Isolated Talonavicular Arthrodesis as Treatment for Flexible Progressive Collapsing Foot Deformity: A Case Series.

Background: For the younger, more active patient with flexible symptomatic progressive collapsing foot deformity (PCFD), joint-sparing procedures may be preferred to preserve functional motion. Isolated talonavicular (TN) arthrodesis has been described for treatment of rigid and flexible PCFD for patients that are older and less active whose deformity is still correctable through the TN joint. The purpose of this study was to evaluate radiographic and clinical outcomes in patients with PCFD treated with isolated triplanar correction with a TN joint arthrodesis. Methods: Forty-nine patients (53 feet) with flexible PCFD underwent isolated TN arthrodesis. Weightbearing radiographs were performed pre- and postoperatively, and measurements included lateral talar-first metatarsal angle, calcaneal pitch, TN coverage angle, and the anteroposterior (AP) talar-first metatarsal angle. The Foot and Ankle Ability Measure (FAAM) and Veterans-Rand 12-Item Health Survey (VR-12) scores were also collected. Results: Thirty-five females and 14 males were evaluated with a mean age of 63 years, at an average follow-up of 41.3 months. Significant improvements were found radiographically. Lateral radiographs demonstrated improvements in lateral talar-first metatarsal angle from 25.2 degrees preoperatively to 9.5 degrees postoperatively (P < .001) and calcaneal pitch from 14.9 degrees preoperatively to 17.5 degrees postoperatively (P < .001). AP radiographs showed the TN coverage angle improving from 35.0 degrees to 4.9 degrees postoperatively (P < .001) and AP talar-first metatarsal angle improving from 17.3 degrees to 5.9 degrees postoperatively (P < .001). Clinical outcomes were improved in the FAAM pain score (48.6 to 39.2, P = .130), FAAM ADL score (53.8 to 69.2, P = .002), FAAM Sport score (29.5 to 40.7, P = .099), and the overall FAAM score (47.7 to 63.1, P = .006). Patient satisfaction with medical care was 85.2/100 postoperatively. Conclusion: Isolated TN arthrodesis is a viable surgical option for older, lower-demand patients with flexible PCFD. This study demonstrated significant improvements in radiographic alignment and FAAM scores. Comparative studies with other surgical procedures should be performed to determine which is the best technique for older, lower-demand patients with flexible PCFD. Level of Evidence: Level III, retrospective cohort study.

Long-Term Outcomes in Female Patients With Carpometacarpal Arthroplasty and Metacarpophalangeal Fusion Compared With the Unoperated Side or Carpometacarpal Arthroplasty.

PURPOSE: Patients with carpometacarpal (CMC) osteoarthritis (OA) often present with metacarpophalangeal (MP) hyperextension and/or thenar atrophy. This study hypothesizes that MP fusion (MPF) performed at the time of CMC arthroplasty (CMCA) for patients who have moderate-to-severe thenar atrophy, MP hyperextension >30°, or MP arthritis will have greater long-term pinch strength and improvements in the Quick Disabilities of the Arm, Shoulder and Hand (QuickDASH) score from preoperative values when compared with the unoperated side or those who had CMCA only. METHODS: This study involved a retrospective review of long-term results from patients who underwent either CMCA or CMCA/MPF. The QuickDASH score, the pain visual analog scale (VAS), and an average of three pinch readings from each thumb were measured on the Baseline pinch gauge and recorded with a correction for hand dominance in right-handed patients. RESULTS: Fifty-three female patients with 70 operated thumbs were included in the study. The mean age was 67.2 years. There were 29 CMCAs and 41CMCA/MPFs. The mean follow-up was 6.3 years (range 2-16.9 years). At the latest follow-up, the mean CMCA/MPF pinch strength (11.3 lbs) was significantly stronger than that of CMCA (8.0 lbs) and carpometacarpal osteoarthritis thumbs (8.9 lbs). There was no significant difference in pinch strength between patients who underwent a CMCA and CMCOA thumbs (8.0 lbs vs 8.9 lbs, respectively). Preoperative QuickDASH demonstrated worse function in the CMCA/MPF group (55.8 vs 36.5). At the latest follow-up, QuickDASH and VAS revealed similar values in both the CMCA/MPF (10.5 and 0.66) and CMCA (18.5 and 0.52) groups. CONCLUSION: Long-term results demonstrate stronger pinch and greater improvement in QuickDASH scores in patients who underwent CMCA/MPF compared with those who underwent a CMCA or untreated carpometacarpal osteoarthritis thumbs. TYPE OF STUDY/LEVEL OF EVIDENCE: Therapeutic IV.

Outcomes of Surgically Treated Purely Ligamentous Stage II Lisfranc Injuries.

BACKGROUND: Low-energy stage II Lisfranc injuries are rare, and treatment can be operative or nonoperative based on a surgeon's assessment of midfoot stability. No previously published patient-reported outcome measures (PROMs) data for Lisfranc injuries isolates purely ligamentous stage II injuries. The purpose of this study was to analyze PROMs for patients who underwent operative management of stage II Lisfranc injuries. METHODS: Thirty-nine patients (39 feet) with confirmed Nunley-Vertullo stage II Lisfranc injuries between May 2012 and February 2022 were identified through a retrospective chart review. PROMs that were analyzed were the visual analog scale (VAS) pain scale, Veterans RAND 12-Item Health Survey (VR-12), Foot and Ankle Ability Measure (FAAM), and patient satisfaction. RESULTS: Thirty-two open reduction internal fixations (ORIFs) and 7 fusions were performed. The mean latest follow-up was 44.6 (range, 12-92) months. There were 2 complications (5%, 2/39) that required a revision procedure. Twenty-six patients (67%, 26/39) underwent secondary surgery to remove retained hardware. The mean time to hardware removal was 3.97 (range, 2.70-7.47) months. The overall mean patient satisfaction score with overall medical care including clinical visits and interactions with medical staff personnel was 93.6/100. All PROMs (VAS, VR-12, FAAM) demonstrated statistically significant improvement (P < .05) from preoperative (injury) values to latest follow-up postinjury values. CONCLUSION: Patients who were treated surgically with stage II purely ligamentous Lisfranc injuries via the methods used were found to mostly undergo hardware removal and have high levels of overall satisfaction with their process of medical care. LEVEL OF EVIDENCE: Level IV, retrospective case series.

Outcomes of Nitinol Compression Staples in Tarsometatarsal Fusion.

BACKGROUND: Tarsometatarsal (TMT) arthrodesis is commonly performed in the management of midfoot arthritis, trauma, or deformity. The purpose of this study was to collect aggregate data (demographic, surgical, and perioperative outcomes) on patients who previously had a TMT fusion with BME compression staples. METHODS: Sixty-six patients underwent TMT fusion with BME compression staples. Outcomes included demographics, surgical information, the Veterans Rand VR-12 Health Survey, Foot and Ankle Ability Measure (FAAM), visual analog scale (VAS), Revised-Foot Function Index (FFI-R), Ankle Osteoarthritis Scale (AOS), patient satisfaction survey scores, radiographic fusion rate, level of pain reduction, and complications. Sixty-six patients (68 feet) were analyzed (59 females) with an average age of 64 years (range, 18-83). The mean latest follow-up was 35.9 (range, 6-56.6 months). RESULTS: The average surgical time was 38.1±14.3 minutes (range, 11-75). All outcomes improved significantly (P < .001) from preoperative to latest follow-up except for the VR-12 Mental and Physical score. The average time to fusion determined by radiographs was 8.4 weeks (range, 6.1-46.1 weeks). Wound complications were not seen. Indications for subsequent surgeries (26.5%, 18/68 feet) in this current study included pain (n = 14), broken staples, and nonunion (n = 3). CONCLUSIONS: The fusion rate in this study, 89.7%, was similar to values reported in the literature. The patient satisfaction score of 81.9 at latest follow-up is consistent with patient satisfaction for other methods of fusion. LEVEL OF EVIDENCE: Level IV, retrospective case series.