deformities in fingers with the Tactys® were noted. Three-quarters of patients were very satisfied or satisfied with the outcome. Emergency PIP arthroplasty with Tactys® seems to provide functional results that are as good as with NeuFlex®. Clinodactyly was found with NeuFlex® use. A significant PIP and IPD extensor lag of 9° and swan-neck deformities were found with Tactys® without significant functional impairment.

Long-term outcomes after extension block pinning for fracture-dislocations of the proximal interphalangeal joint

IV.

Blocking Plate for Volar Proximal Interphalangeal Joint Fracture Dislocation

PURPOSE

To assess the use of a 2-mm miniplate as a dorsal blocking plate to stabilize the central avulsion fragment in a proximal interphalangeal joint (PIP) volar fracture dislocation.

METHODS

This was a case series comprising 8 patients with volar fracture dislocation of the PIP joint. The average age of the patients was 36 years. The patients were managed by this technique within an average of 11 days following the injury. The clinical outcome measurements included the assessment of pain and range of motion of the PIP and distal interphalangeal joints.

RESULTS

The average follow-up duration was 20 months. The mean visual analog scale pain score was 1.9. The average range of motion of the PIP joint was 82°, whereas the average range of motion of the distal interphalangeal joint was 43°. Reduction of the subluxation was achieved in all cases, with no articular step remaining.

CONCLUSIONS

A dorsal blocking plate is a simple technique, associated with a satisfactory outcome, for volar fracture dislocation injuries of the PIP joint.

TYPE OF STUDY/LEVEL OF EVIDENCE

Therapeutic V.

Volar plating versus external fixation for unstable dorsal fracture-dislocations of the proximal interphalangeal joint

We retrospectively compared the results of volar plating and dynamic external fixation for acute unstable dorsal fracture-dislocations of the proximal interphalangeal joint with a depressed fragment. We treated 31 patients (31 fingers), 12 with volar buttress plating and 19 with dynamic external fixation. Follow-up averaged 35 and 40 months in the two groups, with a minimal 6-month follow-up. Average active flexion of the proximal interphalangeal joint was 95° after plate fixation and 87° after external fixation, with an active extension lag of -6° and -9°, respectively. Active flexion at the distal interphalangeal joint averaged 67° in the plate group and 58° in the external fixation group, with active extension lags of 0° and -5°, respectively. We conclude that both methods can obtain a good range of motion at the proximal interphalangeal joint. A limitation of the extension of the distal interphalangeal joint occurred with dynamic external fixation but not with volar buttress plating.Level of evidence: IV.

Dorsal Subluxation of the Proximal Interphalangeal Joint After Volar Base Fracture of the Middle Phalanx

Background: Treatment decisions regarding volar base fractures of the middle phalanx depend on whether the proximal interphalangeal (PIP) joint is reduced. Our aim was to study the agreement among hand surgeons in determining whether the PIP joint fractures are subluxated and to study the factors associated with subluxation of these fractures. Methods: In this retrospective chart review, 413 volar base fractures of the middle phalanx were included. Demographic and injury-related factors were gathered from medical records and radiographs. Using a Web-based survey, interobserver agreement was determined among 105 hand surgeons on the assessment of PIP joint subluxation of a series of 26 cases. Using the cohort of 413 fractures, a threshold for percent articular involvement and relative fracture displacement that corresponds with subluxation of the PIP joint was analyzed. Results: We found moderate to substantial agreement between hand surgeons on subluxation (κ = 0.59, P < .0001) and an overall percent agreement of 85%. Percent articular involvement and relative fracture displacement were independently associated with subluxation of the PIP joint (P < .001). Percent articular involvement of 35% had a specificity of 90% and a negative predicting value (NPV) of 92% for joint subluxation. Relative fracture displacement of 35% had a specificity of 92% and an NPV of 94% for joint subluxation. Conclusions: Surgeons generally agree on whether a PIP joint is subluxated. Percent articular involvement and relative fragment displacement are objective measurements that can help characterize joint stability and assist with decision-making.

Hemihamate arthroplasties in pilon fractures: a modified approach and experience in 30 patients

Hemihamate arthroplasty is an established method of managing difficult Pilon fractures of the proximal interphalangeal (PIP) joint. We present our experience in 30 patients, whose injuries were further complicated by severe comminution and late presentations. Several modifications were utilized, including preoperative distraction, use of smaller size grafts and functional release of collaterals. The average follow-up period was 28 months (range 18 to 28). Postoperatively, the average range of flexion at the PIP joint improved from 30° (range 20° to 45°) preoperatively to 104° (90° to 110°) at the final follow-up. The average extension lag was 6° (0° to 20°). Five patients required secondary procedures and no patient had a recurrent dorsal dislocation. We propose these modifications in the use of hemihamate arthroplasty for the management of difficult PIP joint fractures.Level of evidence: IV.

Reoperation After Operative Fixation of Proximal Interphalangeal Joint Fractures

Background: The purpose of this study was to determine the reoperation rate and what factors are associated with reoperation of proximal interphalangeal (PIP) joint fractures. Methods: We identified 161 surgically treated PIP joint fractures between 2004 and 2015 at 2 academic medical systems. Demographic, injury, radiographic, and treatment data that might be associated with reoperation were collected. Bivariate analysis was performed. Factors identified during bivariate analysis with a P < .10 were entered into a multivariable logistic regression analysis. Results: Of the 161 fingers, 25 underwent revision surgery. Open fracture was independently associated with revision surgery. The most common indication for reoperation was joint stiffness (35%). In a subanalysis of 111 closed fractures, no factors were associated with revision surgery. Conclusions: Soft tissue injury is a major factor in reoperation after PIP joint fracture dislocation. Specific attention should be paid to persistent subluxation because this may predispose to early arthrosis.

Percutaneous Intramedullary Reduction Technique for Impacted Middle Phalanx Base Fractures

Proximal interphalangeal joint injuries are common and are a major risk for functional deficits of the finger that affect range of motion and grip strength. Impacted intra-articular fractures and fracture dislocations of the middle phalanx base are challenging to treat because of troublesome joint reduction and difficulties in achieving articular congruity. Although treatment algorithms have been published, the anatomically delicate proximal interphalangeal joint often remains incomplete in function and may result in post-traumatic pain, stiffness, and osteoarthritis. This article describes a percutaneous intramedullary reduction technique for impacted middle phalanx fractures as a treatment option to achieve articular congruity with minimal surgical trauma. The reduction technique may be considered for selected patients with impacted fractures of the base of the middle phalanx with or without joint dislocation.

Management of Highly Comminuted Intra-articular Fracture Subluxations at the Proximal Interphalangeal Joint by Subchondral Buttress Fixation and Early Mobilization

This article describes our technique of managing highly comminuted intra-articular fracture subluxations at the proximal interphalangeal joint by subchondral buttress fixation followed by early mobilization. This technique has proven to be reliable and all patients have been able to return to their preinjury level of activity.

Treatment for Acute Proximal Interphalangeal Joint Fractures and Fracture-Dislocations: A Systematic Review of the Literature

Proximal interphalangeal joint (PIPJ) fractures and fracture-dislocations are common hand injuries and recognition of this injury pattern is essential in the management of these fractures. Although a variety of treatment options have been reported in the literature, the optimal treatment remains controversial. MEDLINE, EMBASE, and The Cochrane Library Database were screened for treatment strategies of PIPJ fracture and fracture-dislocation. Demographic data and outcome data were collected and recorded. A total of 37 studies including 471 patients and 480 fingers were reviewed. PIPJ range of motion (ROM) was greatest postoperatively in patients who underwent volar plate arthroplasty at 90.6 degrees. Dynamic external fixation resulted in the lowest PIP joint ROM with an average of 79.7 degrees. Recurrent pain and osteoarthritis were most often reported in extension block pinning at 38.5 and 46.2%, respectively. Open reduction and internal fixation had the highest rate of revision at 19.7%. Overall, the outcomes of PIP fractures and fracture-dislocations are based on the severity of injury, and the necessary treatment required. Closed reduction with percutaneous pinning and volar plate arthroplasty had good clinical and functional outcomes, with the lowest complication rates. Hemi-hamate arthroplasty and dynamic external fixation were utilized in more complex injuries and resulted in the lowest PIPJ ROM. This is a therapeutic, Level III study.

Simplified Kirschner‑wire-based dynamic external fixator for unstable proximal interphalangeal joint fractures

PURPOSE

Ligamentotaxis is a well-established treatment modality for treating challenging articular fractures. Many devices have been evolved to apply this principle to complex proximal interphalangeal joint (PIPJ) fractures. Although they gave satisfactory results, these devices were sometimes costly, complex and cumbersome. The aim of this study was to evaluate the short-term functional and radiological outcomes of treating complex intra-articular PIPJ fractures using a simplified, preloaded Kirschner‑wire (K‑wire)-based dynamic external fixator.

METHODS

Twenty consecutive patients with intraarticular PIPJ fractures, who fulfilled the study selection criteria, have been treated during 2018 and included in this prospective study after the approval of the responsible institutional ethics committee. Plain radiographs were used for assessing fracture reduction, congruity and healing. The visual analogue sore (VAS) and the Michigan Hand Outcome Questionnaire (MHQ) were used for functional evaluation. PIPJ range of motion (ROM) and hand grip-strength were also assessed.

RESULTS

At the final follow-up, all patients had no residual pain. The average PIPJ-ROM was 76.4 ± 23.51°, and the average grip-strength was 85 ± 13.95% as compared to the healthy side. The mean normalized MHQ score was 83 ± 12.63 points, with 4, 13, and 3 patients had excellent, good, and fair results retrospectively. Complications included pin tract infection (one case), stress fracture related to the applied wires (one case), and flexion contractures (four cases; three of them were symptomatic).

CONCLUSIONS

The used fixator technique is simple, reliable, available, reproducible, time-saving and cost-effective for managing complex PIPJ fractures while allowing early joint mobilization, which proven effective in achieving high satisfactory functional results.

The management of acute fracture dislocations of proximal interphalangeal joints: a systematic review

LEVEL OF EVIDENCE

III.

Postoperative Dorsal Proximal Interphalangeal Joint Subluxation in Volar Base Middle Phalanx Fractures

Introduction  This study was designed to assess factors associated with postoperative dorsal proximal interphalangeal (PIP) joint subluxation after operative treatment of volar base middle phalanx fractures. Our second purpose was to study the association between postoperative dorsal subluxation with postoperative arthritis. Materials and Methods  We identified 44 surgically treated volar base PIP joint fractures with available pre- and postoperative radiographs between 2002 and 2015 at two academic medical systems with a median follow-up of 3.5 months. Demographic, injury, radiographic, and treatment data that might be associated with postoperative dorsal subluxation were collected. Three hand surgeons independently assessed subluxation and arthritis on radiographs. Bivariate analysis was performed to analyze our two study purposes. Results  Six of 44 (14%) had postoperative dorsal subluxation after initial surgery. Bivariate analysis showed no factors with statistically significant association with postoperative subluxation, assessed independently by three hand surgeons on radiographs. Fifty per cent of the joints with postoperative arthritis had postoperative subluxation compared with 21% of joints without postoperative subluxation. No significant association was found between postoperative dorsal subluxation with postoperative arthritis. Conclusion  The association of persistent subluxation and early arthrosis in dorsal PIP joint fracture dislocations needs further study. At this time, it is unclear in what ways persistent subluxation or arthrosis affects the rate of reoperation. Level of Evidence  This is a therapeutic level IV study.

An investigation of the acute management of closed intra-articular fractures of the proximal interphalangeal joint in Ireland

Purpose

Many treatment methods for intra-articular fractures of the proximal interphalangeal (PIP) joint are described in the literature without a consensus on the most effective approach. The purpose of this study was to investigate the methods of treatment of PIP joint fractures being used by trauma surgeons in the Republic of Ireland currently and the timing of referral to therapy.

Design/methodology/approach

A cross-sectional descriptive study methodology was used to survey trauma surgeons, occupational therapists and physiotherapists in Ireland. An online platform was used. A total of 21 surveys were returned by surgeons and 37 by therapists. Descriptive statistical analysis was used to present the results.

Findings

Buddy strapping was reported as the primary treatment method for stable PIP joint fractures. All levels of fracture severity were reported to be treated using traction constructs, which include static and dynamic fixation and orthoses. Unstable fractures were managed using open reduction with internal fixation by 50 per cent of surgeons. Early timing of referral to therapy is reported by more surgeons than therapists. The majority of therapists indicated that they did not have the resources to see patients at the optimal time.

Originality/value

To the authors’ knowledge, this study provides the first description of the management of PIP joint fractures across the Irish health service. The findings of this study suggest that additional therapy resources are required within the health service executive to facilitate the desired early referral to therapy and to enable service development for this category of hand fractures.

Open Reduction Internal Fixation With Transverse Volar Plating for Unstable Proximal Interphalangeal Fracture-Dislocation: The Seatbelt Procedure

Background: Unstable intra-articular proximal interphalangeal (PIP) joint fracture-dislocations present a difficult problem that requires congruous joint reduction and stable internal fixation or distraction. Though fractures with limited articular involvement may be treated successfully with less invasive procedures, fracture-dislocations with a volar shear component may benefit from joint reduction with subchondral support for maintenance of stability. The purpose of this article is to describe a volar transverse plate and screw technique and report the short-term postoperative results. Methods: Seventeen patients with volar shear PIP dorsal fracture-dislocations were treated with transverse plate and screw constructs at an average of 21 days (range, 2-52) after injury. Information on postoperative stability, range of motion at PIP and distal interphalangeal (DIP) joints, and radiographic outcomes and complications were retrospectively collected. Results: At a mean of 7.3 months post-operation (range, 1.5-24), there were no recurrent dislocations and an average PIP arc of 77.4° and DIP arc of 61.5°. Sixteen of 17 patients had radiographically concentric joints, with 1 patient showing slight radiographic dorsal subluxation not apparent clinically. Two of 17 patients (11.8%) had revision surgery for tenolysis and removal of hardware to improve range of motion at 4 and 9 months post-operation. Conclusions: In the setting of PIP dorsal fracture-dislocations with volar shear component >40% of the articular surface, the Seatbelt procedure allows for concentric joint and articular surface reduction with subchondral support for maintenance of stability. This volar transverse plating technique allows for highly functional range of motion without PIP dorsal subluxation clinically in the setting of comminution and delayed presentation.

Clinical and radiological midterm outcome after treatment of pilonoidal fracture dislocations of the proximal interphalangeal joint with a parabolic dynamic external fixator

INTRODUCTION

Several methods treating proximal interphalangeal joint (PIP) fracture dislocations have been established providing early joint mobilization. The aim of this study was to evaluate the clinical and radiological outcome of unstable fracture dislocations of the PIP treated with a parabolic dynamic external fixator consisting of two Kirschner (K)-wires.

MATERIALS AND METHODS

Twenty-one patients who sustained a pilonoidal fracture of the PIP joint and were treated with a dynamic external fixator were evaluated retrospectively. The active range of motion, pain level, DASH score, Buck Gramcko Score, and the patient's satisfaction and acceptance were assessed. X-ray images were evaluated for bone healing, joint alignment, and signs of osteoarthritis.

RESULTS

Mean PIP joint range of motion was 76°. Patients showed very mild discomfort (mean 0.7), high patient satisfaction (mean 1.9), and a moderate acceptance (mean 2.7). The mean DASH score was 11.6 and the Buck Gramcko score 13. All patients showed bone healing. One patient suffered from a recurrent dislocation, and another a subluxation of the PIP joint while wearing the fixator. Both joints could be corrected by modifying the fixator under image intensifier. Twenty patients (95%) showed a concentric and stable aligned joint. Three patients showed an osteoarthritis stage 0, five stage 1, nine stage 2, three stage 3, and one stage 4 according to the Kellgran-Lawrence Score.

CONCLUSION

The use of a parabolic dynamic external fixator constructed from two K-wires restores joint alignment and stability in unstable pilonoidal PIP joint disclocation fractures. It allows immediate PIP joint mobilization to avoid adhesions. Modifications of the radius of the parabolic construct within cases of postoperative malalignment, without anesthesia, can restore joint axis and malalignment. This fixator is a cost-effective alternative, showing a good clinical outcome.

Hemi-hamate osteochondral autograft for acute dorsal proximal interphalangeal fracture-dislocations

PURPOSE

Our aim was to investigate the clinical and radiological results of a hemi-hamate autograft arthroplasty method in patients with acute trauma who had a fragmented fracture of the proximal palmar joint surface of the middle phalanx and dorsal PIP subluxation.

METHODS

A total of 13 fingers from 13 patients who met the criteria were included in the study (11 men and 2 women) and prospectively reviewed. The mean age of the patients was 39.5 years. The mean interval between the injury and surgery was 6.3 days. The active movement of the DIP, PIP, MP and wrist joints was started on postoperative day. Follow-ups were performed at 6 weeks, 3, 6 and 12 months postoperatively. Range of motion for the DIP, PIP and MP joints, DASH and VAS scores, grip strength, two-point discrimination, finger pulp and palmar curve distance were evaluated.

RESULTS

All PIP joints were stable against coronal and sagittal stress at the 1st postoperative year and there was no limitation in wrist movements. Two-point discrimination was < 5 mm in all fingers. Union was achieved in all grafts except one. The mean active total PIP range of motion was 82.3°, DIP range of motion was 61.1°, MP joint motion was 87°. The mean DASH score was 7.6, and the mean VAS score was 1.5. The mean grip strength was 33.7 kg, which was 93% of the healthy side. The mean finger pulp and palmar curve distance was 8.6 mm.

CONCLUSIONS

We believe that HHA is an appropriate alternative in cases of acute dorsal PIP fracture-dislocations with an intact middle phalanx dorsal cortex that is not suitable for primary fixation, with the advantages of obtaining stable joint and satisfactory functional results.

Accuracy and Reliability of Radiographic Estimation of Volar Lip Fragment Size in PIP Dorsal Fracture-Dislocations

Background: A cadaveric study was performed to evaluate the accuracy and reliability of radiographic estimation of the volar lip fragment size in proximal interphalangeal joint fracture-dislocations. Methods: Middle phalangeal base volar lip fractures of varying size and morphology were simulated in 18 digits. Radiographs and digital photographs of the middle phalangeal joint surface were obtained pre- and postinjury. Ten orthopedic surgeons of varying levels of training estimated the fracture size based on radiographs. The estimated joint involvement on radiograph was compared with the digitally measured joint involvement. Results: Radiographic estimation underestimated the volar lip fragment size by 9.02%. Estimations possessed high intraobserver (0.76-0.98) and interobserver (0.88-0.97) reliabilities. No differences were detected between levels of surgeon training. Conclusions: The significant underestimation of the volar lip fragment size demonstrates the lack of radiographic estimation accuracy and suggests that surgeons should be mindful of these results when making treatment plans.

Dorsal Plating for Intra-articular Middle Phalangeal Base Fractures With Volar Instability

Background: Intra-articular middle phalangeal base fractures with volar instability are rare injuries with scant literature on optimal management. Our purpose is to describe our method of dorsal plating and report postoperative outcomes. Methods: This study is a retrospective case review of 5 patients with intra-articular middle phalangeal base fractures with volar proximal interphalangeal joint instability, measuring subjective, clinical, and radiographic outcomes. Results: Patient age averaged 38.2 years (range, 23-56 years), and 80% were male. Sporting injuries were the most common mechanism (80%). Time to surgery averaged 7 days, and postoperative follow-up duration averaged 19.6 months (median 8 months). All fractures were intra-articular at the proximal interphalangeal joint with volar instability. There were no complications and no patients required secondary surgery. Grip strength was maintained and range of motion was good, based on the American Society for Surgery of the Hand Total Active Motion score. Average Quick Disability of the Arm, Shoulder and Hand was 0.5 (range, 0-2.3), 100% of patients were satisfied, and average visual analog pain score was 1.2. Patients returned to work at a median of 4 days. There was radiographic union at an average of 6.6 weeks (range, 6-7 weeks) in all fractures. Conclusions: Dorsal plating using a 1.5-mm modular hand plate is a viable option for rigid fixation of intra-articular middle phalangeal base fractures with volar instability. This fixation method allows for early range of motion without complications in this case series. All fractures united, and patients had minimal functional deficits and were able to maintain good range of motion.

Outcomes of the Hemi-Hamatum Arthroplasty

Background: Multi-fragmental intra-articular middle phalanx base fractures mostly occur in young adults during sports or work-related activities. If left untreated properly proximal interphalangeal joint (PIPJ) instability and pain persists, thus impairing the hand's function and the patient's quality of life. Joint surface reconstruction with hamate osteochondral graft can be used for multi-fragmental middle phalanx base reconstruction. Methods: A retrospective study was conducted. The technique was used for 17 patients. Follow-up was performed at least 6 months after the surgery. Patients were asked to fulfil multiple surveys: Disabilities of the Arm, Shoulder and Hand (DASH), Patient-Rated Wrist Evaluation (PRWE) and Modern Activity Subjective Survey 2007 (MASS07). Objective measurements included strength of the power and pinch grip, range of motions (ROM) in both proximal interphalangeal and distal interphalangeal (DIPJ) joints. All measurements were taken on both hands, on operated and contralateral fingers. Results: Out of 17 patients 5 were females and 12 males, mean age 40 (ranged 22-65 years) Eleven patients agreed to participate in the follow-up. All patients were right-handed, 8 patients had injured their right hand. The injuries' aetiologies were sports (n = 3), fighting (n = 2) and work-related (n = 4). Six patients were treated with immobilisation before the surgery, which was performed on average 45 days after the injury (ranged 1-184 days). Two patients developed arthrosis post-operatively and received synthetic joints. Mean DASH score was 6.9, PRWE score was 5.2 and mean MASS07 score was 6.8. Patients achieved on average 90% of power grip and 100% of pinch grip with their injured hand compared to their healthy hand. Average ROM in PIPJ was 82.2° and in DIPJ 68.9°. No patients experienced joint instability or chronic pain. Conclusions: Hemi-hamate arthroplasty provides satisfactory results in patients with both acute and chronic dislocated intra-articular middle phalanx base fractures.

[Percutaneous treatment of unstable fractures of the base of the middle phalanx : Technique according to Hintringer and Ender]

OBJECTIVE

Reconstruction of intra-articular impression fractures of the middle phalanx by percutaneous reduction over a small dorsal cortical window. Stabilization by lattice-like arranged K‑wires.

INDICATIONS

Impression fractures of the base of the middle phalanx with or without dislocation in the proximal interphalangeal joint.

CONTRAINDICATIONS

Fractures extending to the shaft of the middle phalanx.

SURGICAL TECHNIQUE

By a cortical window at the dorsum of the middle phalanx (through the tendon free triangle) the impression fracture is reduced from the medullary cavity. Reduction is secured and the articular surface is supported by lattice-like arranged K‑wires.

POSTOPERATIVE MANAGEMENT

Thermoplastic splint for the finger for 6 weeks, subsequently K‑wire removal, active range of motion exercises and hand occupational therapy.

RESULTS

In two case series already published, good clinical and radiological results were reported. No complications were detected in either series.

Injuries Around the Proximal Interphalangeal Joint

Proximal interphalangeal joint (PIPJ) injuries are common and challenging to treat, involving a spectrum of conditions ranging from isolated ligamentous injuries to severe fracture dislocations. The main goal of treatment is to achieve a congruent, stable joint, which is key to achieving early range of motion and a favorable outcome. Injuries that do not compromise the stability of the joint may be treated nonsurgically, whereas those that render the joint unstable may be managed with one of many surgical strategies available. This article focuses on the current practices of treatment of injuries around the PIPJ.

Unstable Dorsal Fracture-Dislocations of the Proximal Interphalangeal Joint: Volar Plate Fixation with or without Bone Graft

BACKGROUND

To evaluate the treatment of severe dorsal fracture dislocation (DFD) injuries of the proximal interphalangeal joint (PIPJ) by open reduction, bone grafting and fixation with mini-hook plates.

METHODS

Fourteen patients with extensive dorsal fracture dislocation of the PIPJ were operatively treated to reconstruct the fractured middle phalanx volar lip using a fabricated hook plate in conjunction with elevation and bone grafting of depressed articular fragments where present.

RESULTS

Restoration of PIPJ articular anatomy and congruence by hook plate fixation permitted full-range mobilization of the joint during fracture healing, with an average arc of motion of 81° and an average loss of extension of 12.9° at a minimum of 6 months follow up. Hook plate treatment of PIPJ fracture dislocation restores articular anatomy and joint congruence at a single sitting and permits post-operative mobilization without the need for extension block splinting.

CONCLUSIONS

Our results demonstrate a good range of motion following treatment, however hardware removal and tenolysis was necessary in 36% of cases.

The Acute Management of Unstable Intra-Articular Fractures of the Base of the Middle Phalanx: A Systematic Review

BACKGROUND

Within hand trauma, the management of unstable, intra-articular fractures of the base of the middle phalanx remains highly controversial. The objective of this research was to determine which operation gives the best outcome in the management of displaced, intra-articular fractures of the base of the middle phalanx causing instability of the proximal interphalangeal joint.

METHODS

A scoping study was performed to determine the evidence available and the terminology used. A Systematic Review was then performed along PRISMA guidelines. This Systematic Review looked specifically for papers available in English, published over the last ten years, with clinical data for at least five cases of acute unstable fractures of the base of the middle phalanx. There must be two years follow-up with less than 30% loss to follow-up.

RESULTS

There were no Systematic Reviews or Cochrane reviews. There were no randomized controlled trials and the best studies were simply cohort studies with level III or IV evidence. There was a paucity of high quality studies, with small, heterogeneous groups, short length of follow-up and high loss to follow up. Only seven papers met the Systematic Review criteria.

CONCLUSIONS

General trends show excellent return of grip strength and good function despite some ongoing pain and stiffness. There were high complication rates for all techniques and the possible reasons for different outcomes are discussed.

Joint distraction and early mobilization using a new dynamic external finger fixator for the treatment of fracture-dislocations of the proximal interphalangeal joint

BACKGROUND

Dynamic external fixation is a useful treatment option for unstable fracture-dislocations of the proximal interphalangeal (PIP) joint, because it simultaneously reduces axial pressure load on the joint surface, maintains congruent joint reduction, and permits early joint motion. However, most current devices are large, hindering finger movement, and unstable. To address these problems, we developed a dynamic external finger fixator, named the Micro Ortho Fixator^®. The purpose of this study was to review the results of using the new external finger fixator to treat unstable fracture-dislocations of the PIP joint.

MATERIALS AND METHODS

Nine patients who sustained unstable fracture-dislocation injuries of the PIP joint were treated with the Micro Ortho Fixator^®. Seven fractures were accompanied by depressed bony fragments at the base of the middle phalanx. All patients were evaluated for pain and range of PIP motion at the final follow-up. Radiographs of the affected fingers were evaluated for PIP congruity and reduction. The mean follow-up duration was 11.1 months (range: 6-33 months).

RESULTS

At the final follow-up, pain averaged 0.3 (range: 0-2) on the Numeric Pain Rating Scale, and the total arc of motion at the PIP joint averaged 91.2° (range: 50-110°). All fractures had healed, and the intra-articular step-off improved from 1.9 mm (SD: 1.0) before surgery to 0.2 mm (SD: 0.4) at the final follow-up. The patients who sustained sports injuries returned to competition after an average of 3.5 months (range: 2.5-4 months).

CONCLUSION

The external fixator is compact and facilitates range-of-motion (ROM) exercises, has high stability, and achieves good joint congruity and an ROM equivalent to the healthy joint of the patient.

STUDY DESIGN/LEVEL OF EVIDENCE

Therapeutic/IV.

[Reconstruction of the middle phalangeal base of the finger using an osteocartilaginous autograft from the hamate]

OBJECTIVE

Restoration of proximal interphalangeal joint stability with preservation of mobility by reconstruction of the middle phalanx base using an osteochondral graft from the carpometacarpal joint surface of the hamate.

INDICATIONS

Acute and older isolated destruction of the palmar middle phalanx base >25%.

CONTRAINDICATIONS

Destruction of the head of the proximal phalanx, advanced chondropathia of the head of the proximal phalanx, extensive soft tissue injury with loss of skin coverage at the proximal interphalangeal joint.

SURGICAL TECHNIQUE

The fractured middle phalangeal base is debrided and the defect is replaced by a size-matched autograft from the dorsal carpometacarpal hamate osteoarticular surface that is secured in place with miniscrews.

POSTOPERATIVE MANAGEMENT

Immobilization for 2 weeks in a below-elbow cast in intrinsic plus position. Subsequent immobilization by a splint including the distal and proximal interphalangeal joint.

RESULTS

Healing was achieved in 100% with restoration of joint congruity in 12 of 13 cases and slight subluxation in 1 case. Follow up was possible in 9 cases after 22 ± 16 (5-51) months. The average range of motion in the reconstructed joint achieved 0/9/73°, grip strength 82% of the unaffected side. Of the 9 patients, 5 developed a mild flexion contracture of the proximal interphalangeal joint. The DASH score achieved 4 ± 3 (0-8) points, pain at rest was 1 ± 2 (0-5), pain at exercise 2 ± 2 (0-5) on a visual analogue scale (0-10). All patients were satisfied and willing to undergo the procedure again. According to the literature, reconstruction of the base of the middle phalanx by using an osteochondral graft from the hamate is a reliable procedure to restore stability and mobility of the joint.

Distraction ligamentotaxis for complex proximal interphalangeal joint fracture dislocations: a clinical study and the modified pins rubber band traction system revisited

Background

The purpose of this study is to present our experience with the modified pins and rubber band traction system, discuss problems encountered, and make recommendations to optimize outcomes.

Methods

Data was collected prospectively from November 2013 to March 2017 at a tertiary referral hospital in Melbourne, Australia. Patients with closed complex proximal interphalangeal joint fracture dislocations that were considered unsuitable for other surgical options were included in the study. Patients underwent dynamic skeletal distraction using the modified (Deshmukh) pins rubber band traction system. Outcomes were measured using the Nominal Rating Scale for pain; Disabilities of the Arm, Shoulder, and Hand (DASH) score; active and passive range of motion; patient rating scale; and complications.

Results

Twenty patients underwent the procedure, and 19 were included in analyses. At the final follow-up assessment, an average of 62° and 77° was achieved for proximal interphalangeal joint active and passive range of motion, respectively. Pain levels were low (median score of 0 at rest and 1 ranging, out of 10). Four patients suffered minor pin site infections.

Conclusion

Distraction ligamentotaxis is a useful part of the armamentarium, especially in the absence of more suitable procedures. It is important to select appropriate patients, educate, and ensure adherence to postoperative therapy. Employing the Deshmukh frame modification streamlines the theatre processes, and removal of wires at approximately 4 weeks minimizes risk of pin site infection.

Hand and Wrist Injuries: Common Problems and Solutions

Injuries to the hands and wrist are common in athletes. Injuries include acute fractures, dislocations, ligamentous, and tendon injuries, as well as more chronic injuries such as sprains and strains. Complications in the treatment of sports injuries of the hand and wrist may be divided into 2 categories: incorrect or delayed diagnosis and iatrogenic injury related to treatment. This article highlights common sports injuries of the hand and wrist and their complications, and includes tips for successful management.

Management of Proximal Interphalangeal Joint Fracture Dislocations

Fracture dislocations of the proximal interphalangeal (PIP) joint of the finger are often caused by axial load applied to a flexed joint. The most common injury pattern is a dorsal fracture dislocation with a volar lip fracture of the middle phalanx. Damage to the soft-tissue stabilizers of the PIP joint contributes to the deformity seen with these fracture patterns. Unfortunately, these injuries are commonly written off and left untreated. A late-presenting PIP joint fracture dislocation has a poor chance of regaining normal range of motion. The provider must be suspicious of these injuries. Treatment options and algorithm are reviewed.

Complications of Proximal Interphalangeal Joint Injuries: Prevention and Treatment

Proximal interphalangeal joint injuries are one of the most common injuries of the hand. The severity of injury can vary from a minor sprain to a complex intra-articular fracture. Because of the complex anatomy of the joint, complications may occur even after an appropriate treatment. This article provides a comprehensive review on existing techniques to manage complications and imparts practical points to help prevent further complications after proximal interphalangeal joint injury.

Mid-Term Outcomes After Open Reduction Internal Fixation of Proximal Interphalangeal Joint Dorsal Fracture-Dislocations Through a Volar, Shotgun Approach and a Review of the Literature

Background:

Proximal interphalangeal (PIP) fracture dislocations remain a complex injury pattern to treat. There are several treatment methods available aimed to restore stability, preserve range of motion, and reconstitute the articular surface. This study looked at the mid-term clinical and radiographic results of open reduction internal fixation through a shotgun approach of comminuted PIP fracture dislocations.

Methods:

A retrospective review was conducted of all PIP fracture dislocations treated through a volar, shotgun approach at a single institution over a 15-year period. Patients identified were contacted and asked to return to the office for clinical and radiographic evaluation. Patient reported outcomes were assessed with the Michigan hand questionnaire (MHQ) and visual analog scale (VAS) for pain.

Results:

5 patients returned to the office for further evaluation with average follow-up of 69 months (range, 33-133 months). 3 patients were found to have post traumatic arthritis on radiographs. 1 case had recurrent instability and one case had a deep infection, both necessitating further surgical intervention. Average PIP arc of motion was found to be 79°. Average VAS score of 0 and MHQ result of 95 (out of a possible score of 100) indicating no residual pain and excellent functionality of the affected hand.

Conclusion:

Open reduction internal fixation of comminuted PIP fracture dislocations utilizing the volar, shotgun approach provides excellent mid-term functional results despite the high incidence of post traumatic arthritis.

Treatment of unstable proximal interphalangeal joint fractures with hemi-hamate osteochondral autografts

The primary aim of this study was to assess the clinical and radiological results after hemi-hamate resurfacing arthroplasty in patients with acute or chronic unstable fractures of the base of the middle phalanx and to describe technical features that can facilitate the surgical procedure. Hemi-hamate arthroplasties were done in 19 patients (mean age 39 years) with an isolated fracture at the base of the middle phalanx that involved more than 40% of the articular surface. We assessed ten chronic cases (treated >6 weeks after fracture) and nine acute ones (<6 weeks) at a mean of 24 months. Pain scores, QuickDASH scores, grip strengths, range of motion and radiological findings were recorded at follow-up. At follow-up, the mean active flexion at the proximal interphalangeal joint was to 83° with a mean fixed flexion of 17° (active range of motion 66°). The mean active distal interphalangeal motion was 41°. The mean visual analogue scale score was 1.1. The mean QuickDASH score was 11. The mean pinch strength was 82% of the opposite side. Radiographs revealed one partial graft lysis.

LEVEL OF EVIDENCE

IV.

Lessons Learned from the Management of Complex Intra-Articular Fractures at the Base of the Middle Phalanges of Fingers

The use of dynamic traction splintage is established in the treatment of complex intra-articular phalangeal fractures. Several different systems have been used and we report our experience with one of these, the Pins and Rubber Traction System. A cohort of 14 patients with complex intra-articular fractures at the base of the middle phalanges of the fingers were treated and assessed prospectively over a 2.5-year period (mean, 20 months; range, 7–28 months). The mean active range of motion regained, at the proximal interphalangeal joint, was 74° (range, 0–100°). The mean total active motion of the injured digit was 196° (range, 40–275°). Refinements in the regime are suggested as a result of this investigation.

Post-Reduction Stability of the Proximal Interphalangeal Joint after Dorsal Fracture Dislocation-A Cadaveric Study

BACKGROUND

Proximal interphalangeal joint (PIPJ) dorsal fracture dislocations (DFD) are challenging injuries. Treatment aims to achieve stability of the PIPJ after reduction so that early motion can be initiated. We studied how increasing articular destruction would affect post reduction stability and investigate the amount of traction and PIPJ flexion needed to maintain the reduction.

METHODS

Increasing amounts (20%, 40% and 60%) of damage to the volar lip of the middle phalanx in cadaveric specimens were created to represent PIPJ DFD that were stable, of tenuous stability and frankly unstable. Traction forces and PIPJ flexion needed to maintain the reduction were then measured.

RESULTS

The PIPJ DFD with 20% damage were stable and did not subluxe while the one with 40% articular involvement was stable after reduction. For unstable the PIPJ with 60% involvement, the more the PIPJ was flexed, the less traction force was needed to hold the joint in reduction. For PIPJ flexion of 20 degrees, a minimum 4.4N of force is needed to maintain reduction while PIPJ flexion of 10 degrees required a minimum 5.0N of force. No amount of force could maintain PIPJ reduction if traction was performed in full extension.

CONCLUSIONS

In our model, PIPJ DFD with less than 30% articular damage are stable while those with 30% to 50% of involvement have tenuous stability. For the unstable PIPJ DFD, traction obviates the need for excessive flexion of the PIPJ to maintain joint reduction. This information should be considered in treatment modalities for PIPJ DFD, as well in the design of external traction devices for the treatment of PIPJ DFD.

Internal Fixation of Unstable Fracture Dislocations of the Proximal Interphalangeal Joint

We report a group of 14 patients with fracture dislocations of the proximal interphalangeal joint with fracture fragments of adequate size to allow reduction of the proximal interphalangeal joint and internal mini screw fixation of the bone fragment attached to the palmar plate to the base of the middle phalanx. Three years after surgery, (range 25–52 months) the average total active range of motion of the proximal interphalangeal joint was 100° (range 65–115°) for the acute group (operation within 14 days of injury, n = 7) and 86° (range 60–110°) for the chronic group (operation on average 46 days after injury, range 21–120 days, n = 7). Longer delay from injury was associated with a decreased total range of motion ( P = 0.028). Further subluxation occurred in three chronic group patients, one required further surgery. The key to successful treatment of this injury is the re-establishment of joint congruity and early mobilization. With appropriate patient selection, pain free, satisfactory range of motion can be achieved. There is a risk of persistent subluxation or dislocation, particularly if treatment is delayed.